数字农科院2.0

Multiomics and machine learning unveil root exudate-microbiota interactions for cadmium control in rice

文献类型： 外文期刊

作者： 李烨;;侯捷;;刘孟琪;;杜兆林;;陈洪安;;刘国飞;;王雅君;;姚彦坡;;孙佩哲;;赵林;;安毅

关键词： 水稻镉污染;;根系分泌物;;根际微生物组;;相互作用;;机器学习

期刊名称： Journal of Environmental Management

ISSN： 0301-4797

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Human health and the safety of rice are threatened by cadmium (Cd) contamination in paddy soils. Although root exudates affect Cd bioavailability, the impact of complex mixtures of exudates and their interactions with rhizosphere bacteria on Cd speciation remain poorly understood. This study pioneers the “metabolome – microbiome – Cd speciation” coupling mechanism using a machine learning-assisted multi-omics analysis. Specifically, we characterized root-exudate composition, microbiome, and Cd speciation in rhizosphere soils of seven rice genotypes spanning low-to high-Cd accumulation. Of the 2659 root exudates identified, XGBoostSHAP pinpointed ten key exudates that significantly influenced acid-extractable Cd (ACD-Cd; R2 = 0.72 with grain Cd). Mantel testing revealed strong relationships (P < 0.01) between these key exudates and specific microbial taxa, including Candidatus Sulfobium mesophilum, Geotalea uraniireducens, and Hypericibacter terrae. Key exudates exhibited direct detrimental effects on ACD-Cd (λ = − 0.727 to − 0.486) and indirect effects through microbial recruitment (e.g., λ = − 0.282 for hydroxysuberic acid via Candidatus Sulfobium mesophilum), as determined by partial least squares-structural equation modeling (PLS-SEM) quantification of interaction pathways. Overall regulation was primarily influenced by direct effects, primarily through chelation or precipitation with Cd ions, thereby reducing their bioavailability. Additionally, certain exudates such as L-theanine and Pimelic acid attracted Candidatus Sulfobium mesophilum, which participates in the sulfur cycle and forms insoluble metal sulfide precipitates, reducing the solubility and bioavailability of Cd in soils. This insight offers new targets for rhizosphere engineering to reduce Cd accumulation in rice grains.

分类号：

  • 相关文献

[1]Global dynamics of streptococcus agalactiae antibiotic resistance: Past, present, and future. 房辉,,李东航,, 魏夏夏 ,,王仁东,, 苏燕燕 ,,于佑任,, 白航铭,, 高会会,,侯捷,,毛大庆,,罗义. 2025

[2]The Nicotiana benthamiana microtubule-associated E3 ubiquitin ligase degrades a host immune regulator and a viral effector to enhance antiviral defense. 王坤,,,,傅帅,,,,谭羽翀,,,,吴良,,,,王亚琴,,,,周雪平. 2025

[3]不同根系分泌物对土壤N2O 排放及同位素特征值的影响. 庄姗,,林伟,,丁军军,,郑欠,,寇馨月,,李巧珍,,李玉中*. 2020

[4]Fine-tuning of the CRWN2-NTL9 module to repress PR1 expression by a viral effector during geminivirus infection. 苏晨露,,,,王亚琴,,,,李方方,,,,梅玉振,,,,周雪平. 2025

[5]A key heavy metal-binding protein orchestrates plant resistance against a geminivirus. 刘慧,,,,胡涛,,,,李方方,,,,王亚琴,,,,梅玉振,,,,周雪平. 2025

[6]Divergence in global plant carbon use efficiency across data-driven estimates, satellite product, and process-oriented models. Lei He,,,,Josep Peñuelas,,,,Jingfeng Xiao,,,,Xiaolu Tang,,,,Yue He,,,,Menglin Si,,,,Zhao-Liang Li. 2025

[7]Reconstruction of cloudy land surface temperature by combining surface energy balance theory and solar-cloud-satellite geometry. Wenhui Du,,,,Zhao-Liang Li,,,,Zhihao Qin,,,,Jinlong Fan,,,,Xiangyang Liu,,,,Chunliang Zhao,,,,Kun Cao. 2025

[8]Contrasting temporal dynamics of land surface temperature response to different types of forest loss. Jing Li,,,,Zhao-Liang Li,,,,Xiangyang Liu,,,,Yitao Li,,,,Meng Liu,,,,Nanshan You,,,,Hua Wu,,,,Lei He,,,,Menglin Si,,,,Ronglin Tang,,,,Chenghu Zhou,,,,Wei Zhao,,,,Si-Bo Duan,,,,Pei Leng,,,,Wenqi Liu,,,,Enyu Zhao,,,,Bo-Hui Tang,,,,Zhenong Jin. 2025

[9]Key genes and mechanisms underlying natural variation of silique length in oilseed rape (Brassica napus L.) germplasm. Quaid Hussain, Jiepeng Zhan, Huabing Liang, Xinfa Wang, Guihua Liu, Jiaqin Shi, Hanzhong Wang. 2021

[10]Engineering plants using diverse CRISPR-associated proteins and deregulation of genome-edited crops. Zaman, Qamar U.,Raza, Ali,Lozano-Juste, Jorge,Chao, Li,Jones, Michael G. K.,Wang, Hua-Feng,Varshney, Rajeev K.. 2024

[11]上部烟叶灰分及其钙、镁、硫、磷含量与烟叶品质的关系及近红外模型研究. 付秋娟,,郝贤伟,,杜咏梅,,毕一鸣,,孙婷婷. 2025

[12]Evaluation of different clean heat supply modes based on crop straws in the rural areas of Northern China. 霍丽丽,,姚宗路,,贾吉秀,,赵立欣,,丛宏斌,,孟海波,,袁艳文. 2020

[13]Development and characterization of chromosome segment substitution lines derived from Oryza rufipogon in the genetic background of O. sativa spp. indica cultivar 9311. 乔卫华,,齐兰,,程志军,,苏龙,,李静,,孙妍,,任军芳,,郑晓明,,杨庆文. 2016

[14]OsCOL16, encoding a CONSTANS-like protein, represses flowering by up-regulating Ghd7, expression in rice. 吴玮勋,,郑晓明,,陈代波,,张迎新,,马薇薇,,张欢,,孙连平,,杨峥赋,,赵春德,,詹晓德,,沈喜红,,于萍,,付亚平,,朱珊珊,,曹立永,,程式花. 2017

[15]An egg parasitoid assesses host egg quality from afar using oviposition-induced plant volatiles. Tian, Zhiqiang,Wang, Yuanyuan,Sun, Tao,Hu, Xiaoyun,Hao, Wanting,Zhao, Te,Wang, Yanan,Zhang, Lei,Jiang, Xingfu,Turlings, Ted C. J.,Li, Yunhe. 2025

[16]Regulation of plant immunity through histone H3 β-hydroxybutyrylation-mediated transcriptional control. 徐秋涛,,陈正庭,,王瑞,,,,马瑄,,,,段宇航,,,,海杜,,,,陈静,,,,程仲毅,,,,郑路,,,,黄俊斌,,,,张积森,,,,赵毓,,,,陈晓洋. 2025

[17]A glutamyl–tRNA reductase and its binding protein promote transitory starch biosynthesis and enhance grain quality and yield in rice. 段影青,李晓雪,马刘洋,焦桂爱,操瑞节,董楠楠,李欣伟,王梓航,王平,唐绍清,魏祥进,胡培松. 2025

[18]Epi-transcriptome analysis reveals the lack of N6-methyladenosine modification in two RNA viruses infecting watermelon. 潘福安,,,,荆嘉贤,,,, Yanhong Qiu,,,,Maoying Li,,,,周雪平,,,,李少芳. 2025

[19]Machine Learning-Driven Prediction of Nitrogen Loss in Organic Solid Waste Composting. Haoran Mi, Dawei Gao, Deling Yuan, Xiao Liu, Lili Gao, Shengping Li, Yuanwang Liu. 2025

[20]黄曲霉毒素阻控与花生超级结瘤耦合效应研究初报. 周扬,,岳晓凤,,唐晓倩,,闫洪林,,张奇,,李培武. 2021

作者其他论文 更多>>