Endophytes of Jatropha curcas promote growth of maize

Mohanty, Santosh Ranjan; Dubey, Garima; Kollah, Bharati

doi:10.1016/j.rhisph.2016.11.001

Cited by 18 publications

(17 citation statements)

References 46 publications

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“…and B. safensis, respectively, did not present the same capacity (Table 2). Mohanty et al (2016), also obtained positive responses to nitrate reduction when working with bacteria isolated from Jatropha curcas L. plants. These results demonstrate that the isolates of endophytic bacteria characterized in the present work present the capacity to metabolize nitrate.…”

Section: Resultsmentioning

confidence: 89%

Characterization and activity of endophytic bacteria from ‘Prata Anã’ banana crop (Musa sp., AAB)

et al. 2018

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The objective of this study was to characterize banana tree endophytic bacteria at genus and species level and to determine the metabolic reactions associated with the nitrogen transformations. The identification at genus and species levels was performed using the partial sequencing of the rDNA 16S region. The assimbyotic nitrogen fixation, the reduction of nitrate and the production of urease were in vitro evaluated. The DNA of the bacterial isolates was also amplified to verify the presence of the nifH, nirK and nirS regions. Biochemical tests were performed in a complete randomized design; the treatments consisted of 39 bacterial isolates with three replications. Sequence analysis enabled the identification of four genera: Bacillus, Rhizobium, Klebsiella and Enterobacter. The Bacillus genus occurred more frequently, nine species were identified. By evaluating the results of biochemical tests, it was observed that three isolates showed multiple abilities: growth in NFb medium, nitrate reduction and production of urease. The isolates belong to the genus Bacillus and of the species subtilis, thuringienses and amyloliquefaciens. Approximately 12.5% of the isolates amplified the region corresponding to the nifH gene, 7.5% amplified gene nirK and 3.9% amplified the nirS gene. Endophytic bacteria evaluated in the present study showed in vitro activity for urease, nitrate reductase enzymes, however, relevant nitrogenase activity was not observed.

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Section: Resultsmentioning

confidence: 89%

Characterization and activity of endophytic bacteria from ‘Prata Anã’ banana crop (Musa sp., AAB)

et al. 2018

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“…We approached this hypothesis using Jatropha curcas (Euphorbiaceae), a key biodiesel crop that is cultivated globally. It is hypothesized that jatropha is able to tolerate severe abiotic stresses through the acquisition of plant growth-promoting bacteria (Mohanty et al 2017) which makes jatropha an excellent host to study the effects of abiotic and biotic filtering of endosymbionts. (1) If abiotic filtering due to the local environment drives biotic filtering of endosymbionts, then jatropha grown under the same conditions will recruit similar endosymbiotic communities despite differences in soil type and microbiota.…”

Section: Introductionmentioning

confidence: 99%

“…Extracts from its leaves, roots, latex, bark, and seed all demonstrate strong levels of antimicrobial activity (Abdelgadir and Van Staden 2013), meaning that the endosymbiotic community may be highly specialized. It is hypothesized that jatropha is able to tolerate severe abiotic stresses through the acquisition of plant growth-promoting bacteria (Mohanty et al 2017) which makes jatropha an excellent host to study the effects of abiotic and biotic filtering of endosymbionts.…”

Section: Introductionmentioning

confidence: 99%

Abiotic and biotic drivers of endosymbiont community assembly in Jatropha curcas

et al. 2019

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While the endosymbiotic communities recruited by plants are known to vary among host species and across environmental gradients, the drivers of community assembly remain poorly understood. We tested the hypothesis that establishment of an endosymbiotic bacterial community is driven primarily by the influence of the abiotic environment on biotic interactions between plant and soil bacteria. We planted sterile Jatropha curcas seedlings at three field sites in Panama and in a greenhouse with soil from those sites. After allowing sufficient time for endosymbiont colonization, we sequenced bacterial 16S rRNA to study the endophytic bacterial community in root and leaf tissue. We compared the communities between field and greenhouse plants and examined associations among the endosymbionts, the soil microbial community, and local abiotic factors. We found that endosymbiont richness and community composition varied between the greenhouse and field, despite plants being grown in the same soil. Plants in each field site harbored a distinct bacterial community, determined by soil microbes and select environmental variables, particularly major plant nutrients. Jatropha curcas can harbor a wide variety of endosymbiotic communities, and the composition of these communities is a product of the local environment. Fertility and agricultural practices may determine the fate of plant symbionts and therefore plant properties modulated through those symbionts.

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“…Mekete et al (2009) have successfully isolated endophytic bacteria from coffee plant to control the root-knot nematodes on tomato. In addition, Mohanty et al (2017) have also isolated endophytic bacteria from Jatropha curcas to promote the growth of maize.…”

Section: Introductionmentioning

confidence: 99%

Use of endophytic bacteria from roots of Cyperus rotundus for biocontrol of Meloidogyne incognita

et al. 2017

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Mardhiana, Pradana AP, Adiwena M, Santoso D, Wijaya R, Murtilaksono A. 2017. Use of endophytic bacteria from roots of Cyperus rotundus for biocontrol of Meloidogyne incognita. Biodiversitas 18: 1308-1315. Yield loss due to M. incognita infection in tomato plants cultivation can reach 60%. The problem is able to be solved through the application of endophytic bacteria. In this study, endophytic bacteria from root Cyperus rotundus were isolated using Tryptic Soy Agar media. The bacteria isolates were then tested their safety against plants and mammals. The phenotypic and physiological properties of selected isolates were characterized and tested to know their resistance to antibiotics, and their ability in suppressing the infection rate of M. incognita on tomato. Eighteen bacterial isolates were obtained and 8 of them are categorized as safe bacteria for plants and mammals, which could be used in further tests. A result of the physiological test showed that bacterial isolates were able to produce protease enzyme (87.5%), chitinase enzyme (62.5%), and HCN (37.5%), having urease activity (75%) and could dissolve phosphate (87.5%). Based on the test results, all endophytic bacteria effectively increased tomato growth and suppressed the severity of M. incognita infection with the most stable isolate as a biocontrol agent of M. incognita was CRS16.

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Endophytes of Jatropha curcas promote growth of maize

Cited by 18 publications

References 46 publications

Characterization and activity of endophytic bacteria from ‘Prata Anã’ banana crop (Musa sp., AAB)

Characterization and activity of endophytic bacteria from ‘Prata Anã’ banana crop (Musa sp., AAB)

Abiotic and biotic drivers of endosymbiont community assembly in Jatropha curcas

Use of endophytic bacteria from roots of Cyperus rotundus for biocontrol of Meloidogyne incognita

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