Nonredundant Regulation of Rice Arbuscular Mycorrhizal Symbiosis by Two Members of the PHOSPHATE TRANSPORTER1 Gene Family.

Details

Serval ID
serval:BIB_33C9D7D887E6
Type
Article: article from journal or magazin.
Collection
Publications
Title
Nonredundant Regulation of Rice Arbuscular Mycorrhizal Symbiosis by Two Members of the PHOSPHATE TRANSPORTER1 Gene Family.
Journal
Plant Cell
Author(s)
Yang S.Y., Grønlund M., Jakobsen I., Grotemeyer M.S., Rentsch D., Miyao A., Hirochika H., Kumar C.S., Sundaresan V., Salamin N., Catausan S., Mattes N., Heuer S., Paszkowski U.
ISSN
1532-298X (Electronic)
ISSN-L
1040-4651
Publication state
Published
Issued date
2012
Volume
24
Number
10
Pages
4236-4251
Language
english
Abstract
Pi acquisition of crops via arbuscular mycorrhizal (AM) symbiosis is becoming increasingly important due to limited high-grade 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.
Pubmed
Web of science
Open Access
Yes
Create date
20/12/2012 14:11
Last modification date
08/05/2019 16:51
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