Mycorrhiza-assisted phytoremediation of spiked chromium-contaminated soil: Assessing AMF-vetiver symbiosis for Cr accumulation and soil quality enhancement
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View abstract on PubMed
Summary
This summary is machine-generated.Arbuscular mycorrhizal fungi (AMF) enhance chromium (Cr) accumulation in vetiver plants, aiding phytoremediation. Glomus hoi effectively reduced soil Cr bioavailability, showcasing AMF as a sustainable solution for Cr-contaminated soils.
Area Of Science
- Environmental Science
- Soil Science
- Mycology
Background
- Chromium (Cr) is a toxic soil pollutant impacting ecosystems.
- Phytoremediation using mycorrhizae offers an eco-friendly remediation strategy.
- Vetiver grass (Chrysopogon zizanioides L.) is a potential candidate for Cr phytoremediation.
Purpose Of The Study
- To investigate the efficacy of arbuscular mycorrhizal fungi (AMF) in enhancing Cr phytoremediation by vetiver plants.
- To compare the effectiveness of different AMF species (Claroideoglomus claroideum, Glomus hoi, Claroideoglomus etunicatum) in mitigating Cr contamination.
- To assess the impact of AMF inoculation on soil properties and plant growth under Cr stress.
Main Methods
- Vetiver plants were grown in Cr-contaminated soil (100-1000 mg kg⁻¹) with inoculation of three AMF species.
- Cr accumulation in plant tissues and bioavailability in soil were analyzed.
- Soil microbial and enzymatic activities, glomalin content, and plant growth parameters were measured.
Main Results
- AMF inoculation significantly increased Cr accumulation in vetiver roots (up to 1.96-fold).
- Glomus hoi demonstrated the highest reduction in soil Cr bioavailability, followed by C. claroideum and C. etunicatum.
- AMF inoculation improved soil microbial and enzymatic activities, antioxidant capacity, and plant growth, while enhancing glomalin production and root colonization.
Conclusions
- AMF-assisted phytoremediation is a sustainable and effective method for managing Cr-contaminated soils.
- Glomus hoi shows superior performance in reducing Cr bioavailability and enhancing vetiver's phytoremediation capacity.
- The symbiotic association between vetiver and AMF offers a promising solution for soil remediation.
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