Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi

Authors: Mahanty, S., Pillay, K., Hardouin, E.A., Andreou, D., Cvitanović, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: Marine Pollution Bulletin

Volume: 209

eISSN: 1879-3363

ISSN: 0025-326X

DOI: 10.1016/j.marpolbul.2024.117233

Abstract:

This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20–9.7), Geo-accumulation indices (−2.19–1.19), Contamination Factors (0.61–3.18), and Pollution Load Indices (1.04–1.32). Toxic metal ions, including Pb, Cu, Ni, Cd, Zn, and Cr, were identified as key contributors to compromised sediment quality. These metals inhibit crucial sediment enzymes, such as CMC-cellulase, β-glucosidase, aryl sulfatase, urease, and phosphatases, essential for nutrient cycling and organic matter decomposition. A negative correlation was found between heavy metals and biodiversity, as indicated by the Shannon index, and a similar trend was observed with fungal load. The study highlights the adverse effects of persistent trace metals on the fungal community, potentially disrupting the mangrove ecosystem and suggests using manglicolous fungi as biological indicators of environmental health.

https://eprints.bournemouth.ac.uk/40559/

Source: Scopus

Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi.

Authors: Mahanty, S., Pillay, K., Hardouin, E.A., Andreou, D., Cvitanović, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: Mar Pollut Bull

Volume: 209

Issue: Pt B

Pages: 117233

eISSN: 1879-3363

DOI: 10.1016/j.marpolbul.2024.117233

Abstract:

This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20-9.7), Geo-accumulation indices (-2.19-1.19), Contamination Factors (0.61-3.18), and Pollution Load Indices (1.04-1.32). Toxic metal ions, including Pb, Cu, Ni, Cd, Zn, and Cr, were identified as key contributors to compromised sediment quality. These metals inhibit crucial sediment enzymes, such as CMC-cellulase, β-glucosidase, aryl sulfatase, urease, and phosphatases, essential for nutrient cycling and organic matter decomposition. A negative correlation was found between heavy metals and biodiversity, as indicated by the Shannon index, and a similar trend was observed with fungal load. The study highlights the adverse effects of persistent trace metals on the fungal community, potentially disrupting the mangrove ecosystem and suggests using manglicolous fungi as biological indicators of environmental health.

https://eprints.bournemouth.ac.uk/40559/

Source: PubMed

Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi

Authors: Mahanty, S., Pillay, K., Hardouin, E.A., Andreou, D., Cvitanovic, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: MARINE POLLUTION BULLETIN

Volume: 209

eISSN: 1879-3363

ISSN: 0025-326X

DOI: 10.1016/j.marpolbul.2024.117233

https://eprints.bournemouth.ac.uk/40559/

Source: Web of Science (Lite)

Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi

Authors: Mahanty, S., Pillay, K., Hardouin, E., Andreou, D., Cvitanovic, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: Marine Pollution Bulletin

Volume: 209

Pages: 117233

Publisher: Elsevier

eISSN: 1879-3363

ISSN: 0025-326X

DOI: 10.1016/j.marpolbul.2024.117233

Abstract:

This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20–9.7), Geo-accumulation indices (− 2.19–1.19), Contamination Factors (0.61–3.18), and Pollution Load Indices (1.04–1.32). Toxic metal ions, including Pb, Cu, Ni, Cd, Zn, and Cr, were identified as key contributors to compromised sediment quality. These metals inhibit crucial sediment enzymes, such as CMC-cellulase, β-glucosidase, aryl sulfatase, urease, and phosphatases, essential for nutrient cycling and organic matter decomposition. A negative correlation was found between heavy metals and biodiversity, as indicated by the Shannon index, and a similar trend was observed with fungal load. The study highlights the adverse effects of persistent trace metals on the fungal community, potentially disrupting the mangrove ecosystem and suggests using manglicolous fungi as biological indicators of environmental health.

https://eprints.bournemouth.ac.uk/40559/

https://www.sciencedirect.com/journal/marine-pollution-bulletin

Source: Manual

Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi.

Authors: Mahanty, S., Pillay, K., Hardouin, E.A., Andreou, D., Cvitanović, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: Marine pollution bulletin

Volume: 209

Issue: Pt B

Pages: 117233

eISSN: 1879-3363

ISSN: 0025-326X

DOI: 10.1016/j.marpolbul.2024.117233

Abstract:

This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20-9.7), Geo-accumulation indices (-2.19-1.19), Contamination Factors (0.61-3.18), and Pollution Load Indices (1.04-1.32). Toxic metal ions, including Pb, Cu, Ni, Cd, Zn, and Cr, were identified as key contributors to compromised sediment quality. These metals inhibit crucial sediment enzymes, such as CMC-cellulase, β-glucosidase, aryl sulfatase, urease, and phosphatases, essential for nutrient cycling and organic matter decomposition. A negative correlation was found between heavy metals and biodiversity, as indicated by the Shannon index, and a similar trend was observed with fungal load. The study highlights the adverse effects of persistent trace metals on the fungal community, potentially disrupting the mangrove ecosystem and suggests using manglicolous fungi as biological indicators of environmental health.

https://eprints.bournemouth.ac.uk/40559/

Source: Europe PubMed Central

Whispers in the mangroves: Unveiling the silent impact of potential toxic metals (PTMs) on Indian Sundarbans fungi

Authors: Mahanty, S., Pillay, K., Hardouin, E., Andreou, D., Cvitanović, M., Darbha, G.K., Mandal, S., Chaudhuri, P. and Majumder, S.

Journal: Marine Pollution Bulletin

Volume: 209

Issue: B

Publisher: Elsevier

ISSN: 0025-326X

Abstract:

This study investigates sediment samples from the Indian Sundarbans' mangrove habitat, where most samples were alkaline and hypersaline, except for one acidic sample. Elemental analysis revealed poor sediment quality, with elevated Enrichment Factors (2.20–9.7), Geo-accumulation indices (− 2.19–1.19), Contamination Factors (0.61–3.18), and Pollution Load Indices (1.04–1.32). Toxic metal ions, including Pb, Cu, Ni, Cd, Zn, and Cr, were identified as key contributors to compromised sediment quality. These metals inhibit crucial sediment enzymes, such as CMC-cellulase, β-glucosidase, aryl sulfatase, urease, and phosphatases, essential for nutrient cycling and organic matter decomposition. A negative correlation was found between heavy metals and biodiversity, as indicated by the Shannon index, and a similar trend was observed with fungal load. The study highlights the adverse effects of persistent trace metals on the fungal community, potentially disrupting the mangrove ecosystem and suggests using manglicolous fungi as biological indicators of environmental health.

https://eprints.bournemouth.ac.uk/40559/

Source: BURO EPrints