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Tytuł:
Morphological variability of leaves of Sorbus domestica L. in Croatia
Autorzy:
Poljak, I.
Kajba, D.
Ljubic, I.
Idzojtic, M.
Powiązania:
https://bibliotekanauki.pl/articles/57486.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
service tree
morphological variability
leaf
morphology
Sorbus domestica
population variability
geographic differentiation
ecological differentiation
Croatia
Opis:
The paper studies the morphological variability of the service tree populations in the continental and Mediterranean regions of Croatia. The inter- and intra-population variability, as well as eco-geographic population differentiation, was established on the basis of eight measured morphological characteristics of two types of leaflets (lateral and terminal) and two derived ratios, using descriptive and multivariate statistical methods. The conducted research established a high variability of morphological characteristics. In comparison with lateral leaflets, terminal leaflets showed a higher degree of variability for the majority of the studied variables. The differences between the trees within populations, as well as the differences between populations, were confirmed for all studied characteristics. The study also confirmed a trend of population variations according to the eco-geographic principle. Populations from climatically different and geographically distant habitats, in other words from the Mediterranean and the continental region, differed in the majority of studied characteristics. In addition to the established pattern of ecotypical variability between the continental and the Mediterranean regions, the clinal variability with regard to altitude and mean annual temperature was also confirmed. Small, although statistically significant clinal variability with regard to the longitude was recorded for two measured characteristics. The conducted study provided insights into the variability of the service tree populations in Croatia, which is a basis for further research that should be implemented in order to produce guidelines for the breeding and conservation of genetic resources of this rare and endangered noble hardwood species.
Źródło:
Acta Societatis Botanicorum Poloniae; 2015, 84, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological and molecular differentiation of the Croatian populations of Quercus pubescens Willd. [Fagaceae]
Autorzy:
Franjic, J
Liber, Z.
Skvorc, Z.
Idzojtic, M.
Sostaric, R.
Stancic, Z.
Powiązania:
https://bibliotekanauki.pl/articles/56985.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
morphological differentiation
molecular differentiation
Croatia
plant population
Quercus pubescens
Fagaceae
random amplified polymorphic DNA analysis
introgression
Opis:
Taxonomy of the genus Quercus L. is very complicated and often controversial because of its great variability and intense gene flow among the related species. The purpose of this research was to determine morphological and molecular variation, relationships and taxonomic status of the Croatian populations of Quercus pubescens Willd. using morphological analysis of the leaves and RAPD-PCR technique. The results of the morphological and molecular analyses were very similar, both showing differentiation of the southern (Mediterranean) from the northern (Continental) pubescent oak populations. These two groups were clearly separated and the estimated gene flow among the populations that belong to different groups (Nm=1.38) is significantly less than among the populations that belong to the same group (Nm=3.70). The obtained results were compared to the available studies. This study confirms a high variability of the Q. pubescens populations, but differences were not so big to confirm the opinion of existence of several species in this area. The conclusion is that the southern Croatian populations could be pure Q. pubescens populations, while the peculiarities of the northern Croatian populations originate probably from the Q. petraea introgression.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 2; 123-130
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic and morphological differentiation between Melica ciliata L. and M. transsilvanica Schur (Poaceae) in Europe reveals the non-presence of M. ciliata in the Polish flora
Autorzy:
Szczepaniak, M.
Cieslak, E.
Powiązania:
https://bibliotekanauki.pl/articles/58124.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
genetic differentiation
morphological differentiation
Melica ciliata
Melica transsilvanica
Poaceae
Europe
Polska
flora
biodiversity protection
wild species
conservation
morphological variation
AFLP marker
Opis:
A good knowledge of species delimitation is crucial for the biodiversity protection and the conservation of wild species. We studied the efficiency of AFLP markers and morphological characters to assist species determination for Melica ciliata L. and M. transsilvanica Schur within European range of distribution, including isolated and range-limit populations of "M. ciliata" (i.e. M. cf. ciliata) from the Polish Sudetes, where it is regarded as critically endangered. AFLP markers were found to be more effective then morphological characters (more or less continuous) in distinguishing the both studied species. AMOVA revealed very low genetic diversity within populations and high differentiation among populations of M. ciliata and M. transsilvanica (FST = 0.89 and 0.95, respectively). The species-diagnostic AFLP markers of M. transsilvanica shared with "M. ciliata" from the Sudetes were detected. On the other hand, no species-diagnostic genetic markers of M. ciliata or hybrid-diagnostic markers of M. × thuringiaca were found within "M. ciliata". PCoA and NJ showed an overlapping genetic diversity of "M. ciliata" and M. transsilvanica. Hierarchical AMOVA supported the absence of a significant genotypic distinction between "M. ciliata" and M. transsilvanica. ANOVA showed that the length ratio of lower to upper glumes was the best morphological character to discriminate between M. ciliata and M. transsilvanica. Combined morphological and genetic data show that M. ciliata is not currently present in Poland as its putative Polish populations represent M. transsilvanica. A significant decrease in genetic variability that could influence viability was not observed the in Sudetian populations of M. transsilvanica. However, the population size changes significantly as a result of plant succession. Correction of the northern limit of the continuous distribution of M. ciliata L. in Central Europe is presented.
Źródło:
Acta Societatis Botanicorum Poloniae; 2011, 80, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Habitat differentiation of the Myriophyllum alterniflorum and Littorella uniflora phytocoenoses in Poland
Autorzy:
Klosowski, S
Szankowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/56680.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
phytocoenosis
Polska
plant community
Littorella uniflora
Myriophyllum alterniflorum
habitat differentiation
Opis:
The present study showed the ecological differentiation of phytocoenoses dominated either by Myriophyllum alterniflorum or by Littorella uniflora, which in Poland are classified within the Myriophylletum alterniflori or Myriophyllo-Littorelletum association. The properties which best differentiated the waters of the above types of phytocoenoses were calcium and factors associated with the carbonate complex (pH, electrolytic conductivity, total and carbonate hardness), and pH in the case of substrates. The most distinct differences in the habitats were found between the phytocoenoses dominated by L. uniflora from the Pomeranian Lobelia lakes and those dominated by M. alterniflorum from the Łęczna-Włodawa Lake District, in which other species from the Littorelletea uniflorae class were absent. The L. uniflora phytocoenoses are associated with soft waters poor in Ca2+ and with the lowest values of pH, electrolytic conductivity, dissolved organic matter (COD-KMnO4) and dissolved SiO2. The substrates they inhabit are mineral and more acidic. By contrast, the values of the above-mentioned properties are considerably higher in the case of the phytocoenoses from the Łęczna-Włodawa Lake District. The habitats of the M. alterniflorum phytocoenoses from the Pomeranian Lobelia lakes occupy an intermediate position and are more similar to those of M. alterniflorum from the Łęczna-Włodawa Lake District. The results obtained in this study suggest that the phytocoenoses of L. uniflora and M. alterniflorum should not be included in the same association. Further studies are, therefore, necessary to resolve this problem. The comparative analysis of the present ecological findings and data obtained from other regions of Europe show that in Poland the phytocoenoses dominated either by L. uniflora or by M. alterniflorum, in which the contribution of Littorelletea uniflorae species is appreciable, are clearly associated with soft waters and their habitats are representative of the Littorelletea uniflorae class. The massive development of the phytocoenoses with both L. uniflora and M. alterniflorum in the Lobelia lakes is not always indicative of the increase in water hardness and euthrophication of waters typical of the communities of the Littorelletea uniflorae class. The M. alterniflorum dominated phytocoenoses without other Littorelletea species could be good indicators of the above processes taking place in such water ecosystems.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
De novo sequencing and comparative transcriptome analysis of white petals and red labella in Phalaenopsis for discovery of genes related to flower color and floral differentiation
Autorzy:
Yang, Y.
Wang, J.
Ma, Z.
Sun, G.
Zhang, C.
Powiązania:
https://bibliotekanauki.pl/articles/58306.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
sequencing
RNA sequence
transcriptome
Phalaenopsis
gene
flower
colour
floral differentiation
diversity
Opis:
Phalaenopsis is one of the world’s most popular and important epiphytic monopodial orchids. The extraordinary floral diversity of Phalaenopsis is a reflection of its evolutionary success. As a consequence of this diversity, and of the complexity of flower color development in Phalaenopsis, this species is a valuable research material for developmental biology studies. Nevertheless, research on the molecular mechanisms underlying flower color and floral organ formation in Phalaenopsis is still in the early phases. In this study, we generated large amounts of data from Phalaenopsis flowers by combining Illumina sequencing with differentially expressed gene (DEG) analysis. We obtained 37 723 and 34 020 unigenes from petals and labella, respectively. A total of 2736 DEGs were identified, and the functions of many DEGs were annotated by BLAST-searching against several public databases. We mapped 837 up-regulated DEGs (432 from petals and 405 from labella) to 102 Kyoto Encyclopedia of Genes and Genomes pathways. Almost all pathways were represented in both petals (102 pathways) and labella (99 pathways). DEGs involved in energy metabolism were significantly differentially distributed between labella and petals, and various DEGs related to flower color and floral differentiation were found in the two organs. Interestingly, we also identified genes encoding several key enzymes involved in carotenoid synthesis. These genes were differentially expressed between petals and labella, suggesting that carotenoids may influence Phalaenopsis flower color. We thus conclude that a combination of anthocyanins and/or carotenoids determine flower color formation in Phalaenopsis. These results broaden our understanding of the mechanisms controlling flower color and floral organ differentiation in Phalaenopsis and other orchids.
Źródło:
Acta Societatis Botanicorum Poloniae; 2014, 83, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variation of cowslip [Primula veris L.] populations [West Poland]
Autorzy:
Morozowska, M
Krzakowa, M.
Powiązania:
https://bibliotekanauki.pl/articles/57550.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Primulaceae
Polish population
botany
Primula veris
allozyme
gene flow
Primula
genetic differentiation
Opis:
Genetic variation of twelve Polish populations of Primula veris L. from western Poland was investigated in respect of six enzyme systems: 6-phosphogluconate dehydrogenase (6PGD), diaphorase (DIA), menadione reductase (MNR), formate dehydrogenase (FDH), isocitrate dehydrogenase (IDH) and glutamate oxaloacetate transaminase (GOT). Only two of them (6PGD and DIA) were polymorphic and all populations were compared according to four loci and eight alleles. For 6PGD only one out of the two detected loci (locus 6PGD-2) was polymorphic and consisted of three alleles a, b and c. For DIA each of two detected loci had two alleles. For 6PGD-2 one population was monomorphic and four populations were monomorphic for DIA-1 and DIA-2. The rest of the populations were polymorphic with low frequency of heterozygotes. The low heterozygosity level, found in the examined populations, was confirmed by high values of the fixation index (F). The level of genetic differentiation among GST populations specified for each polymorphic loci, was equal to 0.045 for 6PGD-2 and had the value of 0.078 for DIA-2 and 0.186 for DIA-1. Nm value for polymorphic loci was 1.10 for DIA-1 and 2.94 for DIA-2, and for 6PGD-2 was 5.33, what indicates some gene flow between the examined populations. The dendrogram constructed on the basis of genotype frequencies showed that the populations were divided into two groups, however the most southern population No. 2 was clearly similar to the northern population No. 8.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differentiation of morphological traits of common tansy (Tanacetum vulgare L.) originating from different stands
Zróżnicowanie cech morfologicznych wrotycza pospolitego (Tanacetum vulgare L.) pochodzącego z różnych stanowisk
Autorzy:
Kesik, T.
Wojciechowska, A. E.
Pitura, K.
Powiązania:
https://bibliotekanauki.pl/articles/27176.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
differentiation
morphological trait
common tansy
tansy
Tanacetum vulgare
stand
soil
chemical composition
Opis:
The aim of the study was to determine the effect of pH and soil chemical composition on morphological traits of common tansy (Tanacetum vulgare L.). A two-year study was conducted based on observations, measurements and analyses of material collected from 24 stands in the following regions: Równina Włocławska (Włocławek Plain), Wyżyna Lubelska (Lublin Upland), Padół Zamojski (Zamość Depression), Działy Grabowieckie (Grabowiec Divide) Płaskowyż Suchedniowski (Suchedniów Plateau), Wysoczyzna Siedlecka (Siedlce High Plain) and Niecka Połaniecka (Połaniec Basin). Morphological traits of tansy shoots were determined: number of plants per clump, stem length, number of leaves per plant, total leaf length, petiole length, number of branches from the main stem, number of flower heads per corymb and fl ower head diameter. A soil analysis was performed determining the content of magnesium, potassium and phosphorus available for plants. The soil pH was also determined. The collected results indicate significant differentiation of the investigated samples, both in terms of morphological traits of the shoots and the chemical composition of the soils. A negative correlation was found between soil pH and number of leaves per shoot as well as number of branches per corymb. A positive correlation was noted between soil pH and total leaf length as well as between magnesium content and number of flower heads per corymb. The increased content of available phosphorus in the soil was associated with petiole shortening. A growth trend in the tansy shoot length was observed at larger amounts of available magnesium in the soil. On soils with low nutrient availability and a low pH, a reduced population density of the species in question was observed.
Celem pracy było określenie wpływu odczynu i składu chemicznego gleby, na cechy morfologiczne wrotyczu pospolitego (Tanacetum vulgare L.). Dwuletnie badanie zostały przeprowadzone na podstawie obserwacji, pomiarów i analiz materiału pobranego z 24 stanowisk rejonów: Równiny Włocławskiej, Wyżyny Lubelskiej, Padołu Zamojskiego, Działów Grabowieckich, Płaskowyżu Suchedniowskiego, Wysoczyzny Siedleckiej oraz Niecki Połanieckiej. Oznaczono cechy morfologiczne pędów wrotyczu: liczbę roślin w kępie, długość łodygi, liczbę liści na roślinie, długość całkowitą liści, długość ogonka liściowego; liczbę rozgałęzień od głównego pędu, liczbę koszyczków w podbaldachu oraz średnicę koszyczków. Wykonano analizę gleby określając zawartość dostępnego dla roślin magnezu, potasu i fosforu. Oznaczono również pH gleby. Zebrane wyniki wskazują na znaczne zróżnicowanie badanych prób zarówno pod względem cech morfologicznych pędów jak i składu chemicznego gleb. Stwierdzono ujemny związek pomiędzy odczynem gleby a liczbą liści na pędzie oraz liczbą rozgałęzień w podbaldachu. Dodatnią korelację odnotowano pomiędzy pH gleby a długością całkowitą liści, a także między zawartością magnezu, a liczbą koszyczków w podbaldachu. Zwiększona zawartość dostępnego fosforu w glebie wiązała się ze skróceniem ogonka liściowego. Zaobserwowano tendencję wzrostową dla długości pędów wrotyczu przy większej ilości przyswajalnego magnezu w glebie. Na glebach mało zasobnych i o niskim pH zauważono ograniczoną liczebność występowania populacji omawianego gatunku.
Źródło:
Acta Agrobotanica; 2008, 61, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microspatial structure of the seed bank of xerothermic grassland - intracommunity differentiation
Autorzy:
Czarnecka, J
Powiązania:
https://bibliotekanauki.pl/articles/56952.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
microspatial structure
spatial structure
intracommunity differentiation
species diversity
seed bank
xerothermic grassland
Opis:
The study analyses the quantity and spatial structure of the seed bank of the xerothermic grassland located in the Biała Góra near Tomaszów Lubelski (Central Roztocze Region). The seed stock of the bank was compared with the vegetation found in two different patches of the examined grassland. The number of seeds per square meter was estimated at 5328 and 5355, depending on the patch. The seed bank's spatial organisation is clustered. The most important factors determining this spatial distribution are: remaining of the seeds in close vicinity of parent plants, and the "group" dispersal of the seeds and fruits.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological differentiation of Primula veris L. pollen from natural and cultivated populations
Autorzy:
Morozowska, M
Idzikowska, K.
Powiązania:
https://bibliotekanauki.pl/articles/58673.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
statistical analysis
Primulaceae
natural population
cultivated population
pollen morphology
Primula veris
morphological differentiation
Opis:
Micromorphological characterisation and the comparative statistical analysis of the size of Primula veris L. pollen grains collected in three natural and three cultivated populations were done. Observations were carried out with SEM. The obtained measurements were analysed with the use of one-way ANOVA, Kruskal-Wallis Test and the Student-t Test. Pollen grains from long-styled ('pin') flower-morphs were mainly 6 colpate and from shortstyled ('thrum') flower-morphs 8 colpate. Colpi of some grains from 'thrum' flowers were 'sinuous' and 'circular', and they incised into the apocolpium zone. Ornamentation of 'pin' pollen grains was microreticulate, with lumina up to 0.8 μm wide, and for pollen grains from 'thrum' flowers was reticulate and eureticulate with lumina 1.1-1.7 μm wide. In lumina of mesocolpium area some free columellae were observed. Pollen grains from 'thrum' flower-morphs were more variable in size, both in natural and in cultivated populations, than grains from 'pin' flower-morphs. The differences in mean length (P) and breadth (E) of pollen grains from 'thrum' flowers collected in cultivated populations were statistically important (FP = 3.154 for the critical F005 = 3.098; K-We = 7.469 for the critical Test value α=005 = 5.991). Pollen grains from 'thrum' flowers were bigger when coming from plants growing in natural populations (tE = 2.784 for the critical Test value α=005 = 2.001).
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Alnus spp. pollen seasons in Lublin and Warszawa [Poland], 2001-2007
Analiza sezonow pylkowych Alnus spp. w Lublinie i Warszawie [Polska]
Autorzy:
Weryszko-Chmielewska, E
Rapiejko, P.
Powiązania:
https://bibliotekanauki.pl/articles/27452.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
pollen concentration
Polska
Alnus
Warsaw city
Lublin city
regional differentiation
pollen season
seasonal variation
Opis:
The course of Alnus spp. pollen seasons was compared in two cities, Lublin and Warsaw, located at a small distance from each other but included in different climatic regions of Poland. The studies were conducted using the volumetric method. It was shown that Alnus pollen seasons started in Warsaw earlier and were much shorter than in Lublin. The span between the start dates of pollen seasons was similar and it was 53-54 days. Peak days occurred in both cities most often in the second decade of March, but in Warsaw they were recorded several days earlier. Maximum concentrations reached higher values in Lublin, whereas annual totals were higher in Warsaw. The number of days with the concentration > 50 pollen grains × m⁻³ per 24 hours was 5-27 days for Warsaw and 10-19 days for Lublin over 7 years of study.
Porównano przebieg sezonów pyłkowych Alnus spp. w dwóch miastach, Lublinie i Warszawie, położonych w niewielkiej odległości ale zaliczanych do różnych regionów klimatycznych Polski. Badania prowadzono metodą wolumetryczną. Wykazano, że sezony pyłkowe Alnus rozpoczynały się w Warszawie wcześniej i były znacznie krótsze niż w Lublinie. Rozpiętość w zakresie startu sezonów pyłkowych była zbliżona i wynosiła 53-54 dni. Dni z maksymalnymi stężeniami ziaren pyłku olszy występowały w obu miastach najczęściej w drugiej dekadzie marca, ale w Warszawie rejestrowano je wcześniej. Maksymalne stężenia osiągały wyższe wartości w Lublinie, natomiast sumy roczne ziaren pyłku olszy były wyższe w Warszawie. Liczba dni ze stężeniem >50 ziaren pyłku × m⁻³ w ciągu 24 godzin wynosiła 5-27 dni dla Warszawy i 10-19 dni dla Lublina w ciągu 7 lat badań.
Źródło:
Acta Agrobotanica; 2007, 60, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological variability of Juniperus phoenicea [Cupressaceae] from three distant localities on Iberian Peninsula
Autorzy:
Mazur, M
Boratynska, K.
Marcysiak, K.
Gomez, D.
Tomaszewski, D.
Didukh, J.
Boratynski, A.
Powiązania:
https://bibliotekanauki.pl/articles/57298.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
variability
cone
juniper
statistical analysis
locality
Cupressaceae
biometry
Iberian Peninsula
Juniperus phoenicea
morphological differentiation
Opis:
The aim of the present study was biometrical comparison of three Iberian populations of Juniperus phoenicea, represented by the subsp. turbinata and subsp. phoenicea. Eight features of the cones and seeds, two of the shoots and leaves were studied. The biometrical analysis of three distant populations of J. phoenicea shows great taxonomic distances among them. Two of them, representatives of J. phoenicea subsp. turbinata, are closer related each other than to the third, which represents J. phoenicea subsp. phoenicea. These results confirm the genetic differentiation of the taxons and also the biochemical and morphologic division of them. Nevertheless, the distances between particular populations are so great that more resemble the distances between species than between subspecies.
Źródło:
Acta Societatis Botanicorum Poloniae; 2003, 72, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial differentiation of airborne arboreal pollen in Lublin (Poland)
Przestrzenne zróżnicowanie stężenia pyłku drzew w powietrzu Lublina (Polska)
Autorzy:
Piotrowska-Weryszko, K.
Weryszko-Chmielewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/28076.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
spatial differentiation
aerobiology
airborne pollen
arboreal habitat
pollen count
daily variation
tree
Lublin area
Polska
Opis:
The study compared the occurrence of airborne pollen of 7 arboreal taxa (Corylus, Alnus, Cupressaceae/Taxaceae, Populus, Fraxinus, Betula and Carpinus) during the period 2007–2009 from two sites in Lublin city, SE Poland. The sites differed in the character of building development and surrounding vegetation. Pollen monitoring was conducted by the volumetric method using two Hirst-type samplers. Daily and intradiurnal pollen counts were determined. For all the taxa, Spearman’s test revealed statistically significant positive correlations between daily pollen fluctuations at two sites. Nevertheless, the Mann–Whitney U-test showed differences for Cupressaceae/Taxaceae, Fraxinus, Populus and Corylus between sites. The intradiurnal pattern of pollen concentration was characterized by high variation. Cupressaceae/Taxaceae and Populus, clearly differed in hourly pollen concentrations at both sites. Moreover, in the case of Betula and Alnus it was shown that a part of pollen recorded in Lublin can originate from long-distance transport. High pollen concentrations can be expected at different hours of the day. The lowest average pollen concentrations at both sites were found during morning hours at 5 and 6 a.m. Based on the obtained results, it can be concluded that data from a single pollen-sampling device are not representative of some taxa in the particular districts of the city. Average data obtained from at least two pollen samplers could provide optimum results.
W pracy porównywano dane z monitoringu pyłkowego prowadzonego w Lublinie na dwóch stanowiskach, które różniły się charakterem zabudowy i lokalną roślinnością. Analizowano występowanie w powietrzu pyłku 7 taksonów roślin drzewiastych (Corylus, Alnus, Cupressaceae/Taxaceae, Populus, Fraxinus, Betula i Carpinus) w latach 2007–2009. Badania prowadzono metodą wolumetryczną z wykorzystaniem aparatów typu Hirsta. Określano dobowe i godzinowe stężenia pyłku w powietrzu. Analiza testu Spearmana dla wszystkich badanych taksonów wykazała istotną pozytywną korelację między dobowymi koncentracjami pyłku rejestrowanymi na dwóch stanowiskach. Na podstawie testu U Mann–Whitney’a stwierdzono istotne różnice między stanowiskami dla stężeń pyłku Cupressaceae/ Taxaceae, Fraxinus, Populus i Corylus. Godzinowa rytmika stężenia pyłku charakteryzowała się dużą zmiennością. Cupressaceae/Taxaceae i Populus, wyraźnie różniły się pod względem godzinowych koncentracji pyłku na obu stanowiskach. Ponadto w przypadku Betula i Alnus wykazano, że część rejestrowanego w Lublinie pyłku może pochodzić z dalekiego transportu. Wysokich stężeń pyłku można spodziewać się w różnych godzinach doby. Najniższe średnie stężenia pyłku na obu stanowiskach stwierdzono w godzinach porannych o 5.00 i 6.00. Na podstawie uzyskanych wyników można przyjąć, że dane pochodzące z jednego punktu pomiarowego nie są reprezentatywne dla niektórych taksonów w poszczególnych częściach miasta. Optimum wyników mogłyby zapewnić średnie dane pochodzące z co najmniej dwóch aparatów pomiarowych umieszczonych w różnych dzielnicach.
Źródło:
Acta Agrobotanica; 2015, 68, 4
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological differentiation and distribution of non-glandular and glandular trichomes on Dracocephalum moldavicum L. shoots
Zróżnicowanie morfologiczne oraz rozmieszczenie włosków mechanicznych i wydzielniczych na pędach Dracocephalum moldavicum L.
Autorzy:
Dmitruk, M.
Weryszko-Chmielewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/28120.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
morphological differentiation
distribution
non-glandular trichome
glandular trichome
Dracocephalum moldavica
shoot
trichome
flower
leaf
stem
bract
Opis:
The structure, micromorphology and distribution of trichomes on Dracocephalum moldavicum L. shots were investigated using light and scanning electron microscopy (SEM). There were distinguished 3 types of non-glandular trichomes, 3 types of glandular trichomes and papillae of the osmophore in the epidermis of the corolla. The highest density of non-glandular and glandular trichomes was found on the abaxial surface of the calyx, on bracts and in the upper part of the stem. Structural variations in the head and stalk of long glandular trichomes were demonstrated. The dimensions of particular types of trichomes are given in the present paper. Differences in the structure of the trichomes of this species are presented, compared to literature data. The micromorphology of particular trichome types is documented in numerous photographs showing the rich ornamentation of the cuticle of non-glandular trichomes.
Źródło:
Acta Agrobotanica; 2010, 63, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intraspecific differentiation of reed grass Calamagrostis arundinacea [L.] Roth [Poaceae] populations revealed by peroxidase allozymes
Autorzy:
Krzakowa, M
Celka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/58313.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
intraspecific differentiation
reed grass
Calamagrostis arundinacea
Poaceae
plant population
peroxidase allozyme
natural population
Polska
peroxidase
geographic region
Opis:
The genetic Variation of Reed Grass Calamagrostis arundinacea (L.) Roth was investigated in 25 populations in various geographic regions of Poland. A total of 907 individuals were sampled for electrophoretic analysis of peroxidase loci (11 allozymes). Populations were characterised by genetic parameters e.g. heterozygosity level, Wright's fixation index (F) and polymorphism coefficient (Pg). Mean values of interpopulation variability level (GST=0.0310), total genetic diversity (HT=0.4102) and gene flow between populations (Nm=7.805) were also examined. All the populations were polymorphic and they remain in Hardy Weinberg equilibrium.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 4; 299-304
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taxonomic notes on the Polish Tulostoma species
Uwagi taksonomiczne do krajowych gatunków z rodzaju Tulostoma
Autorzy:
Tomaszewska, A.
Luszczynski, J.
Luszczynska, B.
Jaworska, J.
Powiązania:
https://bibliotekanauki.pl/articles/67560.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Tulostoma
taxonomy
Basidiomycota
Tulostomataceae
species differentiation
species distribution
Tulostoma brumale
Tulostoma fimbriatum
Tulostoma kotlabae
Tulostoma melanocyclum
Tulostoma squamosum
Opis:
Tulostoma genus Pers.: Pers. is represented in Poland by five species (Wojewoda 2003). Only two of those: Tulostoma brumale Pers.: Pers. and T. fimbriatum Fr. can be considered as a relatively common while others such as: Tulostoma kotlabae Pouzar, T. melanocyclum Bres. and T. squamosum (Gmelin in L.): Pers. are very rare. Observations of macrofungi of xerothermic habitats at the Nida Basin (Central Poland), demonstrated the existance of many varieties of particular taxa until now not listed in the Polish mycological literature, and also new sites of all so far described Tulostoma species. Recording of lower taxa such as: Tulostoma brumale Pers. var. longipes (Czern.) J. E. Wright, T. brumale Pers. var. pallidum (Lloyd) J. E. Wright, and T. fimbriatum Fr. var. campestre (Morgan) Moreno are identified at the study area.
Wyniki przedstawione w niniejszej pracy są wstępnym rezultatem badań mikologicznych, prowadzonych w siedliskach kserotermicznych w Niecce Nidziańskiej i Okręgu Chęcińskim. Praca podkreśla główne trudności związane z oznaczaniem taksonów z rodzaju Tulostoma, wskazuje na ich przyczyny oraz przedstawia propozycję rozwiązań problemów pojawiających się w trakcie oznaczania taksonów. Trudności mnożą się zwłaszcza, gdy dysponujemy coraz większą liczbą okazów, a różnice określonych cech zaczynają się pogłębiać. Jedną z takich propozycji są klucze do identyfikacji gatunków według cech makro- i mikroskopowych. Zawarte w kluczach opisy cech budowy makro- oraz mikromorfologicznej odnoszące się do niższych od gatunku taksonów, dają możliwości poprawnego ich oznaczenia w pełnym aspekcie taksonomicznym.
Źródło:
Acta Mycologica; 2011, 46, 2
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
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