Screening and Identification of Marine Actinomyceteswith Herbicidal Activity
Liu Zhaoliang
Yuan Zhonglin
Zhou Changjian
Luo Lan
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.
Keywords：Marine actinomycetesHerbicidal activityScreeningIdentification
Publication Date：2017-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 63-68 )