Results 11 to 20 of about 1,486 (115)

Engineering a Gibberellin-Switchable Dual-Use Line Based on Ent-Kaurene Oxidase Gene ZmKO1 Enables Two-Line Hybrid Seed Production in Maize. [PDF]

Plant Biotechnol J
ABSTRACT Male‐sterile systems are pivotal for maize hybrid seed production, yet existing systems are constrained by significant limitations. Here, we identified a novel single‐gene‐controlled recessive genic male sterility (GMS) mutant, defective in filament elongation 1 (def1), which exhibits non‐elongated filaments, unopened glumes, and non‐exserted ...
Li C, Wang S, Xiang Y, Yu T, Wei R, Mei W, Liu X, Yuan P, Yi H, Zhou S, Xia C, Cao M, Lan H.   +12 more
europepmc   +2 more sources

Methodologies and Considerations in Evaluating Heat Stress Response and Thermotolerance of Pollen Grains. [PDF]

Physiol Plant
ABSTRACT Elevated temperatures severely disrupt pollen function, posing a major threat to agricultural productivity. While research into pollen thermotolerance is rapidly expanding, the quest to identify and develop heat‐tolerant crops is challenged by a lack of consistent methodological considerations and experimental design principles.
Miller G, Frencken M, Sapeta H, Gidding F, Geelen D, Kumar P, Rieu I, Lieberman-Lazarovich M.   +7 more
europepmc   +2 more sources

Comparative insights into molecular pathways influencing germline development in early-divergent angiosperms. [PDF]

Plant J
SUMMARY The molecular and genetic mechanisms regulating female germline development remain largely unknown in basal and early‐divergent angiosperms. This contrasts with recent progress in model eudicots such as Arabidopsis thaliana and monocots, such as rice, barley, and maize. In this study, we investigate the genetic pathway governing female germline
Lora J, Tucker MR, Shirley NJ, Ma C, Hormaza JI.   +4 more
europepmc   +2 more sources

Microsporogenesis of Apricot Cultivars in Hungary

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2013
Like all phenological processes, microsporogenesis is mainly determined genetically, but its phenotypical expression is greatly influenced by environmental factors, particularly the temperature.
Veronika HAJNAL, Zarif OMID, Márta LADÁNYI, Magdolna TÓTH, László SZALAY   +4 more
doaj   +1 more source

Assessment of the effect of aerotechnogenic pollution on male reproductive organs Convolvulus arvensis L. [PDF]

E3S Web of Conferences, 2021
The article presents the results of assessing the impact of airtechnogenic pollution on the male generative organs of Convolvulus arvensis L. The unfavorable effect of toxic emissions from the landfill of municipal solid waste and vehicles on the ...
Ibragimova Evelina, Manankova Olga
doaj   +1 more source

Variations of total protein content and protein synthesis during microsporogenesis in Larix europaea L.

Acta Societatis Botanicorum Poloniae, 2014
The variations of the total protein content and protein synthesis were analyzed in successive stages of microsporogenesis in Larix europaea L. Pure fractions of microsporocytes containing the cells in successive phases of meiosis and fractions of the ...
Wiesława B. Chwirot, Alicja Górska-Brylass   +1 more
doaj   +1 more source

Esterilidade de espiguetas e produção de grãos de genótipos de arroz irrigado submetidos a baixas temperaturas na microsporogênese

Agropecuária Catarinense, 2019
Resumo - Baixas temperaturas reduzem o rendimento do arroz, especialmente quando ocorrem na microsporogênese da cultura. Este trabalho objetivou identificar genótipos tolerantes ao estresse ocasionado pelo frio na microsporogênese.
Francieli Weber Stürmer, Rubens Marschalek, Luis Sangoi, Natalia Maria de Souza   +3 more
doaj   +1 more source

Cytogenetic studies in the Eragrostis curvula Complex

Bothalia: African Biodiversity & Conservation, 1977
Cytogenetic studies were undertaken in the  Eragrostis curvula Complex. Three plants were studied at each of 16 collecting points. The overall morphology and embryo sac development of all plants were evaluated, while the chromosome number and ...
T. B. Vorster
doaj   +1 more source

Advancing Thermotolerance in Beans: Integrating Physiology, Genomics, and Breeding for Climate Adaptation

Legume Science, Volume 8, Issue 3, September 2026.
ABSTRACT Rising global temperatures increasingly threaten bean production and the food security of millions of people who depend on these protein‐rich legumes. Heat stress during the reproductive stages induces pollen sterility, flower abscission, and disruptions in source–sink relationships, resulting in yield losses of 30%–40% or more when critical ...
Aastha Sharda, Shikha Chaudhary, Bhawna Kumari, Uday C. Jha, Mohar Singh, Inderjit Singh, Kamal Dev Sharma, Kadambot H. M. Siddique, P. V. Vara Prasad, Harsh Nayyar   +9 more
wiley   +1 more source

Molecular insights and translational opportunities to enhance heat tolerance in rice

The Plant Genome, Volume 19, Issue 3, September 2026.
Abstract Heat stress is an increasingly serious threat to rice (Oryza sativa L.) productivity, yet the genetic and regulatory architecture underlying thermotolerance remain poorly resolved and fragmented across studies. Earlier research focused on individual pathways or specific developmental stages; however, recent advances now support an integrated ...
Prabhat Rana, Chanderkant Chaudhary, Rajat Pruthi, Mansi Sharma, Bhupinderjeet Singh, Ravi Kiran Reddy Kondi, Mallesham Bulle, Prasanta K. Subudhi   +7 more
wiley   +1 more source