Sublethal concentration of emamectin benzoate inhibits the growth of gypsy moth by inducing digestive dysfunction and nutrient metabolism disorder DOI
Zhe Xu, Jianyang Bai, Lu Li

et al.

Pest Management Science, Journal Year: 2021, Volume and Issue: 77(9), P. 4073 - 4083

Published: April 28, 2021

Abstract BACKGROUND Gypsy moth ( Lymantria dispar ) is one of the most important pests in world. Emamectin benzoate (EMB) widely used control agricultural and forestry pests. Here, we explored sublethal effects EMB on gypsy moths order to better understand toxicological mechanism EMB. RESULTS The concentration exposure significantly decreased larvae body weight. To further explore mechanism, indicators related digestion nutrient metabolism were detected. results showed that caused midgut damage, reduced activities digestive enzymes changed content sugar amino acids. Moreover, expression insulin/phosphoinositide‐3‐kinase (PI3K)/forkhead box protein O (FoxO) pathway metabolism‐related genes was abnormal. insulin receptor (InR), chico, PI3K, kinase B (Akt) reduced, phosphatase tensin homologue (PTEN) FoxO increased. glycogen phosphorylase (GP) upregulation synthase (GS), trehalase (TRE) trehalose‐phosphate (TPS) downregulation. All indicated inhibits growth by inducing injury, dysfunction disorder. In addition, injury may be apoptosis or a collateral effect damage other tissues, more extensive deeper research still needed investigate detailed mechanism. CONCLUSION Our finding strengthens understanding EMB, provides theoretical basis for application prevention moth.

Language: Английский

Starvation Induces Upregulation of Monocarboxylate Transport in Glial Cells at the Drosophila Blood–Brain Barrier DOI
Andrés González‐Gutiérrez, Jorge Gaete,

Andrés Esparza

et al.

Glia, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

ABSTRACT Living organisms can sense and adapt to constant changes in food availability. Maintaining a homeostatic supply of energy molecules is crucial for animal survival normal organ functioning, particularly the brain, due its high‐energy demands. However, mechanisms underlying brain adaptive responses availability have not been completely established. The nervous system separated from rest body by physical barrier called blood–brain (BBB). In addition structural role, BBB regulates transport metabolites nutrients into system. This regulation achieved through that control nutrients, including glucose monocarboxylates such as lactate, pyruvate, ketone bodies. Drosophila melanogaster , carbohydrate transporters increase their expression glial cells response starvation. or activity monocarboxylate (dMCTs) at yet reported. Here, we show neuronal ATP levels remain unaffected despite reduced energy‐related hemolymph larvae during Simultaneously, lactate beta‐hydroxybutyrate increases BBB. Using genetically encoded sensors, identified Yarqay proton‐coupled transporter whose upregulated subperineurial glia Our findings reveal novel component starvation: across BBB, mediated Yarqay, dMCT enriched

Language: Английский

Citations

0

Role of glycogen in development and adult fitness in Drosophila DOI Creative Commons
Takayuki Yamada,

Okiko Habara,

Yuka Yoshii

et al.

Development, Journal Year: 2019, Volume and Issue: unknown

Published: Jan. 1, 2019

The polysaccharide glycogen is an evolutionarily conserved storage form of glucose. However, the physiological significance metabolism on homeostatic control throughout animal life cycle remains incomplete. Here, we report a Drosophila fruit fly that defective for metabolism. Null mutants synthase (GlyS) and phosphorylase (GlyP) displayed growth defects larval lethality, indicating plays crucial role in development. Unexpectedly, however, certain population larvae developed into adults with normal morphology. Semi-lethality during period can be attributed to presence circulating sugar trehalose. Homozygous produced offspring, stored oocytes dispensable embryogenesis. GlyS GlyP showed distinct metabolic levels sugars triglycerides stage-specific manner. In adults, as energy reserve not physical fitness lifespan under nourished conditions, but becomes important stress conditions. This study provides fundamental understanding requirements fly.

Language: Английский

Citations

33

A developmental checkpoint directs metabolic remodelling as a strategy against starvation in Drosophila DOI
Takayuki Yamada, Ken‐ichi Hironaka,

Okiko Habara

et al.

Nature Metabolism, Journal Year: 2020, Volume and Issue: 2(10), P. 1096 - 1112

Published: Oct. 12, 2020

Language: Английский

Citations

29

The Role of Muscle in Insect Energy Homeostasis DOI Creative Commons
Heidi Bretscher, Michael B. O’Connor

Frontiers in Physiology, Journal Year: 2020, Volume and Issue: 11

Published: Oct. 22, 2020

Maintaining energy homeostasis is critical for ensuring proper growth and maximizing survival potential of all organisms. Here we review the role somatic muscle in regulating insects. The not only a large consumer energy, it also plays crucial metabolic signaling pathways stores organism. We examine required to supply with as well muscle-derived signals that regulate homeostasis.

Language: Английский

Citations

29

Sublethal concentration of emamectin benzoate inhibits the growth of gypsy moth by inducing digestive dysfunction and nutrient metabolism disorder DOI
Zhe Xu, Jianyang Bai, Lu Li

et al.

Pest Management Science, Journal Year: 2021, Volume and Issue: 77(9), P. 4073 - 4083

Published: April 28, 2021

Abstract BACKGROUND Gypsy moth ( Lymantria dispar ) is one of the most important pests in world. Emamectin benzoate (EMB) widely used control agricultural and forestry pests. Here, we explored sublethal effects EMB on gypsy moths order to better understand toxicological mechanism EMB. RESULTS The concentration exposure significantly decreased larvae body weight. To further explore mechanism, indicators related digestion nutrient metabolism were detected. results showed that caused midgut damage, reduced activities digestive enzymes changed content sugar amino acids. Moreover, expression insulin/phosphoinositide‐3‐kinase (PI3K)/forkhead box protein O (FoxO) pathway metabolism‐related genes was abnormal. insulin receptor (InR), chico, PI3K, kinase B (Akt) reduced, phosphatase tensin homologue (PTEN) FoxO increased. glycogen phosphorylase (GP) upregulation synthase (GS), trehalase (TRE) trehalose‐phosphate (TPS) downregulation. All indicated inhibits growth by inducing injury, dysfunction disorder. In addition, injury may be apoptosis or a collateral effect damage other tissues, more extensive deeper research still needed investigate detailed mechanism. CONCLUSION Our finding strengthens understanding EMB, provides theoretical basis for application prevention moth.

Language: Английский

Citations

27