Phytoavailability of Geogenic Arsenic and Its Partitioning in Soil: a Case Of Study in a Thermal Area of Central Italy

Silvia Rita Stazi, Roberto Mancinelli, Enrica Allevato, Rosita Marabottini, Enio Campiglia, Sara Marinari

Abstract


Arsenic (As) is an ubiquitous metalloid that is introduced into the environment from both anthropogenic and geochemical sources. The As can be introduced in food chain through plants grown on polluted soil and/or contaminated irrigation water. The element may impair plant growth, moreover its toxicity and cancerogenicity poses a threat for human health. Most plants tolerate soil As concentrations up to 50 mg kg−1. However, at higher levels some plants might be negatively affected, while some others develop strategies to adapt to these conditions. It is known that As absorption, translocation and accumulation depend on plant species. The As tends to concentrate mainly in plant roots and old leaves, with a minor concentration in stems and young leaves, and the lowest concentrations is in fruits. In this study soil As mobility, tomato phytoavailability, and As plant partitioning were measured in an naturally As reach agricultural area (57.49 mg kg-1).  The results show that As compounds mainly accumulate in the roots (2.85 mg kg-1), whereas only a small portion is translocated to fruits (0.08 mg kg-1) making the risk for human health negligible.


Keywords


Arsenic; tomato uptake; translocation; partitioning

Full Text:

PDF (English)

References


ABREU M.M., TAVARES M.T., BATISTA M.J. (2008) Potential use of Erica andevalensis and Erica australis in phytoremediation of sulphide mine environments: São Domingos, Portugal. Journal of Geochemical Exploration, 96:210–222.

BURLÓ F., GUIJARRO I., CARBONELL-BARRACHINA A.A., VALERO D., MARTÍNEZ-SÁNCHEZ F. (1999) Arsenic species: effects on and accumulation by tomato plants. Jour-nal of Agricultural and Food Chemistry, 47:1247-1253.

CARBONELL-BARRACHINA A.A., AARABI M.A., DELAUNE R.D., GAMBRELL R.P., PATRICK W.H. (1998). The influence of arsenic chemical form and concentration on Spartina patens and Spartina alterniflora growth and tissue arsenic concentration. Plant Soil 198:33-43..

EUROPEAN FOOD SAFETY (2010) Authority Scientific Opinion on Arsenic in Food. EFSA Journal 7(10):1351.

FINNEGAN P. M., CHEN W. (2012) Arsenic toxicity: The effects on plant metabolism. Frontiers in Physiology, 3:182. doi: 10.3389/fphys.2012.00182.

GARG N., SINGLA P. (2011) Arsenic toxicity in crop plants: physiological effects and tol-erance mechanisms. Environmental Chemistry Letters, 9:303–321. DOI 10.1007/s10311-011-0313-7.

JIA Y., HUANG H. CHEN Z., ZHU Y.G. (2014) Arsenic uptake by rice is influenced by mi-crobe-mediated arsenic redox changes in the rhizosphere. Environmental Science & Tech-nology, 48:1001-1007.

LIU C.W., CHEN Y.Y., KAO Y.H., MAJI S.K. (2014) Bioaccumulation and translocation of arsenic in the ecosystem of the Guandu Wetland, Taiwan. Wetlands, 34:129-140.

MARABOTTINI R., STAZI S.R., PAPP R., GREGO S., MOSCATELLI M.C. (2013) Mobili-ty and distribution of arsenic in contaminated mine soils and its effects on the microbial pool. Ecotoxicology and environmental safety, 96:147-153.

MARMIROLI M., PIGONI V., SAVO-SARDARO M.L., MARMIROLI N. (2014) The ef-fect of silicon on the uptake and translocation of arsenic in tomato (Solanum lycopersicum L.). Environmental and Experimental Botany, 99:9–17.

MEHARG A.A. (1994) Integrated tolerance mechanisms – constitutive and adaptive plant- responses to elevated metal concentrations in the environment. Plant, Cell & Envi-ronment 17: 989–993

MEHARG A.A., MACNAIR M.R. (1992) Suppression of the high-affinity phosphate-uptake system–a mechanism of arsenate tolerance in Holcus lanatus L. Journal of Exper-imental Botany, 43:519–524.

SHARMA I. (2012) Arsenic induced oxidative stress in plants. Biologia, 67:447–453.

STAZI S.R., MARABOTTINI R., PAPP R., MOSCATELLI, M.C. (2015) Arsenic in soil: availabilityand interactions with soil microorganisms. In: “I. Sherameti, A. Varma (eds.). Soil Biology ‘Heavy Metal Contamination of Soils: Monitoring and Remediation”. Springer International Publishing Switzerland, 44 (6):113-126.

VIOLANTE A, RICCIARDELLA M., PIGNA M., CAPASSO R., Effects of organic ligands on the sorption of trace elements onto metal oxides and organo-mineral complexes. In: "Biogeochemistry of Trace Elements in the Rhizosphere”. Huang, P.M., Gobran, G.R., Elsevier, B.V. (Eds), 157-182 (2005).

WALSH L.M., D.R. KEENEY, Behaviour and phytotoxicity of inorganic arsenicals insoils, In: E.A. Woolson (ed.). Arsenical Pesticides. 35-52 (1975). American Chemical Society, Washington DC.

ZHAO F.J., MA J.F., MEHARG A.A., McGRATH S.P.(2009) Arsenic uptake and metabo-lism in plants. New Phytologist. 181:777-794.




DOI: 10.6092/issn.2281-4485/6305

Refbacks

  • There are currently no refbacks.


Copyright (c) 2016 Silvia Rita Stazi, Roberto Mancinelli, Enrica Allevato, Rosita Marabottini, Enio Campiglia, Sara Marinari

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.