Soil Science and Environment最新文献

{"title":"Phosphate deficient-induced &lt;i&gt;OsLPR5&lt;/i&gt; mediates the accumulation and distribution of phenanthrene in rice under Pi-deficiency","authors":"Mengyuan Cui, Chenxu Zhao, Qingqi Lin, Xiaowen Wang, Yafei Sun, Xing Shen, Peimei He, S Samuel Yang, Xu Huang, Zhi Hu, Yue Cao, Shubin Sun","doi":"10.48130/sse-2023-0008","DOIUrl":"https://doi.org/10.48130/sse-2023-0008","url":null,"abstract":"Polycyclic aromatic hydrocarbons (PAHs) come into intimate contact with vegetation, and the roots of diverse plant species can actively take up these substances. However, the mechanism for PAHs accumulation by plants is little understood. Playing a crucial role in plant growth, phosphorous (P) has been linked to the uptake and acropetal translocation of PAHs. <italic>OsLPR5</italic>, <italic>Low Phosphate Root 5</italic>, was induced in the roots under phosphate (Pi) deficiency and played an important role in the maintenance of Pi homeostasis. Here, the regulation of <italic>OsLPR5</italic> on phenanthrene (Phe, a model PAHs) accumulation under the influence of Pi was investigated in rice. Compared with Pi-deficiency, the concentration of Phe at Pi-sufficiency was significantly lower under Phe in both the root and shoot of wild-type rice. Expression of <italic>OsLPR5</italic> by quantitative real-time RT-PCR was induced significantly under Phe in the roots, and not in the shoots. Under different Pi supplies, the phenotypic traits of <italic>oslpr5</italic> seedlings grown hydroponically in a medium supplemented with Phe showed distinct changes. Under Pi-deficiency, <italic>oslpr5</italic> lines exhibited significant changes in Phe concentration compared to the wild-type. The roots of <italic>oslpr5</italic> lines showed a significant decrease (30.96-36.45%) in Phe concentration, accompanied by an increase (74.99-93.36%) in the translocation factor. In the culms and flag leaves, Phe concentration significantly decreased (37.40-44.06% and 13.39-27.63% respectively) in <italic>oslpr5</italic> lines compared to the wild-type. However, Phe concentration significantly increased (70.47-75.30%) in the seeds of <italic>oslpr5</italic> lines. Together, these results provide some insight into the mechanisms by which Pi may be involved in the regulation of <italic>OsLPR5</italic> on the uptake and accumulation of Phe in rice.","PeriodicalId":489545,"journal":{"name":"Soil Science and Environment","volume":"2 1","pages":"0-0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}