Results 21 to 30 of about 1,135 (171)

The morphology of the free‐living females of Strepsiptera (Insecta)

Journal of Morphology, Volume 284, Issue 6, June 2023., 2023
The documentation of the external and internal morphology of the adult free‐living females of Mengenilla moldrzyki and Eoxenos laboulbenei (Strepsiptera, Mengenillidae) using µCT‐based 3D reconstructions and histological serial sections shows far‐reaching specialization and structural simplification of the body.
Daniel Tröger, Heiko Stark, Rolf G. Beutel, Hans Pohl   +3 more
wiley   +1 more source

Ligand‐dependent protein interactions of the juvenile hormone receptor captured in real time

The FEBS Journal, Volume 290, Issue 11, Page 2881-2894, June 2023., 2023
The insect juvenile hormone receptor (JHR) engages in an actively signalling heterodimer after dissociating from stabilising protein complexes formed in the absence of the hormone. The rapid transition, which strictly depends on the agonist‐receptor binding, was monitored in real time using a split luciferase assay in live cells.
Sarka Tumova, Marek Jindra
wiley   +1 more source

Multiple endocrine factors regulate nutrient mobilization and storage in Aedes aegypti during a gonadotrophic cycle

Insect Science, Volume 30, Issue 2, Page 425-442, April 2023., 2023
Aedes aegypti and other anautogenous mosquito species produce eggs in sequential gonadotrophic cycles that are subdivided into a sugar‐feeding previtellogenic phase that produces primary follicles and a blood‐meal activated vitellogenic phase in which primary follicles mature into eggs that females lay. In this study, Dou et al. report Ae.
Xiaoyi Dou, Kangkang Chen, Mark R. Brown, Michael R. Strand   +3 more
wiley   +1 more source

Myoinhibitory peptides in the central complex of the locust Schistocerca gregaria and colocalization with locustatachykinin‐related peptides

Journal of Comparative Neurology, Volume 530, Issue 15, Page 2782-2801, October 2022., 2022
The central complex serves as an internal sky compass in the brain of the desert locust. An antiserum against myoinhibitory peptide (MIP) reveals immunolabeling of five distinct types of central‐complex neuron and provides new insights into the anatomical and neurochemical organization of the locust central complex.
Ronja Hensgen, Stefan Dippel, Sophie Hümmert, Stefanie Jahn, Jutta Seyfarth, Uwe Homberg   +5 more
wiley   +1 more source

Neuropeptides as potential modulators of behavioral transitions in the ant Cataglyphis nodus

Journal of Comparative Neurology, Volume 529, Issue 12, Page 3155-3170, August 2021., 2021
We highlighted the spatial distribution of the neuropeptides allatostatin‐A, corazonin, and tachykinin in the brain of Cataglyphis nodus desert ants. We further show behavioral‐stage‐related changes in allatostatin‐A and corazonin expression patterns.
Jens Habenstein, Markus Thamm, Wolfgang Rössler   +2 more
wiley   +1 more source

POU-M2 promotes juvenile hormone biosynthesis by directly activating the transcription of juvenile hormone synthetic enzyme genes in Bombyx mori

Open Biology, 2022
Juvenile hormone (JH) plays a key role in preventing larval precocious metamorphosis, maintaining larval state, controlling adult sexual development and promoting insect egg maturation.
Rui Cai, Gang Tao, Ping Zhao, Qingyou Xia, Huawei He, Yejing Wang   +5 more
doaj   +1 more source

Transcriptomic, peptidomic, and mass spectrometry imaging analysis of the brain in the ant Cataglyphis nodus

Journal of Neurochemistry, Volume 158, Issue 2, Page 391-412, July 2021., 2021
Cataglyphis ants exhibit an age‐related polyethism with very distinct behavioral‐stages. As a result of their role in underlying physiological and developmental processes, signaling molecules like neuropeptides play a crucial role in behavioral transition regulations.
Jens Habenstein, Franziska Schmitt, Sander Liessem, Alice Ly, Dennis Trede, Christian Wegener, Reinhard Predel, Wolfgang Rössler, Susanne Neupert   +8 more
wiley   +1 more source

A possible role for the dorsolateral protocerebral neurosecretory neurons in the trophic adaptations of Lymantria dispar (Lepidoptera: Lymantriidae)

European Journal of Entomology, 2001
The activity and number of protocerebral neurosecretory neurons of the dorsolateral group (L1, L2 and L2'), as well as the size of the corpora allata were investigated in 5th instar larvae of the gypsy moth (Lymantria dispar) from two populations (oak ...
Vesna PERIĆ-MATARUGA, Jelica LAZAREVIĆ, Vera NENADOVIĆ   +2 more
doaj   +1 more source

Farnesol and farnesal dehydrogenase(s) in corpora allata of the tobacco hornworm moth, Manduca sexta.

Journal of Lipid Research, 1983
The metabolism of [3H]farnesol was studied in cell-free preparations of corpora allata from the tobacco hornworm, Manduca sexta, to assess the role of this presumed biosynthetic precursor of juvenile hormone (JH) III.
F C Baker, B Mauchamp, L W Tsai, D A Schooley   +3 more
doaj   +1 more source

Reproduction-related sound production of grasshoppers regulated by internal state and actual sensory environment

Frontiers in Neuroscience, 2012
The interplay of neural and hormonal mechanisms activated by entero- and exteroreceptors biases the selection of actions by decision making neuronal circuits.
Ralf eHeinrich, Michael eKunst, Andrea eWirmer   +2 more
doaj   +1 more source