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Frontiers in Soil Science
Article . 2025 . Peer-reviewed
License: CC BY
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Frontiers in Soil Science
Article . 2025
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Disentangling the functioning of native soil microbes in enhancing nutritional value of Aloe vera and soil health parameters

Authors: Neha Singh Chandel; H. B. Singh; Anukool Vaishnav;

Disentangling the functioning of native soil microbes in enhancing nutritional value of Aloe vera and soil health parameters

Abstract

Soil salinity is a significant global issue that adversely affects plant growth by reducing the availability of essential nutrients, leading to deficiencies. This presents challenges for the production of medicinal plants, as their value relies on nutrient-dependent metabolites. To address this, bioremediation strategies using living organisms have gained attention. Native bacteria in saline soils offer a sustainable way to restore soil health and mitigate salt stress. This study investigates the impact of native rhizosphere soil bacteria on the growth and nutritional value of Aloe vera. We screened four bacterial isolates from the rhizosphere of A. vera plants grown in saline soil in the Mathura region of Uttar Pradesh, India, focusing on their nutrient-solubilizing abilities. These bacterial strains demonstrated phosphate solubilization, potassium solubilization, siderophore production, indole-3-acetic acid (IAA) production, and protease activity. Using partial 16S rRNA gene sequencing, bacterial isolates were identified as Paenibacillus sp., Arthrobacter sp., Pseudomonas sp., and Bacillus sp. Subsequently, a pot experiment was conducted to augment the population of these bacteria in the soil and to evaluate their impact on A. vera’s growth and nutritional value. The bacteria were applied both individually and as a consortium. To assess the impact of these inoculations, the nutrient content of leaf gel and various soil health parameters were measured. The results showed that the application of the bacterial consortium yielded higher number of leaves (47%), leaf fresh weight (74%), gel content (33%), and nutritional properties as compared to control treatment (non-inoculated). Furthermore, bacterial inoculation significantly enhanced soil enzymatic activity and increased the soluble nitrate and phosphate content in the experimental soil. In conclusion, the presence of these bacteria in the rhizosphere of A. vera, along with their nutrient-solubilizing activities, enhances nutrient uptake and metabolite synthesis in the host plant under saline soil conditions.

Keywords

Chemistry, leaf gel content, saline soil, PGPR, TA703-712, Engineering geology. Rock mechanics. Soil mechanics. Underground construction, soil enzymatic activity, Aloe vera, QD1-999, metabolites

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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