Results 51 to 60 of about 40,338 (304)

Climate‐driven phenological shifts in emergence dates of British bees

Ecology and Evolution, 2023
Climate change has a diverse range of impacts on wild bees, including their phenology or timing of life history events. Climate‐driven phenological shifts can not only impact individuals at species level but also threaten the vital pollination service ...
Chris Wyver, Simon G. Potts, Mike Edwards, Rowan Edwards, Stuart Roberts, Deepa Senapathi   +5 more
doaj   +1 more source

Engineering and Characterization of a Fluorescent Fission Yeast Arp2/3 Complex for Single Molecule Mechanistic Investigations

Cytoskeleton, EarlyView.
ABSTRACT Arp2/3 complex is a seven‐component protein complex that facilitates the assembly of branched actin filament networks by binding to pre‐existing “mother” actin filaments and initiating the nucleation of new branched “daughter” filaments. Arp2/3 complex must be activated by a nucleation promoting factor such as the WASP/Scar protein family. The
Caitlin A. Anderson, Meghan E. O'Connell, Kaitlin E. Homa, Cristian Suarez, Michael L. James, Kashmeera D. Baboolall, Vilmos Zsolnay, Vladimir Sirotkin, David R. Kovar   +8 more
wiley   +1 more source

When Appearance Misleads: The Role of the Entomopathogen Surface in the Relationship with Its Host

Insects, 2020
Currently, potentially harmful insects are controlled mainly by chemical synthetic insecticides, but environmental emergencies strongly require less invasive control techniques. The use of biological insecticides in the form of entomopathogenic organisms
Maurizio Francesco Brivio, Maristella Mastore   +1 more
doaj   +1 more source

The role of Rho GTPases in facial morphogenesis

Developmental Dynamics, EarlyView.
The role of small GTPases, RHOA, RAC1, and CDC42 and pathway mediators is reviewed in the context of embryonic facial development. Lip fusion requires cytoskeletal remodeling during morphogenesis of the facial processes and during lip fusion. Fnm, frontonasal mass; lnp, lateral nasal process; mnp, medial nasal process; mxp, maxillary process; np, nasal
Isra Ibrahim, Joy M. Richman
wiley   +1 more source

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Relationships between Body Size and Parasitic Fitness and Offspring Performance of Sclerodermus pupariae Yang et Yao (Hymenoptera: Bethylidae). [PDF]

PLoS ONE, 2016
The relationship between body size and fitness in parasitoid wasps has several effects on parasitic ability, reproductive behavior in female wasps, and progeny fitness.
Shangkun Gao, Yanlong Tang, Ke Wei, Xiaoyi Wang, Zhongqi Yang, Yanlong Zhang   +5 more
doaj   +1 more source

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos, Danielle Santos, Lupis Ribeiro, Jonathan J. Mucherino‐Muñoz, Marcelle Uhl, Carlos Logullo, A. Mendonça‐Amarante, M. Fantappie, Rodrigo Nunes‐da‐Fonseca   +8 more
wiley   +1 more source

Gene variation and genetic differentiation among populations of the solitary mud dauber wasp Trypoxylon (Trypargilum) albitarse Fabricius 1804 (Hymenoptera, Crabronidae)

Genetics and Molecular Biology, 2015
Trypoxylon is a genus of solitary crabronid wasps whose population genetics is poorly known. The purpose of the present study was to investigate the genetic variation and differentiation among five populations of Trypoxylon albitarse, a species widely ...
Antonio C.B. Bergamaschi, Marco A. Del Lama   +1 more
doaj   +1 more source

The use of edible insects in human food

Journal of the Science of Food and Agriculture, EarlyView.
Abstract The world population is expected to reach approximately 10 billion people by 2050, which will significantly increase global food demand and may lead to agricultural shortages and a higher risk of food insecurity. In this context, this review discusses the potential of insects as alternative sources of animal protein, addressing their ...
Pamela Barroso de Oliveira, Hugo Calixto Fonseca, Cláudia Regina Vieira, Gleidson Giordano Pinto de Carvalho, Jane Sélia dos Reis dos Coimbra, Bruna Mara Aparecida de Carvalho Mesquita   +5 more
wiley   +1 more source

Ultramorphological analysis of the venom glands and their histochemical relationship with the convoluted glands in the primitive social paper wasp Polistes versicolor (Hymenoptera: Vespidae)

Journal of Venomous Animals and Toxins including Tropical Diseases, 2005
The venom glands are part of the most important defense weapon in Aculeata: the venom apparatus. The arrangement of these glands can vary among species, but in general they are composed of long secretory tubules connected to a muscular sac-like reservoir.
F. B. Britto, F. H. Caetano
doaj   +1 more source