Results 251 to 260 of about 14,840,475 (307)
Some of the next articles are maybe not open access.
Plant, Cell and Environment, 2020
The development of gametes in plants is acutely susceptible to heatwaves as brief as a few days, adversely affecting pollen maturation and reproductive success.
Farhad Masoomi-Aladizgeh +8 more
semanticscholar +1 more source
The development of gametes in plants is acutely susceptible to heatwaves as brief as a few days, adversely affecting pollen maturation and reproductive success.
Farhad Masoomi-Aladizgeh +8 more
semanticscholar +1 more source
2010
Pollen tubes grow rapidly in a strictly polarized manner as they transport male reproductive cells through female flower tissues to bring about fertilization. Vegetative pollen tube cells are an excellent model system to investigate processes underlying directional cell expansion.
Mark A, Johnson, Benedikt, Kost
openaire +2 more sources
Pollen tubes grow rapidly in a strictly polarized manner as they transport male reproductive cells through female flower tissues to bring about fertilization. Vegetative pollen tube cells are an excellent model system to investigate processes underlying directional cell expansion.
Mark A, Johnson, Benedikt, Kost
openaire +2 more sources
Proteomics of Pollen Development and Germination
Journal of Proteome Research, 2007In higher plants, pollen grains represent the vestiges of a highly reduced male gametophyte generation. After germination, the pollen tube delivers the sperm cells by tip-growing to the embryo sac for fertilization. Besides the intrinsic importance for sexual reproduction, pollen development and germination serve as an attractive system to address ...
Shaojun, Dai +3 more
openaire +2 more sources
Pollen wall development in flowering plants
New Phytologist, 2007SummaryThe outer pollen wall, or exine, is more structurally complex than any other plant cell wall, comprising several distinct layers, each with its own organizational pattern. Since elucidation of the basic events of pollen wall ontogeny using electron microscopy in the 1970s, knowledge of their developmental genetics has increased enormously ...
Stephen, Blackmore +3 more
openaire +2 more sources
Evolution of development of pollen performance
2019With the origin of pollination in ancient seed plants, the male gametophyte ("pollen") began to evolve a new and unique life history stage, the progamic phase, a post-pollination period in which pollen sexual maturation occurs in interaction with sporophyte-derived tissues.
Joseph H, Williams, John B, Reese
openaire +2 more sources
Pollen allergens: development and function
Sexual Plant Reproduction, 1996Pollen allergens interact with the human immune system and the resulting IgE antibodies provide specific probes for their identification and characterisation. In one case, grass allergenic proteins are expressed late in pollen development coincident with the laying down of reserves.
R. B. Knox, C. Suphioglu
openaire +1 more source
Gene Expression During Pollen Development
1992Because of allelic segregation at meiosis, post meiotic gene expression can result in considerable genetic variability in the pollen population even from single plants, and thus offers opportunities for selection among male gametophytes. Due to the haploid state and the large population size, male gametophytic selection (MGS) can be extremely efficient
C. Frova, M. E. Pè
openaire +1 more source
Pollen: Structure and Development
2011Pollen grains contain the highly reduced haploid microgametophyte generation in seed plants that establishes the male germline during sexual reproduction. Pollen protects the germline from environmental injury, promotes gamete dispersal and ensures delivery of a pair of sperm cells to the female gametes via the pollen tube.
Borg, M. ; https://orcid.org/0000-0002-3982-3843 +1 more
openaire +1 more source
Gene Activity During Pollen Development
Annual Review of Plant Physiology and Plant Molecular Biology, 1990INTRODUCTION . . . . . . . . 317 THE REGULATION AND EXPRESSION OF GENES IN THE DEVELOPING MALE GAMETOPHYTE 319 How Important is the Tapetum in Pollen Development?. . .... . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Is the Diff erentiation of the Male Gametophyte Dependent on Genes Transcribed Prior to Meiosis in the Sporophyte or Is ...
openaire +1 more source