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. 2018 Feb 20;9:163. doi: 10.3389/fpls.2018.00163

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Copyright © 2018 Singh, Dwivedi, Sarma, Singh and Singh.

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 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.

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FT-IR spectrum in tobacco roots. Pictorial representation of different signal peaks lies in the range of wave number 1700–1000 cm^-1 in tobacco root with different treatments: control (used distilled water), T42 strain treated, NO₃^- fed, NO₃^- fed plus T42 bio-primed, NH₄⁺ fed, NH₄⁺ fed plus T42 bio-primed, nitrate reductase mutant; nia30 and nia30 bio-primed with T42 strain at 70 days after treatment. Values are represented as % transmittance.