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|a 10.1093/jxb/erad495
|2 doi
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|a eng
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|a Gui, Yuejing
|e verfasserin
|4 aut
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|a Genetic engineering low-arsenic and low-cadmium rice grain
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 28.03.2024
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|a Date Revised 28.03.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Rice is prone to take up the toxic elements arsenic (As) and cadmium (Cd) from paddy soil through the transporters for other essential elements. Disruption of these essential transporters usually adversely affects the normal growth of rice and the homeostasis of essential elements. Here we report on developing low-As and low-Cd rice grain through the co-overexpression of OsPCS1, OsABCC1, and OsHMA3 genes under the control of the rice OsActin1 promoter. Co-overexpression of OsPCS1 and OsABCC1 synergistically decreased As concentration in the grain. Overexpression of OsPCS1 also decreased Cd concentration in the grain by restricting the xylem-to-phloem Cd transport in node I, but paradoxically caused Cd hypersensitivity as the overproduced phytochelatins in OsPCS1-overexpressing plants suppressed OsHMA3-dependent Cd sequestration in vacuoles and promoted Cd transport from root to shoot. Co-overexpression of OsHAM3 and OsPCS1 overcame this suppression and complemented the Cd hypersensitivity. Compared with non-transgenic rice control, co-overexpression of OsABCC1, OsPCS1, and OsHMA3 in rice decreased As and Cd concentrations in grain by 92.1% and 98%, respectively, without causing any defect in plant growth and reproduction or of mineral nutrients in grain. Our research provides an effective approach and useful genetic materials for developing low-As and low-Cd rice grain
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|a Journal Article
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|a Arsenic
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|a OsABCC1
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|a OsHMA3
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|a OsPCS1
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|a cadmium
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|a phytochelatin
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|a rice
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|a vacuolar sequestration
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|a Cadmium
|2 NLM
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| 650 |
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|a 00BH33GNGH
|2 NLM
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| 650 |
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|a Arsenic
|2 NLM
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| 650 |
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|a N712M78A8G
|2 NLM
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| 650 |
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|a Membrane Transport Proteins
|2 NLM
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| 650 |
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|a Soil Pollutants
|2 NLM
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|a Soil
|2 NLM
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| 700 |
1 |
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|a Teo, Joanne
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tian, Dongsheng
|e verfasserin
|4 aut
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| 700 |
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|a Yin, Zhongchao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 75(2024), 7 vom: 27. März, Seite 2143-2155
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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|g volume:75
|g year:2024
|g number:7
|g day:27
|g month:03
|g pages:2143-2155
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|u http://dx.doi.org/10.1093/jxb/erad495
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