Results 61 to 70 of about 23,333 (191)

To seal a wound, caterpillars transform blood from a viscous to a viscoelastic fluid in a few seconds

Frontiers in Soft Matter
In insects vulnerable to dehydration, the mechanistic reaction of blood after wounding is rapid. It allows insects to minimize blood loss by sealing the wound and forming primary clots that provide scaffolding for the formation of new tissue.
Pavel Aprelev, Artis Brasovs, Terri F. Bruce, Charles E. Beard, Peter H. Adler, Konstantin G. Kornev   +5 more
doaj   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

Insect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji, Qing Xie, Xiaoxiao Chang, Juan Shi   +3 more
wiley   +1 more source

Enhanced activities of acetylcholinesterase, acid and alkaline phosphatases in Helicoverpa armigera after exposure to entomopathogenic fungi

Invertebrate Survival Journal, 2017
The toxicity of entomopathogenic fungi, Metarhizium anisopliae (isolates Ma-11.1 and Ma-4.1), Isaria fumosorosea (isolates If-02 and If-2.3) and Beauveria bassiana (isolates Bb-01 and Bb-08) to Helicoverpa armigera was assessed by measuring the activity ...
M Bilal, S Freed, M Zubair Ashraf, S Muhammad   +3 more
doaj  

Hemolymph composition, gene expressions in the gills, and thus the survival of euryhaline crabs are controlled by ambient minor cations according to osmotic condition‐dependent manner

Ecology and Evolution, 2020
Na+ and Cl− are the most abundant dissolved ions in seawater, constituting ~ 85% of total ions. They significantly affect the osmolality of body fluids of marine invertebrates.
Masahiro Yamaguchi, Kouichi Soga
doaj   +1 more source

Iflaviruses in arthropods: when small is mighty

Insect Science, EarlyView.
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia, Hannah‐Isadora Huditz, Monique M. van Oers, Vera I.D. Ros   +3 more
wiley   +1 more source

Comparative reproduction performance of Giant African Land Snail (Archachatina marginata) fed with the leguminous plant Leucaena leucocephala

Revista Científica
The study was carried out between July and October 2022 at the sub–station of the Faculty of Agriculture Research and Teaching farm to assess the reproductive performance of Archachatina marginata fed the leguminous Leucaena leucocephala leaf meal as ...
Guy Merlin Tchowan, Ndum Gorreti Tufoin, Ferdinand Ngoula, Joseph Tchoumboue   +3 more
doaj   +1 more source

Individual Acclimatization of Apis mellifera L. to the Thermal Homeostasis of the Colony

Sociobiology, 2019
Bees play an important role in maintaining biodiversity by promoting the pollination of numerous plant species. Recent global climate changes are affecting the average air temperature, thereby altering the biological processes of many species.
Marcos Venâncio Lima, Leonardo Augusto Fonseca Pascoal, Edilson Paes Saraiva, Kilmer Oliveira Soares, João Paulo Araújo Fernandes de Queiroz, Adriana Evangelista-Rodrigues   +5 more
doaj   +1 more source

Hemipteran vectors of stylet‐borne plant viruses: Aphids lead the charge

Insect Science, EarlyView.
Among all sap‐feeding hemipterans, aphids stand out by far as the most important vectors of noncirculative plant viruses. Compared to whiteflies and mealybugs, aphids’ highly specialized stylet anatomy and distinct feeding behaviors contribute, together with other features of their biology, to their remarkable efficiency in transmitting stylet‐borne ...
Yu Fu, Stefano Colella, Marilyne Uzest
wiley   +1 more source

Neoclassical development of genetic sexing strains for insect pest and disease vector control

Insect Science, EarlyView.
The sterile insect technique has been effectively used for decades, and an important component is the availability of sex separation systems, in particular genetic sexing strains. Classical approaches, such as irradiation‐induced chromosomal translocations, have yielded stable strains for species like the Mediterranean fruit fly.
Giovanni Petrucci, Maria‐Eleni Gregoriou, Philippos Aris Papathanos, Marc F. Schetelig, Zhijian Tu, Kostas Bourtzis   +5 more
wiley   +1 more source

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