Colonization Ability of Bacillus subtilis HAS in Sugarcane
Colonization Ability of Bacillus subtilis HAS in Sugarcane作者机构：Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Science College of Basic Medicine and Life Science Hainan Medical College
出 版 物：《Plant Diseases and Pests》 (植物病虫害研究（英文版）)
年 卷 期：2018年第9卷第1期
页 面：26-28页
学科分类：09[农学] 0904[农学-植物保护] 090401[农学-植物病理学] 090402[农学-农业昆虫与害虫防治]
基 金：Supported by National Natural Science Foundation of China(31471555) Basic Scientific Research Fund of Central Public Welfare Research Institutes(1630052016010) China Agricultural Industry Research System(CARS-170301)
主 题：Bacillus subtilis HAS Sugarcane Colonization ability
摘 要：Bacillus subtilis HAS had good control effects on sugarcane smut in the field. Colonization dynamics of B. subtilis HAS were studied through biotics marker and pot culture, to understand the bio-control mechanism of the strain and provide experimental basis for commercialization. The results showed that *** HAS had strong colonization ability, which could be colonized in sugarcane root, stem, leaf and rhizosphere for long time, but the colonization levels were different. The colonization density of *** HAS remained 103 CFU/g soil in the rhizosphere and 102 CFU/g （fresh weight） in the root after inoculation of 60 d. The colonization in the rhizosphere decreased first, then increased and decreased again, and finally stabilized. The colonization in the root first increased then decreased. Meantime, colonization status in stems and leaves showed that the colonization density in stems and leaves was 10 CFU/g （fresh weight）, indicating that the colonization level was not high in stem and leaf.
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