Results 21 to 30 of about 820 (154)

Cytology and Kinetics of microgametogenesis and fertilization in Plasmodium yoelii nigeriensis

Parasitology, 1975
The sexual development of the microgametocyte of Plasmodium yoelii nigeriensis may be subdivided into microgametogenesis which includes exflagellation, dispersal of the gametes and fertilization. Under our experimental conditions microgametogenesis takes about 8–15 min at 20 °C, the duration of this period being inversely related to temperature ...
R. Sinden, N. A. Croll
semanticscholar   +3 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

Whole-genomic DNA amplifications from individually isolated sweet sorghum microspores. [PDF]

Appl Plant Sci, 2022
Abstract Premise Sorghum is a multi‐use crop, the efficient breeding of which requires the development of new genetic tools. One such tool could be the genetic assessment of free microspores, which are released just after the tetrad stage of pollen development.
Felts AM, Pokharel B, Yahya D, Aziz AN.
europepmc   +2 more sources

4D live-cell imaging of microgametogenesis in the human malaria parasite Plasmodium falciparum

bioRxiv, 2021
Formation of gametes in the malaria parasite occurs in the midgut of the mosquito and is critical to onward parasite transmission. Transformation of the male gametocyte into microgametes, called microgametogenesis, is an explosive cellular event and one ...
Sabrina Yahiya, Sarah Jordan, Holly X Smith, David C. A. Gaboriau, M. T. Famodimu, F. Dahalan, Alisje Churchyard, G. Ashdown, J. Baum   +8 more
semanticscholar   +1 more source

The effects of heat stress on male reproduction and tillering in Sorghum bicolor

Food and Energy Security, Volume 12, Issue 6, November 2023., 2023
Abstract Due to global climate change, heat stress is increasingly harming the growth, development, overall biomass, and grain yield of numerous crops. Heat stress impairs pollen development and thus reduces seed set in Sorghum bicolor (L.) Moench; however, the effects of heat stress on anther development at specific stages and tiller formation remain ...
Ashley Smith, Benjamin R. Gentile, Zhanguo Xin, Dazhong Zhao   +3 more
wiley   +1 more source

RUVBL proteins are involved in plant gametophyte development

The Plant Journal, Volume 114, Issue 2, Page 325-337, April 2023., 2023
Significance Statement We show that RUVBL1 and RUVBL2, plant orthologues of human Pontin and Reptin, are essential for the proper development of both male and especially female gametophytes in Arabidopsis. SUMMARY The proper development of male and female gametophytes is critical for successful sexual reproduction and requires a carefully regulated ...
Eva Dvořák Tomaštíková, Fen Yang, Kristína Mlynárová, Said Hafidh, Šárka Schořová, Alžbeta Kusová, Markéta Pernisová, Tereza Přerovská, Božena Klodová, David Honys, Jiří Fajkus, Ales Pecinka, Petra Procházková Schrumpfová   +12 more
wiley   +1 more source

Hydroxyproline-O-Galactosyltransferases Synthesizing Type II Arabinogalactans Are Essential for Male Gametophytic Development in Arabidopsis

Frontiers in Plant Science, 2022
In flowering plants, male reproductive function is determined by successful development and performance of stamens, pollen grains, and pollen tubes. Despite the crucial role of highly glycosylated arabinogalactan-proteins (AGPs) in male gamete formation,
Dasmeet Kaur, Dasmeet Kaur, Diana Moreira, Diana Moreira, Sílvia Coimbra, Sílvia Coimbra, Allan M. Showalter, Allan M. Showalter   +7 more
doaj   +1 more source

Strategies of tolerance reflected in two North American maple genomes

The Plant Journal, Volume 109, Issue 6, Page 1591-1613, March 2022., 2022
SUMMARY Maples (the genus Acer) represent important and beloved forest, urban, and ornamental trees distributed throughout the Northern hemisphere. They exist in a diverse array of native ranges and distributions, across spectrums of tolerance or decline, and have varying levels of susceptibility to biotic and abiotic stress.
Susan L. McEvoy, U. Uzay Sezen, Alexander Trouern‐Trend, Sean M. McMahon, Paul G. Schaberg, Jie Yang, Jill L. Wegrzyn, Nathan G. Swenson   +7 more
wiley   +1 more source

NETWORKED2‐subfamily proteins regulate the cortical actin cytoskeleton of growing pollen tubes and polarised pollen tube growth

New Phytologist, Volume 231, Issue 1, Page 152-164, July 2021., 2021
Summary We have recently characterised NET2A as a pollen‐specific actin‐binding protein that binds F‐actin at the plasma membrane of growing pollen tubes. However, the role of NET2 proteins in pollen development and fertilisation have yet to be elucidated.
Patrick Duckney, Johan T. Kroon, Martin R. Dixon, Timothy J. Hawkins, Michael J. Deeks, Patrick J. Hussey   +5 more
wiley   +1 more source

High Temperature Has Negative Impact on Pollen Development in Chili Pepper (Capsicum annuum L.) cv. Tanjung-2

Jurnal Ilmu Pertanian Indonesia, 2020
The development of male reproductive organ in plants is seriously affected by the adverse abiotic stresses. In this study, we investigated pollen development, particularly at microsporogenesis and micro gametogenesis stages of chili pepper (Capsicum ...
Iriawati, Isqim Oktaviani, Ahmad Faizal
doaj   +1 more source