枯草桿菌菌體及其代謝產物對病原真菌之抑菌效果評估

Evaluation of the inhibition activity of Bacillus subtilis-based products and their related metabolites against pathogenic fungi in Taiwan.

謝奉家(Hsieh, F. C.) ； 李美珍(Li, M. C.) ； 高穗生(Kao, S. S.)

《植物保護學會會刊》 45卷2期 (2003/06) Pp. 155-162

https://doi.org/10.6715/PPB.200306_45(2).0007

摘要

無資料

關鍵字

枯草桿菌 ； 殺菌劑 ； 抑菌活性 ； 半數抑菌濃度

並列摘要

Many fungicides are being removed from the commercial market because they do not readily degrade in natural systems and/or they leave potentially hazardous residues in food and feed products. This has created a demand for safer products to prevent or delay the development of fungicide resistance or to reduce the risk of chemical pollution. In recent years, there has been considerable interest in using Bacillus subtilis (Bs), a gram-positive, spore-forming bacterium, as a biocontrol agent because of its ability to antagonize pathogens and repress plant diseases. In 2001, the first Taiwan domestic commercial biofungicide was registered for the control of pea powdery mildew. Bacillus subtilis has also been used to control soil-borne fungal pathogens under greenhouse conditions and in the field. However, there has been no report on comparisons of bioactivities among Bs-based products. We first established a bioassay method for Bs-based products on the basis of their inhibition activity against plant pathogens. Then, the bioactivities of 3 Bs-based products to 6 pathogenic fungi were individually tested. We report herein that only 1 Bs-based product was highly effective. These results show that the quality of these 3 Bs-based products is variable.

並列關鍵字

Bacillus subtilis ； fungicide ； inhibition activity ； 50% inhibition concentration