Results 51 to 60 of about 96,401 (352)

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

open access: yesInsects, 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   +1 more
doaj   +1 more source

Unrelated Helpers in a Primitively Eusocial Wasp: Is Helping Tailored Towards Direct Fitness? [PDF]

open access: yes, 2010
The paper wasp Polistes dominulus is unique among the social insects in that nearly one-third of co-foundresses are completely unrelated to the dominant individual whose offspring they help to rear and yet reproductive skew is high.
AE Liebert   +41 more
core   +5 more sources

Record of parasitoidism in nests of the primitively social wasp Zethus miniatus Saussure, 1858 (Hymenoptera, Vespidae)

open access: yesEntomological Communications
This note presents two new records of parasitoidism in the nest of the subsocial wasp’ species Zethus (Zethoides) miniatus Saussure, 1858. The nests were collected in two different localities in the Neotropical Savanna - “cerrado” (Minas Gerais State ...
Gabriel C. Jacques   +4 more
doaj   +1 more source

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

open access: yesGenetics 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   +1 more
doaj   +1 more source

A comparative study on the functional response of Wolbachia-infected and uninfected forms of the parasitoid wasp Trichogramma brassicae [PDF]

open access: yes, 2010
Trichogramma species (Hymenoptera: Trichogrammatidae) are haplo-diploid egg parasitoids that are frequently used as biological control agents against lepidopteran pests.
Allahyari, H.   +4 more
core   +3 more sources

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

open access: yesJournal 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

The evolution of gregariousness in parasitoid wasps [PDF]

open access: yes, 1998
Data are assembled on the clutch-size strategies adopted by extant species of parasitoid wasp. These data are used to reconstruct the history of clutch-size evolution in the group using a series of plausible evolutionary assumptions.
Brothers D. J.   +9 more
core   +2 more sources

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Evidence for Widespread Associations between Neotropical Hymenopteran Insects and Actinobacteria

open access: yesFrontiers in Microbiology, 2017
The evolutionary success of hymenopteran insects has been associated with complex physiological and behavioral defense mechanisms against pathogens and parasites.
Bernal Matarrita-Carranza   +9 more
doaj   +1 more source

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