期刊
JOURNAL OF EXPERIMENTAL BIOLOGY
卷 221, 期 9, 页码 -出版社
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.174482
关键词
Tropical drosophilid; Developmental acclimation; Adult acclimation; Heat acclimation; Humidity acclimation
类别
Insects in tropical wet or dry seasons are likely to cope with starvation stress through plastic changes (developmental as well as adult acclimation) in energy metabolites. Control and experimental groups of Zaprionus indianus flies were reared under wet or dry conditions, but adults were acclimated at different thermal or humidity conditions. Adult flies of the control group were acclimated at 27 degrees C and low (50%) or high (60%) relative humidity (RH). For experimental groups, adult flies were acclimated at 32 degrees C for 1 to 6 days and under low (40%) or high (70%) RH. For humidity acclimation, adult flies were acclimated at 27 degrees C but under low (40%) or high (70%) RH for 1 to 6 days. Plastic changes in experimental groups as compared with the control group (developmental as well as adult acclimation) revealed significant accumulation of body lipids owing to thermal or humidity acclimation of wet season flies, but low humidity acclimation did not change the level of body lipids in dry season flies. Starvation resistance and body lipids were higher in the males of dry season flies but in the females of wet season flies. Adults acclimated under different thermal or humidity conditions exhibited changes in the rate of utilization of body lipids, carbohydrates and proteins. Adult acclimation of wet or dry season flies revealed plastic changes in mean daily fecundity; and a reduction in fecundity under starvation. Thus, thermal or humidity acclimation of adults revealed plastic changes in energy metabolites to support starvation resistance of wet or dry season flies.
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