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不同碳源对金龟子绿僵菌IMI330189生长的影响

王磊1,2, 赵霞1,2, 曹广春2, 张泽华2   

  1. 1. 沈阳农业大学植物保护学院, 沈阳 110161;2. 中国农业科学院植物保护研究所/农业部作物有害生物综合治理重点实验室, 北京 100081
  • 收稿日期:2013-01-15 修回日期:1900-01-01 出版日期:2014-02-08 发布日期:2014-02-08
  • 通讯作者: 张泽华,研究员,E-mail:lgbcc@263.net。

Effect of Different Carbon Sources on the Growth of Metarhizium anisopliae IMI330189

WANG Lei1,2, ZHAO Xia1,2, CAO Guangchun2, ZHANG Zehua2   

  1. 1. College of Plant Protection, Shenyang Agricultural University, Shenyang 110161;2. Key Laboratory of Integrated Pest Management in Crops, Ministry of Agriculture/Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2013-01-15 Revised:1900-01-01 Online:2014-02-08 Published:2014-02-08

摘要: 本文以单糖葡萄糖、果糖、蔗糖、葡萄糖+果糖(1:1)、多糖可溶性淀粉以及可溶性淀粉经酶处理后的水解产物为碳源,测定了发酵过程中糖消耗水平及绿僵菌生物量,分析了碳源对绿僵菌生长代谢的影响。结果表明,供试碳源中,葡萄糖+果糖的生物量最大(16.16 g/L)、达到最大生物量时的增长速度也最大(0.4238 g/L·h),并且被绿僵菌利用最快(48 h);其它依次为蔗糖、葡萄糖、果糖、可溶性淀粉;相同质量淀粉经外源α-淀粉酶水解12 h后作为碳源,与直接利用可溶性淀粉相比绿僵菌生物量增加14.3%左右。由此可见多糖基质碳源不利于绿僵菌的吸收利用,若在多糖基质碳源中添加外源糖类水解酶提前将多糖降解为单糖供绿僵菌生长,可提高绿僵菌对其利用率,进而提高发酵水平,降低发酵成本。

Abstract: The effect of different carbon sources on the fermentation of Metarhizium anisopliae IMI330189 was determined in this paper. The effects of six carbon sources—glucose, sucrose, soluble starch, fructose, glucose+ fluctose (1:1) and the starch hydrolysate on the growth and the metabolism of M. anisopliae were discussed. The results showed that glucose+fluctose was the best carbon source among the six carbon sources, the biomass, growth rate and degradation time were 16.16 g/L, 0.4238 g/L·h, 48 h respectively, and the biomass were glucose+fluctose>sucrose>glucose>fructose>soluble starch. The starch hydrolysate were found to be better for M. anisopliae, the biomass of M. anisopliae was improved 14.3% compared with soluble starch. So it was demonstrated that the utilization of polysaccharide was insufficient for M. anisopliae and the addition of exogenous enzyme might improve the fermentation level and decrease the cost of M. anisopliae.

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