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Brassinolide as potential rescue agent for Pinellia ternata grown under microplastic condition: Insights into their modulatory role on photosynthesis, redox homeostasis, and AsA-GSH cycling

Journal of Hazardous Materials 2024 31 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Dan Zhang, Lulu Zhang, Kuizhi Zhai, Yusui Duan, Yusui Duan, Yusui Duan, Bingnan Zhao, Yusui Duan, Lulu Zhang, Wansheng Xia, Yusui Duan, Wansheng Xia, Bingnan Zhao, Bingnan Zhao, Wansheng Xia, Yusui Duan, Yusui Duan, Kuizhi Zhai, Yusui Duan, Yusui Duan, Yusui Duan, Yusui Duan, Wansheng Xia, Yusui Duan, Bingnan Zhao, Bingnan Zhao, Yusui Duan, Yusui Duan, Yusui Duan, Dan Zhang, Chengwei Yuan, Chengwei Yuan, Lulu Zhang, Lulu Zhang, Bingnan Zhao, Yusui Duan, Wansheng Xia, Lulu Zhang, Wansheng Xia, Yusui Duan, Yusui Duan, Yusui Duan, Wansheng Xia, Bingnan Zhao, Yusui Duan, Bingnan Zhao, Wansheng Xia, Wansheng Xia, Wansheng Xia, Kuizhi Zhai, Wansheng Xia, Kuizhi Zhai, Kuizhi Zhai, Yusui Duan, Kuizhi Zhai, Bingnan Zhao, Yusui Duan, Yusui Duan, Bingnan Zhao, Bingnan Zhao, Wansheng Xia, Bingnan Zhao, Lulu Zhang, Kuizhi Zhai, Yusui Duan, Wansheng Xia, Bingnan Zhao, Bingnan Zhao, Bingnan Zhao, Bingnan Zhao, Wansheng Xia, Wansheng Xia, Wansheng Xia, Wansheng Xia, Kuizhi Zhai, Wansheng Xia, Wansheng Xia, Jianzhou Chu, Bingnan Zhao, Wansheng Xia, Lulu Zhang, Lulu Zhang, Wansheng Xia, Wansheng Xia, Lulu Zhang, Jianzhou Chu, Bingnan Zhao, Lulu Zhang, Bingnan Zhao, Jianzhou Chu, Bingnan Zhao, Lulu Zhang, Wansheng Xia, Wansheng Xia, Wansheng Xia, Wansheng Xia, Bingnan Zhao, Bingnan Zhao, Bingnan Zhao, Bingnan Zhao, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Kuizhi Zhai, Yusui Duan, Yusui Duan, Kuizhi Zhai, Kuizhi Zhai, Kuizhi Zhai, Kuizhi Zhai, Xiaoqin Yao Xiaoqin Yao Lulu Zhang, Xiaoqin Yao Yusui Duan, Kuizhi Zhai, Yusui Duan, Lulu Zhang, Kuizhi Zhai, Kuizhi Zhai, Kuizhi Zhai, Kuizhi Zhai, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Wansheng Xia, Bingnan Zhao, Jianzhou Chu, Wansheng Xia, Jianzhou Chu, Bingnan Zhao, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Xiaoqin Yao Xiaoqin Yao Xiaoqin Yao Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Xiaoqin Yao Xiaoqin Yao Xiaoqin Yao Jianzhou Chu, Xiaoqin Yao Xiaoqin Yao Xiaoqin Yao Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Jianzhou Chu, Xiaoqin Yao

Summary

Researchers found that microplastic stress suppresses growth and photosynthesis in the medicinal plant Pinellia ternata while paradoxically boosting secondary metabolites, and that brassinolide treatment restores plant height and biomass by improving photosynthesis, antioxidant enzyme activity, and the ascorbate-glutathione cycle.

Microplastic (MP), as a new pollutant, not only affects the growth and development of plants but also may affect the secondary metabolites of plants. The anti-tumor role of Pinellia ternata is related to secondary metabolites. The role of brassinolide (BR) in regulating plant resistance is currently one of the research hotspots. The paper mainly explores the regulation of BR on growth and physiology of Pinellia ternata under MP stress. The experimental design includes two levels of MP (0, 1%) and two levels of BR (0, 0.1 mg/L). MP led to a marked reduction in plant height (15.0%), Fv/Fm (3.2%), SOD and APX activity (15.0%, 5.1%), whereas induced an evident raise in the rate of O· production (29.6%) and GSH content (4.4%), as well as flavonoids (6.8%), alkaloids (75%), and β-sitosterol (26.5%) contents. Under MP addition, BR supply significantly increased plant height (15.7%), aboveground and underground biomass (16.1%, 10.3%), carotenoid and GSH content (11.8%, 4.2%), Fv/Fm (2.9%), and activities of SOD, GR, and MDHAR (32.2%, 21.08%, 20.9%). These results indicate that MP suppresses the growth of P. ternata, although it promotes secondary metabolism. BR can alleviate the inhibitory effect of MP on growth by improving photosynthesis, redox homeostasis, and the AsA-GSH cycle.

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