山东农业科学2017，Vol.49Issue(8)：63-68,6.DOI:10.14083/j.issn.1001-4942.2017.08.015
具有除草活性的海洋放线菌筛选与鉴定
Screening and Identification of Marine Actinomyceteswith Herbicidal Activity
摘要
Abstract
Three marine actinomyces with inhibitory effect on the growth of wheat were screened.The herbicidal activity of the three strains were determined using the plate method and with Amaranthus retroflexus,Lactuca sativa and Cucumis sativus as the tested plants.The results showed that there were obvious inhibitory effects of SLR2,GC3 and AF2 fermentation supernatant fractions on young root and bud growth of A.retroflexus,L.sativa and C.sativus.The inhibition rates of SLR2,GC3 and AF2 fermentation supernatants on young roots and buds of A.retroflexus were all 100%,and those of their five times supernatant diluents were more than 50%.The inhibition rates of SLR2 and GC3 fermentation supernatants on L.sativa were 95.1%~100% and 80.9%~100%,respectively,and those of SLR2 fermentation supernatants on C.sativus were 73.8%~77.4%.Based on the 16S rDNA sequence and physiological properties,the strain SLR2,GC3 and AF2 were identified as Promicromonospora umidemergens,Streptomyces pluricolorescens and Streptomyces parvus respectively.关键词
海洋放线菌/除草活性/筛选/鉴定Key words
Marine actinomycetes/Herbicidal activity/Screening/Identification分类
农业科技引用本文复制引用
刘兆良,袁忠林,周长健,罗兰..具有除草活性的海洋放线菌筛选与鉴定[J].山东农业科学,2017,49(8):63-68,6.基金项目
山东省"泰山学者"建设工程专项 （）
