Reproduction Multitasking: The Male Gametophyte
Annual Review of Plant Biology, 2021 The gametophyte represents the sexual phase in the alternation of generations in plants; the other, nonsexual phase is the sporophyte. Here, we review the evolutionary origins of the male gametophyte among land plants and, in particular, its ontogenesis in flowering plants.
Said Hafidh, David Honys
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Male gametophyte development: a molecular perspective [PDF]
Journal of Experimental Botany, 2009 Pollen grains represent the highly reduced haploid male gametophyte generation in flowering plants, consisting of just two or three cells when released from the anthers. Their role is to deliver twin sperm cells to the embryo sac to undergo fusion with the egg and central cell. This double fertilization event along with the functional specialization of
Michael Borg +2 more
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Chromatin remodelling during male gametophyte development [PDF]
Plant Journal, 2015 SummaryThe plant life cycle alternates between a diploid sporophytic phase and haploid gametophytic phase, with the latter giving rise to the gametes. Male gametophyte development encompasses two mitotic divisions that results in a simple three‐celled structure knows as the pollen grain, in which two sperm cells are encased within a larger vegetative ...
Michael Borg
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Rapid toxicity assessment of six antifouling booster biocides using a microplate-based chlorophyll fluorescence in Undaria pinnatifida gametophytes [PDF]
, 2020 Biocides of antifouling agents can cause problems in marine ecosystems by damaging to non-target algal species. Aquatic bioassays are important means of assessing the quality of water containing mixtures of contaminants and of providing a safety standard
Choi, Soyeon +4 more
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Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]
, 2009 Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified.
Willemse, M.T.M.
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Male Gametophyte Development. [PDF]
The Plant Cell, 1993 Pollen development offers the opportunity to study cell fate, cell patterning, cell polarity, and cell signaling-in this sense, pollen development can serve as a microcosm for all the in- teresting questions facing plant biologists today. The events that culminate in the formation and release of the pollen grain from the plant begin with meiosis and ...
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The MED30 subunit of mediator complex is essential for early plant development and promotes flowering in arabidopsis thaliana [PDF]
, 2019 Mediator is a large multiprotein complex that is required for the transcription of most, if not all, genes transcribed by RNA Polymerase II. A core set of subunits is essential to assemble a functional Mediator in vitro and, therefore, the corresponding ...
Arellano, Sofía Maité +10 more
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GAP activity, but not subcellular targeting, is required for Arabidopsis RanGAP cellular and developmental functions [PDF]
, 2015 The Ran GTPase activating protein (RanGAP) is important to Ran signaling involved in nucleocytoplasmic transport, spindle organization, and postmitotic nuclear assembly.
Boruc, Joanna +6 more
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Evidence for a role of Arabidopsis CDT1 proteins in gametophyte development and maintenance of genome integrity [PDF]
, 2012 Meristems retain the ability to divide throughout the life cycle of plants, which can last for over 1000 years in some species. Furthermore, the germline is not laid down early during embryogenesis but originates from the meristematic cells relatively ...
Benhamed, Moussa +8 more
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Control of Male Gametophyte Development [PDF]
THE PLANT CELL ONLINE, 2004 In a previous review of male gametophyte development ([McCormick, 1993][1]), it was noted that the two areas posed by [Mascarenhas (1975)][2] as fruitful areas for future research were the following.
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