Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity
Phosphorus treatment can reduce Cd accumulation and Cd toxicity in rice, but alterations in the internal regulatory network of rice during this process have rarely been reported. We have removed the effect of cadmium phosphate precipitation from the hydroponic system, treated a pair of different Cd-...
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MDPI AG
2022-09-01
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| Series: | Current Issues in Molecular Biology |
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| Online Access: | https://www.mdpi.com/1467-3045/44/9/279 |
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| author | Qiaoyu Chen Yanyan Hu Lijun Yang Benguo Zhu Feng Luo |
| author_facet | Qiaoyu Chen Yanyan Hu Lijun Yang Benguo Zhu Feng Luo |
| author_sort | Qiaoyu Chen |
| collection | DOAJ |
| description | Phosphorus treatment can reduce Cd accumulation and Cd toxicity in rice, but alterations in the internal regulatory network of rice during this process have rarely been reported. We have removed the effect of cadmium phosphate precipitation from the hydroponic system, treated a pair of different Cd-response rice varieties with different levels of phosphorus and cadmium and examined the changes in physiological indicators and regulatory networks. The results demonstrated that phosphorus treatment significantly reduced Cd accumulation in both types of rice, although the antioxidant systems within the two types of rice produced opposite responses. Overall, 3 mM phosphorus treatment to Cd-N decreased the expression of <i>OsIAA17</i> and <i>OsACO1</i> by 32% and 37%, respectively, while increasing the expression of <i>OsNR2</i> by 83%; these three genes regulate the synthesis of auxin, ethylene, and nitric oxide in rice. IAA and NO levels in rice shoots increased by 24% and 96%, respectively, and these changes contribute to Cd detoxification. The cadmium transporter genes <i>OsHMA2</i>, <i>OsIRT1</i>, and <i>OsABCC1</i> were significantly down-regulated in Cd-N roots after triple phosphorus treatment. These data suggest that phosphorus treatment can reduce Cd accumulation and enhance Cd resistance in rice by affecting the expression of signaling molecules. |
| first_indexed | 2024-03-10T00:22:43Z |
| format | Article |
| id | doaj.art-56d1069e66f94f6f8315e599ee915083 |
| institution | Directory Open Access Journal |
| issn | 1467-3037 1467-3045 |
| language | English |
| last_indexed | 2024-03-10T00:22:43Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-56d1069e66f94f6f8315e599ee9150832023-11-23T15:39:13ZengMDPI AGCurrent Issues in Molecular Biology1467-30371467-30452022-09-014494070408610.3390/cimb44090279Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium ToxicityQiaoyu Chen0Yanyan Hu1Lijun Yang2Benguo Zhu3Feng Luo4Chongqing Landscape and Gardening Research Institute, Jiulongpo, Chongqing 401329, ChinaChongqing Landscape and Gardening Research Institute, Jiulongpo, Chongqing 401329, ChinaChongqing Landscape and Gardening Research Institute, Jiulongpo, Chongqing 401329, ChinaChongqing Landscape and Gardening Research Institute, Jiulongpo, Chongqing 401329, ChinaChongqing Key Laboratory of Bioresource for Energy, College of Resources and Environment, Southwest University, Beibei, Chongqing 400715, ChinaPhosphorus treatment can reduce Cd accumulation and Cd toxicity in rice, but alterations in the internal regulatory network of rice during this process have rarely been reported. We have removed the effect of cadmium phosphate precipitation from the hydroponic system, treated a pair of different Cd-response rice varieties with different levels of phosphorus and cadmium and examined the changes in physiological indicators and regulatory networks. The results demonstrated that phosphorus treatment significantly reduced Cd accumulation in both types of rice, although the antioxidant systems within the two types of rice produced opposite responses. Overall, 3 mM phosphorus treatment to Cd-N decreased the expression of <i>OsIAA17</i> and <i>OsACO1</i> by 32% and 37%, respectively, while increasing the expression of <i>OsNR2</i> by 83%; these three genes regulate the synthesis of auxin, ethylene, and nitric oxide in rice. IAA and NO levels in rice shoots increased by 24% and 96%, respectively, and these changes contribute to Cd detoxification. The cadmium transporter genes <i>OsHMA2</i>, <i>OsIRT1</i>, and <i>OsABCC1</i> were significantly down-regulated in Cd-N roots after triple phosphorus treatment. These data suggest that phosphorus treatment can reduce Cd accumulation and enhance Cd resistance in rice by affecting the expression of signaling molecules.https://www.mdpi.com/1467-3045/44/9/279cadmium toxicityphosphorusantioxidant systemsignal molecules |
| spellingShingle | Qiaoyu Chen Yanyan Hu Lijun Yang Benguo Zhu Feng Luo Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity Current Issues in Molecular Biology cadmium toxicity phosphorus antioxidant system signal molecules |
| title | Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity |
| title_full | Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity |
| title_fullStr | Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity |
| title_full_unstemmed | Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity |
| title_short | Phosphorus Regulates the Level of Signaling Molecules in Rice to Reduce Cadmium Toxicity |
| title_sort | phosphorus regulates the level of signaling molecules in rice to reduce cadmium toxicity |
| topic | cadmium toxicity phosphorus antioxidant system signal molecules |
| url | https://www.mdpi.com/1467-3045/44/9/279 |
| work_keys_str_mv | AT qiaoyuchen phosphorusregulatesthelevelofsignalingmoleculesinricetoreducecadmiumtoxicity AT yanyanhu phosphorusregulatesthelevelofsignalingmoleculesinricetoreducecadmiumtoxicity AT lijunyang phosphorusregulatesthelevelofsignalingmoleculesinricetoreducecadmiumtoxicity AT benguozhu phosphorusregulatesthelevelofsignalingmoleculesinricetoreducecadmiumtoxicity AT fengluo phosphorusregulatesthelevelofsignalingmoleculesinricetoreducecadmiumtoxicity |