Impact of bacterial priming on some stress tolerance mechanisms and growth of cold stressed wheat seedlings


https://doi.org/10.4081/pb.2013.e8
Vol. 4 No. 1 (2013)
Submitted: 26 February 2013
Accepted: 5 July 2013
Published: 20 January 2014
bacteria, cold stress, priming, stress tolerance, wheat
Abstract Views: 6843
PDF: 582
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Authors

  • Mohammed E.H. Osman Botany Department, Faculty of Science, Tanta University, Egypt.
  • Wedad A. Kasim Botany Department, Faculty of Science, Tanta University, Egypt.
  • Mohammed N. Omar Department of Microbiology, Soils Water and Environment Research Institute, Agriculture Research Centre, Giza, Egypt.
  • Islam A. Abd El-Daim
    islam.abdeldaim@slu.se
    Department of Microbiology, Soils Water and Environment Research Institute, Agriculture Research Centre, Giza, Egypt; Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden.
  • Sarosh Bejai Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden.
  • Johan Meijer Department of Plant Biology and Forest Genetics, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, Uppsala, Sweden.
The potential to enhance growth of cold stressed wheat by seed treatment (priming) with the beneficial bacteria Bacillus amyloliquefaciens 5113 and Azospirillum brasilense NO40 were tested. Results showed an improved ability of bacteria-treated seedlings to survive at −5°C up to 12 h. Cold stress increased transcript levels of three stress marker genes and increased activity for the ascorbate-glutathione redox enzymes. However, primed and stressed seedlings generally showed smaller effects on the stress markers correlating with better growth and improved stress tolerance. Bacterial priming to improve crop plant performance at low temperature seems a useful strategy to explore further.

Supporting Agencies


Osman, M. E., Kasim, W. A., Omar, M. N., Abd El-Daim, I. A., Bejai, S., & Meijer, J. (2014). Impact of bacterial priming on some stress tolerance mechanisms and growth of cold stressed wheat seedlings. International Journal of Plant Biology, 4(1), e8. https://doi.org/10.4081/pb.2013.e8

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