期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 81, 期 8, 页码 1657-1662出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09168451.2017.1329621
关键词
Azospirillum; disease resistance; endophyte; Solanum lycopersicum L.; tomato
类别
资金
- Ministry of Agriculture, Forestry, and Fisheries [27006B]
A plant growth-promoting bacteria, Azospirillum sp. B510, isolated from rice, can enhance growth and yield and induce disease resistance against various types of diseases in rice. Because little is known about the interaction between other plant species and this strain, we have investigated the effect of its colonization on disease resistance in tomato plants. Treatment with this strain by soil-drenching method established endophytic colonization in root tissues in tomato plant. The endophytic colonization with this strain-induced disease resistance in tomato plant against bacterial leaf spot caused by Pseudomonas syringae pv. tomato and gray mold caused by Botrytis cinerea. In Azospirillum-treated plants, neither the accumulation of SA nor the expression of defense-related genes was observed. These indicate that endophytic colonization with Azospirillum sp. B510 is able to activate the innate immune system also in tomato, which does not seem to be systemic acquired resistance.
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