Results 31 to 40 of about 220,475 (309)
, 2018 AbstractPollen is source and transport unit for the male gametes (or their progenitor cell). The unicellular pollen grain represents the microspore of seed plants, the multicellular pollen grain the male gametophytic generation. The development of a pollen grain includes microsporogenesis and microgametogenesis (Figs. 1 and 2, Gomez et al.
Halbritter, Heidemarie +8 more
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Male Meiosis as a Biomarker for Endo- to Ecodormancy Transition in Apricot
Frontiers in Plant Science, 2022 Dormancy is an adaptive strategy in plants to survive under unfavorable climatic conditions during winter. In temperate regions, most fruit trees need exposure to a certain period of low temperatures to overcome endodormancy.
Sara Herrera +9 more
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MADS-complexes regulate transcriptome dynamics during pollen maturation [PDF]
, 2007 Background: Differentiation processes are responsible for the diversity and functional specialization of the cell types that compose an organism. The outcome of these processes can be studied at molecular, physiologic, and biochemical levels by comparing
Verelst, Wim +5 more
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Annexin5 Is Essential for Pollen Development in Arabidopsis [PDF]
Molecular Plant, 2014 Pollen development is a post-meiotic process that produces mature pollen grains from microspores and can be regarded as an ideal model for the study of important plant physiological processes such as reproduction, cellular differentiation, cell fate determination, signal transduction, membrane transport, and fusion and polar growth.
Zhu, Jingen +9 more
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Frontiers in Plant Science, 2022 Male-sterile mutants are useful materials to study the anther and pollen development. Here, whole transcriptome sequencing was performed for inflorescences in three sterile lines of Chinese cabbage (Brassica campestris L. ssp. chinensis Makino, syn.
Dong Zhou +13 more
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Verhuellia is a segregate lineage in Piperaceae: more evidence from flower, fruit and pollen morphology, anatomy and development [PDF]
, 2010 Background and Aims The perianthless Piperales, i.e. Saururaceae and Piperaceae, have simple reduced flowers strikingly different from the other families of the order (e.g. Aristolochiaceae).
Samain, Marie-Stéphanie +7 more
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Toward in vitro fertilization in Brachiaria spp. [PDF]
, 2010 Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R. +5 more
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Pollen grain of barley (Hordeum vulgare L.) - pattern of development
Acta Societatis Botanicorum Poloniae, 2014 Pollen development in barley follows the general pattern established for other species of Poaceae: 1) microspore division occurs at the vacuolate microspore stage with polarly located nucleus; 2) microspore mitosis is immediately followed by phragmoplast
Maria Charzyńska, Nella Lenart
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RNA-seq analysis of synchronized developing pollen isolated from a single anther
Frontiers in Plant Science, 2023 Pollen development, from unicellular microspores to anthesis, is a complex process involving the coordinated specification, differentiation and functions of different cell types. Key to understanding this development is identifying the genes expressed at
Liam Le Lievre +6 more
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Pollen development of Rondeletia odorata (Rubiaceae) [PDF]
American Journal of Botany, 2001 Pollen wall ontogeny of Rondeletia odorata was studied with transmission electron microscopy (TEM) and scanning electron microscopy (SEM) from tetrad stage until maturity. The ontogenetic sequence of wall development in Rondeletia follows, to some extent, the basic scheme in the angiosperms, i.e., development starts centripetally with the pro ...
El-Ghazaly, G. +2 more
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