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Front. Plant Sci. | doi: 10.3389/fpls.2019.00037

Characterization of phoA, a Bacterial Alkaline Phosphatase for Phi Use Efficiency in Rice Plant

  • 1Crop Improvement Group, International Centre for Genetic Engineering and Biotechnology (India), India
  • 2Department of Biotechnology, Govind Ballabh Pant Institute of Engineering & Technology, India
  • 3National Agricultural Science Fund, Indian Agricultural Research Institute (ICAR), India

Fertilizer and herbicide are two major component in the agriculture system for achiving crop productivity. Massive use of orthophosphate fertilizer and herbicides pose threats to reserve phosphate and chance of development of tolerant biotype. Phosphite a phosphate analogue has been proposed beneficial over traditionally using phosphorus fertilizers and herbicides in the agriculture. We developed phoA overexpressing transgenic rice that minimize the popsphate loss and contributes to weed management in the agriculture. The phoA rice lines showed improved root, shoot length and total biomass production under phosphite conditions. Additionally, the complete phenotype and productivity of phoA lines under the phosphite treatment attained similar with that of plants under phosphate sufficient condition. The phytotoxic properties of Phi and the metabolizing properties of the phoA overexpressed lines in the Phi treatment condition relatively control weeds without compromising the transgenic yield. Our results indicated that phoA alone or combination with other phosphite metabolizing gene possibly used an effective ameliorating system for improving crop plant for phi based fertilization and weed management statergy in the agriculture.

Keywords: PhoA, Weed Control, phosphite, phosphorus use efficiency, rice

Received: 25 Jul 2018; Accepted: 10 Jan 2019.

Edited by:

Goetz Hensel, Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK), Germany

Reviewed by:

Wusirika Ramakrishna, Central University of Punjab, India
Shri Ram Yadav, Indian Institute of Technology Roorkee, India
Guotian Li, University of California, Davis, United States  

Copyright: © 2019 Ram, Fartyal, Sheri, Varakumar, Borphukan, James, Yadav, Bhatt, Agrawal, Achary and Reddy. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence:
Dr. V. Mohan M. Achary, International Centre for Genetic Engineering and Biotechnology (India), Crop Improvement Group, New Delhi, 110067, New Delhi, India,
Dr. Malireddy K. Reddy, International Centre for Genetic Engineering and Biotechnology (India), Crop Improvement Group, New Delhi, 110067, New Delhi, India,