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Three typical microplastics affect the germination and growth of amaranth (Amaranthus mangostanus L.) seedlings

Plant Physiology and Biochemistry 2022 44 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.

Aurang Zeb, Jianling Wang, Yuhang Lian, Jiantao Li, Aurang Zeb, Jianling Wang, Jianling Wang, Yuhang Lian, Jianling Wang, Jianling Wang, Jianling Wang, Jianling Wang, Ruiying Shi, Aurang Zeb, Jianling Wang, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Yuhang Lian, Yuhang Lian, Qi Wang Qi Wang Qi Wang Qi Wang Aurang Zeb, Aurang Zeb, Ruiying Shi, Weitao Liu, Yuhang Lian, Ruiying Shi, Ruiying Shi, Ruiying Shi, Ruiying Shi, Aurang Zeb, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Jiantao Li, Yuhang Lian, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Weitao Liu, Ruiying Shi, Yuhang Lian, Aurang Zeb, Weitao Liu, Aurang Zeb, Weitao Liu, Weitao Liu, Weitao Liu, Yuhang Lian, Weitao Liu, Yuhang Lian, Qi Wang Yuhang Lian, Aurang Zeb, Aurang Zeb, Yuhang Lian, Weitao Liu, Yuhang Lian, Aurang Zeb, Ruiying Shi, Aurang Zeb, Weitao Liu, Weitao Liu, Aurang Zeb, Yuhang Lian, Yuhang Lian, Aurang Zeb, Weitao Liu, Ruiying Shi, Yuhang Lian, Weitao Liu, Yuhang Lian, Ruiying Shi, Yuhang Lian, Yuhang Lian, Weitao Liu, Weitao Liu, Aurang Zeb, Qi Wang Qi Wang Ruiying Shi, Ruiying Shi, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Aurang Zeb, Qi Wang Qi Wang Qi Wang Qi Wang Qi Wang Aurang Zeb, Qi Wang Aurang Zeb, Yuhang Lian, Weitao Liu, Qi Wang Yuhang Lian, Yuhang Lian, Ruiying Shi, Aurang Zeb, Ruiying Shi, Qi Wang Qi Wang Qi Wang Aurang Zeb, Aurang Zeb, Jianling Wang, Qi Wang Aurang Zeb, Qi Wang Aurang Zeb, Qi Wang Aurang Zeb, Ruiying Shi, Aurang Zeb, Ruiying Shi, Ruiying Shi, Ruiying Shi, Weitao Liu, Jianling Wang, Jianling Wang, Jianling Wang, Yuhang Lian, Zeqi Zheng, Jiantao Li, Jiantao Li, Jianling Wang, Jianling Wang, Jianling Wang, Jianling Wang, Yuhang Lian, Zeqi Zheng, Zeqi Zheng, Qi Wang Jianling Wang, Yuhang Lian, Zeqi Zheng, Zeqi Zheng, Aurang Zeb, Jiantao Li, Zeqi Zheng, Weitao Liu, Jiantao Li, Jianling Wang, Jianling Wang, Jianling Wang, Jianling Wang, Jianling Wang, Jianling Wang, Aurang Zeb, Ruiying Shi, Ruiying Shi, Yuhang Lian, Ruiying Shi, Jianling Wang, Weitao Liu, Ruiying Shi, Weitao Liu, Jianling Wang, Jiantao Li, Jianling Wang, Jiantao Li, Jianling Wang, Jianling Wang, Jiantao Li, Qi Wang Yuhang Lian, Weitao Liu, Weitao Liu, Yuhang Lian, Zeqi Zheng, Zeqi Zheng, Zeqi Zheng, Zeqi Zheng, Jiantao Li, Weitao Liu, Lu Liu, Zeqi Zheng, Zeqi Zheng, Weitao Liu, Zeqi Zheng, Jiantao Li, Zeqi Zheng, Zeqi Zheng, Qi Wang Weitao Liu, Yuhang Lian, Yuhang Lian, Weitao Liu, Qi Wang

Summary

Researchers exposed amaranth seeds to three types of microplastics -- polystyrene, polyethylene, and polypropylene -- and found that the effects on germination and growth varied by plastic type, concentration, and particle size. Polyethylene and polypropylene microplastics inhibited shoot growth, while polypropylene caused the most root damage through reactive oxygen species accumulation. The study provides evidence that microplastic contamination in agricultural soils may pose risks to crop development.

Polymers

PE PP PS

Microplastics (MPs) have been a global emerging contaminant and have aroused wide public concern. Currently, it is still unknown the phytotoxicity effect of MPs on amaranth (Amaranthus mangostanus L.). This study investigated the early responses of amaranth by exposing its seeds to suspensions of polystyrene (PS), polyethylene (PE), and polypropylene (PP) MPs. We observed the effects of MPs on seed germination and growth of amaranth, especially on the oxidative damage in amaranth roots. Impacts of MPs on the germination and growth of amaranth varied with the type, concentration, and particle size of MPs. PE MPs and PP MPs inhibited the shoot extension of amaranth, while the root length under PP MPs treatment was generally shorter than that under PS MPs and PE MPs. The accumulation of HO in amaranth roots increased with the rising of MPs concentration. Compared with the control, a little number of dead cells were found in the roots of amaranth under high MPs treatment. It is noteworthy that only under 100 mg/L PP treatment, the amaranthus seedlings root cells were disorganized, due to the reactive oxygen species (ROS) damage in the roots. These findings provide essential information to assess the phytotoxicity of MPs in agricultural products, and provide insights into the underlying mechanisms of the observed phytotoxicity.

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