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Regulation of Insect Hormones in Different Types of Diapause in Chilo Partellus (Swinhoe).
J Exp Zool A Ecol Integr Physiol
November 2024
Department of Zoology and Environmental Sciences, Punjabi University, Patiala, India.
Maize stem borer, Chilo partellus (Swinhoe) is a key pest of maize and sorghum. It undergoes both in estivation and hibernation depending on prevailing environmental conditions. Present investigations were aimed to decipher the regulation of ecdysone, 20-hydroxyecdysone (20E) and juvenile hormone III (JH III) during different stages (prediapause, diapause and post-diapause/pupae) of hibernation and estivation as compared to counterpart nondiapause C.
View Article and Find Full Text PDFLipid composition differs in diapause and nondiapause states of spotted stem borer, Chilo partellus.
Comp Biochem Physiol B Biochem Mol Biol
August 2024
Department of Zoology and Environmental Sciences, Punjabi University, Patiala, Punjab, India.
Spotted stem borer, Chilo partellus, undergoes larval diapause (hibernation and aestivation), and depends on the food reserve accumulated during feeding stage for its survival. Lipids are the primary source of energy during diapause, and essential for different cellular, biochemical and physiological functions. However, there is no information on lipid and lipophilic compound contents during different stages of hibernation, aestivation and nondiapause in C.
View Article and Find Full Text PDFThe amino acid and lipophilic profiles of Chilo partellus (Swinhoe) larvae fluctuate with diapause.
J Exp Zool A Ecol Integr Physiol
August 2021
Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
The Chilo partellus (Crambidae: Lepidoptera) larvae undergoes both hibernation and estivation in India. Although, much has been done on reproductive physiological aspects, little is known about biochemical changes happening during hibernation and estivation in C. partellus.
View Article and Find Full Text PDFGenetic regulation of diapause and associated traits in Chilo partellus (Swinhoe).
Sci Rep
February 2020
ICRISAT, Patancheru, 502324, Telangana, India.
Article Synopsis
- Diapause is a state that insects enter to survive unfavorable conditions, and studying its regulation is crucial for understanding ecological adaptation, particularly in the insect Chilo partellus.
- The research involved crossing different strains of C. partellus, including hibernating and aestivating ones, to analyze traits like fecundity, survival rates, and diapause induction and termination.
- Findings revealed that the aestivating strain enhanced overall reproductive success and survival, while not observing a significant diapause response in the nondiapause strain; also, genetic dominance played a key role in these traits based on the strains' diapause history.
Factors responsible for estivation in spotted stem borer, Chilo partellus (Swinhoe).
J Exp Zool A Ecol Integr Physiol
July 2019
Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Diapause is an important adaptive trait in certain groups of insects at a particular stage, which contribute in controlling insect ecology, phenology, and physiology. Considering the importance of various factors in appropriate combinations, we studied effects of different temperature and photoperiod conditions on larval morphometrics, development, induction, and termination of estivation, and overall mortality due to estivation in Chilo partellus (Swinhoe). Weight, length, and head capsule width of C.
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