نتایج جستجو برای: exine

تعداد نتایج: 341  

2015
Pritha Bhattacharya Jiban K. Pal

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)...

2015
Malgorzata Gutkowska Marta Wnuk Julita Nowakowska Malgorzata Lichocka Michal M. Stronkowski Ewa Swiezewska

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...

Journal: :Quaternary 2022

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...

1999
Gregory M. Zinkl Benjamin I. Zwiebel David G. Grier Daphne Preuss

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...

Journal: :Erzincan University Journal of Science and Technology 2022

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...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید