What question did this study set out to answer?

To evaluate the diversity and growth responses of Rhizobium strains isolated from nitrogen-fixing trees under elevated temperature, pH, and salinity stress.

September 1, 1997Canadian Journal of Microbiology

Characterization of Rhizobium from root nodules of leguminous trees growing in alkaline soils

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To evaluate the diversity and growth responses of Rhizobium strains isolated from nitrogen-fixing trees under elevated temperature, pH, and salinity stress.
Isolated Rhizobium strains from root nodules of diverse nitrogen-fixing tree species in tropical alkaline environments.
Tested bacterial survival and growth across elevated temperatures (up to 50 °C), high pH levels (up to 12.0), and salt concentrations (up to 5.0%).
Characterized metabolic capacity using 27 carbon sources and compared oxygen consumption rates at pH 7.0 versus pH 9.0.
The Rhizobium strain isolated from Albizia lebbek survived at 50 °C, and strains from Sesbania formosa, Acacia farnesiana, and Dalbergia sissoo grew at pH 12.0.
All evaluated Rhizobium strains tolerated salt concentrations up to 5.0%.
Strains demonstrated distinct substrate utilization profiles and generally maintained higher oxygen consumption rates at pH 7.0 relative to pH 9.0.

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Implication

In vitro characterization reveals extreme heat, pH, and salinity tolerance among tree-nodulating Rhizobium strains, highlighting their potential for reforestation in harsh soils.

Cite This Study

Surange et al. (1997) studied this question.

synapsesocial.com/papers/6a6ffb5f5d37378ac1dd0963 https://doi.org/10.1139/m97-130

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Implication

In vitro characterization reveals extreme heat, pH, and salinity tolerance among tree-nodulating Rhizobium strains, highlighting their potential for reforestation in harsh soils.

Characterization of Rhizobium from root nodules of leguminous trees growing in alkaline soils

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Discussion

Implication

Cite This Study

Characterization of Rhizobium from root nodules of leguminous trees growing in alkaline soils

Key Points

Discussion

Implication

Cite This Study

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