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Rice auxin influx carrier #OsAUX1# facilitates root hair elongation in response to low external phosphate

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Giri J., Bhosale R., Huang G., Pandey B.K., Parker H., Zappala S., Yang J., Diévart A., Bureau C., Ljung K., Price A.H., Rose T., Larrieu A., Mairhofer S., Sturrock C., White P., Dupuy L., Hawkesford M., Périn C., Liang W., Péret B., Hodgman C.T., Lynch J.P., Wissuwa M., Zhang D., Pridmore T.P., Mooney S.J., Guiderdoni E., Swarup R., Bennett M.J.
2018

Root traits such as root angle and hair length influence resource acquisition particularly for immobile nutrients like phosphorus (P). Here, we attempted to modify root angle in rice by disrupting the OsAUX1 auxin influx transporter gene in an effort to improve rice P acquisition efficiency. We show by X-ray microCT imaging that root angle is altered in the osaux1 mutant, causing preferential ...

Physiologie végétale : nutrition

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