Results 51 to 60 of about 7,548 (219)

Tributyltin: A Bottom–Up Regulator of the Crangon crangon Population?

open access: yesFrontiers in Marine Science, 2019
The restrictions and the concerted action of the global ban on the use and presence of tributyltin (TBT) in marine applications to protect ecosystems in the marine environment in 2008 was mainly based on the economic impact on shellfish industries and ...
Koen F. V. Parmentier   +11 more
doaj   +1 more source

Defecation in preparation for ecdysis drives microplastic clearance in cricket nymphs

open access: yesPhysiological Entomology, EarlyView.
In preparation for ecdysis, cricket nymphs cease feeding and gradually clear their gut contents via frass production, which removes most ingested MPs from their digestive tract. Following exoskeletal moulting, the foregut lining, including any remaining MPs, is shed and excreted alongside frass approximately 6 h later.
Jennie E. Mills   +3 more
wiley   +1 more source

Extração de ecdisterona em raízes de ginseng brasileiro Extraction of ecdysterone from roots of Brazilian ginseng

open access: yesCiência Rural, 2009
Este estudo teve como objetivo otimizar a extração de ecdisterona em raízes de ginseng brasileiro. Primeiramente, para se avaliar a eficiência do solvente extrator, amostras de raízes dois acessos (BRA e JB-UFSM) de P.
Rejane Flores   +5 more
doaj   +1 more source

Putative role of corazonin in the ovarian development of the swimming crab Portunus trituberculatus

open access: yesFrontiers in Marine Science, 2022
Corazonin (Crz) is a neuropeptide that widely distributed in insects and crustaceans. The Crz is proposed to have pleiotropic functions in insects, but its physiological roles in crustaceans are poorly understood.
Shisheng Tu   +5 more
doaj   +1 more source

Effects of Norbixin on Growth Performance, Immunomodulation, Antioxidant Systems, and Metabolic Alterations in the Oriental River Prawn (Macrobrachium nipponense): An Integrative Analysis

open access: yesVeterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Dietary norbixin (0.15 g/kg) optimally promotes growth, immunocompetence, antioxidant defence, gut microbial balance, carotenoid accumulation, and overall nutritional quality in Macrobrachium nipponense. ABSTRACT Background Natural carotenoids have gained considerable attention in aquaculture due to their potential to enhance growth performance ...
Mohammad Ettefaghdoost   +2 more
wiley   +1 more source

Rapid, Nongenomic Responses to Ecdysteroids and Catecholamines Mediated by a Novel Drosophila G-Protein-Coupled Receptor

open access: yesJournal of Neuroscience, 2005
Nongenomic response pathways mediate many of the rapid actions of steroid hormones, but the mechanisms underlying such responses remain controversial.
D. Srivastava   +7 more
semanticscholar   +1 more source

The phytochemical, biological, and medicinal attributes of phytoecdysteroids: An updated review

open access: yesActa Pharmaceutica Sinica B, 2021
The phytoecdysteroids (PEs) comprise a large group of biologically-active plant steroids, which have structures similar to those of insect-molting hormones. PEs are distributed in plants as secondary metabolites that offer protection against phytophagus (
Niranjan Das   +4 more
doaj   +1 more source

Ontogenetic Sequence of Differential Gene Expression in Predator‐Induced Daphnia pulex

open access: yesMolecular Ecology, Volume 35, Issue 13, July 2026.
ABSTRACT In response to predators, many Daphnia species develop inducible morphological defenses. These traits are phenotypically plastic, meaning their production is suppressed in the absence of the predator. While previous studies have identified several neurohumoral factors and candidate genes involved in the development of the defenses, the ...
Andrey Rozenberg   +5 more
wiley   +1 more source

Biological Pesticides as Viable Alternative to Synthetic Pesticides for Sustainable Agriculture and Nutrition: A Systematic Review

open access: yesJournal of Sustainable Agriculture and Environment, Volume 5, Issue 2, June 2026.
ABSTRACT The overuse of synthetic pesticides in agriculture has raised significant environmental and health concerns. Biopesticides have emerged as viable, environmentally compatible alternatives. However, recent comprehensive reviews integrating all biopesticide categories and emphasizing their contribution to synthetic‐pesticide‐free and health‐safe ...
Molalign Assefa   +5 more
wiley   +1 more source

Exploring the potentials of Sesuvium portulacastrum L. for edibility and bioremediation of saline soils

open access: yesFrontiers in Plant Science
Sesuvium portulacastrum L. is a flowering succulent halophyte in the ice plant family Aizoaceae. There are various ecotypes distributed in sandy coastlines and salty marshlands in tropical and subtropical regions with the common name of sea purslane ...
Wenbin Zhang   +8 more
doaj   +1 more source

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