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https://hdl.handle.net/2440/103813
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dc.contributor.author | Lu, L. | - |
dc.contributor.author | Qiu, W. | - |
dc.contributor.author | Gao, W. | - |
dc.contributor.author | Tyerman, S. | - |
dc.contributor.author | Shou, H. | - |
dc.contributor.author | Wang, C. | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Plant, Cell and Environment, 2016; 39(10):2247-2259 | - |
dc.identifier.issn | 0140-7791 | - |
dc.identifier.issn | 1365-3040 | - |
dc.identifier.uri | http://hdl.handle.net/2440/103813 | - |
dc.description.abstract | Under phosphate (Pi ) starvation, plants increase the secretion of purple acid phosphatases (PAPs) into the rhizosphere to scavenge organic phosphorus (P) for plant use. To date, only a few members of the PAP family have been characterized in crops. In this study, we identified a novel secreted PAP in rice, OsPAP10c, and investigated its role in the utilization of external organic P. OsPAP10c belongs to a monocotyledon-specific subclass of Ia group PAPs and is specifically expressed in the epidermis/exodermis cell layers of roots. Both the transcript and protein levels of OsPAP10c are strongly induced by Pi starvation. OsPAP10c overexpression increased acid phosphatase (APase) activity by more than 10-fold in the culture media and almost fivefold in both roots and leaves under Pi -sufficient and Pi -deficient conditions. This increase in APase activity further improved the plant utilization efficiency of external organic P. Moreover, several APase isoforms corresponding to OsPAP10c were identified using in-gel activity assays. Under field conditions with three different Pi supply levels, OsPAP10c-overexpressing plants had significantly higher tiller numbers and shorter plant heights. This study indicates that OsPAP10c encodes a novel secreted APase that plays an important role in the utilization of external organic P in rice. | - |
dc.description.statementofresponsibility | Linghong Lu, Wenmin Qiu, Wenwen Gao, Stephen D. Tyerman, Huixia Shou, Chuang Wang | - |
dc.language.iso | en | - |
dc.publisher | Wiley-Blackwell | - |
dc.rights | © 2016 John Wiley & Sons Ltd | - |
dc.source.uri | http://dx.doi.org/10.1111/pce.12794 | - |
dc.subject | Oryza sativa (rice) | - |
dc.subject | purple acid phosphatase (PAP) | - |
dc.title | OsPAP10c, a novel secreted acid phosphatase in rice, plays an important role in the utilization of external organic phosphorus | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1111/pce.12794 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/CE140100008 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Tyerman, S. [0000-0003-2455-1643] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest 7 |
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