Results 11 to 20 of about 80,922 (304)
Frontiers in Physiology, 2022 Although, the effects of 4-non-ylphenol (4-NP) on fish’s reproductive hormones were assessed in several studies using adult models, however, the effect of this endocrine disruptor on immature fish’s reproductive hormones was not addressed commonly.
Alaa El-Din H. Sayed +4 more
doaj +1 more source
Aspergillus nidulans synthesize insect juvenile hormones upon expression of a heterologous regulatory protein and in response to grazing by Drosophila melanogaster larvae. [PDF]
PLoS ONE, 2013 Secondary metabolites are known to serve a wide range of specialized functions including communication, developmental control and defense. Genome sequencing of several fungal model species revealed that the majority of predicted secondary metabolite ...
Morten Thrane Nielsen +9 more
doaj +1 more source
Plants, 2021 Trees have a distinctive and generally long juvenile period during which vegetative growth rate is rapid and floral organs do not differentiate. Among trees, the juvenile period can range from 1 year to 15–20 years, although with some forest tree species,
Isabel Vidoy-Mercado +5 more
doaj +1 more source
Juvenile phase: an important phase of the life cycle in plants
Ornamental Plant Research, 2023 The juvenile phase of plants refers to the period from seed germination to the period in which they gain flowering ability. The phase is vital for the breeding of new plant varieties, the study of plant stress and immune responses, and the utilization of
Tianqi Pan, Xinyue Fan, Hongmei Sun
doaj +1 more source
Structural basis for juvenile hormone biosynthesis by the juvenile hormone acid methyltransferase [PDF]
Journal of Biological Chemistry, 2021 Juvenile hormone (JH) acid methyltransferase (JHAMT) is a rate-limiting enzyme that converts JH acids or inactive precursors of JHs to active JHs at the final step of JH biosynthesis in insects and thus presents an excellent target for the development of insect growth regulators or insecticides.
Pengchao Guo +9 more
openaire +2 more sources
Hormones as adaptive control systems in juvenile fish
Biology Open, 2020 Growth is an important theme in biology. Physiologists often relate growth rates to hormonal control of essential processes. Ecologists often study growth as a function of gradients or combinations of environmental factors.
Jacqueline Weidner +4 more
doaj +1 more source
Role of Endocrine System in the Regulation of Female Insect Reproduction
Biology, 2021 The proper synthesis and functioning of ecdysteroids and juvenile hormones (JHs) are very important for the regulation of vitellogenesis and oogenesis.
Muhammad Zaryab Khalid +3 more
doaj +1 more source
Sex-change chemicals and their influence on the brain. [PDF]
, 2001 The potential for man-made chemicals to mimic or antagonise natural hormones is a controversial issue, but one for which increasing amounts of evidence are being gathered worldwide.
Harris, CA
core +3 more sources
Four-way regulation of mosquito yolk protein precursor genes by juvenile hormone-, ecdysone-, nutrient-, and insulin-like peptide signaling pathways. [PDF]
, 2014 Anautogenous mosquito females require a meal of vertebrate blood in order to initiate the production of yolk protein precursors by the fat body. Yolk protein precursor gene expression is tightly repressed in a state-of-arrest before blood meal-related ...
Attardo, Geoffrey M +3 more
core +2 more sources
Neurohormones in insect stress: A review [PDF]
Archives of Biological Sciences, 2006 The neurohormones are the master regulators of all life processes in insects and they create a strategy of stress protecting events. Neurohormones are synthesized mainly in insect brain neurosecretory neurons.
Perić-Mataruga Vesna +2 more
doaj +1 more source