水溶性维生素对巴西固氮螺菌产生吲哚-3-乙酸的影响。
Effect of water-soluble vitamins on the production of indole-3-acetic acid by Azospirillum brasilense.
作者信息
Zakharova E A, Iosipenko A D, Ignatov V V
机构信息
Laboratory of Biochemistry, Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov.
出版信息
Microbiol Res. 2000 Sep;155(3):209-14. doi: 10.1016/S0944-5013(00)80034-8.
The effects of six water-soluble vitamins on tryptophan-dependent synthesis of indole-3-acetic acid in Azospirillum brasilense were investigated. A multifactorial regression analysis was employed to produce models of indole-3-acetic acid synthesis versus concentrations of tryptophan and the vitamins added to the growth medium. Very low levels of the B-group vitamins added at 10 to 100 microg l(-1) affected production of indole-3-acetic acid in A. brasilense. The largest release of this phytohormone was observed after amendment with pyridoxine and nicotinic acid. Results of the study suggest a role these vitamins may fulfil in the regulation of indole-3-acetic acid synthesis in A. brasilense.
研究了六种水溶性维生素对巴西固氮螺菌中色氨酸依赖性吲哚 - 3 - 乙酸合成的影响。采用多因素回归分析来建立吲哚 - 3 - 乙酸合成与色氨酸浓度以及添加到生长培养基中的维生素浓度之间的模型。以10至100微克/升添加的极低水平的B族维生素影响了巴西固氮螺菌中吲哚 - 3 - 乙酸的产生。在用吡哆醇和烟酸改良后，观察到这种植物激素的最大释放量。该研究结果表明这些维生素可能在巴西固氮螺菌中吲哚 - 3 - 乙酸合成的调节中发挥作用。
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