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Position: Home > Articles > Dynamic of IAA Produced by Nitrogen Fixation Bacteria around Oat Root System Journal of Anhui Agricultural Sciences 2007,35 (15) 4424-4425+4441

燕麦根际固氮菌分泌IAA的动态变化研究

作  者:
吴瑛;席琳乔
单  位:
新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室;塔里木大学文理学院
关键词:
联合固氮菌;分泌IAA;动态
摘  要:
对从草坪草和牧草根际分离出的4株联合固氮菌分泌IAA的能力和分泌动态进行了研究,结果表明:在培养3 d后,菌株分泌IAA的能力基本稳定。因此,为了进一步的验证上述结果,又进行了连续14 d分泌IAA的动态测定。2次测定的IAA浓度不同,但2次测定的IAA分泌动态规律基本一致。其中I012I、033I、034I、041分泌IAA能力分别为29.1μg/ml2、5.2μg/ml2、5.5μg/ml、36.1μg/ml。
译  名:
Dynamic of IAA Produced by Nitrogen Fixation Bacteria around Oat Root System
作  者:
WU Ying et al(College of Artsand Science,Tarum University,Alaer,Xinjiang 843300)
关键词:
associative nitrogen fixation bacteria;producing IAA;dynamic
摘  要:
Four associative nitrogen-fixing bacteria were isolated from turfgrass.The ability and dynamic of producing aunix were determined in a week.The results showed that the amount was stable after three days culture.In order to validate the results,the dynamic auxin during14 days were determined as well.The concentrations of IAA in the two experiments were different,but the law of variety did not change.With L-Trp,IAA concentration of I012,I033,I034 and I041 reached 29.1 μg/ml,25.2 μg/ml,25.5 μg/ml and 36.1 μg/ml.

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