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Tytuł:
Occurrence and characterization of Colletotrichum fuscum
Wystepowanie i charakterystyka Colletotrichum fuscum
Autorzy:
Zimowska, B.
Zalewska, D.
Król, E.D.
Powiązania:
https://bibliotekanauki.pl/articles/11543285.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
Colletotrichum fuscum
plant pathogen
phyllosphere
fungi
morphology
biotic activity
occurrence
oregano
Origanum vulgare
leaf
necrotic symptom
Opis:
During 2012–2014 in southeastern Poland the species Colletotrichum fuscum was isolated from the leaves of oregano (Origanum vulgare L.) showing the symptoms of necrotic, concentrically zoned spots with a lighter center and a slightly raised edge. Morphology of nine randomly chosen isolates from the fungus population and reference isolate CBS obtained from CBS-KNAW Fungal Biodiversity Centre were studied. Each isolate was cultured on PDA medium, at the temperatures 24°C for 14 days. The character of the cultures, the color of the averse and the reverse, the formation of morphological structures of the fungus, i.e. acervuli, conidia, appressoria and chlamydospores were studied. Ultrastructural observations of morphological structures were undertaken using scanning electron microscopy. The presence of setose acervuli, conidia, chlamydospores and appressoria was visible. Moreover, studies on the biotic effect between C. fuscum and other species of phyllosphere fungi of oregano showed that all tested fungi inhibited the growth of C. fuscum, but the size of the limiting effect was different. Fungi from genera Trichoderma and Clonostachys were found out to be the most effective and positive antagonists. Alternaria alternata, Botrytis cinerea and Fusarium spp. – despite the high values of IBE were considered negative antagonists.
W latach 2012–2014 w południowo-wschodniej Polsce z liści lebiodki pospolitej (Origanum vulgare L.) z nekrotycznymi, koncentrycznie strefowanymi plamami z jaśniejszym środkiem i lekko wzniesionym brzegiem wyizolowano Colletotrichum fuscum. Przebadano morfologię wybranych losowo z własnej kolekcji kultur dziewięciu izolatów grzyba oraz izolatu referencyjnego otrzymanego z CBS-KNAW. Izolaty hodowano na pożywce PDA w temperaturze 24°C przez okres 14 dni. W przypadku każdego izolatu określano charakter wzrostu kolonii, kolor awersu i rewersu, tworzenie struktur morfologicznych, tj. acerwulusów, konidiów, apresoriów oraz chlamydospor. Ponadto przeprowadzon badania wyżej wymienionych struktur morfologicznych przy użyciu skaningowego mikroskopu elektronowego SEM. Przeprowadzone badania wskazały na tworzenie przez C. fuscum charakterystycznych struktur niezbędnych do prawidłowej identyfikacji patogena, tj. konidiów, acerwulusów ze szczecinami, chlamydospor oraz apresoriów. Ponadto wyniki badań nad biotycznym oddziaływaniem C. fuscum na gatunki grzybów występujące w fyllosferze roślin lebiodki wykazały, że wszystkie grzyby w różnym stopniu ograniczały wzrost C. fuscum. Grzyby z rodzajów Trichoderma i Clonostachys uznano za najbardziej efektywnych antagonistów C. fuscum. Alternaria alternata, Botrytis cinerea oraz Fusarium spp., pomimo wysokich wartości IBE, uznane zostały za negatywnych antagonistów.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2016, 15, 4; 121-134
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmienność cech morfologicznych liści brzozy brodawkowatej (Betula pendula Roth) w Polsce
Leaf morphology in Polish populations of silver birch [Betula pendula Roth]
Autorzy:
Wojda, T.
Powiązania:
https://bibliotekanauki.pl/articles/973201.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
brzoza brodawkowata
rody hodowlane
proweniencje
Betula pendula
cechy morfologiczne
zmienność cech
liście
leśnictwo
drzewa leśne
leaf morphology
leaf shape
silver birch
Opis:
Variation in leaf morphology in 9 populations of the silver birch in Poland was investigated. 11 measurements were made on each leaf. Leaf width and length as well as perimeter and area were positively correlated with petiole length. There was also strong positive relationship between perimeter, width and area. Analysis of variance showed significant differences between provenances in most of features of leaf. Provenances Browsk, Chełm, Siedlce were the most similar to each other. Leaves from Augustów had the biggest length but their petiole length, perimeter and area were the smallest
Źródło:
Sylwan; 2007, 151, 03; 3-10
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variability in morphology of Microsphaera alphitoides Griffon et Maubl. in Poland
Autorzy:
Ufnalski, K
Przybyl, K.
Powiązania:
https://bibliotekanauki.pl/articles/56970.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
variability
powdery mildew
young tree
Polska
forest stand
nursery seedling
morphology
leaf
Microsphaera alphitoides
taxonomy
Quercus robur
oak
Quercus petraea
Opis:
The aim of this study was to verify descriptions of the morphology of the fungus responsible for powdery mildew on oak leaves of nursery seedlings and of young trees in forest stands. Infected, fully developed leaves from apical parts of stems of Quercus robur or Q. petraea were collected in two national parks and in six forest districts in Poland. The taxonomic characteres of all specimens were generally consistent with those given in keys for Microsphaera alphitoides. However, the limoniform shape of conidia, characteristic of two sites (nurseries), has not been found in available synopses. Limoniform conidia were significantly longer and wider than others. Agreat variety of forms of mycelium on leaves were observed. The mycelium appeared in three forms: (1) floccose or felted oval patches (always with yellow or brown discoloration), (2) faveolate oval patches (often with yellow or brown discoloration), and (3) felted or mealy mycelium along veins (rarely with discoloration). Mycelium without limoniform conidia appeared in all forms, while mycelium with limoniform conidia appeared only in the form of patches, always causing leaf discoloration.
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:
Biomonitoring with special reference to leaf and pollen morphology in Cassia sophera L. to detect roadside air pollution
Autorzy:
Talukdar, Partha
Dutta, Ankita
Powiązania:
https://bibliotekanauki.pl/articles/1167061.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Air pollution
Bioindicator
Biomonitoring
Cassia sophera
Leaf morphology
Pollen micro-morphology
Visible injuries on leaf
Opis:
The aim of biomonitoring study was to detect morphological deformities in leaf and pollen micro-morphology of Cassia sophera Linn. after exposure to vehicular air pollution. The study areas were selected based on three different roadsides such as control area designated as “C” at Serampore college campus as low vehicular movement area, Bi-lane roadside away 1.5 Km from Durgapur expressway as moderate vehicular movement designated as “M” and roadside near Durgapur Expressway designated as “H” because of continuous vehicular movements. Present studies attempted on Cassia sophera exposed to different levels of roadside air pollution were used to detect varying degrees of damage produced in its morphological characters with special reference to leaf shape and visible injuries as well as micro-morphological features of pollens at wet and dry conditions. In results, the damages were observed noticeable with chlorotic spots, necrosis, etc. It was not only showed morphological damage in leaf but also huge differences in the production of viable pollens with plants exposed to high levels of air pollution showed pollen production with no material content inside as well as with significantly (P<0.001 and P<0.01) reduced sizes compared to the plants exposed to low levels of air pollution. It is concluded that varying degrees of air pollution produces a huge impact at sub cellular, cellular and tissue levels. This biomonitoring study helps to know the alarming condition of roadside air pollution. Moreover, it can not be identified the effect of an individual or combination of air pollutant(s) such as particulates or CO or CO2 or SO2 or NOx or PAN or O3, etc. It is suggesting to further study with instruments to detect the load of air pollutants with special reference to particulates and gaseous pollutants.
Źródło:
World Scientific News; 2018, 105; 168-181
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Galls on Alstonia scholaris leaves as air pollution indicator
Autorzy:
Talukdar, Partha
Das, Kaushiki
Dhar, Shrinjana
Talapatra, Soumendra Nath
Swarnakar, Snehasikta
Powiązania:
https://bibliotekanauki.pl/articles/1189972.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Automobile air pollution
gall formation
bioindicator plant
leaf morphology and anatomy
Air Pollution Index (API)
Alstonia scholaris
Opis:
Air pollution arises mainly from automobiles and industries is well known fact. Monitoring and detection by instrument cannot be possible everywhere however, indication from plant species by their alterations in leaf morphology and anatomy may be a suitable easy screening measurement. The present study aims to detect morphological features with special reference to gall quantification and anatomy of leaves of Alstonia scholaris R. Br., found in eastern Indian urban and suburban area that are exposed to vehicular emission. The results indicated alterations of leaf morphology along with length (L), breadth (B), L/B ratio and significantly increased (P < 0.001, 0.01 and 0.05) Air Pollution Index (API). It is concluded that vehicular emission can be monitored as an early indication through increased API in A. scholaris. Further research would be needed in relation to secondary metabolites alteration, biochemical and genetic parameters to know pollutant susceptibility as an indicator. In addition, anatomical abnormalities in gall formation as well as numbers were also pronounced in leaves exposed to various load of air pollution.
Źródło:
World Scientific News; 2016, 52; 181-194
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leaf epidermis traits as tools to identify Solidago L. taxa in Poland
Autorzy:
Szymura, M.
Wolski, K.
Powiązania:
https://bibliotekanauki.pl/articles/19542.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
leaf
epidermis
Solidago
Polska
anatomy
morphology
stoma
trichome
Opis:
We used via light and scanning electron microscopy to study the leaf epidermis of five Solidago taxa from southwestern Poland. Light microscopy was employed to describe the epidermal surface, including stomatal types, the shape of epidermal cell walls, stomatal density, the distribution of stomata between the abaxial and adaxial epidermis, and stomatal guard cell length. From these observations we calculated the stomatal index (SI) and stomatal ratio (SR) as the basis for defining the type of leaf. From LM of transverse sections of leaf we described mesophyll structure, the presence of secretory canals, adaxial and abaxial epidermis thickness, and leaf thickness. We examined cuticular ornamentation, trichome features and epicuticular secretions by SEM. As determined by discriminatory analysis, the most important traits distinguishing these taxa were the stomatal index of the adaxial epidermis, leaf thickness, features of the walls of epidermal cells, and the presence and features of trichomes. On the basis of observations and measurements we created a key for distinguishing Solidago taxa.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2011, 53, 1
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and structure of internal secretory reservoirs on the vegetative organs of Inula helenium L. [Asteraceae]
Rozmieszczenie i struktura wewnetrznych zbiornikow wydzielniczych w organach wegetatywnych Inula helenium L. [Asteraceae]
Autorzy:
Sulborska, A
Powiązania:
https://bibliotekanauki.pl/articles/27685.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant anatomy
vegetative organ
rhizome
Compositae
structure
secretory cavity
stem
distribution
plant morphology
botany
leaf
Inula helenium
internal secretory reservoir
Opis:
The aim of the study was to investigate the structure and topography of endogenous secretory tissues of Inula helenium L. By using light and electron microscopy, morphological and anatomical observations of stems, leaves and rhizomes were made. It was shown that in the stems secretory cavities were situated in the vicinity of phloem and xylem bundles. The number of the reservoirs reached its maximum value (34) at shoot flowerig termination, whereas the cavities with the largest diameter were observed at full flowering stage (44.6 µm). In the leaf petioles and midribs, the reservoirs also accompanied the vascular bundles, and their number and size increased along with the growth of the assimilation organs. Observations of the cross sections of the rhizomes revealed the presence of several rings of secretory reservoirs. The measurements of the cavities showed that as a rule the reservoirs with a larger dimension were located in the phelloderm, whereas the smallest ones in the xylem area. The secretory cavities located in the stems and leaves developed by schizogenesis, whereas the rhizome reservoirs were probably formed schizolisygenously. The cells lining the reservoirs formed a one - four-layered epithelium. Observed in TEM, the secretory cells of the mature cavities located in the rhizomes were characterised by the presence of a large central vacuole, whereas the protoplast was largely degraded. Fibrous elements of osmophilic secretion and numerous different coloured vesicles could be distinguished in it. The cell walls formed, from the side of the reservoir lumen, ingrowths into the interior of the epithelial cells. Between the cell wall and the plasmalemma of the glandular cells, a brighter periplasmatic zone with secretory vesicles was observed.
Celem pracy było zbadanie struktury i topografii endogennych tkanek wydzielniczych Inula helenium L. Wykorzystując mikroskopię świetlną i elektronową przeprowadzano obserwacje morfologiczno-anatomiczne łodyg, liści i kłączy. Wykazano, że w łodygach zbiorniki wydzielnicze usytuowane były w sąsiedztwie wiązek łyko-drzewnych. Liczebność rezerwuarów osiągała maksimum (34) w fazie przekwitania pędów, zaś zbiorniki o największej średnicy obserwowano podczas pełni kwitnienia (44,6 µm). W ogonkach i nerwach głównych liści rezerwuary towarzyszyły również wiązkom przewodzącym a ich liczba i średnica wzrastała wraz z rozwojem organów asymilacyjnych. Obserwacje przekrojów poprzecznych kłączy ujawniły obecność kilku pierścieni rezerwuarów wydzielniczych. Pomiary zbiorników pokazały, że z reguły rezerwuary o największej średnicy zlokalizowane były w felodermie, najmniejsze zaś na obszarze ksylemu. Zbiorniki wydzielnicze usytuowane w łodygach i liściach powstawały na drodze schizogenezy, rezerwuary kłączowe zaś prawdopodobnie formowały się schizolizygenicznie. Komórki wyścielające rezerwuary tworzyły 1-4-warstwowy epitel. Oglądane w TEM komórki wydzielnicze dojrzałych zbiorników zlokalizowanych w kłączach, cechowały się obecnością dużej centralnej wakuoli, protoplast zaś był w znacznym stopniu zdegradowany. Można było wyróżnić w nim fibrylarne elementy osmofilnej wydzieliny oraz liczne, różnobarwne pęcherzyki. Ściany komórkowe tworzyły od strony luki ekskretów wpuklenia do wnętrza komórek epitelialnych. Pomiędzy ścianą komórkową a plazmolemą komórek gruczołowych obserwowano jaśniejszą strefę peryplazmatyczną z pęcherzykami wydzielniczymi.
Źródło:
Acta Agrobotanica; 2007, 60, 1
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Particulate matter accumulation – further differences between native Prunus padus and non-native P. serotina
Autorzy:
Popek, Robert
Łukowski, Adrian
Karolewksi, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/956823.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
particle deposition
pm
shrubs
black cherry
bird cherry
leaf morphology
Opis:
Particulate matter (PM) is one of the most harmful inhaled pollutants. Where pollutants have been emitted into the atmosphere, the most effective method for cleaning the air is through phytoremediation, whereby plants act as biological filters. PM has a negative impact on plants, but knowledge of PM effects on the photosynthetic apparatus is limited. In European forests, species of the genus Prunus L. play a key role in the composition of the forest understory and urban as well as industrial plantings. Shrubs of the native P. padus L. and closely-related invasive alien P. serotina Ehrh. are particularly widespread. Thus, both are good model species in which to study the impact of PM pollution. The aim of this study was to assess the accumulation of PM in the context of leaf morphology and amount of epicuticular waxes on foliage, and the efficiency of the photosynthetic apparatus of P. padus and P. serotina. The study was conducted under controlled conditions using two variants of dust, cement and roadside PM. In addition, we analyzed the absorption of dust by leaves dividing it into three fractions by size (10−100 μm, 2.5−10 μm and 0.2−2.5 μm). Results showed that both P. padus and P. serotina accumulate PM mostly on the surface of their leaves (SPM), rather than in the wax layer (WPM). P. padus accumulated higher amounts of PM than did P. serotina. The higher presence of PM on leaves of P. padus resulted in a reduction of the efficiency of the photosynthetic apparatus, manifested by lower rates of photosynthesis and chlorophyll a fluorescence, coinciding with an increased stomatal resistance. A strong negative correlation was found between the amount of PM accumulation and the efficiency of the photosynthetic apparatus in P. padus, but not in P. serotina. We have concluded that alien P. serotina is more tolerant to the conditions of stress caused by PM pollution than is the native P. padus, which may partly explain its success in the invasion in Europe.
Źródło:
Dendrobiology; 2017, 78; 85-95
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological characteristics of Vaccinium xintermedium Ruthe
Autorzy:
Ponikierska, A
Gugnacka-Fiedor, W.
Piwczynski, M.
Powiązania:
https://bibliotekanauki.pl/articles/41287.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Vaccinium myrtillus
Vaccinium vitis-idaea
hybrid
Vaccinium x intermedium
plant morphology
Polish population
hybridization
leaf
flower
morphology
taxonomy
Opis:
Vaccinium ×intermedium Ruthe, the hybrid of V. myrtillus and V. vitis-idaea, by contrast with the parental species is very rare plant and has a discontinuous geographical range in north-western Europe. This paper describes the morphology of V. ×intermedium from Polish populations occurring in part of Pomeranian Lakeland in comparison with both parent species. The results presented here confirm the suggestions of earlier research that V. ×intermedium displays intermediate characteristics of leaf and floral morphology concordant with hybrid status. Also, is discussed the problem of the isolating mechanisms between parent species and hybrid's ecology.
Źródło:
Dendrobiology; 2004, 51; 59-65
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
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:
Variability of leaf morphology from generative and vegetative shoots of Rubus capitulatus and R. kuleszae (Corylifolii section, Rosaceae)
Autorzy:
Kluza-Wieloch, M.
Maciejewska-Rutkowska, I.
Gawron-Gzella, A.
Dudek-Makuch, M.
Drapikowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/878484.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
leaf morphology
plant morphology
variability
generative shoot
vegetative shoot
Rubus capitulatus
Rubus kuleszae
Corylifolii section
Rosaceae
bramble
leaf
statistical method
Opis:
Leaves from generative and vegetative shoots of Rubus capitulatus and R. kuleszae of Corylifolii section were investigated. The study was to demonstrate the variability of leaves of both types of shoots, and at the same time an examination on the contents of polyphenols and phenolic acids in their blades carried out. Selected blade traits, such as was: length, width, elongation, perimeter, dissection index, area, rectangularity and circularity were measured using computer program and statistically analysed. Additionally, fresh and dry leaves were weighed and the percentage of preserved mass of particular samples was calculated. A statistical analysis revealed the area to be the most variable feature in both species and both types of shoots. Leaves from vegetative shoots were the most similar to each other and the length, width, perimeter and area were the most strongly correlated traits to each other. The leaves of generative shoots of both species contained less water than the leaves of vegetative ones.
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative leaf morphology and anatomy of some neotropical Philodendron Schott (Araceae) species
Autorzy:
Klimko, M.
Wawrzynska, M.
Wiland-Szymanska, J.
Powiązania:
https://bibliotekanauki.pl/articles/790571.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
plant species
leaf
plant morphology
plant anatomy
neotropical species
Philodendron
Araceae
Opis:
A comparative morphological and anatomical study on the petioles and lamina of 22 taxa (species, subspecies and cultivars) of the genus Philodendron (subgenera Meconostigma, Pteromischum and Philodendron) has been made in order to investigate interspecific differences which may be useful in species identification. All species have bifacial leaves with petioles, amphistomatic with a strongly reduced density of stomata on the adaxial leaf surface. The species differ in the size and shape of their epidermal cells, the distribution and types of stomata and cuticle ornamentation in the lamina, thickness of epicuticular layer, presence or absence of hypodermis, structure of spongy mesophyll, thickness of palisade and spongy mesophyll layers, as well as types of raphides, and in the structure and forms of petioles. A combination of these characters may be useful in species identification. This study shows that there is some variation in petiole and leaf morphological and anatomical characters among the 22 taxa of Philodendron. However, many characters are present in all of them and may be typical of the genus. The study revealed several detailed interesting epidermal and anatomical features that have not previously been reported in the genus.
Źródło:
Steciana; 2014, 18, 3
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative morphology and anatomy of the leaves of Ginkgo biloba L. cultivars
Porównawcza morfologia i anatomia liści odmian Ginkgo biloba L.
Autorzy:
Klimko, M.
Korszun, S.
Bykowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/11543003.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
comparative morphology
plant anatomy
leaf
Ginkgo biloba
plant cultivar
SEM analysis
Opis:
The article presents the results of research on the morphology and anatomy of the leaves of 21 cultivars (including 10 Polish cultivars) and two clones of Ginkgo biloba. Leaves from long shoots were collected at the Department of Dendrology and Nursery, Poznań University of Life Sciences, Poland. A light microscope and scanning electron microscope were used for observations. Eight morphological traits were analysed in the leaves, including the lamina and petiole. The research revealed that there were significant differences between the leaves of individual cultivars and that they differed in the length, width of the lamina and the length of petioles to a much greater extent than publications had described it so far. There were significant differences between the adaxial and abaxial epidermis of all the taxa, i.e. in the cuticle ornamentation, in the protrusive secondary sculpture (absence of papillae), the position and presence of stomata (occasionally on the adaxial leaf surface), the absence of the peristomatal ring and the thickness of the epidermis. Anatomical investigations revealed that the leaves of Ginkgo cultivars and clones under study were bifacial and the multi-layered mesophyll was diversified into spongy and palisade parenchyma. The research findings may be used for the identification of Ginkgo biloba cultivars, and the epicuticular traits may be useful for the identification and classification of fragments of fossil leaves. The article includes descriptions and illustrations of several new quantitative and qualitative characters of petiole and lamina which have not been published previously.
W pracy przedstawiono wyniki badań nad morfologią i anatomią liści 21 odmian (w tym 10 polskiej hodowli) oraz dwóch klonów Ginkgo biloba. Liście z długopędów pochodziły z kolekcji Katedry Dendrologii i Szkółkarstwa Uniwersytetu Przyrodniczego w Poznaniu. Obserwacje prowadzono przy użyciu mikroskopu świetlnego i skaningowego. Liście analizowano pod względem 8 cech morfologicznych, uwzględniając blaszkę liściową i ogonek liściowy. Na podstawie tych badań stwierdzono, że liście poszczególnych odmian różnią się istotnie między sobą i wykazują większe zróżnicowanie w długości, szerokości blaszki liściowej i w długości ogonków niż dotychczas opisywano w literaturze. Cechy epidermy górnej i dolnej wszystkich taksonów różnią się istotnie, m.in. ornamentacją kutykuli, brakiem brodawek, położeniem i występowaniem szparek (sporadycznie na górnej powierzchni liścia), brakiem pierścienia wokółszparkowego i grubością epidermy. Na podstawie badań anatomicznych stwierdzono, że liście odmian i klonów miłorzębu są bifacjalne oraz mają zróżnicowany miękisz zieleniowy na palisadowy i gąbczasty. Prezentowane wyniki badań zmienności cech morfologicznych i anatomicznych mogą być wykorzystane w identyfikacji odmian G. biloba, a cechy epikutikularne przydatne w identyfikacji i klasyfikacji fragmentów liści kopalnych. Kilka cech opisanych i zilustrowanych w pracy jest nowych, dotychczas niepodawanych w literaturze.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2015, 14, 4; 169-189
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The variability of Morus alba L. (Moraceae) leaves in the green areas of Poznan
Autorzy:
Kachel, M.
Nowinska, R.
Klimko, M.
Powiązania:
https://bibliotekanauki.pl/articles/790603.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
variability
Morus alba
Moraceae
leaf
morphology
white mulberry
petiole
blade
fruit
taxonomy
green area
Poznan city
Opis:
The paper presents the results of a biometrical study on the leaves of vegetative and generative shoots of Morus alba. Mature leaves were collected from the green areas of Poznań (Poland) city. Leaves from vegetative shoots were collected from 34 sites. Leaves from generative shoots were collected from specimens with blackish purple or purple fruit (13 trees) and with pale yellow to creamy fruit (21 trees). Eleven morphological traits were analysed in the leaves from vegetative and generative shoots, including the petiole and blade. The seven examined features were characterised by low or moderate variability and four features were characterised by high or very high variability. The research revealed slight differences between trees with blackish purple or pale yellow fruit and significant morphological differences between the leaves of vegetative and generative shoots. The article includes descriptions of quantitative features have not been published in Poland. White mulberry leaves (Morus alba) with white and dark fruit did not make clearly separated groups. Therefore, they should be treated as morphotype of cultivars rather than a distinct taxonomic rank.
Źródło:
Steciana; 2017, 21, 1
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The occurrence of Septoria tritici and its teleomorph Mycosphaerella graminicola in the Region of Upper Silesia in 1996
Autorzy:
Glazek, M
Sikora, H.
Powiązania:
https://bibliotekanauki.pl/articles/66312.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Upper Silesian region
plant disease
Septoria tritici
wheat
Polska
morphology
occurrence
leaf
winter wheat
Mycosphaerella graminicola
Opis:
The occurrence of leaf blotch of wheat caused by Septoria tritici (teleomorph Mycosphaerella graminicola) was more frequent in 1996 in the Upper Silesia region, south-western Poland, than in previous years. Visual scoring and serological tests proved the most rapid development of the disease from the emergence of flag leaf (GS 49) onwards. At the end of dough ripe stage (GS 85) on necrotic spots appearing on leaves the teleomorph of the fungus was stated, although asci were not fully mature. After a period of storage, on the necrotic tissue with pseudothecia, placed on water agar-streptomycin and subjected to low temperatures for 2-3 weeks, mature asci and germinating ascospores forming single conidia on ramifying mycelium were abundant.
Występowanie plamistości liści powodowanych przez Septoria tritici (teleomorf Mycosphaerella graminicola) było częściej spotykane w 1996 roku niż w latach poprzednich w Rejonie Górnego Śląska. Wizualne oceny i test serologiczny wykazały najszybszy rozwój choroby od fazy rozwiniętego liścia flagowego (GS 49) i później. W końcu fazy dojrzałości ciastowatej pszenicy (GS 85) na znekrotyzowanych plamach stwierdzono teleomorf grzyba Septoria tritici, jednakże worki nie były w pełni dojrzałe. Po okresie przechowywania znekrotyzowane tkanki z pseudotecjami umieszczano na wodnym agarze ze streptomycyną i poddawano niskiej temperaturze przez 2-3 tygodnie. Obserwowano liczne dojrzałe worki i kiełkujące askospory formujące pojedyncze konidia na rozgałęzionej grzybni.
Źródło:
Journal of Plant Protection Research; 1998, 38, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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