Results 21 to 30 of about 430,506 (249)
Structure Determination of a Natural Juvenile Hormone Isolated from a Heteropteran Insect
Juvenile hormone (JH), which occurs in several forms in different insects, is one of the most important insect hormones. The structure of JH in Heteroptera has not been elucidated until recently, although insects in this suborder have long been used as ...
Toyomi Kotaki +2 more
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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
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Jasmonic acid levels decline in advance of the transition to the adult phase in maize
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
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Seasonal changes in plasma levels of sex hormones in the greater Rhea (Rhea americana), a South American Ratite with a complex mating system. [PDF]
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
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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
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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
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Bioanalogues oj juvenile hormones and intestines mycoflora of some insects
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
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Eat to reproduce: a key role for the insulin signaling pathway in adult insects
Insects, like all heterotrophic organisms, acquire from their food the nutrients that are essential for anabolic processes that lead to growth (larval stages) or reproduction (adult stage).
Liesbeth eBadisco +2 more
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ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider +15 more
wiley +1 more source
Pyramidal neurons in the neocortex receive a majority of their synapses on dendritic spines, whose growth, gain, and loss regulate the strength and identity of neural connections.
Josiah R. Boivin +3 more
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