Physiological and biochemical changes in Matricaria chamomilla induced by Pseudomonas fluorescens and water deficit stress

Authors

  • Hamid MOHAMMADI Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran
  • Mohammad ESMAILPOUR Department of Medicinal and Aromatic plants, Jahrom Universtiy, Jahrom, Iran.
  • Samaneh GHORBI Faculty of Agriculture, Azarbaijan Shahid Madani University, Tabriz, Iran
  • Mehrnaz HATAMI Department of Medicinal Plants, Faculty of Agriculture and Natural Resources, Arak University, Arak, Iran

DOI:

https://doi.org/10.14720/aas.2018.111.1.07

Keywords:

PGPR, chamomile, essential oil, injury indices, water deficit stress

Abstract

Environmental stresses and rhizosphere microorganisms affect growth parameters and accumulation of active ingredients especially in plants with medicinal properties. The present study examined the effects of chamomile (Matricaria chamomilla L.) seedling inoculation with Pseudomonas fluorescens PF-135 strain on its growth parameters, photosynthetic pigments, proline, malondialdehyde (MDA), and hydrogen peroxide (H2O2) content, and essential oil concentration at both regular watering and water deficit experiments. Based on the obtained results, water deficit stress reduced root dry mass, and flower fresh and dry mass as well. However, amount of H2O2 and MDA in root and shoot tissues were considerably lower in inoculated plants compared to non-inoculated ones under both normal watering and water deficit regimes. It indicates that lipid peroxidation and production of reactive oxygen species has been diminished in inoculated plants. Also, essential oil content in inoculated plants significantly increased compared with that of non-inoculated ones under water deficit stress condition. It can be concluded that P. fluorescens PF-135 strain has an outstanding potential to alleviate adverse effects of water deficit on plant growth, and hence can be used as an excellent PGPR in order to boost chamomile productivity especially under water deficit stress condition.

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Published

8. 04. 2018

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Section

Agronomy section

How to Cite

MOHAMMADI, H., ESMAILPOUR, M., GHORBI, S., & HATAMI, M. (2018). Physiological and biochemical changes in Matricaria chamomilla induced by Pseudomonas fluorescens and water deficit stress. Acta Agriculturae Slovenica, 111(1), 63–72. https://doi.org/10.14720/aas.2018.111.1.07

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