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利用含色氨酸的鉴定培养基从芝麻根际筛选出7株IAA产生菌,其中菌株SA4产IAA的能力最强。促生实验结果表明,菌株SA4明显具有促进黄瓜和玉米种子主根生长的能力,使它们的主根根长和根重增加为对照组的23倍。分子鉴定结果表明菌株SA4属于革兰氏阴性的假单胞菌属。
Abstract：Seven strains producing IAA were isolated from rhizosphere of sesame by the differential medium containing Ltryptophan,and strain SA4 was the best one producing IAA. The strain SA4 had obvious ability to promote the axial root growth of cucumber seedlings and maize seedlings. It made the axial root twice to three times as long as the control group,and also made the root fresh weight twice to three times as much as the control group. Strain SA4 was Gram negative one,and it was identified as Pseudomonas sp. based on the analyse of its 16 S r DNA.
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基本信息:
DOI：10.14096/j.cnki.cn34-1069/n.2015.02.017
中图分类号:S565.3;Q93
引用信息:
[1]陆娟,苏利梅,胡名扬,等.芝麻根际生长素产生菌SA4的分离与鉴定[J].阜阳师范学院学报(自然科学版),2015,32(02):79-82.DOI:10.14096/j.cnki.cn34-1069/n.2015.02.017.
基金信息:
国家自然科学基金(31201788);; 安徽省教育厅重点顶目(KJ2013A206);; 阜阳师范学院科技成果孵化基金(2013KJFH04);; 安徽省大学生创新创业训练计划项目(AH201310371046)资助
2015-06-16
2015-06-16