Results 41 to 50 of about 1,471 (114)

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

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

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

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

Microsporogenesis and pollen formation in cassava

Biologia Plantarum, 2011
This article describes the complete microsporogenesis and pollen formation in cassava (Manihot esculenta Crantz) at the various developmental stages (pollen mother cell, meiosis, tetrads, early free spore, mid uninucleate, late uninucleate, binucleate ...
C. Wang, Z. Lentini, E. Tabares, M. Quintero, H. Ceballos, B. Dedicova, C. Sautter, C. Olaya, P. Zhang   +8 more
doaj   +1 more source

Actin filaments drive spindle positioning in Arabidopsis meiosis II

New Phytologist, Volume 248, Issue 5, Page 2187-2191, December 2025.
Yingrui Ma, Hua Jiang
wiley   +1 more source

Why are the inner and outer sides of many flower petals differently coloured?

Plant Biology, Volume 26, Issue 5, Page 665-674, August 2024.
Evolutionary hypotheses aimed at explaining why inner and outer sides of petals are often differently coloured. Abstract The flower perianth has various, non‐mutually exclusive functions, such as visual signalling to pollinators and protecting the reproductive organs from the elements and from florivores, but how different perianth structures and their
X.‐Q. Fan, J. Trunschke, Z.‐X. Ren, H. Wang, G. H. Pyke, C. J. van der Kooi, K. Lunau   +6 more
wiley   +1 more source

The male germ unit association is independently regulated of GUM in Arabidopsis thaliana

Plant Direct, Volume 8, Issue 7, July 2024.
Abstract Cytoplasmic projections (CPs) formed by the generative and sperm cells link the male gametes with the vegetative cell (VC) nucleus, which are required to build the male germ unit (MGU) assemblage in the angiosperm pollen grain. As molecular and genetic controls underlying CP development and formation of the MGU are unknown, it was hypothesized
Abdur Rauf, Anbang Wang, Yujia Li, Zhihao Lian, Shouxing Wei, Kashmala Jabbar, Muhammad Wisal, Ikramullah Khan, Muhammad Khalid, Jingyang Li   +9 more
wiley   +1 more source

Cytoplasniic differentiation during microsporogenesis in higher plants

Acta Societatis Botanicorum Poloniae, 2014
Conspicuous cytoplasmic dedifferentiation in the pollen mother cells takes place early in the meiotic prophase of many plants. This event involves the removal of much of the cytoplasmic RNA.
H. Dichinnson
doaj   +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