Results 81 to 90 of about 13,086 (189)

Associated bacteria affect sexual reproduction by altering gene expression and metabolic processes in a biofilm inhabiting diatom [PDF]

open access: yes, 2019
Diatoms are unicellular algae with a fundamental role in global biogeochemical cycles as major primary producers at the base of aquatic food webs. In recent years, chemical communication between diatoms and associated bacteria has emerged as a key factor
Bilcke, Gust   +9 more
core   +2 more sources

Effects of salinity on pollen germination in wild and cultivated leguminous species

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca
Plant sexual reproduction plays a crucial role in species persistence, land colonisation, and the enhancement of genetic diversity. Sexual reproduction in plants encompasses several key processes, including gametogenesis, fertilisation, zygote ...
Diana-Maria MIRCEA   +5 more
doaj   +1 more source

A plant germline-specific integrator of sperm specification and cell cycle progression. [PDF]

open access: yesPLoS Genetics, 2009
The unique double fertilisation mechanism in flowering plants depends upon a pair of functional sperm cells. During male gametogenesis, each haploid microspore undergoes an asymmetric division to produce a large, non-germline vegetative cell and a single
Lynette Brownfield   +5 more
doaj   +1 more source

Comparative transcriptome analysis of obligately asexual and cyclically sexual rotifers reveals genes with putative functions in sexual reproduction, dormancy, and asexual egg production [PDF]

open access: yes, 2013
© The Author(s), 2013. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in BMC Genomics 14 (2013): 412, doi:10.1186/1471-2164-14-412.Sexual reproduction is a widely studied ...
Hanson, Sara J.   +3 more
core   +1 more source

Comprehensive analysis of tobacco pollen transcriptome unveils common pathways in polar cell expansion and underlying heterochronic shift during spermatogenesis [PDF]

open access: yes, 2012
Background Many flowering plants produce bicellular pollen. The two cells of the pollen grain are destined for separate fates in the male gametophyte, which provides a unique opportunity to study genetic interactions that govern guided single-cell polar ...
Said Hafidh   +5 more
core   +2 more sources

Analysis of the origin of parthenocarpy in grapevine cultivar Corinto Bianco [PDF]

open access: yes, 2017
Póster presentado en la 2nd Annual ConferenceFleshy Fruit Development & Ripening (COST Action FA1106 QualityFruit), celebrada en Chania (Grecia) del 22 al 25 de septiembre de 2013.Seedless fruits appear spontaneously in grapevine (Vitis vinifera L.) as a
Aroutiounian, R.   +7 more
core   +1 more source

Auxin-dependent cell cycle reactivation through transcriptional regulation of Arabidopsis E2Fa by lateral organ boundary proteins [PDF]

open access: yes, 2011
Multicellular organisms depend on cell production, cell fate specification, and correct patterning to shape their adult body. In plants, auxin plays a prominent role in the timely coordination of these different cellular processes. A well-studied example
Beeckman, Tom   +15 more
core   +2 more sources

T-loop phosphorylation of Arabidopsis CDKA;1 is required for its function and can be partially substituted by an aspartate residue [PDF]

open access: yes, 2007
As in other eukaryotes, progression through the cell cycle in plants is governed by cyclin-dependent kinases. Phosphorylation of a canonical Thr residue in the T-loop of the kinases is required for high enzyme activity in animals and yeast.
Dissmeyer, N.   +7 more
core   +2 more sources

Occurrence of parietal and invasive tapetum in Dyckia strehliana (Bromeliaceae): first report for the Family [PDF]

open access: yesRodriguésia
Tapetal tissue plays essential roles in the formation of generative cells, as it is related to their nutrition and development in anthers. Among the few species of Bromeliaceae for which tapetal tissue has been describe, most have a secretory tapetum and
Roberta Maidana da Silva   +1 more
doaj   +1 more source

Signalling of double strand breaks and deprotected telomeres in Arabidopsis.

open access: yesFrontiers in Plant Science, 2013
Failure to repair DNA double strand breaks (DSB) can lead to chromosomal rearrangements and eventually to cancer or cell death. Radiation and environmental pollutants induce DSB and this is of particular relevance to plants due to their sessile life ...
Simon eAmiard   +2 more
doaj   +1 more source

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