Insight into the relationship between metabolic enzymes and oxadiazon degradation in Oryza sativa for reducing environmental risks

Chen, Zhao Jie; Qu, Ya Nan; Li, Si Ying; Wang, Hao Wen; Ji, Chun Hong; Shi, Xu Zhen; Yang, Hong; Li, Xue Sheng

doi:10.1016/j.ecoenv.2024.116242

Ecotoxicology and Environmental Safety

2024

DOI: 10.1016/j.ecoenv.2024.116242

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Insight into the relationship between metabolic enzymes and oxadiazon degradation in Oryza sativa for reducing environmental risks

Zhao Jie Chen,

Ya Nan Qu,

Si Ying Li

et al.

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2024

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Adaptive Strategies and Underlying Response Mechanisms of Ciliates to Salinity Change with Note on Fluctuation Properties

Li,

Yang,

et al. 2024

Microorganisms

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The adaptability of marine organisms to changes in salinity has been a significant research area under global climate change. However, the underlying mechanisms of this adaptability remain a debated subject. We hypothesize that neglecting salinity fluctuation properties is a key contributing factor to the controversy. The ciliate Euplotes vannus was used as the model organism, with two salinity fluctuation period sets: acute (24 h) and chronic (336 h). We examined its population growth dynamics and energy metabolism parameters following exposure to salinity levels from 15‰ to 50‰. The carrying capacity (K) decreased with increasing salinity under both acute and chronic stresses. The intrinsic growth rate (r) decreased with increasing salinity under acute stress. Under chronic stress, the r initially increased with stress intensity before decreasing when salinity exceeded 40‰. Overall, glycogen and lipid content decreased with stress increasing and were significantly higher in the acute stress set compared to the chronic one. Both hypotonic and hypertonic stresses enhanced the activities of metabolic enzymes. A trade-off between survival and reproduction was observed, prioritizing survival under acute stress. Under chronic stress, the weight on reproduction increased in significance. In conclusion, the tested ciliates adopted an r-strategy in response to salinity stress. The trade-off between reproduction and survival is a significant biological response mechanism varying with salinity fluctuation properties.

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Adaptive Strategies and Underlying Response Mechanisms of Ciliates to Salinity Change with Note on Fluctuation Properties

Li,

Yang,

et al. 2024

Microorganisms

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show abstract

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Insight into the relationship between metabolic enzymes and oxadiazon degradation in Oryza sativa for reducing environmental risks

Cited by 1 publication

References 40 publications

Adaptive Strategies and Underlying Response Mechanisms of Ciliates to Salinity Change with Note on Fluctuation Properties

Adaptive Strategies and Underlying Response Mechanisms of Ciliates to Salinity Change with Note on Fluctuation Properties

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