Promoting plant growth in a commercial rice cultivar by endophytic diazotrophic bacteria isolated from rice landraces

Rangjaroen, Chakrapong; Rerkasem, Benjavan; Teaumroong, Neung; Noisangiam, Rujirek; Lumyong, Saisamorn

doi:10.1007/s13213-014-0857-4

Cited by 56 publications

(37 citation statements)

References 74 publications

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“…The species compared to the uninoculated control. This could be identified in this study are in correlation with other attributed to the suppression of seed pathogens studies on rice endopshere microbiome (Mbai et al, (Abiala et al, 2015) as well as the synthesis of 2013, Mwajita et al, 2013) who both implicated a hormones such as IAA by the isolates in this study (Ng wide variety of bacteria. et al, 2012).…”

Section: Lengths) Eight Isolates Significantly Increased Sp Staphylsupporting

confidence: 90%

Screening of endophytic plant growth-promoting bacteria isolated from two Nigerian rice varieties.

Olayemi¹,

Odedara²

2017

Nig. J. Biotechnol

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Section: Lengths) Eight Isolates Significantly Increased Sp Staphylsupporting

confidence: 90%

Screening of endophytic plant growth-promoting bacteria isolated from two Nigerian rice varieties.

Olayemi¹,

Odedara²

2017

Nig. J. Biotechnol

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“…Nitrogen-fixing microbes (so-called “diazotrophs”) offer significant benefits in the optimization of rice cultivation because they fix atmospheric nitrogen and supply usable forms of nitrogen to rice plants (14, 15). With the exception of obligate symbiotic diazotrophs ( e.g.…”

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confidence: 99%

“…, Rhizobium ), many other diazotrophs fix an unlimited amount of nitrogen in the free-living and endophytic phases ( e.g. , Klebsiella and Sphingomonas ) (14, 17). Attentive selection is essential for the further implementation of unlimited nitrogen-fixing microbes in rice cultivation because some of these microbes have been identified as health risks for farmers ( e.g.…”

mentioning

confidence: 99%

Untapped Endophytic Colonization and Plant Growth-Promoting Potential of the Genus <i>Novosphingobium</i> to Optimize Rice Cultivation

Rangjaroen

Sungthong

Rerkasem

et al. 2017

Microbes and environments

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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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“…Local cultivars that have been grown traditionally for many years could serve as a source for potential endophytic diazotrophic bacteria that could be applied to modern commercial varieties as biofertilizers. This theory was proved by scientists from Thailand, who isolated 396 potential endophytic diazotrophic strains from 6 different landraces of rice growing in Chiang Mai, Thailand [105]. Based on the results of acetylene reduction assay, authors chose 21 isolates that were further screened to 10 on the basis of tests conducted for other PGP characteristics.…”

Section: Recent Studies Highlighting the Role Of Endophytic Diazotropmentioning

confidence: 99%

Nitrogen-Fixation by Endophytic Bacteria in Agricultural Crops: Recent Advances

Puri¹,

Padda²,

Chanway³

2018

Nitrogen in Agriculture - Updates

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Endophytic bacteria represents a unique class of bacteria that can colonize interior tissues of plant and provide a range of benefits to the plant similar to those provided by the rhizospheric bacteria. Certain endophytic bacteria can provide nitrogen to the plants through biological nitrogen fixation, which is an important source of nitrogen input in agriculture and represents a promising substitute for chemical fertilizers, and are known as endophytic diazotrophic bacteria. Besides fixing nitrogen, endophytic bacteria can produce plant growth hormones like auxin and gibberellin, help in nutrient uptake, and increase the plant's tolerance to biotic and abiotic stresses. Various direct and indirect methods have been used to quantify the amount of nitrogen fixed by these bacteria, including the acetylene reduction assay, which is a quick but indirect method, and the 15 N isotopic dilution assay, which is a robust and accurate method. Research on endophytic diazotrophic bacteria has come a long way, and in this chapter, we have briefly discussed the mechanisms of biological nitrogen fixation and methods to quantify the fixed nitrogen along with reviewing recent studies focused on evaluating the role of endophytic diazotrophic bacteria in promoting plant growth in both native and nonnative crop hosts.

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Promoting plant growth in a commercial rice cultivar by endophytic diazotrophic bacteria isolated from rice landraces

Cited by 56 publications

References 74 publications

Screening of endophytic plant growth-promoting bacteria isolated from two Nigerian rice varieties.

Screening of endophytic plant growth-promoting bacteria isolated from two Nigerian rice varieties.

Untapped Endophytic Colonization and Plant Growth-Promoting Potential of the Genus <i>Novosphingobium</i> to Optimize Rice Cultivation

Nitrogen-Fixation by Endophytic Bacteria in Agricultural Crops: Recent Advances

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