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

Détails

ID Serval
serval:BIB_33C9D7D887E6
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Nonredundant Regulation of Rice Arbuscular Mycorrhizal Symbiosis by Two Members of the PHOSPHATE TRANSPORTER1 Gene Family.
Périodique
Plant Cell
Auteur(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
Statut éditorial
Publié
Date de publication
2012
Volume
24
Numéro
10
Pages
4236-4251
Langue
anglais
Résumé
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
Oui
Création de la notice
20/12/2012 14:11
Dernière modification de la notice
20/08/2019 14:20
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