Results 101 to 110 of about 42,192 (244)

Histological characterisation of gonadal sex differentiation in Malabar red snapper (Lutjanus malabaricus) for aquaculture advancement

open access: yesJournal of Fish Biology, EarlyView.
Abstract The Malabar red snapper (Lutjanus malabaricus) is a high‐value tropical marine species receiving growing attention for aquaculture development in Singapore and Southeast Asia. At present, seed production relies primarily on uncontrolled mass spawning in sea cages, a practice that lacks consistency, biosecurity and control of genetic ...
Bing Liang   +8 more
wiley   +1 more source

The hard and soft of it: The role of substrate in patterns of phase dominance and phenology in Gracilaria vermiculophylla

open access: yesJournal of Phycology, EarlyView.
Abstract Despite the importance of the seasonal timing of events in the life cycle for understanding population dynamics, we lack information on the phenology of most macroalgal species. The red macroalga Gracilaria vermiculophylla has become common in both hard‐ and soft‐bottom habitats following its invasion throughout the Northern Hemisphere.
Stacy A. Krueger‐Hadfield   +3 more
wiley   +1 more source

Dreadlocks (Dock) is necessary to regulate growth of the germline ring canals in the developing \u3ci\u3eDrosophila melanogaster\u3c/i\u3e egg chamber [PDF]

open access: yes, 2017
Infertility is a prevalent issue in the United States, impacting 1.5 million women (1). A possible cause of infertility is defects in gametogenesis, or the formation of sperm and egg.
Crowe, Olivia
core   +1 more source

Stress Granule‐Associated ZmCTU2 Confers Thermotolerance in Maize via Coordinated Regulation of Proteostasis and ROS Homeostasis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT The escalating global temperatures and intensifying heat stress events pose significant threats to maize productivity worldwide. Uncovering key thermotolerance genes and their functional mechanisms is thus critical for developing climate‐resilient crops.
Yufang Xu   +8 more
wiley   +1 more source

Sexual reproduction of the reef-building coral Diploria labyrinthiformis (Scleractinia:Faviidae),in the Colombian Caribbean

open access: yesRevista de Biología Tropical, 2004
Sexual reproduction of the coral Diploria labyrinthiformis was studied for the first time.Monthly histological analyses at the Corales del Rosario National Park (Colombian Caribbean) from May 1997 to April 1998 show that D.labyrinthiformis is a ...
Elvira M Alvarado Ch   +2 more
doaj  

Human Primordial Germ Cells Are Specified from Lineage-Primed Progenitors. [PDF]

open access: yes, 2019
In vitro gametogenesis is the process of making germline cells from human pluripotent stem cells. The foundation of this model is the quality of the first progenitors called primordial germ cells (PGCs), which in vivo are specified during the peri ...
Aslanyan, Marianna   +11 more
core  

Effects of temperature on sexual competition in three kelp species, Pterygophora californica, Nereocystis luetkeana, and Macrocystis pyrifera: Implications for range shifts in foundation species

open access: yesPhycological Research, EarlyView.
SUMMARY Kelp forests are threatened by rising ocean temperatures. However, the effects of warming on early life stage interactions among co‐occurring kelp species, particularly competitive dynamics and reproductive timing, remain poorly understood. This study investigates the effects of temperature on embryonic sporophyte competitive interactions and ...
Alexis Cynthia Howard Troll
wiley   +1 more source

Variación lipídica en los ovocitos de la medusa Stomolophus meleagris (Scyphozoa: Rhizostomeae), durante el desarrollo gonádico, en la laguna Las Guásimas, Sonora, México

open access: yesRevista de Biología Tropical, 2010
La medusa S. meleagris, ha mostrado potencial de explotación pero hay escasa información sobre su biología reproductiva. El presente trabajo pretende conocer el contenido de los triglicéridos y fosfolípidos en los ovocitos durante el desarrollo gonadal ...
Liliana Carvalho-Saucedo   +3 more
doaj  

Gametogenesis in malaria parasites is mediated by the cGMP-dependent protein kinase.

open access: yesPLoS Biology, 2008
Malaria parasite transmission requires differentiation of male and female gametocytes into gametes within a mosquito following a blood meal. A mosquito-derived molecule, xanthurenic acid (XA), can trigger gametogenesis, but the signalling events ...
Louisa McRobert   +7 more
doaj   +1 more source

Assisted recovery of tissue loss in massive corals Orbicella faveolata: an alternative conservation tool for restoring damaged colonies

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Coral reefs, vital for marine ecosystems and human well‐being, face drastic decline due to climate change effects. In the Caribbean, global disturbances and regional water pollution exacerbate conditions, eliciting disease outbreaks that, in synergy with coral bleaching and hurricanes, cause significant damage to key reef‐building
J. J. Adolfo Tortolero‐Langarica   +2 more
wiley   +1 more source

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