Results 51 to 60 of about 10,473 (257)

Functional Characterization of Ecdysis Triggering Hormone Receptors (AgETHR-A and AgETHR-B) in the African Malaria Mosquito, Anopheles gambiae

open access: yesFrontiers in Physiology, 2021
Insect ecdysis behavior, shedding off the old cuticle, is under the control of specific neuropeptides with the top command by the ecdysis triggering hormone (ETH).
Vikas Jindal   +4 more
doaj   +1 more source

Growth Inhibitory Activity of 6-Methoxyageratochromene on Culex-Quinquefasciatus (Diptera : Culicidae)

open access: yesEnvironment Conservation Journal, 2000
During present study it was recorded that 6-methoxy ageratochromene isolated from whole herb acetone extract of Ageratum conyzoides  inhibits the growth and moulting in the second and fourth instar larval treatment of Culex quinquefasciatus.
P.K. Mishra   +3 more
doaj   +1 more source

Contributions to the biology of molting and growth of the Longarm river prawn Macrobrachium tenellum (Decapoda: Paleamonidae) in Mexico [PDF]

open access: yesArchives of Biological Sciences, 2012
Studies on the molting cycle of Macrobrachium tenellum are not available, which limits the scope of studies of growth and reproduction. The duration of the molt cycle was determined under controlled experimental conditions.
Yamasaki-Granados S.   +5 more
doaj   +1 more source

Sensing Pre- and Post-Ecdysis of Tropical Rock Lobsters, Panulirus ornatus, Using a Low-Cost Novel Spectral Camera

open access: yesJournal of Marine Science and Engineering
Tropical rock lobsters (Panulirus ornatus) are a highly cannibalistic species with intermoult animals predominantly attacking animals during ecdysis (moulting).
Charles Sutherland   +4 more
doaj   +1 more source

Characterization of a set of abdominal neuroendocrine cells that regulate stress physiology using colocalized diuretic peptides in Drosophila [PDF]

open access: yes, 2017
Multiple neuropeptides are known to regulate water and ion balance in Drosophila melanogaster. Several of these peptides also have other functions in physiology and behavior.
Davies, Shireen A.   +3 more
core   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect 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   +2 more
wiley   +1 more source

The Life History of Folsomia Candida (Willem) (Collembola: Isotomidae) Relative to Temperature [PDF]

open access: yes, 2017
The parthenogenetic mode of reproduction in Collembola, although frequently questioned in the past (Schaller, 1953; Mayer, 1957; Falkenhan, 1932), has only recently been recorded and confirmed for several species; Onychiutus parthenogeneticus Choudhuri ...
Butcher, James W., Snider, Renate M.
core   +3 more sources

Requirement of group I lytic polysaccharide monooxygenase for turnover of chitinous cuticle during moulting in two forest pest beetles, Monochamus alternatus and Psacothea hilaris

open access: yesInsect Molecular Biology, EarlyView.
Group I LPMO15‐1 cDNAs from two economically important forest insect pests, M. alternatus and P. hilaris, were cloned. MaLPMO15‐1 and PhLPMO15‐1 show a similar pattern of expression during late stages of development. RNAi for LPMO15‐1 causes failure of adult eclosion in both M. alternatus and P. hilaris.
Daehyeong Kim   +4 more
wiley   +1 more source

Pupal behavior emerges from unstructured muscle activity in response to neuromodulation in Drosophila

open access: yeseLife, 2021
Identifying neural substrates of behavior requires defining actions in terms that map onto brain activity. Brain and muscle activity naturally correlate via the output of motor neurons, but apart from simple movements it has been difficult to define ...
Amicia D Elliott   +7 more
doaj   +1 more source

Preimaginal development of Aedes aegypti L. (Diptera: Culicidae) in brackish water gives rise to adult mosquitoes with thicker cuticles and greater insecticide resistance

open access: yesMedical and Veterinary Entomology, EarlyView.
The principal arboviral vector Aedes aegypti can develop in coastal brackish water field habitats (0.5–15 g/L salt) with larvae possessing thicker cuticles and greater resistance to the larvicide Temephos. Females emerging from brackish water‐developing preimaginal stages are now shown to have thicker and remodelled leg and abdominal cuticles and ...
Kokila Sivabalakrishnan   +6 more
wiley   +1 more source

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