Results 21 to 30 of about 554 (149)

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

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

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

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

Dynamics of Calcium during In vitro Microspore Embryogenesis and In vivo Microspore Development in Brassica napus and Solanum melongena

Frontiers in Plant Science, 2017
Calcium is widely known to have a role as a signaling molecule in many different processes, including stress response and activation of the embryogenic program.
Alba Rivas-Sendra, Antonio Calabuig-Serna, Jose M. Seguí-Simarro   +2 more
doaj   +1 more source

Differential Expression Profiling Reveals Stress-Induced Cell Fate Divergence in Soybean Microspores

Plants, 2020
Stress-induced microspore embryogenesis is a widely employed method to achieve homozygosity in plant breeding programs. However, the molecular mechanisms that govern gametophyte de- and redifferentiation are understood poorly.
Brett Hale, Callie Phipps, Naina Rao, Asela Wijeratne, Gregory C. Phillips   +4 more
doaj   +1 more source

Microsporogenesis and microgametogenesis of the Argentinian species ofPodocarpus(Podocarpaceae) [PDF]

Botanical Journal of the Linnean Society, 1996
Abstract The development of the microsporangium and male gametophyte of three species of Podocarpus was studied with light microscopy (LM) and the morphology of pollen with scanning and transmission electron microscopy (SEM and TEM). During early stages, the male cone is covered with coriaceous scales.
openaire   +1 more source

Embriología de las estructuras reproductoras masculinas del género Pinguicula L. (Lentibulariaceae)

Botan‪ical Sciences, 2005
Con el propósito de contribuir al conocimiento embriológico del género Pinguicula (Lentibulariaceae) se estudiaron los procesos ontogenéticos de las estructuras reproductoras masculinas de una especie representativa de cada uno de los tres subgéneros ...
Silvia Espinosa-Matías, Sergio Zamudio, Judith Márquez-Guzmán   +2 more
doaj   +1 more source

ELECTRON MICROSCOPIC STUDY OF THE DEVELOPMENTAL STAGES OF EIMERIA INTESTINALIS CHEISSIN, 1948 IN DOMESTIC RABBIT (ORYCTOLAGUS CUNICULUS) WITH REFERENCE TO ENDODYOGENY [PDF]

Journal of the Egyptian Society of Parasitology, 2014
The endogenous stages in Eimeria intestinalis were studied in experimentally infected coccidia- free rabbits by transmission electron microscopy. Four asexual generations were observed. Two types of merozoites were reported.
HEBA ABDEL-HALEEM, HODA ELFAYOUMI
doaj   +1 more source

Quantitative assessment of DNA replication to monitor microgametogenesis in Plasmodium berghei

Molecular and Biochemical Parasitology, 2009
Targeting the crucial step of Plasmodium transition from vertebrate host to mosquito vector is a promising approach to eliminate malaria. Uptake by the mosquito activates gametocytes within seconds, and in the case of male (micro) gametocytes leads to rapid DNA replication and the release of eight flagellated gametes.
Raabe, Andreas, Billker, Oliver, Vial, Henri, Wengelnik, Kai   +3 more
openaire   +3 more sources