Department of Microbiology, School of Life Sciences, Bharathidasan University, Trichirapalli, Tamil Nadu, India.
Nat Prod Res. 2010 Apr;24(6):521-9. doi: 10.1080/14786410802299281.
About 64 total actinomycetes were isolated from various coastal soils. Sixteen actinomycete isolates were screened for herbicidal principles. Out of these, five potent isolates were selected for characterisation and identification. Based on their morphological, biochemical and physiological characteristics, the actinomycete isolates were identified as Glyomyces, Saccharomonospra and Streptomyces sp. The Streptomycetes isolates were tested for herbicidal principles by germination inhibition assay. About 10 crop seeds were tested for herbicidal activity with Streptomycetes isolates. The crop seeds did not show growth inhibition. Four weed seeds were tested for herbicidal activity with Streptomyces isolates. Streptomyces inhibits the growth of Echinochilora crusgalli, but it could not inhibit the growth of Echinochilora colonum, Parthenium sp., or Ageratum conizoites. The present study concludes that Streptomyces isolates will be a bioherbicide against E. crusgalli. Further study is required to confirm the activity of Streptomyces isolates against E. crusgalli under field conditions.
从各种沿海土壤中分离出约 64 株放线菌。对 16 株放线菌进行除草原理筛选。在这些中，选择了五个有潜力的分离物进行特性和鉴定。根据放线菌的形态、生化和生理特征，将放线菌分离物鉴定为 Glyomyces、Saccharomonospra 和 Streptomyces sp。通过发芽抑制试验对链霉菌分离物进行除草原理测试。用链霉菌分离物测试了约 10 种作物种子的除草活性。作物种子没有表现出生长抑制。用链霉菌分离物测试了 4 种杂草种子的除草活性。链霉菌抑制了稗草的生长，但不能抑制空心莲子草、假臭草或鬼针草的生长。本研究得出结论，链霉菌分离物将成为防治稗草的生物除草剂。需要进一步研究以确认链霉菌分离物在田间条件下对稗草的活性。
