Arsenic translocation in rice cultivation and its implication for human health

Arsenic (As) is a toxic metalloid for plants and animals. Large amounts of As have been released in arable soils through anthropogenic activities, use of contaminated irrigation water, and mining among others. Rice (Oryza sativa L.) is one of the most consumed cereals worldwide; it is an important r...

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Autores principales:	Bastías,José M, Beldarrain,Tatiana
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2016
Materias:	Inorganic arsenic Oryza sativa total arsenic translocation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100016
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spelling	oai:scielo:S0718-583920160001000162018-10-01Arsenic translocation in rice cultivation and its implication for human healthBastías,José MBeldarrain,Tatiana Inorganic arsenic Oryza sativa total arsenic translocation Arsenic (As) is a toxic metalloid for plants and animals. Large amounts of As have been released in arable soils through anthropogenic activities, use of contaminated irrigation water, and mining among others. Rice (Oryza sativa L.) is one of the most consumed cereals worldwide; it is an important route of exposure for As. The objective of this review was to explain possible mechanisms involved in As absorption that contaminate rice plant through the soil and water, and to mention studies that have been conducted to minimize the risk of human exposure. The root is able to absorb and accumulate large amounts of As, but only small amounts are translocated to the grain and tillers. Arsenic concentrations in rice tissues decrease from the root to the grain. Information about As translocation in rice is sparse and research is directed toward studying the molecular mechanism of absorption and accumulation in the grain because it has not yet been explained. Some rice varieties have been developed that are resistant to high soil As concentrations and are not able to translocate the metalloid toward the root. Many studies suggest that not all ingested inorganic As accumulated in the gastrointestinal tract is absorbed into the bloodstream and produces toxicity. It is therefore recommended that As bioavailability be evaluated in imported or domestic Chilean rice to more precisely estimate human health riskinfo:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.76 n.1 20162016-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100016en10.4067/S0718-58392016000100016
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Inorganic arsenic Oryza sativa total arsenic translocation
spellingShingle	Inorganic arsenic Oryza sativa total arsenic translocation Bastías,José M Beldarrain,Tatiana Arsenic translocation in rice cultivation and its implication for human health
description	Arsenic (As) is a toxic metalloid for plants and animals. Large amounts of As have been released in arable soils through anthropogenic activities, use of contaminated irrigation water, and mining among others. Rice (Oryza sativa L.) is one of the most consumed cereals worldwide; it is an important route of exposure for As. The objective of this review was to explain possible mechanisms involved in As absorption that contaminate rice plant through the soil and water, and to mention studies that have been conducted to minimize the risk of human exposure. The root is able to absorb and accumulate large amounts of As, but only small amounts are translocated to the grain and tillers. Arsenic concentrations in rice tissues decrease from the root to the grain. Information about As translocation in rice is sparse and research is directed toward studying the molecular mechanism of absorption and accumulation in the grain because it has not yet been explained. Some rice varieties have been developed that are resistant to high soil As concentrations and are not able to translocate the metalloid toward the root. Many studies suggest that not all ingested inorganic As accumulated in the gastrointestinal tract is absorbed into the bloodstream and produces toxicity. It is therefore recommended that As bioavailability be evaluated in imported or domestic Chilean rice to more precisely estimate human health risk
author	Bastías,José M Beldarrain,Tatiana
author_facet	Bastías,José M Beldarrain,Tatiana
author_sort	Bastías,José M
title	Arsenic translocation in rice cultivation and its implication for human health
title_short	Arsenic translocation in rice cultivation and its implication for human health
title_full	Arsenic translocation in rice cultivation and its implication for human health
title_fullStr	Arsenic translocation in rice cultivation and its implication for human health
title_full_unstemmed	Arsenic translocation in rice cultivation and its implication for human health
title_sort	arsenic translocation in rice cultivation and its implication for human health
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392016000100016
work_keys_str_mv	AT bastiasjosem arsenictranslocationinricecultivationanditsimplicationforhumanhealth AT beldarraintatiana arsenictranslocationinricecultivationanditsimplicationforhumanhealth
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Arsenic translocation in rice cultivation and its implication for human health

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