烟嘧磺隆的微生物降解研究进展

发布时间：2018-02-15 18:58

本文关键词： 烟嘧磺隆微生物降解降解途径研究进展　出处：《农药学学报》2016年06期 　论文类型：期刊论文

【摘要】：烟嘧磺隆属磺酰脲类除草剂,因其对玉米安全,对一年生和多年生禾本科杂草及部分阔叶杂草、莎草科杂草高效而在玉米田广泛应用,但其在土壤中的残留则易对后茬敏感作物产生药害。微生物对烟嘧磺隆的降解有望成为修复污染土壤的有效措施。文章从烟嘧磺隆的使用及危害,可降解烟嘧磺隆的微生物种类及降解特性、降解途径、降解酶及其编码基因等方面进行了综述。目前有关烟嘧磺隆微生物降解的研究多集中于其降解菌的筛选、降解特性及降解途径等方面,对于其微生物降解过程中起关键作用的酶和基因方面的研究仍较少,因此未来的研究趋势将主要体现在降解复合菌系的培养、降解微生物的环境生态学、降解基因以及降解酶制剂等方面。
[Abstract]:A sulfonylurea herbicide of the genus Nicosulfuron, which is widely used in maize fields because of its safety to maize, to annual and perennial grasses and some broad-leaved weeds. However, its residues in soil are liable to harm sensitive crops. The degradation of nicosulfuron by microbes is expected to be an effective measure for remediation of contaminated soil. In this paper, the use and harm of nicosulfuron are discussed. The microbial species, degradation characteristics, degradation pathway, degradation enzymes and their coding genes of biodegradable niosulfuron were reviewed. At present, the studies on biodegradation of nicosulfuron were mainly focused on the screening of the degrading bacteria. In the aspects of degradation characteristics and degradation pathways, the studies on enzymes and genes that play a key role in the process of microbial degradation are still few, so the research trend in the future will be mainly reflected in the cultivation of biodegradable complex strains. Environmental ecology, degradation genes and enzyme preparation of biodegradable microorganisms.
【作者单位】：河北省农林科学院植物保护研究所/河北省农业有害生物综合防治工程技术研究中心;中国农业大学理学院;
【基金】：国家自然科学基金(31272085) 河北省自然科学基金(C2016301069) 河北省农林科学院博士基金(494-0701-YBN-K9UA)
【分类号】：X592;X172

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