Arsenic speciation in soil-water system and their uptake by rice (Oryza sativa)
Paper
Paper/Presentation Title | Arsenic speciation in soil-water system and their uptake by rice (Oryza sativa) |
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Presentation Type | Paper |
Authors | Kumarathilaka, P., Bundschuh, J., Seneweera, S. and Meharg, A. A. |
Journal or Proceedings Title | Environmental Arsenic in a Changing World (As2018) |
Journal Citation | pp. 289-290 |
Page Range | 289-290 |
Number of Pages | 2 |
Year | 2018 |
Publisher | CRC Press |
Place of Publication | Netherlands |
ISSN | 1876-6218 |
ISBN | 9781138486096 |
Digital Object Identifier (DOI) | https://doi.org/10.1201/9781351046633-113 |
Web Address (URL) of Paper | https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781351046633-113/arsenic-speciation-soil-water-system-uptake-rice-oryza-sativa-kumarathilaka-bundschuh-seneweera-meharg |
Web Address (URL) of Conference Proceedings | https://www.taylorfrancis.com/books/oa-edit/10.1201/9781351046633/environmental-arsenic-changing-world-huaming-guo-prosun-bhattacharya-arslan-ahmad-jochen-bundschuh-ravi-naidu-yongguan-zhu |
Conference/Event | 7th International Congress and Exhibition on Arsenic in the Environment (AS 2018) |
Event Details | 7th International Congress and Exhibition on Arsenic in the Environment (AS 2018) Parent International Congress on Arsenic in the Environment (AS) Event Date 01 to end of 06 Jul 2018 Event Location Beijing, China |
Abstract | Rice is the main staple food for billions people worldwide. Geogenic and anthropogenic sources lead to concentration of As, in particular, above the plow pan of paddy soils. Flooded conditions increase the As concentrations in paddy soil-water system above those of non-flooded conditions. Formation of rice root plaque, availability of metal (hydr)oxides (i.e., Fe and Mn), dissolved organic carbon (DOC), competing ions (i.e., P and Si), and microorganisms play an important role in As speciation and distribution in rice rhizosphere and subsequent uptake by rice plant. Arsenic species are acquired by rice roots through the pathways for nutrients and metabolized via a variety of mechanisms. A number of metabolic pathways including As(III) efflux, and As-thiol complexation and sequestration may decrease As burden in rice tissues. |
Keywords | Anthropogenic sources; Arsenic speciation; Dissolved organic carbon; Flooded conditions; Metabolic pathways; Non-flooded conditions; Rice (oryza sativa); Soil water systems |
Contains Sensitive Content | Does not contain sensitive content |
Funder | Department of Agriculture, Fisheries and Forestry, Australian Government |
Byline Affiliations | University of Southern Queensland |
Queen's University Belfast, United Kingdom |
https://research.usq.edu.au/item/yy8v0/arsenic-speciation-in-soil-water-system-and-their-uptake-by-rice-oryza-sativa
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