Low Arsenic Rice Breeding

Overview

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Key numbers

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• As content of groundwater in Kandal Province, Cambodia, was as high as 178 µg/L (10);
• rice grain by 77% (38)), microbial remediation (the application of iron-oxidizing bacteria
• reduced the As content in rice grain by 62.5% (39)) and agronomic measures (under contin-
• by 84% and 81%, respectively (18,23)) are more suitable and convenient for application
• Table 1. Previously detected QTLs conferring As tolerance in rice.
• Table 2. Functional genes controlling As uptake, transport and metabolism in rice.
• scription factor) negatively regulates the As content of rice shoots (Table 2) (78). Besides
• (i.e., high As concentrations, HACs) and phosphate transporters (PTs) (Figure 1, Table 2).
• HAC4. VOZs consist of proteins encoded by genes VOZ1 and VOZ2. For details, please see Table 2.
• Plants 2025, 14, x FOR PEERtails, please see Table 2. As(V),arsenate,
• in rice, and in the majority of these cases, candidate genes were not further mined (Table 1).
• Although some important functional genes have been found (Figure 1, Table 2), only a
• factor VOZs) reduced the As content in rice grains (Table 2) and hypothesized that OsVOZs
• the unclassified functional genes (Table 2). OsNPF5.8 (84), OsVOZ1 (86), OsVOZ2 (86)
• metabolism in rice, are listed in Table 2. They have been well described by Mawia et al. (2)
• decreased the As content (16–51%) and increased the selenium content (37–171%), sulfur
• content (67–81%) and other nutritional elements (including nitrogen, potassium, calcium,
• As-contaminated soils) (Table 2).

Methods (brief)

• zhongzhengzheng@caas.cn (Z.Z.); huguocheng@caas.cn (G.H.)
• • Correspondence: zhangpeng03@caas.cn (P.Z.); htonghz@126.com (H.T.); Tel./Fax: +86-571-6337-0379 (P.Z.);
• organic forms like monomethyl arsenic acid (MMA), dimethyl arsenic acid (DMA) and
• Padi Perak × Koshihikari DMA concentrations in
• Note: DH, AMP, TIL, BRILs, RIL, SL, RL, CHC, SFW, RFW and DMA are abbreviations for double haploid lines,
• cal method, is employed to characterize gene association patterns among samples, which
• As(V), As(III), MMA, DMA, TMA, PC, GSH, NIPs, PIPs, PTs, ABCs, PCSs, Grxs, HACs and VOZs
• As(III), MMA, DMA, TMA,
• are abbreviations for arsenite, monomethyl arsenicPC, GSH,
• logical method, is employed to characterize gene association patterns among samples,
• ment. Except for the differences in samples themselves (e.g., biological noise caused by
• 5. Lemos Batista, B.; Nigar, M.; Mestrot, A.; Alves Rocha, B.; Barbosa Júnior, F.; Price, A.H.; Raab, A.; Feldmann, J. Identification and

Implications

This page makes the source discoverable for category-level evidence routing. Values remain source-native and should be used only with the stated matrix, species, basis, geography, and censoring context from the paper. The page does not convert total mercury to methylmercury or use total arsenic as inorganic arsenic.

Wiki pages this source may touch

• Fish — marine, predatory (tuna, swordfish, shark, king mackerel)
• Fish — marine, non-predatory (sardines, anchovies, salmon, cod)
• Cadmium
• Arsenic
• Aluminum

Verification notes

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Update history

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