Results 31 to 40 of about 1,985 (173)

Comparative cytological and transcriptome analyses of ny2 mutant delayed degeneration of tapetal cells and promotes abnormal microspore development in neo-tetraploid rice

Frontiers in Plant Science, 2023
We aimed to investigate the genetic defects related to pollen development and infertility in NY2, a novel tetraploid rice germplasm known as Neo-tetraploid rice.
Nabieu Kamara, Nabieu Kamara, Nabieu Kamara, Nabieu Kamara, Nabieu Kamara, Yamin Jiao, Yamin Jiao, Yamin Jiao, Yamin Jiao, Weicong Huang, Weicong Huang, Weicong Huang, Weicong Huang, Lichong Cao, Lichong Cao, Lichong Cao, Lichong Cao, Lianjun Zhu, Lianjun Zhu, Lianjun Zhu, Lianjun Zhu, Chongchong Zhao, Chongchong Zhao, Chongchong Zhao, Chongchong Zhao, Xu Huang, Xu Huang, Xu Huang, Xu Huang, Fimanekeni Ndaitavela Shivute, Fimanekeni Ndaitavela Shivute, Fimanekeni Ndaitavela Shivute, Fimanekeni Ndaitavela Shivute, Fimanekeni Ndaitavela Shivute, Xiangdong Liu, Xiangdong Liu, Xiangdong Liu, Xiangdong Liu, Jinwen Wu, Jinwen Wu, Jinwen Wu, Jinwen Wu, Muhammad Qasim Shahid, Muhammad Qasim Shahid, Muhammad Qasim Shahid, Muhammad Qasim Shahid   +45 more
doaj   +1 more source

Tapetum Types and Forms in Angiosperms [PDF]

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences., 2021
Abstract Based on the analysis of literature and our own data, we have suggested a new version of the typification of types and forms of the tapetum. It is proposed to distinguish two types of tapetum: parietal and periplasmodial.
Ivan I. Shamrov, Galina M. Anisimova, Anastasija A. Babro   +2 more
openaire   +1 more source

Tapetum development in transgenic tobacco (Nicotiana tabacum L.) plants with modlfied level of histone H1 variants

Acta Societatis Botanicorum Poloniae, 2011
The phenomenon of male sterility has often been observed in investigations on the role of histone H1 in regulation of morphogenetic and cytological processes in transgenic tobacco plants.
Joanna Ślusarczyk, Teresa Tykarska, Andrzej Wierzbicki, Andrzej Jerzmanowski   +3 more
doaj   +1 more source

Origin and structure of Ubisch bodies in Pinus sylvestris

Acta Societatis Botanicorum Poloniae, 2014
In Pinus sylvestris Ubisch bodies are produced repeatedly, and each crop is formed at a distinct phase in the secretory cycles of tapetal cells. While each production has a Ubisch body wall similar to the then current state of the exine with regard to ...
John R. Rowley, Björn Walles
doaj   +1 more source

Evolution of an Apomixis-Specific Allele Class in Supernumerary Chromatin of Apomictic Boechera

Frontiers in Plant Science, 2022
Asexual reproduction through seeds in plants (i.e., apomixis) is a heritable trait, and apomixis- linked loci have been identified in multiple species. However, direct identification of genomic elements is typically hindered as apomixis-linked loci and ...
Martin Mau, Martin Mau, Terezie M. Mandáková, Xingliang Ma, Jana Ebersbach, Lifang Zou, Martin A. Lysak, Timothy F. Sharbel, Timothy F. Sharbel   +8 more
doaj   +1 more source

Epigenetic Regulation of Heat Stress in Plant Male Reproduction

Frontiers in Plant Science, 2022
In flowering plants, male reproductive development is highly susceptible to heat stress. In this mini-review, we summarized different anomalies in tapetum, microspores, and pollen grains during anther development under heat stress.
Shikha Malik, Dazhong Zhao
doaj   +1 more source

Characteristics of Pollen from Transgenic Lines of Apple Carrying the Exogenous CpTI Gene

Horticultural Plant Journal, 2015
It is fundamental for gene transformation and ecosystem hazard evaluation to study the pollen characteristics of transgenic plants. In this research, the characteristics of pollen from 7- or 8-year-old transgenic apple plants carrying an exogenous CpTI ...
Shi Xiaoxin, Zhou Ruijin, Wang Qianqian, Chang Tengfei, Feng Shasha, Du Guoqiang   +5 more
doaj   +1 more source

Transcriptomics-Based Identification of Genes Related to Tapetum Degradation and Microspore Development in Lily

, 2022
Lily is a popular and economically ornamental crop around the world. However, its high production of pollen grains causes serious problems to consumers, including allergies and staining of clothes. During anther development, the tapetum is a crucial step
Yuanyuan Zhang, Juanjuan Sui, Wenjie Jia, Yin Xin   +3 more
core   +1 more source

Tapetum-Dependent Male Meiosis Progression in Plants: Increasing Evidence Emerges

Frontiers in Plant Science, 2020
In higher plants, male meiosis is a key process during microsporogenesis and is crucial for male fertility and seed set. Meiosis involves a highly dynamic organization of chromosomes and cytoskeleton and specifically takes place within sexual cells ...
Xiaoning Lei, Bing Liu, Bing Liu
doaj   +1 more source

Microsporogênese e etapas da ontogenia do gametófito masculino de Tabebuia ochracea (Cham.) Standley (Bignoniaceae) Microsporogenesis and the early male gametophyte development of Tabebuia ochraceae (Cham.) Standley (Bignoniaceae)

Acta Botânica Brasílica, 1996
Foram analisadas as etapas da ontogenia do gametófito masculino e da parede da antera de Tabebuia ochracea. O método de formação da parede do microsporângio é do tipo Dicotiledôneo.
Nelson S. Bittencourt Jr
doaj   +1 more source