Results 51 to 60 of about 13,138 (208)

Inhibitory Role of the Mud Crab Short Neuropeptide F in Vitellogenesis and Oocyte Maturation via Autocrine/Paracrine Signaling

Frontiers in Endocrinology, 2018
Neuropeptides, in addition to their classical role in the nervous system, act on intraovarian factors to regulate reproductive functions in vertebrates. However, this function of neuropeptides has not been characterized in crustaceans. Short neuropeptide
Chenchang Bao, Yanan Yang, Huiyang Huang, Haihui Ye, Haihui Ye   +4 more
doaj   +1 more source

Full-Length Transcriptome Sequencing and Comparative Transcriptomic Analysis Provide Insights Into the Ovarian Maturation of Exopalaemon carinicauda

Frontiers in Marine Science, 2022
The ridgetail white shrimp Exopalaemon carinicauda has the potential to be used as a useful experimental organism in the field of crustacean research due to its transparent body, large egg, and short reproductive cycle. However, little is known about the
Jiajia Wang, Jiajia Wang, Jitao Li, Jitao Li, Qianqian Ge, Wenyang Li, Jian Li, Jian Li   +7 more
doaj   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source

Effect of dietary cholesterol on ovarian development of Chinese mitten crabs (Eriocheir sinensis)

Frontiers in Marine Science, 2022
This study was conducted to evaluate the effect of cholesterol (CHO) on ovarian development of Eriocheir sinensis through a feeding trial. Crabs (average weight 43.35 ± 0.05 g) were randomly fed with one of three diets: 0% CHO, 0.4% CHO and 1.6% CHO for ...
Huixing Guo, Mangmang Wang, Xi Wang, Kang Xiao, Yangyang Huang, Haokun Hua, Wei Xiong, Wenbin Liu, Kenneth Prudence Abasubong, Wei Qiang, Cheng Chi, Guangzhen Jiang   +11 more
doaj   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

Insect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo, Bing‐Bing Shi, Xue‐Qi Zhang, Qiong Yang   +3 more
wiley   +1 more source

Comparison of Short-Term Estrogenicity Tests for Identification of Hormone-Disrupting Chemicals [PDF]

, 1999
The aim of this study was to compare results obtained by eight different short-term assays of estrogenlike actions of chemicals conducted in 10 different laboratories in five countries. Twenty chemicals were selected to represent direct-acting estrogens,
Ana M. Soto, Anette Møller, Anita Oles-Karasko, Anna-Maria Andersson, Bigsby RM, Birgitte Gissel, Bodil Korsgaard, Carlos Sonnenschein, Eva Bonefeld Jørgensen, Farzad Pakdel, Helle Raun Andersen, Henrik Leffers, Herman Autrup, Jesper Bo Nielsen, John McLachlan, John P. Sumpter, Klotz DM, Knud L. Pedersen, Korach KS, Kuiper GGJM, Levin W, Lisette B. Christiansen, Marianne Barfoed, Nicola A. Beresford, Nicolas Olea, Niels Erik Skakkebœk, Philippe Grandjean, Pilar Perez, Poul Bjerregaard, Remy Le Guevel, René Hummel, Soto AM, Soto AM, Steven F. Arnold, Susan M. Thorpe   +34 more
core   +2 more sources

Weaponry Investment in the Socially Monogamous Snapping Shrimp Alpheus brasileiro (Decapoda: Alpheidae)

Acta Zoologica, EarlyView.
ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira, Caio Santos Nogueira, Régis Augusto Pescinelli, Rogerio Caetano Costa   +3 more
wiley   +1 more source

Characterization and Gene Expression of Vitellogenesis-Related Transcripts in the Hepatopancreas and Ovary of the Red Swamp Crayfish, Procambarus clarkii (Girard, 1852), during Reproductive Cycle

Diversity, 2021
The major component of the animal egg yolk is the lipoglycoprotein vitellin, derived from its precursor vitellogenin (VTG), which is produced species-specifically in decapod crustaceans in the hepatopancreas and/or in the ovary of reproductive females ...
Chiara Manfrin, Moshe Tom, Massimo Avian, Silvia Battistella, Alberto Pallavicini, Piero Giulio Giulianini   +5 more
doaj   +1 more source

Relations of environmental contaminants, algal toxins, and diet with the reproductive success of American alligators on Florida Lakes [PDF]

, 2001
(113 page ...
Arnold, Beverly S., Gross, Timothy S., McDonald, Kelly, Spulveda, Maria S.   +3 more
core  

Gonadulin and Insulin‐Like Growth Factor Involved in Rhipicephalus microplus Reproduction

Entomologia Experimentalis et Applicata, EarlyView.
Insulin‐like growth factor (IGF2) in ovaries of Rhipicephalus microplus partially engorged females. Ovaries from females at different feeding stages were used to detect IGF2. ABSTRACT Gonadulin and insulin‐like growth factor (IGF) are neuropeptides synthesized by the central nervous system (CNS) of arthropods.
Jéssica Waldman, Lucas Teixeira de Castro, Vinícius Andrade‐Silva, Jéssica Andrade Paes, Luís Fernando Parizi, Maria Aparecida Juliano, Saulo Petinatti Pavarini, David Driemeier, Itabajara da Silva Vaz Jr.   +8 more
wiley   +1 more source