Physiological and Molecular Analyses of Low-Salinity Stress Response in the Cuttlefish (Sepia pharaonis) Juveniles

Xin, Hongwei; Wu, Kunlan; Yuan, Yimeng; Zhao, Yun; Song, Weiwei; Wang, Chunlin; Mu, Changkao; Li, Ronghua

doi:10.1007/s11802-022-4880-y

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…Appropriate concentration of CaCl 2 Treatment can significantly reduce the chilling injury index, leaf relative conductivity and MDA accumulation of cotton seedlings, improve the activity of antioxidant enzymes and the content of osmoregulation substances, and effectively reduce the damage of low temperature stress to cotton seedlings ( Chen and Wang, 2004 ). In cotton production, chitosan can protect the membrane system under low temperature stress and improve its low temperature tolerance by increasing the activity of antioxidant enzymes and the content of soluble sugar, soluble protein and proline ( Xin, 2015 ). Under low temperature conditions, exogenous NO can resist the damage of cell membrane peroxidation by promoting the activity and content of SOD, POD and CAT antioxidant enzymes, and thus alleviate the damage of cold stress ( Li et al., 2011 ).…”

Section: Discussionmentioning

confidence: 99%

Low temperature decreased insecticidal protein contents of cotton and its physiological mechanism

et al. 2023

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Low temperature delayed cotton growth, increased abscission of reproductive organs, and seriously reduced quality and yield. Moreover, failed or unstable performance of insecticidal resistance due to adverse environments have been reported. In order to study the impact of low temperature on the insecticidal protein contents at square stage in Bacillus Thuringenesis (Bt) transgenic cotton, different temperature regimes and durations were imposed on two Bt cotton cultivars, Sikang1 (the conventional cultivar, SK1) and Sikang3 (the hybrid cultivar, SK3). Low temperature stress exhibited a significant inhibitory effect on insecticidal protein expression in squares and leaves of Bt transgenic cotton plants, with insecticidal protein contents decreased up to 30% with decreasing temperature. In addition, the threshold temperature resulting in significant reduction of insecticidal protein contents symbolized a rising trend as stress duration extended, together with a greater reduction observed. Thus, at square stage, the detrimental influence of low temperature on Bt protein contents was closely related to the low temperature level and duration. The square Bt protein content was positively correlated with leaf Bt protein content, but was more sensitive to low temperature. Across the whole treatment duration in both years, square Bt protein level was significantly negatively correlated with malondialdehyde (MDA) contents, as well as the activities of catalase (CAT) and superoxide dismutase (SOD), indicating the negative effect of cold induced oxidative stress on Bt protein contents. The reduced Bt protein contents under low temperature were also related to altered N metabolism. Glutamate oxaloacetate transaminase (GOT) and glutamate pyruvate transaminase (GPT) activities, as well as soluble protein contents in squares reduced, and greater reduction was recorded with decreasing temperature. In contrast, the free amino acid contents, and peptidase and protease activities increased, and greater elevation was noted with decreasing temperature. These results suggested in Bt cotton production, it is necessary to be alert to low temperature disasters that may last for more than 24 hours and lower than 15-17°C during the square stage, which may lead to reduced insecticidal resistance causing serious economic losses.

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Section: Discussionmentioning

confidence: 99%

Low temperature decreased insecticidal protein contents of cotton and its physiological mechanism

et al. 2023

View full text Add to dashboard Cite

show abstract

Physiological and Molecular Analyses of Low-Salinity Stress Response in the Cuttlefish (Sepia pharaonis) Juveniles

Cited by 2 publications

References 26 publications

Low temperature decreased insecticidal protein contents of cotton and its physiological mechanism

Low temperature decreased insecticidal protein contents of cotton and its physiological mechanism

Broadening the adaptation of Sepia pharaonis to low salinity through a graded salinity reduction approach

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