Results 221 to 230 of about 79,284 (318)

Systematics of the New World Rostrate Genus Metaxyphloeus Thomas, 1984 (Coleoptera: Laemophloeidae): Morphological Evidence for Monophyly Supporting a Broader Generic Concept

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT A morphology‐based MP analysis is undertaken to test the monophyly of the lined flat bark beetle genus Metaxyphloeus Thomas, 1984, as well as to hypothesize its intra‐ and intergeneric evolutionary relationships. Based on the results of the present work, Metaxyphloeus, as currently composed, is hypothesized as a monophyletic assemblage of ...
Matheus Bento
wiley   +1 more source

A Revised Understanding of Petalomonad Diversity (Petalomonadida; Euglenida) Enabled by a Cultivation Approach, With Five New Species and Two New Genera

open access: yesJournal of Eukaryotic Microbiology, Volume 73, Issue 3, May/June 2026.
ABSTRACT Euglenids are an important group of free‐living phototrophic, osmotrophic, or phagotrophic protists, with most of the phylogenetic diversity represented by phagotrophs. One major subgroup of phagotrophs is the petalomonads: rigid, often relatively small cells with few pellicle strips (usually 4–8).
Won Je Lee   +7 more
wiley   +1 more source

Modulation of Murine Hippocampal Synaptic Plasticity by Microbial Metabolites: Sex‐Specific Effects of the Short‐Chain Fatty Acid Butyrate

open access: yesJournal of Neurochemistry, Volume 170, Issue 5, May 2026.
Butyrate, a gut microbiota‐derived short‐chain fatty acid, enhances hippocampal long‐term potentiation in both sexes, while acetate and propionate have no effect. This enhancement is mediated via FFAR3 signalling in females but not males, revealing a sex‐specific mechanism linking microbial metabolites to synaptic plasticity.
Michael K. Collins   +7 more
wiley   +1 more source

Unmated Queens Show Worker‐Like Behaviour and Gene Expression in Polygynous Colonies of the Ant Stigmatomma pallipes

open access: yesMolecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Insect societies show a reproductive division of labor between egg‐laying queens and workers that fulfil all non‐reproductive tasks. Polygyny, the coexistence of several queens in a colony, has evolved multiple times in social insects. Although queens in polygynous colonies are often assumed to have similar reproductive outputs, they may ...
Maximilian F. Bolder   +3 more
wiley   +1 more source

Genetic Variation in Chemical Defence Affects Protection of an Herbivorous Insect Against Predation

open access: yesMolecular Ecology, Volume 35, Issue 9, May 2026.
ABSTRACT Genetic variation contributes to intraspecific differences in the chemical defence in many insect species, yet the underlying genetic mechanisms remain poorly understood. The horseradish flea beetle, Phyllotreta armoraciae, sequesters glucosinolates from its horseradish host plant and activates them using endogenous myrosinase enzymes.
Johannes Körnig   +9 more
wiley   +1 more source

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