Cultivation of Jatropha curcas L. leads to pronounced mycorrhizal community differences

Dieng, Amadou; Duponnois, Robin; Ndoye, Ibrahima; Baudoin, Ezékiel

doi:10.1016/j.soilbio.2015.06.019

Cited by 8 publications

(6 citation statements)

References 59 publications

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“…So far, most studies intending to evaluate the direct or indirect interaction between foliar endophytes and mycorrhizal fungi have been performed on systemic foliar fungal endophyte species of grasses (Novas et al 2005;Vignale et al 2017), and, to our knowledge, there is no information available on other herbaceous and woody plants. Dieng et al (2015) studied the effect of J. curcas on AMF in West Senegal, finding a pronounced compositional shift in root mycorrhizal communities in J. curcas-grown soils. Here, through a mesocosm experiment, we analyzed for the first time the effect of non-systemic foliar endophytes on AMF in J. curcas.…”

Section: Discussionmentioning

confidence: 99%

“…Conversely, host plants are able to shape their own rhizosphere microbiome by adjusting environmental factors such as pH levels, soil nutrients, and root architecture (Miao et al 2015). Evidence of interactions between J. curcas and fungal symbionts or other interacting microorganisms, and their effects on soil microbiota, is lacking (Dieng et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Mycorrhizal Colonization and Soil Parameters Affected by Foliar Endophytes in Jatropha curcas L.

D’Jonsiles

Carmarán

Robles

et al. 2019

J Soil Sci Plant Nutr

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Considering that rhizospheric microorganisms play a critical role in providing the plant nutrients for growth and in the adaptation of plants to ecosystems, the aim of the present study was to evaluate the association between foliar endophytes and their effect on soil and rhizospheric fungi using Jatropha curcas, a promising crop for high-quality biofuel, as a model plant. We conducted a factorial experiment. Endophytes and selected rhizospheric fungi were isolated and identified, and the colonization of mycorrhizal fungi was recorded. While the most interesting result was the significant increase in mycorrhizal colonization when J. curcas was associated with endophytes, it was also evident that this association is able to modulate some soil chemical parameters. This study suggests that the association between J. curcas and endophytes has an impact on specific root symbiotic fungi that usually plays relevant roles in nutrient availability for plants, and it would provide tools to enhance plant growth and oil yields.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mycorrhizal Colonization and Soil Parameters Affected by Foliar Endophytes in Jatropha curcas L.

D’Jonsiles

Carmarán

Robles

et al. 2019

J Soil Sci Plant Nutr

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“…The vast majority of plants showed an increment in phosphorus contents until the end of the experiment, suggesting that bio-solubilization of nutrients by the inoculum or production of phosphatases by native microbiota occurred. Dieng et al (2014 and2015), observed that microbial biomass and phosphorus and nitrogen contents are higher in soils planted with J. curcas. However, in treatments SWRWI, S135RWI and S27RWI the content of phosphorus in plant leaves decreased.…”

Section: Analysis Of Phosphorus Content In Jatropha Curcas Leavesmentioning

confidence: 99%

Research Article Phosphate solubilizing activity of native soil microorganisms from the rhizosphere of <i>Jatropha</i> <i>curcas</i> and from phosphate-solubilizing bacteria inoculum

Santana¹,

Dias²

2019

Genet. Mol. Res.

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“…The absence of two bacterial populations, no longer observed 210 days into the experiment, suggests an absence of adaptation among some bacterial populations of native microbiota, and between these and the plant. The absent populations may have been selected or had reduced numbers of individuals within the population, which would not support competition for nutrients with other bacterial populations, and would be negatively influenced by the release of toxic substances from the plant (Dieng et al, 2014(Dieng et al, , 2015. Bacterial strains from the genus Bacillus were detected, confirming its constant presence in the rhizosphere of J. curcas L. Owing to the pronounced modification of the profile of bacterial communities after inoculation, the presence of a product containing phosphate as well as the probable successes in nutrient competition with other microorganism and with the plant may explain the dominance of PSB.…”

Section: Dgge Analysis Dendrograms and Dna Sequencingmentioning

confidence: 99%

Effects of phosphate-solubilizing bacteria, native microorganisms, and rock dust on Jatropha curcas L. growth

2016

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Microorganisms with the ability to release nutrients to the soil from insoluble sources may be useful for plant cultivation. We evaluated the growth-promoting effect on Jatropha curcas L. of phosphate-solubilizing bacteria (PSB) and the native microbiota in soil with or without rock dust. J. curcas L. is important for biodiesel production. The experiments were performed in a greenhouse under a random-statistical design with 14 replicates. The soil received increasing dosages of rock dust. The presence of resident microorganisms and PSB inoculum was correlated with plant height, biomass production, and phosphorus content in plants for 120 days. Native soil microorganisms were detected and identified using denaturing gradient gel electrophoresis and DNA sequence analysis. Several bacterial populations belonged to the genus Bacillus. Populations associated with the phyla Chytridiomycota and Ascomycota were detected among the fungi. The best results for the variable plant height were correlated with the presence of resident microbiota and rock dust until the end of the experiment. The largest biomass production and the highest content of phosphorus occurred in the presence of soil-resident microbiota only up to 120 days. No significant effects were observed for biomass production with the use of PSB combined with rock dust. J. curcas L. under the influence of only resident microbiota showed the best plant growth results. Future research will focus on the specificity of resident microbiota activity in plant growth promotion and the isolation of these microorganisms to produce a new inoculum to be tested in various plants.

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Cultivation of Jatropha curcas L. leads to pronounced mycorrhizal community differences

Cited by 8 publications

References 59 publications

Mycorrhizal Colonization and Soil Parameters Affected by Foliar Endophytes in Jatropha curcas L.

Mycorrhizal Colonization and Soil Parameters Affected by Foliar Endophytes in Jatropha curcas L.

Research Article Phosphate solubilizing activity of native soil microorganisms from the rhizosphere of <i>Jatropha</i> <i>curcas</i> and from phosphate-solubilizing bacteria inoculum

Effects of phosphate-solubilizing bacteria, native microorganisms, and rock dust on Jatropha curcas L. growth

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