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Wyszukujesz frazę "seed morphology" wg kryterium: Wszystkie pola


Tytuł:
Fruit and seed morphology of the genus Heracleum L. (Apiaceae) in Poland
Autorzy:
Klimko, M.
Truchan, M.
Wysakowska, I.
Powiązania:
https://bibliotekanauki.pl/articles/878295.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
fruit morphology
seed morphology
trichome
morphology
Heracleum
Heracleum sosnowskyi
Heracleum mantegazzianum
Heracleum sphondylium
Apiaceae
Polska
Opis:
The paper presents the results of a study on mericarps and seed morphology of four taxa occurring in Poland: Heracleum sphondylium subsp. sphondylium and subsp. sibiricum, H. mantegazzianum and H. sosnowskyi. Apart from selected biometric traits we analysed pericarps and seed-coat patterns using a stereoscopic microscope (SM) and a scanning microscope (SEM). Considerable diff erences in the dorsal surface of mericarps were observed, but major structural similarities were found on the ventral surface of mericarps. Pericarp surface diff ers signifi cantly between native and alien taxa in terms of secondary sculpture. The examined seeds were characterised by reticulate primary sculpture with diff erent size and shape of testa cells. The macro- and micromorphological characteristics of the mericarp and seeds may provide valuable additional diagnostic criteria for delimitation of Heracleum and can be used in the identifi cation of fruits and seeds.
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:
Variation of seed morphology of Trollius europaeus L. and Trollius altissimus Crantz [Ranunculaceae]
Autorzy:
Antkowiak, W
Maciejewska-Rutkowska, I.
Jagodzinski, A.M.
Kayzer, D.
Klimko, M.
Powiązania:
https://bibliotekanauki.pl/articles/57408.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
variation
seed
morphology
Trollius europaeus
Trollius altissimus
Ranunculaceae
Opis:
The aim of this study was to investigate seed morphology and intra- and inter-population variation of seeds of Trollius europaeus L. and Trollius altissimus Crantz., two controversial species regarding their taxonomical position. We analyzed seed-coat microsculpture and some biometrical traits (length and width, width/length ratio, volume and projected perimeter). Seed sculpture did not differ between species, but seeds of T. altissimus were usually larger than seeds of T. europaeus. Although species differed significantly in seed morphology, it was possible to show the populations of both species that were similar regarding the analyzed seed traits. We noted a significant inter-population differentiation of seeds in both species with respect to seed-coat microornamentation and biometrical traits. We conclude that T. europaeus and T. altissimus are probably not two distinct species, but T. europaeus should be divided into two lower taxa in the rank of variety or subspecies.
Źródło:
Acta Societatis Botanicorum Poloniae; 2010, 79, 2; 117-123
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geographic variation of Pinus heldreichii Christ from the Western Balkans based on cone and seed morphology
Autorzy:
Hodžić, M.M.
Hajrudinović-Bogunić, A.
Bogunić, F.
Marku, V.
Ballian, D.
Powiązania:
https://bibliotekanauki.pl/articles/2078154.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Bosnian pine
Dinaric Alps
Scardo-Pindic massif
morphometry
population differentiation
Opis:
Pinus heldreichii (Bosnian pine) is a Balkan-Apennine endemic and relict pine species that inhabits high mountains in the Mediterranean and sub-Mediterranean regions. Nineteen populations of P. heldreichii from the Western Balkans encompassing 187 individual trees were examined to evaluate morphological variation, a rarely studied aspect of the species. Univariate and multivariate statistics were applied in order to assess the variation of morphological traits of cones and seeds, evaluate the relationships among the sampled populations and verify geographic differentiation in the Dinaric Alps versus Scardo-Pindic mountains. The observations of P. heldreichii covering the populations from the western margins and the centre of the species distribution range indicated a morphological variation among populations and their geographic structure. In general, the southern populations (Scardo-Pindic group) had lower values for the most of morphological traits than the northern ones (Dinaric group). The observed geographic differences between these populations exhibit a north-western to south-eastern gradient, with a few inconsistencies. The southernmost sampled population, Tomorr in Albania, showed remarkable morphological divergence from the other studied populations and appeared to be a distinct morphological group. The pattern of morphological variation in Bosnian pine most likely resulted from multiple effects of long-term isolation and fragmentation in high mountain systems, adaptation to extreme environments and human disturbances.
Źródło:
Dendrobiology; 2020, 84; 81-93
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed morphology and testa sculptures of some Allium L. species (Alliaceae)
Morfologia i skulptura powierzchni nasion wybranych gatunków rodzaju Allium L. (Alliaceae)
Autorzy:
Bednorz, L.
Krzyminska, A.
Czarna, A.
Powiązania:
https://bibliotekanauki.pl/articles/27233.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant species
Allium pyrenaicum
Allium rotundum
Allium sphaerocephalon
Allium vineale
Allium moly
Allium karataviense
Allium fistulosum
Allium nutans
Alliaceae
seed
seed morphology
testa sculpture
taxonomy
Opis:
The paper presents the results of the study on seed morphology of eight following Allium species: A. pyrenaicum Costa & Vayr., A. rotundum L., A. sphaerocephalon L., A. vineale L., A. moly L., A. karataviense Regel, A. fistulosum L. and A. nutans L. The study confirmed the substantial diversity in testa characters, especially curvature and relief of anticlinal walls as well as microsculpture of outer periclinal walls. The occurrence of raised anticlinal walls – an unusually rare feature in Allium seeds, previously observed only in a few species, was found in A. karataviense. It was also found that the testa type in A. pyrenaicum did not match the typical character combination, described before for subg. Allium sect. Allium.
W pracy przedstawiono wyniki badań nad morfologią nasion ośmiu następujących gatunków rodzaju Allium: A. pyrenaicum Costa & Vayr., A. rotundum L., A. sphaerocephalon L., A. vineale L., A. moly L., A. karataviense Regel, A. fistulosum L. i A. nutans L. Obserwacje wykonano z zastosowaniem elektronowego mikroskopu skaningowego (SEM) oraz mikroskopu stereoskopowego. Przeprowadzone badania potwierdziły znaczne zróżnicowanie cech powierzchni nasion czosnków, a w szczególności przebiegu i reliefu ścian antyklinalnych oraz mikro-urzeźbienia zewnętrznych ścian peryklinalnych komórek testy. U A. karataviense stwierdzono występowanie wypukłych ścian antyklinalnych komórek testy – cechy niezwykle rzadko spotykanej u czosnków, wcześniej zaobserwowanej zaledwie u kilku gatunków. Stwierdzono również, że typ skulptury nasion A. pyrenaicum nie odpowiada typowej kombinacji cech komórek testy, opisanej wcześniej u innych gatunków podrodzaju Allium sekcji Allium.
Źródło:
Acta Agrobotanica; 2011, 64, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seed plant characteristics of monogerm and multigerm red beet
Autorzy:
Jagosz, B.
Powiązania:
https://bibliotekanauki.pl/articles/61022.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
seed morphology
germination
hybrid
seed production
red beet
Beta vulgaris
breeding line
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2015, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SEM observations of pollen grains, fruits and seeds of the Pieniny Mountains [South Poland] endemic species Erysimum pieninicum [Zapal.] Pawl. [Brassicaceae]
Autorzy:
Maciejewska-Rutkowska, I
Bednorz, L.
Fujiki, T.
Powiązania:
https://bibliotekanauki.pl/articles/58978.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
electron microscope
Erysimum pieninicum
fruit morphology
Polska
seed morphology
botany
pollen morphology
Brassicaceae
Pieniny Mountains
forest
endemic species
Opis:
Erysimum pieninicum (Zapał.) Pawł. (Brassicaceae) is an endemic species, growing only in Pieniny Mts. The aim of the presented work was to investigate its pollen morphology as well as its ultrastructural traits of pericarp and seed-coat. Pollen grains of this species were of small size, 3-zonocolpate with reticulate ornamentation. The external siliqua surface was of rugose sculpture, covered by numerous, stellate hairs. The internal surface of the fruit was naked and characterized by striate sculpture. The seed-coat ornamentation of E. pieninicum was of blister type.
Źródło:
Acta Societatis Botanicorum Poloniae; 2007, 76, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taraxacum scanicum Dahlst. group [section Erythrosperma] in Poland: chorology and seed and pollen morphology of the microspecies
Autorzy:
Marciniuk, J
Vasut, R.J.
Marciniuk, P.
Czarna, A.
Powiązania:
https://bibliotekanauki.pl/articles/57021.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
geographic distribution
Polska
morphology
pollen
seed
chorology
Taraxacum scanicum
dandelion
Opis:
The genus Taraxacum is taxonomically complicated due to apomixis. Therefore, there are significant differences in knowledge of regional Taraxacum-Floras among European countries. Similarly, some taxa are well characterised with well-known distribution, whereas some ones are known e.g. from a single locality. Taraxacum scanicum of section Erythrosperma is one of the most common microspecies of this section in Europe. Recently, this taxon was split into three microspecies. In this study we map the distribution of three described taxa of this group in Poland, i.e. T. scanicum s.s., T. prunicolor and T. cristatum. The survey showed that T. scanicum has a similar distribution as T. prunicolor in Poland. This is in contrast with the hitherto known distribution of both taxa. T. cristatum was found at a single locality that is quite distant from the distribution in southern central Europe. We also provide with new morphological characteristics of achenes and pollen for T. scanicum s.s. and T. prunicolor.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 2; 115-121
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some notes on the morphology and anatomy of seeds of two similar heathers, Erica carnea L. and Erica erigena R. Ross
Autorzy:
Szkudlarz, P
Powiązania:
https://bibliotekanauki.pl/articles/41127.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
morphology
anatomy
seed
heather
Erica carnea
Erica erigena
species identification
Erica herbacea zob.Erica carnea
Erica mediterranea zob.Erica erigena
seed coat
epidermal cell
Opis:
This paper presents the results of comparative studies on seed morphology and anatomy of two species: Erica carnea and E. erigena. SEM and LM micrographs are presented. The seeds differ in size and shape of epidermal cells of the seed coat, but they represent the same structural type, which is clearly dissimilar from that of the other European species of this genus.
Źródło:
Dendrobiology; 2008, 59; 51-55
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SEM and stereoscope microscope observations on the seeds of the Polish species of the genus Sorbus L. [Rosaceae]
Autorzy:
Maciejewska-Rutkowska, I
Bednorz, L.
Powiązania:
https://bibliotekanauki.pl/articles/57855.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Rosaceae
Sorbus
botany
morphology
stereoscope microscope
scanning microscope
seed
Opis:
This paper presents the results of the study on seed morphology of five Polish species of the genus Sorbus L. (S. aria (L.) Crantz, S. aucuparia L. Emend. Hedl., S. chamaemespilus (L.) Crantz, S. intermedia (Ehrh.) Pers. and S. torminalis (L.) Crantz). Observations and measurements were carried out with stereoscope and scanning microscopes. Four types of seed microsculpture were distinguished on the ground of SEM observations. The key to determine Polish species, based on morphological characters of seeds is given too.
Źródło:
Acta Societatis Botanicorum Poloniae; 2004, 73, 4
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł

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