Polyvinyl chloride microplastics and drought co-exposure alter rice growth by affecting metabolomics and proteomics
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View abstract on PubMed
Summary
This summary is machine-generated.Combined microplastic (PV) and drought stress severely impact rice crops, decreasing yield and altering plant metabolism and protein profiles. Microplastic toxicity is amplified when combined with drought.
Area Of Science
- Agricultural Science
- Environmental Science
- Plant Biology
Background
- Microplastics (PV) and drought stress pose significant threats to crop production by altering soil environments.
- The combined effects of microplastic and drought stress on crop growth are not well understood.
- Investigating multi-stress responses in crops is crucial for understanding agricultural resilience.
Purpose Of The Study
- To investigate the combined effects of polyvinylchloride microplastic (PV) and drought (D) on rice growth and physiology.
- To elucidate the molecular mechanisms underlying multi-stress responses in rice using proteomics and metabolomics.
- To compare the impacts of individual and combined PV and D treatments on rice varieties Hanyou73 and Q280.
Main Methods
- Proteomics and metabolomic analysis were employed to study rice response to PV and D treatments.
- Rice varieties Hanyou73 and Q280 were subjected to individual and combined PV and D stresses.
- Measurements included chlorophyll content, antioxidant enzyme activities, grain yield, and metabolic/proteomic profiling.
Main Results
- All treatments negatively affected chlorophyll, antioxidant enzymes, and grain composition.
- Grain yield decreased under all treatments except PV alone, with DPV showing the lowest yield.
- DPV significantly altered metabolisms including glycerophospholipid and tryptophan metabolism, with notable changes in soluble sugar content in Q280.
Conclusions
- Microplastic (PV) and drought (D) stress, individually and combined, induce extensive alterations in rice leaf proteomics and plant metabolome.
- Combined PV and D treatments exacerbate microplastic toxicity, leading to more severe adverse effects on rice plants.
- Understanding these multi-stress interactions is vital for developing strategies to mitigate crop losses in changing environments.
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