Untapped Endophytic Colonization and Plant Growth-Promoting Potential of the Genus <i>Novosphingobium</i> to Optimize Rice Cultivation
Chakrapong RangjaroenDepartment of Agricultural Management Technology, Faculty of Science and Technology, Phranakhon Rajabhat UniversityRungroch SungthongInfrastructure and Environment Research Division, School of Engineering, University of GlasgowBenjavan RerkasemLanna Rice Research and Cultural Centre, Faculty of Agriculture, Chiang Mai UniversityNeung TeaumroongSchool of Biotechnology, Institute of Agricultural Technology, Suranaree University of TechnologyRujirek NoisangiamNational Bureau of Agricultural Commodity and Food Standards, Ministry of Agriculture and CooperativesSaisamorn LumyongMicrobiology Division, Department of Biology, Faculty of Science, Chiang Mai University
2017en
ABI
Abstract
With the aim of searching for potent diazotrophic bacteria that are free of public health concerns and optimize rice cultivation, the endophytic colonization and plant growth-promoting activities of some endophytic diazotrophic bacteria isolated from rice were evaluated. Among these bacteria, the emerging diazotrophic strains of the genus Novosphingobium effectively associated with rice plant interiors and consequently promoted the growth of rice, even with the lack of a nitrogen source. These results suggest that diazotrophic Novosphingobium is an alternative microbial resource for further development as a safe biological enhancer in the optimization of organic rice cultivation.
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