Paper Title
Effect of Piper longum on cold-Induced Stress in Drosophila melanogaster
Article Identifiers
Authors
Preethi M A , Dr. V Shakunthala
Keywords
D.melanogaster, thermal stress, cold resistance, chill tolerance, Piper longum.
Abstract
Insect habitats are significantly influenced by thermal constraints, with a strong correlation observed between latitudinal and elevational distributions and various indices of cold resistance. While some insects can endure sub-freezing temperatures, most succumb at temperatures above freezing due to factors unrelated to ice formation. The term "chill tolerance" encompasses a complex set of traits that enable insects to survive and function at relatively mild cold temperatures. From an evolutionary biology perspective, coping with harsh environmental conditions is a major challenge. Extreme conditions impose physiological stresses, leading to selective pressure favoring stress tolerance. Temperature is a critical abiotic factor for ectothermic animals, especially insects, potentially causing heat or cold stress. Different species thrive within specific temperature ranges conducive to their generational success. Adult Drosophila melanogaster experience a knockdown, or cold coma, at low temperatures, losing their ability to move and feed. Upon returning to a higher temperature, adults gradually resume normal activities, and cold treatment is often used as an alternative to CO2 or ether anesthesia. Cold exposure causes sudden structural alterations in proteins and cell membranes, leading to chill injury. Despite the hemolymph of Drosophila melanogaster remaining supercooled at temperatures as low as -20°C, individuals may die after an hour of exposure to -6 or -8°C. Rapid cold-hardening (RCH), a brief pre-exposure to low temperature, can temporarily enhance cold shock tolerance and reduce severe chill injury. The present study investigates the thermal stress response in D. melanogaster treated with Piper longum powder.
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How To Cite (APA)
Preethi M A & Dr. V Shakunthala (July-2024). Effect of Piper longum on cold-Induced Stress in Drosophila melanogaster. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 9(7), d122-d131. https://ijnrd.org/papers/IJNRD2407310.pdf
Issue
Volume 9 Issue 7, July-2024
Pages : d122-d131
Other Publication Details
Paper Reg. ID: IJNRD_225463
Published Paper Id: IJNRD2407310
Downloads: 000121975
Research Area: Life SciencesÂ
Country: Mysore, karnataka, India
Published Paper PDF: https://ijnrd.org/papers/IJNRD2407310.pdf
Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD2407310
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