نتایج جستجو برای: exine
تعداد نتایج: 341 فیلتر نتایج به سال:
The aim of the present investigation is to study different pollen parameters such as shape, size, colpa and exine ornamentation for the taxonomic assessment of the groups of plants. The pollen morphology of some plant taxa of the family Fabaceae growing in the area of Arambagh of Hooghly district, West Bengal, India were studied using light microscopy (LM) and scanning electron microscopy (SEM)...
Rab proteins, key players in vesicular transport in all eukaryotic cells, are post-translationally modified by lipid moieties. Two geranylgeranyl groups are attached to the Rab protein by the heterodimeric enzyme Rab geranylgeranyl transferase (RGT) αβ. Partial impairment in this enzyme activity in Arabidopsis, by disruption of the AtRGTB1 gene, is known to influence plant stature and disturb g...
Palynological and archaeobotanical analyses have been carried out as part of the interdisciplinary project Colombare di Negrar, a prehistoric site in Lessini Mountains (northern Italy). The palaeoenvironmental economic reconstruction from Late Neolithic to beginning Early Bronze Age was based on 16 pollen samples three macroremains taken two contiguous trenches. landscape shows presence natural...
Cell recognition plays a key role in biology: cells of the immune system can identify foreign invaders, targeted cell migrations are essential for animal development, and gametes bind in a species-specific manner. Here we characterized the nature of cell recognition at the earliest stage of Arabidopsis reproduction, namely the binding of pollen grains to female stigma cells. This interaction oc...
Alyssum strigosum Banks & Sol. subsp. and A. cedrorum (Schott Kotschy) Dudley, which are two subspecies of with their morphological, anatomical, palynological traits, were presented in detail this study. The anatomical analysis has been carried out using handmade sections. transverse sections roots showed that have similar characters as primer structure. stem reflected the typical dicotyled...
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