Results 1 to 10 of about 34,605 (165)

Embryo sac cellularization defects lead to supernumerary egg cells and twin embryos in Arabidopsis thaliana [PDF]

open access: yesiScience
Summary: Arabidopsis lines with loss-of-function mutation in Embryo sac-specific Pectin MethylEsterase Inhibitor (Atepmei) gene showed seed sterility with embryo sac cellularization defects.
Isha Sharma   +4 more
doaj   +2 more sources

A LysM Domain-Containing Gene OsEMSA1 Involved in Embryo sac Development in Rice (Oryza sativa L.) [PDF]

open access: yesFrontiers in Plant Science, 2017
The embryo sac plays a vital role in sexual reproduction of angiosperms. LysM domain containing proteins with multiple lysin motifs are widespread proteins and are involved in plant defense responses against fungal chitins and bacterial peptidoglycans ...
Qian Zhu   +11 more
doaj   +2 more sources

A bioengineering approach to guide non-integrated stem cell-derived embryo model towards yolk sac development and hematopoiesis [PDF]

open access: yesFrontiers in Cell and Developmental Biology
Combining stem cell-derived multi-tissue constructs, such as non-integrated embryo models, with bioengineering technologies provide scalable tools for tissue engineering and drug testing.
Vinidhra Shankar   +10 more
doaj   +2 more sources

Genome-wide expression profiling of the Arabidopsis female gametophyte identifies families of small, secreted proteins. [PDF]

open access: yesPLoS Genetics, 2007
The female gametophyte of flowering plants, the embryo sac, develops within the diploid (sporophytic) tissue of the ovule. While embryo sac-expressed genes are known to be required at multiple stages of the fertilization process, the set of embryo sac ...
Matthew W Jones-Rhoades   +2 more
doaj   +1 more source

The Ovule and the Embryo Sac. [PDF]

open access: yesThe Plant Cell, 1993
The plant life cycle is characterized by the alternation of generations between a diploid sporophyte and a haploid gametophyte. The sporophyte functions to produce spores, which then develop into gametophytes. The differentiated gametophytes in turn produce either the male gametes (sperm) or female gametes (egg cells).
L., Reiser, R. L., Fischer
openaire   +2 more sources

Auxin Import and Local Auxin Biosynthesis Are Required for Mitotic Divisions, Cell Expansion and Cell Specification during Female Gametophyte Development in Arabidopsis thaliana. [PDF]

open access: yesPLoS ONE, 2015
The female gametophyte of flowering plants, called the embryo sac, develops from a haploid cell named the functional megaspore, which is specified after meiosis by the diploid sporophyte. In Arabidopsis, the functional megaspore undergoes three syncitial
Aneesh Panoli   +9 more
doaj   +1 more source

Apomictic development during different flower development stages in Crataegus tanacetifolia (Lam.) Pers., endemic to Turkey

open access: yesNotulae Scientia Biologicae, 2021
In this study, aposporic apomictic development and its relation to the different flower development stages were investigated by light and fluorescence microscopy in Crataegus tanacetifolia (Lam.) Pers. (Rosaceae). At pre-anthesis stage, aposporic initial
Aslıhan ÇETİNBAŞ-GENÇ   +1 more
doaj   +1 more source

Change of zinc mobilization and gene expression of key zinc transport proteins between the yolk sac membrane and liver of duck embryonic developing

open access: yesPoultry Science, 2022
: Zinc (Zn) deposition in egg yolk is essential for the rapid growth and complete development of the avian embryo. Thus, it is crucial to obtain maximal Zn mobilization at an appropriate time during development in favor of the survival of avian embryos ...
S.P. Bai   +10 more
doaj   +1 more source

Embryo sac development in some South African Lantana species (Verbenaceae)

open access: yesBothalia: African Biodiversity & Conservation, 1984
Evidence that the South African Lantana camara L. complex only produces sexual embryo sacs is provided. It is shown that the archesporium occasionally divides mitotically and that both archesporia form tetrads.
J. J. Spies
doaj   +1 more source

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