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摘要
从多环芳烃的降解原理出发,比较了木霉与其他微生物降解产物,发现木霉兼有细菌与木质素真菌的特点。通过对比木霉与其他微生物的多环芳烃降解率与优势,发现木霉对高分子多环芳烃耐受性强、降解率高,对底物特异性要求低,可承受高浓度重金属、氰化物、农药等多种污染物胁迫,短期内对多环芳烃降解效率高、植入强且与植物协同修复作用好。木霉的上述特性对土壤的生物修复有较好的应用潜力,后期还需深化木霉对PAHs机理探究并优化其应用。
Abstract
Based on the degradation principle of polycyclic aromatic hydrocarbons (PAHs),the degradation products by trichoderma and other microorganisms are compared.It is concluded that trichoderma has the characteristics of both bacteria and lignin fungi.By comparing trichoderma with other microorganisms in the degradation rate of PAHs and advantages,it is found that trichoderma has strong tolerance to PAHs and can give a higher degradation rate.Furthermore,trichoderma has less requirements for substrate specificity,and can withstand high concentrations of heavy metals,cyanides,pesticides and other pollutants.In a short term,it can exhibit a higher degradation against PAHs and a strong implant,and can also cooperate with plants.These characteristics make trichoderma have good application potential in soil bioremediation.In the future,it is necessary to explore deeply the degradation mechanism of trichoderma against PAHs and further optimize its application.
关键词
木霉
/
潜力
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修复
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多环芳烃
Key words
trichoderma
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potential
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remediation
/
PAHs
木霉用于多环芳烃污染土壤生物修复潜力研究[J].
, 2020, 40(5): 19-22 DOI:10.16606/j.cnki.issn0253-4320.2020.05.005