https://scholars.lib.ntu.edu.tw/handle/123456789/414334
標題: | Nonredundant regulation of rice arbuscular mycorrhizal symbiosis by two members of the PHOSPHATE TRANSPORTER1 gene family | 作者: | SHU-YI YANG Grønlund, Mette Jakobsen, Iver Grotemeyer, Marianne Suter Rentsch, Doris Miyao, Akio Hirochika, Hirohiko Kumar, Chellian Santhosh Sundaresan, Venkatesan Salamin, Nicolas Catausan, Sheryl Mattes, Nicolas Heuer, Sigrid Paszkowski, Uta |
公開日期: | 1-十月-2012 | 出版社: | AMER SOC PLANT BIOLOGISTS | 卷: | 24 | 期: | 10 | 起(迄)頁: | 4236 | 來源出版物: | Plant Cell | 摘要: | Pi acquisition of crops via arbuscular mycorrhizal (AM) symbiosis is becoming increasingly important due to limited highgrade rock Pi reserves and a demand for environmentally sustainable agriculture. Here, we show that 70% of the overall Pi acquired by rice (Oryza sativa) is delivered via the symbiotic route. To better understand this pathway, we combined genetic, molecular, and physiological approaches to determine the specific functions of two symbiosis-specific members of the PHOSPHATE TRANSPORTER1 (PHT1) gene family from rice, ORYsa;PHT1;11 (PT11) and ORYsa;PHT1;13 (PT13). The PT11 lineage of proteins from mono- and dicotyledons is most closely related to homologs from the ancient moss, indicating an early evolutionary origin. By contrast, PT13 arose in the Poaceae, suggesting that grasses acquired a particular strategy for the acquisition of symbiotic Pi. Surprisingly, mutations in either PT11 or PT13 affected the development of the symbiosis, demonstrating that both genes are important for AM symbiosis. For symbiotic Pi uptake, however, only PT11 is necessary and sufficient. Consequently, our results demonstrate that mycorrhizal rice depends on the AM symbiosis to satisfy its Pi demands, which is mediated by a single functional Pi transporter, PT11. © 2012 American Society of Plant Biologists. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/414334 | ISSN: | 10404651 | DOI: | https://api.elsevier.com/content/abstract/scopus_id/84870659363 10.1105/tpc.112.104901 |
顯示於: | 植物科學研究所 |
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