Results 81 to 90 of about 25,941 (224)

Coevolution and Functional Effects of Endosymbiotic Rickettsia in Leptocybe invasa Fisher & LaSalle (Hymenoptera: Eulophidae) Across China

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
Two distinct lineages of L. invasa and the dominant endosymbiont, Rickettsia, was identified, followed by an analysis of its infection density across various developmental stages and tissues of L. invasa. Furthermore, two distinct strains of the Rickettsia endosymbiont were detected, and the phylogenetic relationships between these strains and their L.
Xiu Xu   +5 more
wiley   +1 more source

Complex genome evolution in Anopheles coluzzii associated with increased insecticide usage in Mali. [PDF]

open access: yes, 2015
In certain cases, a species may have access to important genetic variation present in a related species via adaptive introgression. These novel alleles may interact with their new genetic background, resulting in unexpected phenotypes.
Brisco, Katherine   +7 more
core   +1 more source

Acaricidal activity of small molecule antagonists of the tick kinin receptor against Rhipicephalus microplus acaricide‐susceptible and resistant strains

open access: yesPest Management Science, Volume 82, Issue 2, Page 1618-1628, February 2026.
Two small molecules, SACC‐0039590 and SACC‐0428788, killed cattle fever tick, R. microplus, susceptible Deutch strain and pyrethroid resistant Arauquita strain larvae. SACC‐0039590 at 1 mM decreased the reproductive parameters of Deutch females. Abstract BACKGROUND Resistance to acaricides underscores the need for tick control alternatives.
Waleed M. Arafa   +2 more
wiley   +1 more source

Early exposure to deltamethrin deteriorates testicular and post-testicular sperm maturation events in rats

open access: yesAsian Pacific Journal of Reproduction
Objective: To explore the effects of deltamethrin exposure during prepubertal stage on male reproductive parameters in rats. Methods: Forty male Wistar rats, aged 23 postnatal days, were randomly divided into four groups of ten rats each.
Daveedu Thathapudi   +4 more
doaj   +1 more source

Evaluation of the pollution pressures posed by groups of chemicals on British riverine invertebrate populations

open access: yesBiological Reviews, Volume 101, Issue 1, Page 106-127, February 2026.
ABSTRACT Globally, rivers receive a diverse range of chemicals, including metals, pesticides, persistent organic pollutants, petrochemicals, human and veterinary pharmaceuticals and personal care products. However, the extent to which these different chemical groups affect riverine invertebrate communities is not well defined.
Imogen P. Poyntz‐Wright   +2 more
wiley   +1 more source

Spinosad-induced stress on the maize weevil Sitophilus zeamais

open access: yesJulius-Kühn-Archiv, 2018
Although seldom considered, sublethal insecticide exposure may lead to harmful, neutral, or even beneficial responses that may affect (or not) the behavior and fitness of the exposed insects.
Guedes, Raul Narciso C.   +2 more
doaj   +1 more source

First evidence of resistance to pyrethroid insecticides in Italian Aedes albopictus populations after 26 years since invasion [PDF]

open access: yes, 2017
Aedes albopictus has spread during the last decades all over the world. This has increased significantly the risk of exotic arbovirus transmission (e.g.
Antognini, Elisa   +22 more
core   +1 more source

Lifestyle implications of the paradox and management of oxidative stress in sperm

open access: yesThe Journal of Physiology, Volume 604, Issue 3, Page 1028-1044, 1 February 2026.
Abstract figure legend Lifestyle factors influencing male fertility. Schematic overview of lifestyle factors with beneficial (left) and detrimental (right) effects on male fertility. A balanced diet, regular moderate physical activity and stress management strategies support sperm function and redox homeostasis.
Giuseppe T. Patané   +6 more
wiley   +1 more source

Genome‐scale Metabolic Modeling Guided Escherichia coli Engineering for De Novo Biosynthesis of Chrysanthemic Acid

open access: yesAdvanced Science, Volume 13, Issue 2, 9 January 2026.
Genome‐scale metabolic modeling is preceded to the engineered E. coli cell factory for the de novo biosynthesis of biopesticide chrysanthemic acid. The debranching strategy redirects metabolic flux, enhancing precursor and target compound production.
Jiangpeng Yu   +6 more
wiley   +1 more source

Laboratory evaluation of the contact irritancy of a clothianidin solo formulation vs. clothianidin-deltamethrin mixture formulations for indoor residual spraying against pyrethroid-resistant Anopheles gambiae sensu lato

open access: yesParasites & Vectors
Background Clothianidin-based indoor residual spraying (IRS) formulations have become available for malaria control as either solo formulations of clothianidin or a mixture of clothianidin with the pyrethroid deltamethrin.
Thomas Syme   +5 more
doaj   +1 more source

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