Results 71 to 80 of about 12,137 (232)

Gametophytic Self-Incompatibility Systems [PDF]

open access: yesThe Plant Cell, 1993
is one of the mechanisms that have evolved to encourage outbreeding in flowering plants and is defined as “the inability of a fertile hermaphrodite seed plant to produce zygotes after self-pollination” (de Nettancourt, 1977). The effectiveness of SI in promoting outbreeding is believed to be one of the most important factors that ensured the evolu ...
E., Newbigin   +2 more
openaire   +2 more sources

microRNA‐mediated control of cell fate specification and patterning in Marchantia polymorpha

open access: yesNew Phytologist, EarlyView.
The gemma developmental program in Marchantia polymorpha is coordinated by MpMIR166‐mediated repression of MpC3HDZ and auxin homeostasis. Summary MicroRNAs (miRNAs) are small non‐coding RNA molecules essential for growth and development in eukaryotes. In plants, the master gene DICER‐LIKE 1 (DCL1) catalyzes the biogenesis of miRNAs by processing double‐
Adolfo Aguilar‐Cruz   +17 more
wiley   +1 more source

Conservação de esporos, germinação e desenvolvimento gametofítico de Pleopeltis lepidopteris: análises morfofisiológicas e ultraestruturais [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Florianópolis, 2015.Pleopeltis lepidopteris (Langsd.
Filipin, Elisa Poltronieri
core  

Transcript correlation analysis for the identification of novel plant genes involved in iron metabolism and beyond: what next?

open access: yesPlant Biology, EarlyView.
Transcript correlation analysis allowed the identification of several key nodes in the complex regulatory network of plant iron metabolism. Abstract Arabidopsis thaliana was the first plant genome to be fully sequenced, almost a quarter of a century ago, thanks to The Arabidopsis Genome Initiative, with contributions from scientists worldwide.
I. Murgia, P. Morandini
wiley   +1 more source

The male gametophyte of angiosperms

open access: yes, 1949
This article deals almost entirely with the morphological and cytological features associated with the development and organization of the male gametophyte.
Maheshwari, P., P. Maheshwari
core   +1 more source

A pellet‐based approach for moss biocrust inoculation: high establishment under laboratory conditions, challenges in the field

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Biological soil crusts (biocrusts) are key components of soil ecosystems and promising tools for ecological restoration. Mosses, as important biocrust constituents, contribute to ecosystem functioning but often fail to establish after inoculation due to harsh environmental constraints.
Mateus Fernandes Oliveira   +2 more
wiley   +1 more source

Origins of the kelp gametophyte clones used in this study.

open access: yes, 2015
*Asexual sporophyte, carrying both male and female sex chromosomes**Partheno-sporophyte derived from female gametophyte (through parthenogenetic development of unfertilized eggs)Origins of the kelp gametophyte clones used in this study.
Sylvain Faugeron (319116)   +5 more
core   +1 more source

Preliminary study documents variable accuracy and inclusion among biology instructor gender/sex definitions

open access: yesNatural Sciences Education, Volume 55, Issue 2, December 2026.
Abstract Society generally presents sex inaccurately as a binary variable based on one or few trait(s), causing myriad issues, including the pursuit of reductionist biology experiments, the creation of laws that limit the rights of women, people with queer genders, and intersex folks, and greater student endorsement of gender stereotypes in ...
Emily P. Driessen   +4 more
wiley   +1 more source

Life after meiosis: patterning the angiosperm male gametophyte

open access: yes, 2010
Pollen grains represent the highly reduced haploid male gametophyte generation in angiosperms. They play an essential role in plant fertility by generating and delivering twin sperm cells to the embryo sac to undergo double fertilization.
Twell, D., Borg, M. ; https://orcid.org/
core   +1 more source

Control of Male Gametophyte Development [PDF]

open access: yesTHE 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.
openaire   +2 more sources

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