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Effects of microplastics and heavy metal stress on the growth and physiological characteristics of pioneer plant Avicennia marina
Marine Pollution Bulletin2025
8 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 63
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Zhenqing Dai,
Chengyong Li
Ruikun Sun,
Huifeng Xie,
Lei He,
Lei He,
Chengyong Li
Lei He,
Lei He,
Lei He,
Lei He,
Gang He,
Baoyi Tan,
M. Chen,
Huifeng Xie,
Huifeng Xie,
Baoyi Tan,
Huifeng Xie,
Ruikun Sun,
Lei He,
Chengyong Li
Zhenqing Dai,
Zijie Wu,
Zijie Wu,
Zhenqing Dai,
Huifeng Xie,
Huifeng Xie,
Zijie Wu,
Zijie Wu,
M. Chen,
Lei He,
Lei He,
Lei He,
Lei He,
Lei He,
Lei He,
Lei He,
Lei He,
Huifeng Xie,
Huifeng Xie,
Zhenqing Dai,
Zhenqing Dai,
Lei He,
Lei He,
Ruikun Sun,
Zhenqing Dai,
Lei He,
Huifeng Xie,
Lei He,
Huifeng Xie,
Lei He,
Chengyong Li
Baoyi Tan,
Lei He,
Baoyi Tan,
Lei He,
Ruikun Sun,
Lei He,
Lei He,
Zhenqing Dai,
Lei He,
M. Chen,
Zhenqing Dai,
Ruikun Sun,
Ruikun Sun,
Ruikun Sun,
Lei He,
Lei He,
Lei He,
Lei He,
M. Chen,
Zhenqing Dai,
Zhenqing Dai,
Lei He,
Lei He,
Zhenqing Dai,
Chengyong Li
Zijie Wu,
Zhenqing Dai,
Ruikun Sun,
Zijie Wu,
Lei He,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Huifeng Xie,
Zhenqing Dai,
Ruikun Sun,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Chengyong Li
Ruikun Sun,
Lei He,
Lei He,
Zijie Wu,
Huifeng Xie,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Zijie Wu,
Zhenqing Dai,
Zijie Wu,
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Ruikun Sun,
Ruikun Sun,
Zijie Wu,
Zhenqing Dai,
Ruikun Sun,
Ruikun Sun,
Chengyong Li
Zhenqing Dai,
Chengyong Li
Chengyong Li
Chengyong Li
Ruikun Sun,
Zhenqing Dai,
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Zhenqing Dai,
Zhenqing Dai,
Zhenqing Dai,
Ruikun Sun,
Zhenqing Dai,
Lei He,
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Baoyi Tan,
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Baoyi Tan,
Ruikun Sun,
Chengyong Li
Chengyong Li
Zhenqing Dai,
Zhenqing Dai,
Lei He,
Chengyong Li
Chengyong Li
Zhenqing Dai,
Ruikun Sun,
Chengyong Li
Chengyong Li
Chengyong Li
Lei He,
Chengyong Li
Zhenqing Dai,
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Chengyong Li
Summary
Researchers studied how mangrove plants respond to combined pollution from microplastics and heavy metals at levels found in the environment. The combination caused more oxidative stress and growth problems than either pollutant alone, disrupting the plants' defense systems. Since mangroves protect coastlines and filter water for coastal communities, damage to these ecosystems from microplastic-heavy metal pollution could have indirect effects on human well-being.
Mangrove plants grow in muddy and swampy areas where the land and sea meet and are threatened by various pollutants. In the present study, Avicennia marina (Forsk.) Vierh. (A.marina), the pioneer species in mangrove, was selected as model plant. A composite pollution model of microplastics (polypropylene [PP], polyethylene [PE], and polyamide [PA]) and multiple heavy metals (Cr, Cu, Pb, Zn, Cd, Mn, Co, Hg, As, and Ni) at environmental concentrations was constructed to explore the effects of dual stress on seedling growth and metabolism. Over the 65-days co-exposure, no lethal effects were observed among any contaminant treatments. In contrast, the PP and heavy metal (PP) and PA and heavy metal (PA) groups promoted the growth and development of the seedlings. The PP and PA treatments increased the soluble protein content of seedling leaves to 4.4 and 3.1 times of the heavy metal (H) treatment, respectively. Free proline content was approximately 58 % higher in the PP treatment group than in the H group. PE and heavy metal (PE) exposure significantly inhibited enzyme activities related to nitrogen uptake and transformation in the root and leaf tissues of seedlings. In addition, higher concentrations and frequencies of reactive oxygen species accumulation were observed in root tissues of seedlings grown in sediment added PE and PA. These findings provide critical evidences to elucidate the toxicological effects of microplastics and heavy metals combined stress on mangrove plant.