Results 61 to 70 of about 1,217 (172)
Development of Male and Female Gametophyte in Symphytum orientale L. (Boraginaceae)
The presented study elucidates developmental features of male and female gametophyte in Symphytum orientale L. (Boraginaceae). Flower buds were collected from natural habitats (İstanbul-Turkey) in March-April. The anthers of S.
Filiz VARDAR, Ertuğrul Ali YAVUZ
doaj +1 more source
A biomechanical model of anther opening reveals the roles of dehydration and secondary thickening.
Understanding the processes that underlie pollen release is a prime target for controlling fertility to enable selective breeding and the efficient production of hybrid crops.
Yang, C +33 more
core +1 more source
Semi-thin sections to observe anter of 1258A (A–E) and P5A (F–J) during pollen develop. (A, F) Sporogenous cell differentiation stage; (B, G) microspore tetrad stage; (C, H) single nucleus pollen grain stage; (D, I) mature pollen grain stage; (E, J ...
Zechuan Peng (15285190) +3 more
core +1 more source
A rice exocyst subunit gene SEC3A is required for anther dehiscence
Anther dehiscence controls optimal interaction between pollen and stigma, thereby determining the successful sexual reproduction. The regulators or mechanisms of this process remain elusive.
Ranran Tu +7 more
doaj +1 more source
The chimeric gene orf610a reduces cotton pollen fertility by impairing the assembly of ATP synthase
Summary Cytoplasmic male sterility (CMS) serves as a pivotal tool for exploiting hybrid vigour and studying nuclear‐cytoplasmic interactions. Despite its long‐standing use in cotton breeding, the underlying mechanisms of the CMS‐D2 system remain elusive.
Yang Han +13 more
wiley +1 more source
Anther and pollen development in some species of Poaceae (Poales)
Anther and pollen development were studied in Olyra humilis Nees, Sucrea monophylla Soderstr, (Bambusoideae), Axonopus aureus P. Beauv., Paspalum polyphyllum Nees ex Trin. (Panicoideae), Eragrostis solida Nees, and Chloris elata Desv.
AT. Nakamura +2 more
doaj +1 more source
Morphological analyses of pollen and anther development in BTx623 wild-type and ms8 mutant plants.
(A) A BTx623 sorghum spikelet with three mature anthers. Pollen grains released from anthers and stacked on hairy stigmas (A, inset). (B) An ms8 mutant spikelet with three pale and flattened anthers. No pollen grains on the ms8 stigma (B, inset).
John Burke (578290) +6 more
core +1 more source
ABSTRACT Late stamen development is mainly regulated by auxin, which acts through the Auxin Response Factor 8 (ARF8) to promote stamen elongation in Arabidopsis thaliana. Auxin concentration in the stamens peaks at the beginning of late development and then declines, but the contribution of auxin inactivation to auxin homeostasis in stamen has never ...
Davide Marzi +10 more
wiley +1 more source
In this study, the development of male reproductive organ was analysed in Crataegus tanacetifolia (Lam.) Pers., endemic to Turkey. Androecium is composed of 20 stamens which are attached at the base of the filaments. The anther wall formation follows the
Aslıhan ÇETİNBAŞ, Meral ÜNAL
doaj +1 more source
Abnormal tapetum during anther development in autotetraploid rice.
(A, B) Giant tapetal cells (A) and prevacuolation of giant tapetal cells (B) during premeiotic interphase. (C-E) Redundant tapetal cells (C) and tapetum degenerating along with the middle layer (D, E) during meiosis.
Xiang Li (114679) +5 more
core +1 more source

