Results 41 to 50 of about 7,548 (219)

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

Drosophila female precopulatory behavior is modulated by ecdysteroids

Journal of insect physiology, 2012
The effect of ecdysteroid signaling on Drosophila female precopulatory behavior was investigated using two types of mutants with either globally reduced ecdysteroid availability or reduced expression of ecdysone receptors in fruitless neurons, known to ...
GK Ganter, JB Desilets, J. Davis-Heim, AE Panaitiu, M. Sweezy, J. Sungail, Lch Tan, A. Adams, EA Fisher, J.R.M. O’Brien, KM Kincaid, R. Heinrich   +11 more
semanticscholar   +1 more source

Synthesis and Structure-Activity Relationships of Novel Ecdysteroid Dioxolanes as MDR Modulators in Cancer

Molecules, 2013
Ecdysteroids, molting hormones of insects, can exert several mild, non-hormonal bioactivities in mammals, including humans. In a previous study, we have found a significant effect of certain derivatives on the ABCB1 transporter mediated multi-drug ...
Ana Martins, József Csábi, Attila Balázs, Diána Kitka, Leonard Amaral, József Molnár, András Simon, Gábor Tóth, Attila Hunyadi   +8 more
doaj   +1 more source

Phytohormones and Elicitors Enhanced the Ecdysteroid and Glycosylflavone Content and Antioxidant Activity of Silene repens

Applied Sciences, 2021
In the course of the ongoing chemical study of species of Silene genus, S. repens Patrin as a common species of the genus, was selected as the object of this study.
Nina I. Kashchenko, Daniil N. Olennikov, Nadezhda K. Chirikova   +2 more
doaj   +1 more source

TcALS knockdown accelerates metamorphosis via insulin signaling in Tribolium castaneum

Insect Science, EarlyView.
RNAi silencing of TcALS accelerates larva‐to‐pupa metamorphosis in Tribolium castaneum. Abstract Insect metamorphosis is an evolutionary adaptation precisely regulated by nutritional and hormonal cues. The red flour beetle Tribolium castaneum, a major stored‐product pest, serves as an excellent model for studying this process.
Min Li, Jie Chen, Zi‐Ye Wang, Fei‐Feng Wang, Lu‐Lu Dong, Jun Pan, Min‐Er Li, Lin Yu, Wen Sang   +8 more
wiley   +1 more source

Ecdysteroids affect Drosophila ovarian stem cell niche formation and early germline differentiation

EMBO Journal, 2011
Previously, it has been shown that in Drosophila steroid hormones are required for progression of oogenesis during late stages of egg maturation. Here, we show that ecdysteroids regulate progression through the early steps of germ cell lineage.
Annekatrin König, A. S. Yatsenko, Miriam Weiss, H. Shcherbata   +3 more
semanticscholar   +1 more source

It's Complicated: How Sex, Family, and Season Affect Growth of a Sexually Size Dimorphic Spider

Integrative Zoology, EarlyView.
Extreme female‐biased sexual size dimorphism (SSD) in Nephilingis cruentata emerges when male and female growth trajectories diverge mid‐development. Seasonal effects influence both sexes similarly, but family effects are strongly sex‐specific. These patterns identify a critical developmental window for mechanistic studies of SSD.
Tim Prezelj, Paul Vincent Debes, Rok Golobinek, Simona Kralj‐Fišer   +3 more
wiley   +1 more source

The Parasitoid Wasp Glyptapanteles porthetriae Induces a Photoperiod‐Dependent Diapause‐Like State in Its Potential Overwintering Host Lasiocampa quercus

Entomologia Experimentalis et Applicata, EarlyView.
We evaluated Lasiocampa quercus as an overwintering host for the koinobiont larval endoparasitoid Glyptapanteles porthetriae by exposing parasitized larvae to different environmental conditions and comparing parasitoid development with that in the primary host Lymantria dispar.
Thomas Zankl, Christa Schafellner
wiley   +1 more source

From biology to biotechnology: Host‐regulation factors from parasitoid wasps are a source of bioactive molecules with translational potential

Insect Molecular Biology, EarlyView.
Parasitoid wasps deploy maternal and embryonic factors to reprogramme host physiology. Venom, calyx fluid, polydnaviruses, teratocytes and larval secretions act in a coordinated, compartmentalised manner. Host‐regulation factors are promising sources of insecticidal, antimicrobial and bioinspired translational molecules.
Ciro Pedro G. Pinto, Andrew A. Walker, Glenn F. King   +2 more
wiley   +1 more source

Drosophila male courtship behavior is modulated by ecdysteroids

Journal of insect physiology, 2011
Temperature-dependent induction of ecdysteroid deficiency in the ecdysoneless mutant ecd1 adult Drosophila melanogaster results in altered courtship behavior in males.
GK Ganter, AE Panaitiu, J. Desilets, J. Davis-Heim, EA Fisher, Lch Tan, R. Heinrich, E. Buchanan, KM Brooks, MT Kenney, MG Verde, J. Downey, A. Adams, JS Grenier, S. Maddula, P. Shah, K. Kincaid   +16 more
semanticscholar   +1 more source