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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:
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:
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:
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:
Downregulation of chloroplast protease AtDeg5 leads to changes in chronological progression of ontogenetic stages, leaf morphology and chloroplast ultrastructure in Arabidopsis
Autorzy:
Baranek, M.
Wyka, T.P.
Jackowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/57852.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
chloroplast protease
AtDeg5 protease
chronological progression
ontogenetic stage
leaf morphology
chloroplast ultrastructure
Arabidopsis
starch grain
Opis:
The chloroplast protein AtDeg5 is a serine-type protease peripherally attached to thylakoid membrane at its lumenal side. Since reliable data regarding the role of AtDeg5 in controlling the course of growth and developmental processes are extremely limited, two independent T-DNA insertional lines with different extent of AtDeg5 reduction were prepared and ontogenesis stage-based analysis performed. Both mutant lines displayed a compensatory overaccumulation of AtDeg8. The repression of AtDeg5 protease altered a range of phenotypic features in at least one of the mutants, with the most prominent being changes in chronological progression of development and growth of individual rosette leaves, flower production and silique ripening as well as in the area of fully expanded leaves and chloroplast ultrastructure. By analyzing the results of parallel-mutant screening we conclude that AtDeg8 overdose may rescue 23% of AtDeg5 deficiency with regard to some AtDeg5-controlled traits; alternatively AtDeg5 may have catalytic sites in excess so that these traits might remain unaltered when AtDeg5 pool is reduced by 23%. For some other AtDeg5-dependent traits the absence of excessive amount of AtDeg5 catalytic sites, lack of AtDeg5 dosage effect and inability of AtDeg8 to compensate deficiency or absence of AtDeg5 occurred.
Źródło:
Acta Societatis Botanicorum Poloniae; 2015, 84, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
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:
Comparative studies of the leaf morphology and structure of white ash Fraxinus americana L. and London plane tree Platanus acerifolia Willd growing in polluted area
Autorzy:
Dineva, S B
Powiązania:
https://bibliotekanauki.pl/articles/41005.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
white ash
Fraxinus americana
London planetree
Platanus acerifolia
leaf
industrial area
industrial pollution
heavy polluted industrial area
air pollution
leaf morphology
leaf structure
leaf anatomy
environment pollution
Opis:
The leaf blades of white ash Fraxinus americana L. and London plane tree Platanus acerifolia Willd. growing in heavy polluted industrial areas were studied for morphological and anatomical changes developed under the influence of industrial contamination. The aim of the investigation was to determine and compare the influences of air polluted with SO2, NxOx, Pb, As, Zn, Cu etc. on the morphology and the structure of the leaves of these deciduous trees. Both species are tolerant to environmental changes but with different environmental characteristics and tolerances and they are widely used for planting. Under polluted conditions, the trees strengthened the anatomic xeromorphic characteristics of their leaf structures, which gave them the opportunity to mitigate the stressful conditions of the environment. The observed responses are regarded as adaptive and compensative to the adverse effects of air pollution.
Źródło:
Dendrobiology; 2004, 52; 3-8
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Leaf architecture, lignification, and tensile strength during vegetative phase change in Zea mays
Autorzy:
Balsamo, R A
Orkwiszewski, J.A.J.
Powiązania:
https://bibliotekanauki.pl/articles/59251.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
leaf morphology
lignification
tensile strength
vegetative phase
plant development
Zea mays
morphological change
physiological change
plant anatomy
histochemical analysis
Opis:
Background and Aims: Leaf morphology, anatomy, degree of lignification, and tensile strength were studied during vegetative phase change in an inbred line of Zea mays (OH43 x W23) to determine factors that influence mechanical properties during development. Methods: Tensometer, light microscopy, histochemistry. Key results: Mature leaf length increased linearly with plant development, peaked at leaves 7 and 8 (corresponding to the onset of the adult phase) and then declined. Leaf width was stable for leaves 1 through 3, increased to leaf 7, remained stable to leaf 10, and then declined through leaf 13. Lamina thickness was highest for leaf 1 and decreased throughout development. Leaf failure load to width ratio and failure load to thickness ratio increased with development suggesting that changes in leaf morphology during development do not entirely account for increases in failure load. Histochemical analyses revealed that leaf tensile strength correlates with percent lignification and the onset of anatomical adult features at various developmental stages. Conclusions: These data demonstrate that in Zea mays lignification of the midrib parenchyma and epidermis may be directly correlated with increased tensile strength associated with phase change from juvenility to adulthood. Failure load and resultant tensile strength values are primarily determined by the percent tissue lignification and the appearance of leaf architectural characters that are associated with the transition from the juvenile to the adult phase. Increased mechanical stability that occurs during the phase transition from juvenility to adulthood may signify a fundamental change in strategy for an individual plant from rapid growth (survival) to reproduction.
Źródło:
Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 181-188
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure of Kalanchoe pumila Bak. leaves (Crassulaceae DC.)
Struktura liści Kalanchoe pumila Bak. (Crassulaceae DC.)
Autorzy:
Chernetskyy, M.
Weryszko-Chmielewska, E.
Powiązania:
https://bibliotekanauki.pl/articles/27963.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
leaf structure
Kalanchoe pumila
leaf
Crassulaceae
plant morphology
plant anatomy
ultrastructure
Opis:
The structure of Kalanchoё pumila Bak. was studied with the use of stereoscopic, light, scanning and transmission electron microscopy. It was found that the chlorenchymatic tissue was divided into subepidermal small-celled mesophyll and large-celled (water transporting, CAM type) mesophyll, placed in the central part of the leaf. The mesophyll structure and its cell ultrastructure indicate C3 photosynthesis in this taxon, whereas CAM photosynthesis, being an adaptive syndrome, is induced by external factors. Three groups of xeromorphic traits were observed in the structure of K. pumila leaves, related to: 1) storing water in the ground and epidermal tissues, 2) decreased transpiration (the closing of stomata during heat), 3) avoiding excess insolation of the mesophyll and overheating of the leaf (striated cuticula, anthocyan pigments, tannin storage). The last two groups of xeromorphic traits also include thickening of the outer walls of cuticular cells, a thick-layered cuticula, and the presence of epicuticular wax and calcium carbonate deposits. Microchannels which enhance transpiration effi ciency in developing K. pumila leaves were found in the vicinity of anticlinal walls in the outer walls of epidermal cells. Calcium deposits produced on the leaf surfaces protect them in extreme conditions. Adaptive traits in the structure of K. pumila leaves are conservative and they confi rm the relations between this taxon and the conditions in their native land.
Przy zastosowaniu mikroskopii stereoskopowej, świetlnej oraz skaningowej i transmisyjnej elektronowej badano strukturę liści Kalanchoё pumila Bak. Stwierdzono, że tkanka chlorenchymatyczna w liściach jest podzielona na mezofi l drobnokomórkowy subepidermalny oraz mezofi l wielkokomórkowy (wodonośny, typu CAM) położony w środkowej części liścia. Budowa mezofi lu i ultrastruktura jego komórek wskazuje na C3 typ fotosyntezy u tego taksonu, a fotosynteza typu CAM, jako syndrom przystosowawczy, indukowana jest czynnikami zewnętrznymi. W strukturze liści K. pumila zaobserwowano trzy grupy cech kseromorfi cznych związanych z: 1) magazynowaniem wody w tkance miękiszowej i epidermalnej, 2) obniżeniem transpiracji (zamknięcie aparatów szparkowych w czasie upału), 3) ze zmniejszeniem nasłonecznienia mezofi lu i przegrzewania liścia (prążkowana kutykula, występowanie barwników antocyjanowych, gromadzenie substancji garbnikowych). Dwie ostatnie grupy cech kseromorfi cznych obejmują ponadto: zgrubienie zewnętrznej ściany komórek skórki, grubowarstwową kutykulę, występowanie wosku epikutykularnego oraz złogów węglanu wapnia. W sąsiedztwie ścian antyklinalnych w zewnętrznych ścianach komórek epidermy wykazano obecność mikrokanalików, które niewątpliwie zwiększają zdolność wyparowania wody w rozwijających się liściach roślin K. pumila w czasie wegetacji. Jednakże wyprodukowane na powierzchni liści osady wapienne chronią te organy w warunkach ekstremalnych. Cechy adaptacyjne występujące w strukturze liści K. pumila są konserwatywne i potwierdzają związek tego taksonu z warunkami występowania w ojczyźnie.
Źródło:
Acta Agrobotanica; 2008, 61, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
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:
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:
Morphological variability of leaves of Sorbus torminalis [L.] Crantz in Poland
Autorzy:
Bednorz, L
Powiązania:
https://bibliotekanauki.pl/articles/56763.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
morphological variability
leaf
Sorbus torminalis
plant morphology
statistical analysis
Polska
Opis:
This paper presents the results of the study on morphological variability of leaves of a scattered tree species Sorbus torminalis (L.) Crantz) in Poland. The leaves from short- and long shoots were collected from 17 localities widespread within the range of the species in Poland. Leaves were measured according to 15 morphological traits. The biometric data were subjected to multivariate statistical analysis in attempt to define variability between local populations. Most of the leaf traits are significantly correlated and are characterised by moderate level of variation. The average among population component of variation was 32.82% and 27.46% for leaves on short- and long shoots, respectively. The differences between sampled populations are significant, but only a weak geographical pattern of this differentiation was detected. Clinal type of variation was ascertained in two traits. Leaf traits which discriminate best the studied populations are also indicated. It was proved that leaves on short shoots differ markedly in shape and size from those of long shoots. Leaves on long shoots are steadier, but morphological trait values are less correlated. The study also confirmed the occurrence of individuals with leaves characteristic for S. torminalis var. perincisa Borbas et Feck and S. torminalis f. mollis Beck in a few Polish populations.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 3; 233-243
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
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:
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:
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
Wyświetlanie 1-15 z 21

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