Results 61 to 70 of about 26,188 (195)
The cell wall of the pollen mother cell at the tetrad stage in Convallaria majalis L.
The cell wall at the tetrad stage in Convallaria majalis L. has been studied by light microscope histochemical techniques. The standard PAS reaction has shown the persistence of the primary pecto-cellulosic pollen mother cell wall localized around the ...
Maria Charzyńska, Iwona Pannenko
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Chemical Analysis of Pollen by FT-Raman and FTIR Spectroscopies
Pollen studies are important for the assessment of present and past environment, including biodiversity, sexual reproduction of plants and plant-pollinator interactions, monitoring of aeroallergens, and impact of climate and pollution on wild communities
Adriana Kenđel +2 more
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Microsporogenesis and pollen formation in cassava
This article describes the complete microsporogenesis and pollen formation in cassava (Manihot esculenta Crantz) at the various developmental stages (pollen mother cell, meiosis, tetrads, early free spore, mid uninucleate, late uninucleate, binucleate ...
C. SAUTTER +9 more
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Pollen wall formation in Abies concolor and a discussion on wall layer homologies
Development of the pollen wall in Abies concolor (Gord. & Glen.) Lindl. is documented using ultrastructural techniques. Pollen wall formation is initiated by the deposition of a microspore surface coat and the formation of callosic protrusions in ...
Marie H. Kurmann
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Biochemical and Immunocytological Characterizations of Arabidopsis Pollen Tube Cell Wall
International audienceDuring plant sexual reproduction, pollen germination and tube growth require development under tight spatial and temporal control for the proper delivery of the sperm cells to the ovules.
Flavien Dardelle +13 more
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Visualization study on uptake and distribution of Pdots in Arabidopsis thaliana pollen
Pollen-mediated genetic transformation enables gene editing and trait improvement with stable inheritance to offspring, demonstrating significant application prospects in crop genetic breeding.
LIU Jiantao +3 more
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Proper growth of the pollen tube depends on an elaborate mechanism that integrates several molecular and cytological sub-processes and ensures a cell shape adapted to the transport of gametes.
Iris Aloisi +5 more
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The influence of three different pollen germination media on the transcript profile of Arabidopsis pollen tubes has been assessed by real-time PCR on a selection of cell wall related genes, and by a statistical analysis of microarray Arabidopsis pollen ...
Mário Luís da Costa +2 more
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Based on the anther transcriptome data, the regulatory patterns of pollen wall-related genes during anther development in Arabidopsis thalianatek/ms188 mutant were analyzed.
SU Wenxin +4 more
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Pollen Walls as Adaptive Systems
The structural variation of angiosperm pollen is primarily related to the wall, for the male gametophyte itself is simple in organization and more or less uniform in character throughout the group. The division of the wall into an outer exine and an inner intine is clearly a fundamental feature, as it is in the pollen grains and spores of other ...
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