Transgenerational effects of thermal stress on reproductive physiology of fall armyworm, Spodoptera frugiperda

Reshma, Ramankutty; Sagar, D.; Subramanian, S.; Kalia, Vinay; Kumar, Hemant; Muthusamy, Vignesh

doi:10.1007/s10340-023-01660-2

Cited by 4 publications

(2 citation statements)

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“…Our data was consistent with other studies on other species like Frankliniella occidentalis , Drosophila serrata , and Aphidius ervi, which showed that, the impact of thermal stress on F 1 generation was evident at younger stage and lower at the matured stage 37 – 39 . whereas, a study on S. frugiperda reported that, the persistent effect can be observed up to F 2 generation 36 . Cell damage was evident when Saccharomyces cerevisiae was exposed to higher temperature, resulting reduction in ethanol production 41 .…”

Section: Discussionmentioning

confidence: 89%

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Effect of temperature on the biological parameters of pink bollworm, Pectinophora gossypiella Saunders (Lepidoptera: Gelechiidae)

Nagaraju,

Mohan,

Keerthi

et al. 2024

Sci Rep

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Pink bollworm (PBW) Pectinophora gossypiella is an important pest cotton worldwide. There are multiple factors which determines the occurrence and distribution of P. gossypiella across different cotton growing regions of the world, and one such key factor is ‘temperature’. The aim was to analyze the life history traits of PBW across varying temperature conditions. We systematically explored the biological and demographic parameters of P. gossypiella at five distinct temperatures; 20, 25, 30, 35 and 40 ± 1 °C maintaining a photoperiod of LD 16:8 h. The results revealed that the total developmental period of PBW shortens with rising temperatures, and the highest larval survival rates were observed between 30 °C and 35 °C, reaching 86.66% and 80.67%, respectively. Moreover, significant impacts were observed as the pupal weight, percent mating success, and fecundity exhibited higher values at 30 °C and 35 °C. Conversely, percent egg hatching, larval survival, and adult emergence were notably lower at 20 °C and 40 °C, respectively. Adult longevity decreased with rising temperatures, with females outliving males across all treatments. Notably, thermal stress had a persistent effect on the F1 generation, significantly affecting immature stages (egg and larvae), while its impact on reproductive potential was minimal. These findings offer valuable insights for predicting the population dynamics of P. gossypiella at the field level and developing climate-resilient management strategies in cotton.

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Section: Discussionmentioning

confidence: 89%

“…The transgenerational effect of thermal stress on the biological parameters has been studied in some important lepidopteran insects like S. litura , S. frugiperda , Helicoverpa armigera and others 34 – 36 . However, no information is available on P. gossypiella, in this regard.…”

Section: Discussionmentioning

confidence: 99%