Effect of arsenate As (V) on the biomarkers of Myriophyllum alterniflorum in oligotrophic and eutrophic conditions

Chemosphere
M KrayemP Labrousse

Abstract

Alternate watermilfoil, Myriophyllum alterniflorum is an aquatic macrophyte found in the Limousin rivers (France) whose potential for biomonitoring of metal pollution has been demonstrated. The objective of the present study carried out in vitro was to identify biomarkers for an early detection of the pollution by a metalloid As (V) in eutrophic and oligotrophic conditions. A synthetic medium of similar composition to the waters of the River Vienne was prepared. The morphological development of watermilfoil was monitored for 30 days, with or without contamination by 100 μg L(-1) As (V). In addition, the mineralization of plants and the analysis of biomarkers (chlorophylls, photosynthetic and respiratory intensities …) were investigated after 21 days. Our results indicated that eutrophic medium, induced a decrease in chlorophyll pigments, in growth and an increase in H2O2 compared to the oligotrophic medium. While, the presence of As (V), led to a decrease in the osmotic potential, pigment content, photosynthesis and respiration rates and an inhibition of shoot branching of plants in both conditions. However, a significant increase in H2O2 content was noted in the eutrophic medium. Finally, As (V) was found to be more accumulate...Continue Reading

References

Mar 11, 2000·Plant Physiology·M E SchmögerE Grill
Sep 18, 2002·Trends in Plant Science·Ron Mittler
Feb 24, 2009·Environment International·Virender K Sharma, Mary Sohn
Nov 26, 2010·Chemosphere·Tommaso PisaniStefano Loppi
Jan 11, 2011·Biochemistry·Dan S Tawfik, Ronald E Viola
Jun 12, 2012·Frontiers in Physiology·Patrick M Finnegan, Weihua Chen

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Citations

Feb 27, 2016·Environmental Science and Pollution Research International·Maha KrayemPascal Labrousse
Sep 20, 2018·Bulletin of Environmental Contamination and Toxicology·Raphaël DecouDavid Delmail
Aug 7, 2020·Environmental Science and Pollution Research International·Zhuo ZhenYuan Zhao

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