Publications by authors named "Chuan-Lei Dong"

Article Synopsis
  • Host hemolymph serves as a crucial environment for endoparasitoid growth, particularly for Chilo suppressalis larvae, which respond to parasitism by generating many granulocytes.
  • High temperatures hinder these granulocytes' functions, causing apoptosis and affecting other immune responses by activating apoptotic pathways in cells like prohemocytes.
  • The study identifies Cscaspase-8 in C. suppressalis, showing that while its expression increases under stress from heat and parasitism, silencing this gene does not significantly impact larval survival, although it causes developmental delays in Cotesia chilonis larvae, enhancing our understanding of insect apoptosis regulation.
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Apoptosis is a form of programmed cell death (PCD) that is largely triggered by caspases through both the mitochondria-dependent and mitochondria-independent pathways. The rice stem borer, Chilo suppressalis, serves as an economically important pest of rice, which is often suffered by temperature and parasitic stress under natural conditions. In the present study, effector Cscaspase-3 encoding caspase was obtained from the rice pest Chilo suppressalis.

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Heat shock factor 1 (HSF1) functions to maintain cellular and organismal homeostasis by regulating the expression of target genes, including those encoding heat shock proteins (HSPs). In the present study, the gene encoding HSF1 was cloned from the rice pest Chilo suppressalis, and designated Cshsf1. The deduced protein product, CsHSF1, contained conserved domains typical of the HSF1 family, including a DNA-binding domain, two hydrophobic heptad repeat domains, and a C-terminal transactivation domain.

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Chilo suppressalis Walker is a devastating pest of rice in Asia and exhibits facultative diapause in the larval stage. Most prior experiments on diapausing and non-diapausing C. suppressalis were conducted in the laboratory.

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Small heat shock proteins (sHSPs) function as ATP-independent chaperones that preserve cellular proteostasis under stressful conditions. In this study, Cshsp19.0, which encodes a new small heat shock protein, was isolated and characterized from Chilo suppressalis (Walker) to better understand the contribution of sHSPs to insect development and stress tolerance.

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