Patten C L, Glick B R
Department of Biology, University of Waterloo, ON, Canada.
Can J Microbiol. 1996 Mar;42(3):207-20. doi: 10.1139/m96-032.
Production of the phytohormone indole-3-acetic acid (IAA) is widespread among bacteria that inhabit the rhizosphere of plants. Several different IAA biosynthesis pathways are used by these bacteria, with a single bacterial strain sometimes containing more than one pathway. The level of expression of IAA depends on the biosynthesis pathway; the location of the genes involved, either on chromosomal or plasmid DNA, and their regulatory sequences; and the presence of enzymes that can convert active, free IAA into an inactive, conjugated form. The role of bacterial IAA in the stimulation of plant growth and phytopathogenesis is considered.
植物激素吲哚 - 3 - 乙酸（IAA）的产生在栖息于植物根际的细菌中广泛存在。这些细菌使用几种不同的IAA生物合成途径，有时单个细菌菌株含有不止一种途径。IAA的表达水平取决于生物合成途径；所涉及基因在染色体或质粒DNA上的位置及其调控序列；以及能够将活性游离IAA转化为无活性共轭形式的酶的存在。本文探讨了细菌IAA在刺激植物生长和植物发病机制中的作用。
