航天搭载对硅链霉菌菌株生理生化特性的影响  

Effects of spaceflight on the physiological and biochemical characteristics of Streptomyces silicium bacterial fertilizer strain

作　　者：汪亚洁 王晓桦 唐天成 WANG Ya-jie;WANG Xiao-hua;TANG Tian-cheng(Xinjiang Shanchuan Xiuli Biology Co.,Ltd.,Urumqi Xinjiang 830011)

机构地区：[1]新疆山川秀丽生物有限公司,新疆乌鲁木齐830011

出　　处：《中国土壤与肥料》2022年第11期219-222,共4页Soil and Fertilizer Sciences in China

基　　金：新疆维吾尔自治区专利实施计划项目(2015SS1017)。

摘　　要：研究航天搭载对硅链霉菌菌株生理生化特性的影响。通过神舟九号飞船搭载硅链霉菌进行实验,对航天诱变菌株的生理生化特性进行分析,为我国微生物肥料行业整体的技术进步奠定基础。结果表明:(1)搭载诱变菌株和CK菌株可以利用10种碳源,也可以利用10种氮源;(2)搭载诱变菌株和CK菌株都可以水解淀粉,但都不产生H2S;(3)在4~45℃条件下,搭载诱变菌株与CK菌株均可以生长,并且生长状况差异不显著;但在55℃条件下,2种菌株均不能生长;(4)搭载诱变菌株在pH=6~10条件下生长良好,而CK菌株在pH为7、8、9条件下生长良好。搭载诱变菌株和CK菌株相比较,在碳源利用、氮源利用、水解淀粉、不产生H2S和温度耐受方面均无明显差别,表现出相似性,但在耐pH方面,与CK菌株相比,搭载诱变菌株生长的pH范围更广,有更好的耐受性,显示了搭载诱变菌株具有更强的抗逆性。The effect of spaceflight on the physiological and biochemical characteristics of Streptomyces silicium bacterial fertilizer strain was studied.Streptomyces silicium bacterial fertilizer strain was carried by Shenzhou 9 spacecraft for experiment,and the physiological and biochemical characteristics of stain after spaceflight mutagenesis were analyzed,which laid the foundation for the overall technological progress of national microbial fertilizer industry.Results showed that:(1)The loaded strain and CK strain could utilize ten carbon sources and ten nitrogen sources;(2)Both the loaded strain and the CK strain could hydrolyze starch,but neither produced H2S;(3)Under the condition of 4 ~ 45 ℃,both the loaded strain and the CK strain could grow,and the growth situation was not significantly different;but at 55 ℃,neither strains could grow;(4)The strains grow well under the condition of pH=6 ~ 10 after loading.The CK strains grow well under the conditions of pH=7,8,9.There were no significant difference in carbon source utilization,nitrogen source utilization,hydrolyzed starch,no H2S production and temperature tolerance between the loaded strain and the CK strain,but in terms of pH tolerance,the loaded strain could grow in a wider pH range,had better tolerance,and thus showed stronger stress resistance.

关 键 词：太空搭载 硅链霉菌 生理生化特性 

分 类 号：Q93-33[生物学—微生物学]