论文部分内容阅读
利用Biolog-Eco技术对2个不同大豆基因型R1期的根际和非根际微生物群落功能多样性进行研究。结果表明,大豆根际微生物利用碳源量在整个培养过程都显著高于非根际,根际微生物的生理活性显著地高于非根际;不同基因型大豆对根际微生物群落功能多样性有显著影响,高产大豆北丰11根际微生物总体表现较高的活性,而且根际微生物利用碳源的类型有别于海9731,其利用羧酸类和多聚物相对较多,如α-丁酮酸、4-羟基苯甲酸、衣康酸、肝糖、吐温40和吐温80;而海9731利用氨基酸类及胺/氨类碳源较多,如腐胺和L-精氨酸。
The functional diversity of rhizosphere and non-rhizosphere microbial communities in two different soybean genotypes R1 was studied using Biolog-Eco technique. The results showed that the microbial biomass carbon utilization in soybean rhizosphere was significantly higher than that in non-rhizosphere soil during rhizosphere. The physiological activity of rhizosphere microorganisms in rhizosphere soil was significantly higher than that in non-rhizosphere soil. The functional diversity of rhizosphere microbial communities in different genotypes was Significantly, the rhizosphere microbes of high-yield soybean North Beifeng 11 had a higher overall activity, and the types of carbon sources utilized by rhizosphere microorganisms were different from those of sea 9731. Their utilization of carboxylic acids and polymers was relatively large, such as α-butanone Acid, 4-hydroxybenzoic acid, itaconic acid, glycogen, Tween 40, and Tween 80, while sea 9731 utilized more carbon sources such as putrescine and L-arginine.