Browsing Norsk institutt for vannforskning by Author "Iguchi, Taisen"
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Ecdysone Receptor Agonism Leading to Lethal Molting Disruption in Arthropods: Review and Adverse Outcome Pathway Development
Song, You; Villeneuve, Daniel L.; Toyota, Kenji; Iguchi, Taisen; Tollefsen, Knut Erik (Journal article; Peer reviewed, 2017)Molting is critical for growth, development, reproduction and survival in arthropods. Complex neuroendocrine pathways are involved in the regulation of molting and may potentially become targets of environmental endocrine ... -
Ecdysteroid and juvenile hormone biosynthesis, receptors and their signaling in the freshwater microcrustacean Daphnia
Miyakawa, Hitoshi; Sato, Tomomi; Song, You; Tollefsen, Knut Erik; Iguchi, Taisen (Journal article; Peer reviewed, 2018)The two essential insect hormones, ecdysteroids and juvenile hormones, are possessed not only by insects, but also widely by arthropods, and regulate various developmental and physiological processes. In contrast to the ... -
Juvenile hormone synthesis and signaling disruption triggering male offspring induction and population decline in cladocerans (water flea): Review and adverse outcome pathway development
Toyota, Kenji; Watanabe, Haruna; Hirano, Masashi; Abe, Ryoko; Miyakawa, Hitoshi; Song, You; Sato, Tomomi; Miyagawa, Shinichi; Tollefsen, Knut Erik; Yamamoto, Hiroshi; Tatarazako, Norihisa; Iguchi, Taisen (Peer reviewed; Journal article, 2021)Juvenile hormone (JH) are a family of multifunctional hormones regulating larval development, molting, metamorphosis, reproduction, and phenotypic plasticity in arthropods. Based on its importance in arthropod life histories, ... -
Release of chitobiase as an indicator of potential molting disruption in juvenile Daphnia magna exposed to the ecdysone receptor agonist 20-hydroxyecdysone
Song, You; Evenseth, Linn Mari; Iguchi, Taisen; Tollefsen, Knut Erik (Journal article; Peer reviewed, 2017)During arthropod molting, the old exoskeleton is degraded and recycled by the molting fluid. Chitobiase, a major chitinolytic enzyme in the molting fluid, has been widely used as a biomarker to indicate endocrine disruption ... -
Whole-Organism Transcriptomic Analysis Provides Mechanistic Insight into the Acute Toxicity of Emamectin Benzoate in Daphnia magna
Song, You; Rundberget, Thomas; Evenseth, Linn Mari; Xie, Li; Gomes, Tania; Høgåsen, Tore; Iguchi, Taisen; Tollefsen, Knut Erik (Journal article; Peer reviewed, 2016)Emamectin benzoate (EMB) is an antisea lice chemical widely used in the aquaculture that may also unintentionally affect nontarget crustaceans in the environment. Although the adverse effects of this compound are well ...