Results 71 to 80 of about 11,465 (216)

Microspore embryogenesis in vitro: the role of stresses

Вавиловский журнал генетики и селекции, 2019
Gametic embryogenesis is one form of totipotency of plant cells, in which either male or female gametes are induced to form embryoids (sporophytes). Regeneration of haploid plants from embryoids and subsequent chromosome duplication result in doubled ...
T. I. Djatchouk, O. V. Khomyakova, V. N. Akinina, I. A. Kibkalo, A. V. Pominov   +4 more
doaj   +1 more source

The low molecular weight fraction of compounds released from immature wheat pistils supports barley pollen embryogenesis [PDF]

, 2015
Pollen embryogenesis provides a useful means of generating haploid plants for plant breeding and basic research. Although it is well established that the efficacy of the process can be enhanced by the provision of immature pistils as a nurse tissue, the ...
Hans-Peter Mock, Jochen Kumlehn, Rico Lippmann, Swetlana Friedel   +3 more
core   +2 more sources

The Rice Cis‐Natural Antisense Transcript NAT1850 of Pri‐miR1850 Negatively Regulates Cold Tolerance by Repressing NPR3

Plant Biotechnology Journal, EarlyView.
ABSTRACT Natural antisense transcripts (NATs) correspond to nearly 60% of annotated rice loci, however their functions are largely unknown. In this study, we characterise a rice cis‐NAT (NAT1850) that completely overlaps with a rice‐specific primary miRNA, pri‐miR1850.
Yang Shen, Yan Wang, Lijia Yang, Dongpeng Li, Weifeng Dong, Xijuan Zhang, Weibing Yang, Hui Xie, Jin Liu, Shiyong Song, Mingzhe Sun, Xiaoli Sun   +11 more
wiley   +1 more source

Embryological studies inMecardonia procumbens (Miller) small [PDF]

, 1983
Sporogeneses, development of gametophytes, endosperm and embryo ofMecardonia procumbens (Miller) Small have been described. The wall of the microsporangium consists of an epidermis, an endothecium, a middle layer and a glandular tapetum.
Krishne Gowda, ., Magaraj, M.
core   +1 more source

Redundant Glycerol‐3‐Phosphate Acyltransferases Regulate Thermo‐Sensitive Genic Male Sterility in Rice

Plant Biotechnology Journal, EarlyView.
ABSTRACT Thermo‐sensitive genic male sterility (TGMS) lines play a pivotal role in two‐line hybrid rice breeding. However, the availability of elite TGMS germplasm remains limited, and the molecular mechanisms underlying fertility transition of TGMS lines are still poorly understood.
Siqi Cheng, Hai Zheng, Yunlu Tian, Chaolong Wang, Xiaowen Yu, Kun Dong, Jian Wang, Jiayu Lu, Keyi Chen, Xiaodong He, Kun Shao, Junwen Gao, Bowen Yao, Yang Hu, Zhenwei Xie, Ling He, Zhao Xie, Yuantao Zhu, Song Guo, Dekun Lei, Anqi Jian, Xufei Zhu, Hao Yu, Shihao Zhang, Minrui Chen, Yun Chen, Ling Jiang, Yulong Ren, Xiuping Guo, Shijia Liu, Xi Liu, Shanshan Zhu, Zhigang Zhao, Jianmin Wan   +33 more
wiley   +1 more source

Pollen development in Mill. (Annonaceae). Implications for the evolution of aggregated pollen [PDF]

, 2009
In most flowering plants, pollen is dispersed as monads. However, aggregated pollen shedding in groups of four or more pollen grains has arisen independently several times during angiosperm evolution.
Lora, Jorge, Testillano, Pilar S., Risueño, María Carmen, Hormaza Urroz, José Ignacio, Herrero Romero, María   +4 more
core   +1 more source

In Vivo Propagation of Root Explants of the Dandelion Species Taraxacum kok‐saghyz, Taraxacum officinale and Their Interspecific Hybrids

Plant Breeding, EarlyView.
ABSTRACT The dandelion species Taraxacum kok‐saghyz is a promising new crop for natural rubber production and is currently in the early stages of the breeding process. To support these efforts, the multiplication and conservation of defined genotypes are crucial.
René Kaiser, Britta Öhrlein, Nicole van Deenen, Helge Flüß, Axel Schechert   +4 more
wiley   +1 more source

Assessing the adaptive potential of European beech populations to temperature and precipitation along a steep environmental gradient in the south‐eastern Carpathians

Plant Biology, EarlyView.
This study focuses on the identification of candidate SNPs involved in local adaptation to altitude by environmental association analysis conducted on different natural European beech (Fagus sylvatica) populations. Abstract It is necessary to assess the adaptive potential of European beech populations to climate change.
M. Tost, O. Grigoriadou‐Zormpa, S. Wilhelmi, M. Müller, H. Wildhagen, A. L. Curtu, O. Gailing   +6 more
wiley   +1 more source

Cultivating Callus from Anthers and Regenerating Haploid Plants in Lilium longiflorum

Horticulturae
In vitro anther culture is a technique used to produce haploid plants when regenerating varieties with specific traits. To generate haploid plants with preferred characteristics, an anther culture technique was established for Lilium longiflorum “Show Up”
Yingyang Li, Yufan Li, Xuanke Dong, Yanfang Cai, Jiren Chen, Rong Liu, Fan Zhu   +6 more
doaj   +1 more source

A new microspore embryogenesis system under low temperature which mimics zygotic embryogenesis initials, expresses auxin and efficiently regenerates doubled-haploid plants in Brassica napus

BMC Plant Biology, 2012
Background Microspore embryogenesis represents a unique system of single cell reprogramming in plants wherein a highly specialized cell, the microspore, by specific stress treatment, switches its fate towards an embryogenesis pathway.
Prem Deepak, Solís María-Teresa, Bárány Ivett, Rodríguez-Sanz Héctor, Risueño María C, Testillano Pilar S   +5 more
doaj   +1 more source