Results 31 to 40 of about 80,118 (189)

Neuroendocrine Regulation of Reproductive Dormancy in the Fruit Fly Drosophila melanogaster: A Review of Juvenile Hormone-Dependent Regulation

open access: yesFrontiers in Ecology and Evolution, 2021
Animals can adjust their physiology, helping them survive and reproduce under a wide range of environmental conditions. One of the strategies to endure unfavorable environmental conditions such as low temperature and limited food supplies is dormancy. In
Yoshitomo Kurogi   +3 more
doaj   +1 more source

Jasmonic acid levels decline in advance of the transition to the adult phase in maize

open access: yesPlant Direct, 2019
Leaf‐derived signals drive the development of the shoot, eventually leading to flowering. In maize, transcripts of genes that facilitate jasmonic acid (JA) signaling are more abundant in juvenile compared to adult leaf primordia; exogenous application of
Krista Osadchuk   +2 more
doaj   +1 more source

Seasonal changes in plasma levels of sex hormones in the greater Rhea (Rhea americana), a South American Ratite with a complex mating system. [PDF]

open access: yesPLoS ONE, 2014
Seasonal rhythm in sex hormones has been extensively studied in birds, as well as its relationship with the type of mating system. The Greater Rhea (Rhea americana), a South American ratite species, reproduces seasonally and has a complex mating system ...
Diego J Valdez   +6 more
doaj   +1 more source

Using blubber explants to investigate adipose function in grey seals:glycolytic, lipolytic and gene expression responses to glucose and hydrocortisone [PDF]

open access: yes, 2017
Adipose tissue is fundamental to energy balance, which underpins fitness and survival. Knowledge of adipose regulation in animals that undergo rapid fat deposition and mobilisation aids understanding of their energetic responses to rapid environmental ...
Bennett, Kimberley A.   +4 more
core   +3 more sources

Interactions between 20-Hydroxyecdysone and Juvenile Hormone I, II, and III during the Developmental Stages of Spodoptera frugiperda

open access: yesAgronomy, 2023
Juvenile hormones (JHs) play a crucial role in the development of the fall armyworm, Spodoptera frugiperda, with varying types and concentrations observed at different stages.
Xuesheng Li   +5 more
doaj   +1 more source

Coping styles in farmed fish: consequences for aquaculture [PDF]

open access: yes, 2017
Individual differences in physiological and behavioural responses to stressors are increasingly recognised as adaptive variation and thus raw material for evolution and fish farming improvements including selective breeding. Such individual variation has
Begout, Marie-Laure   +9 more
core   +4 more sources

Timing is everything: PTTH mediated DHR4 nucleocytoplasmic trafficking sets the tempo of Drosophila steroid production

open access: yesFrontiers in Endocrinology, 2011
During development multicellular organisms must become sexually mature to reproduce. But what underlying developmental clock times this transition? Recent data shows that in fly larvae, nuclear-cytoplasmic trafficking of DHR4, a nuclear receptor, in ...
Kim F Rewitz, Michael B. O'Connor
doaj   +1 more source

The Value of Comparative Animal Research : Krogh’s Principle Facilitates Scientific Discoveries [PDF]

open access: yes, 2017
There are no conflicts of interest to declare. This paper developed from the 2016 Early Career Impact Award from the Federation of Associations in Behavioral & Brain Sciences to TJS. TJS has received funding from The Leverhulme Trust.
Alward, Beau A.   +5 more
core   +2 more sources

Bioanalogues oj juvenile hormones and intestines mycoflora of some insects

open access: yesActa Mycologica, 2014
The subject of this paper is the influence of JH bioanalogues on the mycoflora of intestines of three species of inscets: Dysdereus cinaulams, Pyrrhocoris apterus and Tenebrio molitor. The results are presented in tables.
Andrzej Nespiak   +2 more
doaj   +1 more source

Neurobehavioral function and low-level exposure to brominated flame retardants in adolescents : a cross-sectional study [PDF]

open access: yes, 2012
Background: Animal and in vitro studies demonstrated a neurotoxic potential of brominated flame retardants, a group of chemicals used in many household and commercial products to prevent fire.
Baeyens, Willy   +12 more
core   +1 more source

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