is an endophytic diazotrophic bacterium and a plant growth promoting bacteria. causes the anthracnose, one of the most destructive maize diseases worldwide. The main objective of this work was to evaluate the effects of SmR1 strain on the plant growth and leaf anthracnose of maize plants grown in substrate amended or not amended with humic substances. In the first assay, plants were pre-treated with and inoculated with at 7, 14 and 21 days after treatment (DAT). In the second assay, plants were treated with , grown in substrate amended with humic substances and inoculated at 3 and 7 DAT. The anthracnose severity was assessed by measurement of necrotic and chlorotic leaf area, and bacteria were quantified in leaves by quantitative PCR. did not affect the disease severity in maize leaves, although it efficiently colonized the leaf tissues and it promoted maize leaf growth. Humic substances improved colonization in maize.
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| http://dx.doi.org/10.1007/s12298-018-0616-2 | DOI Listing |
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