山东科学 ›› 2016, Vol. 29 ›› Issue (4): 30-34.doi: 10.3976/j.issn.1002-4026.2016.04.007

• 农业微生物 • 上一篇    下一篇

霜霉病高效生防菌株BCJB01发酵培养基的优化

王贻莲,谢雪迎,扈进冬,陈凯,杨合同,李纪顺*   

  1. 山东省科学院生物研究所,山东省应用微生物重点实验室,山东 济南 250014
  • 收稿日期:2016-04-27 出版日期:2016-08-20 发布日期:2016-08-20
  • 作者简介:王贻莲(1978-),女,副研究员,研究方向为应用微生物。Email:yilianwang@ 163.com *通信作者。 Email:yewu2@sdas.org
  • 基金资助:

    山东省重点研发计划(2015GNC113002);山东省科学院-枣庄市产业技术研发联合基金(201503);公益性行业( 农业) 科研专项(201203035)

Optimization of fermentative medium for highly effective biocontrol strain Bacillus cereus BCJB01 against downy mildew

WANG Yi-lian,XIE Xue-ying,HU Jin-dong,CHEN Kai,YANG He-Tong,LI Ji-shun*   

  1. Shandong Provincial Key Laboratory of Applied Microbiology, Biology Institute, Shandong Academy of Sciences, Jinan 250014, China
  • Received:2016-04-27 Online:2016-08-20 Published:2016-08-20

摘要:

为提高霜霉病高效生防菌株Bacillus cereus BCJB01的发酵水平,通过正交试验、综合优选及糖分流加试验,优化BCJB01的发酵培养基。优化出的培养基配方的质量分数为:玉米粉2.00%、豆粕粉1.00%、四水氯化锰0.003 0%、十二水磷酸氢二钠0.30%、二水磷酸二氢钠0.15%、七水硫酸镁0.035%、氯化钙0.10%和酵母提取物0.30%,接菌后6~12 h流加质量分数0.2%糖。本研究优化的培养基配方在接种量为3%(V/V),转速为180 r /min,温度为 30 ℃的摇床振荡培养至66 h时,芽孢率近90%,菌体数量达100×108 cfu/mL以上。

关键词: 蜡样芽孢杆菌, 正交设计, 综合优选, 霜霉病, 发酵培养基

Abstract:

To improve fermentation level of Bacillus cereus BCJB01, a highly efficient biocontrol strain against downy mildew, we optimized its fermentative medium through orthogonal test, comprehensive optimization and sugar feeding tests. Mass fraction of the optimized medium formula are 2.00% corn meal,1.00% soybean powder, 0.0030% manganese chloride tetrahydrate, 0.30% twelve aqueous disodium hydrogen phosphate, 0.15% sodium dihydrogen phosphate dihydrate, 0.035% magnesium sulfate heptahydrate, 0.10% calcium chloride, 0.30% yeast extract, 0.2%sugar added at 6~12 h after inoculation. It can produce more than 100×108 cfu/mL cells and its spore rate is 90%, when the cultivation conditions are 3%(V/V) inoculum size, 180 r / min rotation velocity, 30 ℃ shaky cultivation till 66 hours.

Key words: orthogonal design, downy mildew, Bacillus cereus, fermentative medium, comprehensive optimization

中图分类号: 

  • Q939.95