Results 41 to 50 of about 1,432 (112)

Patterns and Drivers of Pollen Temperature Tolerance

Plant, Cell &Environment, Volume 48, Issue 2, Page 1366-1379, February 2025.
ABSTRACT Pollen, a pivotal stage in the plant reproductive cycle, is highly sensitive to temperature fluctuations, impacting seed quality and quantity. While the importance of understanding pollen temperature limits (Tmin, Topt, Tmax – collectively PTLs) is recognized, a comprehensive synthesis of underlying drivers is lacking.
Donam Tushabe, Sergey Rosbakh
wiley   +1 more source

Influence of change in the proportion of H1 histone variants on microsporogenesis and development of male gametophyte in transgenic plants of tobacco (Nicotiana tabacum L.)

Acta Societatis Botanicorum Poloniae, 2011
As continuation of investigations in to the mechanism of the role of the H1 histone, which is a crucial protein component chromosomes of all eukaryotes, transgenic tobacco plants with different levels of the H1 histone variants were examined. Tobacco has
Joanna Ślusarczyk, Andrzej Wierzbicki, Marcin Przewłoka, Teresa Tykarska, Andrzej Jerzmanowski, Mieczysław Kuraś   +5 more
doaj   +1 more source

Impacts of higher daytime temperatures on viable pollen and fruit production in common Cerrado tree Byrsonima pachyphylla (Malpighiaceae)

Biotropica, Volume 56, Issue 5, September 2024.
Temperatures in the Brazilian Cerrado—an important, complex, and biodiverse savannah ecosystem–are increasing, potentially impacting many aspects of plant development and function, including sexual reproduction, which is thought to be particularly sensitive to temperature stress.
Georgina A. Werkmeister, David R. Galbraith, Márcia Cardoso Silva, Jairo Matos Rocha, Milene Alves Oliveira Lima, Pedro Gabriel Tubin, Beatriz Schwantes Marimon, Ben Hur Marimon‐Junior, David Ashley, Santiago Clerici, Oliver L. Phillips, Emanuel Gloor   +11 more
wiley   +1 more source

High-temperature injury and auxin biosynthesis in microsporogenesis.

Frontiers in Plant Science, 2013
Plant reproductive development is more sensitive than vegetative growth to many environmental stresses. With global warming, in particular, plant high temperature injury is becoming an increasingly serious problem.
Atsushi eHigashitani
doaj   +1 more source

Unravelling the unusual: chromosome elimination, nondisjunction and extra pollen mitosis characterize the B chromosome in wild sorghum

New Phytologist, Volume 243, Issue 5, Page 1840-1854, September 2024.
Summary The B chromosomes exhibit diverse behaviour compared with conventional genetic models. The capacity of the B chromosome either to accumulate or to be eliminated in a tissue‐specific manner is dependent on biological processes related to aberrant cell division(s), but here yet remains compatible with normal development.
Miroslava Karafiátová, Tereza Bojdová, Magdaléna Stejskalová, Natália Harnádková, Vinod Kumar, Andreas Houben, Jianyong Chen, Alžběta Doležalová, David Honys, Jan Bartoš   +9 more
wiley   +1 more source

Polyamines in pollen: from microsporogenesis to fertilization

Frontiers in Plant Science, 2016
The entire pollen life span is driven by polyamine (PA) homeostasis, achieved through fine regulation of their biosynthesis, oxidation, conjugation, compartmentalization, uptake, and release.
Iris eAloisi, Giampiero eCai, Donatella eSerafini-Fracassini, Stefano eDel Duca   +3 more
doaj   +1 more source

OsALKBH9‐mediated m6A demethylation regulates tapetal PCD and pollen exine accumulation in rice

Plant Biotechnology Journal, Volume 22, Issue 9, Page 2410-2423, September 2024.
Summary The N6‐methyladenosine (m6A) mRNA modification is crucial for plant development and stress responses. In rice, the male sterility resulting from the deficiency of OsFIP37, a core component of m6A methyltransferase complex, emphasizes the significant role of m6A in male fertility. m6A is reversible and can be removed by m6A demethylases. However,
Jun Tang, Dekun Lei, Junbo Yang, Shuyan Chen, Xueping Wang, Xiaoxin Huang, Shasha Zhang, Zhihe Cai, Shanshan Zhu, Jianmin Wan, Guifang Jia   +10 more
wiley   +1 more source

Apricot flower bud dormancy: main morphological, anatomical and physiological features related to winter climate influence

Advances in Horticultural Science, 2013
This review examines recent advances regarding flower bud dormancy in apricot, focusing on biological, anatomical, and physiological processes which occur during the induction and depth of dormancy.
R. Viti, S. Bartolini, L. Andreini
doaj   +1 more source

Bud Initiation, Microsporogenesis, Megasporogenesis, and Cone Development in Platycladus orientalis

HortScience, 2020
As a native tree species with a strong adaptability, Platycladus orientalis is a species of choice for afforestation and landscaping in northern China. However, it develops mostly male cones and few female cones.
Ting Liao, Guobin Liu, Liqin Guo, Ye Wang, Yanwu Yao, Jun Cao   +5 more
doaj   +1 more source

International Biological Flora: Ceratonia siliqua

Journal of Ecology, Volume 112, Issue 8, Page 1885-1922, August 2024.
The carob tree (Ceratonia siliqua) has a long traditional history in Mediterranean cultures providing food for humans and domestic animals. Its remarkable tolerance of drought, salt and fire, with an ability to thrive in poor, dry soils, makes it ideal for a warming Mediterranean climate.
Peter A. Thomas, Xavier Garcia‐Martí, Tarek A. Mukassabi, Joan Tous   +3 more
wiley   +1 more source