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Seed coat sculpturing
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This study was carried out using light microscope (LM) and scanning electron microscopy (SEM). Pollen morphology of this genus is fairly uniform. Generally radially symmetrical apolar, mostly spheroidal, pantoporate.
7p
schindler
30-12-2021
8
0
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Aethionema aytachii Ertuğrul & Hamzaoğlu, a new species from central Anatolia that grows on marly hills in the Ayaş district of Ankara Province (Turkey), is described and its relationships and distinguishing characters from the closest relative A. dumanii are discussed. The shape of pollen grains of A. aytachii is tricolpate, and its seed-coat sculpture is verrucate. Sequence data of the internal transcribed spacer region (ITS) of the new species was used to determine about its phylogenetic relation within Aethionema.
10p
langthannam
29-12-2021
6
0
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The ontogeny of seed coat and endosperm tissue in Zygophyllum fabago L. was studied to determine their developmental importance using different histochemical and microscopic techniques. Our results revealed that the ovule of Z. fabago was of the anatropous and bitegmic type. The inner epidermis cells were retained up to the end of seed development, whereas the other layers were removed in the early stages. Moreover, the outer integument was changed into the seed coat sculptures during the seed development. Concurrently, multiple cytoplasmic strings were formed at the seed coat cells.
11p
tudichquannguyet
29-11-2021
9
0
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Pollen and seed morphology were examined in 35 specimens representing 25 Turkish species of the taxonomically complex genus Hesperis L. by light and scanning electron microscopes. Three main types and 2 subtypes were recognized based on the seed coat surface, pollen shape, and exine sculpturing.
14p
vibasque27
27-03-2019
23
1
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The seeds of 32 specimens belonging to 15 species from 2 sections of the genus Epilobium L. (Onagraceae Juss.) were studied by both a light and scanning electron microscope (SEM). Seed morphology of the examined specimens exhibits some variation in shape and size. Seed size ranges between 0.97 mm and 2.2 mm in length.
6p
vibasque27
29-03-2019
11
0
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Trichomes, epidermal cell features, and seed coat sculpturing of 12 Lotus taxa from Egypt were studied using scanning electron microscopy. In addition, statistical analysis for the taxa under investigation was carried out. The results revealed that trichomes have high taxonomic significances between studied taxa.
16p
vikimsa
22-02-2019
17
1
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