Tags

Type your tag names separated by a space and hit enter

Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst.
Ecotoxicol Environ Saf. 2022 Jan 01; 229:113078.EE

Abstract

Leptodictyum riparium, a widely distributed aquatic moss, can both tolerate and accumulate very high concentrations of toxic heavy metals, with only slight apparent damage. Here we report the effects on photosynthetic yield, glutathione (GSH), phytochelatin (PCn) synthesis, nitrogen metabolism and cellular localization of molecules rich in SH groups in L. riparium exposed in vitro to heavy metals. We simulated the concentrations of Cu, Zn, Cd, Pb detected in Regi Lagni, Italy, one of the most contaminated freshwater sites in Southern Europe, in the laboratory to test how the moss responds to heavy metal contamination. There was a steady decrease of photosynthetic efficiency correlated with the heavy metal concentrations and ultrastructural organization. All PCn levels increased significantly as the concentration of heavy metals increased, while the GSH levels did not appear to be particularly affected. A significant increase of GDH and NADH-GOGAT activities increased with increasing heavy metal concentration. Immunoblotting analysis revealed an increase of the chl-GS2 while no significant increase was detected in the cyt-GS1. These results give insight into the molecular events underlying the metal-tolerance of the aquatic moss L. riparium exposed to environmental heavy metal concentrations.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Maresca V
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy.
Bellini E
Department of Biology, University of Pisa, 56126 Pisa, Italy.
Landi S
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy.
Capasso G
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy.
Cianciullo P
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy.
Carraturo F
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy.
Pirintsos S
Department of Biology, University of Crete, 71409 Heraklion, Greece; Botanical Garden, University of Crete, 741 00 Rethymnon, Greece.
Sorbo S
CeSMA, Microscopy Section, University of Naples "Federico II", 80126 Naples, Italy.
Sanità di Toppi L
Department of Biology, University of Pisa, 56126 Pisa, Italy.
Esposito S
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy. Electronic address: sergio.esposito@unina.it.
Basile A
Department of Biology, University of Naples "Federico II", 80126 Naples, Italy. Electronic address: adbasile@unina.it.

MeSH

BryophytaBryopsidaEnvironmental MonitoringFresh WaterGlutathioneMetals, Heavy

Pub Type(s)

Journal Article

Language

eng

PubMed ID

34929502

Citation

Maresca, Viviana, et al. "Biological Responses to Heavy Metal Stress in the Moss Leptodictyum Riparium (Hedw.) Warnst." Ecotoxicology and Environmental Safety, vol. 229, 2022, p. 113078.
Maresca V, Bellini E, Landi S, et al. Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst. Ecotoxicol Environ Saf. 2022;229:113078.
Maresca, V., Bellini, E., Landi, S., Capasso, G., Cianciullo, P., Carraturo, F., Pirintsos, S., Sorbo, S., Sanità di Toppi, L., Esposito, S., & Basile, A. (2022). Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst. Ecotoxicology and Environmental Safety, 229, 113078. https://doi.org/10.1016/j.ecoenv.2021.113078
Maresca V, et al. Biological Responses to Heavy Metal Stress in the Moss Leptodictyum Riparium (Hedw.) Warnst. Ecotoxicol Environ Saf. 2022 Jan 1;229:113078. PubMed PMID: 34929502.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biological responses to heavy metal stress in the moss Leptodictyum riparium (Hedw.) Warnst. AU - Maresca,Viviana, AU - Bellini,Erika, AU - Landi,Simone, AU - Capasso,Giorgia, AU - Cianciullo,Piergiorgio, AU - Carraturo,Federica, AU - Pirintsos,Stergios, AU - Sorbo,Sergio, AU - Sanità di Toppi,Luigi, AU - Esposito,Sergio, AU - Basile,Adriana, Y1 - 2021/12/17/ PY - 2021/10/15/received PY - 2021/12/06/revised PY - 2021/12/09/accepted PY - 2021/12/21/pubmed PY - 2022/1/12/medline PY - 2021/12/20/entrez KW - Glutathione KW - Heavy metal KW - Leptodictyum riparium KW - Nitrogen metabolism KW - Photosynthetic yield KW - Phytochelatin synthesis SP - 113078 EP - 113078 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 229 N2 - Leptodictyum riparium, a widely distributed aquatic moss, can both tolerate and accumulate very high concentrations of toxic heavy metals, with only slight apparent damage. Here we report the effects on photosynthetic yield, glutathione (GSH), phytochelatin (PCn) synthesis, nitrogen metabolism and cellular localization of molecules rich in SH groups in L. riparium exposed in vitro to heavy metals. We simulated the concentrations of Cu, Zn, Cd, Pb detected in Regi Lagni, Italy, one of the most contaminated freshwater sites in Southern Europe, in the laboratory to test how the moss responds to heavy metal contamination. There was a steady decrease of photosynthetic efficiency correlated with the heavy metal concentrations and ultrastructural organization. All PCn levels increased significantly as the concentration of heavy metals increased, while the GSH levels did not appear to be particularly affected. A significant increase of GDH and NADH-GOGAT activities increased with increasing heavy metal concentration. Immunoblotting analysis revealed an increase of the chl-GS2 while no significant increase was detected in the cyt-GS1. These results give insight into the molecular events underlying the metal-tolerance of the aquatic moss L. riparium exposed to environmental heavy metal concentrations. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/34929502/Biological_responses_to_heavy_metal_stress_in_the_moss_Leptodictyum_riparium__Hedw___Warnst_ DB - PRIME DP - Unbound Medicine ER -