Basic research on application of microbial composite agents for rapid volume and weight reduction of heavy metal hyperaccumulator plants

doi:10.14088/j.cnki.issn0439-8114.2020.05.014

Abstract

Abstract: ： In order to solve the key technical problems of quickly process large quantities of hyperaccumulator plant bodies at low cost after environmental bioremediation,a composite agent consisting of Bacillus subtilis and Bacillus licheniformis, and plants such as Indian mustard （Brassica juncea） with strong enrichment ability for heavy metals were used in fundamental research of reducing the volume and weight of hyperaccumulator plants. The experiments result showed that the volume-reducing rate of hyperaccumulator plants treated with microbial vomposite agents reached 96% with 23 percentage point more than the control group. And the degradation rates of cellulose, hemicellulose and lignin reached 69.06%, 80.75% and 28.59%,with 27.35,14.75,5.49 percentage point more than the control group. The experimental results show that the microbial composite agents have significant volume reduction and weight reduction abilities for heavy metal hyperaccumulators plants and potential application prospects.

Key words: microbial composite agents, heavy metal, hyperaccumulator plant, volume reduction, weight reduction

CLC Number:

X705

LIANG Zhu-ming, LUO Xue-gang. Basic research on application of microbial composite agents for rapid volume and weight reduction of heavy metal hyperaccumulator plants[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(5): 72-77.

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