Mineral deficiency mostly zinc is a well-documented problem in food and forage crops affecting the crop production and subsequently the human and animal health. Oat (Avena sativa L.) is winter crop in many parts of the world and is used as multipurpose crop for grain and forage. Oat is sensitive to Zn, which is major dry fodder and thereby causes Zn deficiency in animals. Application of Zinc solubilizing bacteria (ZSB) could be a sustainable agronomic approach to increase the soil availability of Zn for nutritionally rich oat. In the present study, the role of zinc solubilizing bacteria on regulation of Zn-regulated transporters (OsZIP1, OsYSL2 and OsYSL6) was assessed by quantative real-time reverse transcription PCR and semi-quantative PCR, in control (without ZSB inoculation) and in treated (with ZSB inoculation) of leaf, stem and root. The expression of OsZIP1 in treated leaf and stem was more observed as compared to control whereas there is no change in root expression. The expression of OsYSL2 was more in leaf and root as compared to control. The expression of OsYSL6 was higher in treated stem and root as compared to control. These result suggested that OsZIP1, OsYSL2 and OsYSL6 in oat is an oat zinc transporters could be responsible for the Zinc transportation.

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