Abscisic Acid—Enemy or Savior in the Response of Cereals to Abiotic and Biotic Stresses?
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Department of Biochemistry and Microbiology, Institute of Biology, Warsaw University of Life Sciences-SGGW, 02-776 Warsaw, Poland
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Int. J. Mol. Sci. 2020, 21(13), 4607; https://doi.org/10.3390/ijms21134607
Received: 25 May 2020
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Revised: 24 June 2020
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Accepted: 27 June 2020
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Published: 29 June 2020
(This article belongs to the Special Issue Wheat and Barley: Acclimatization to Abiotic and Biotic Stress)
Abscisic acid (ABA) is well-known phytohormone involved in the control of plant natural developmental processes, as well as the stress response. Although in wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) its role in mechanism of the tolerance to most common abiotic stresses, such as drought, salinity, or extreme temperatures seems to be fairly well recognized, not many authors considered that changes in ABA content may also influence the sensitivity of cereals to adverse environmental factors, e.g., by accelerating senescence, lowering pollen fertility, and inducing seed dormancy. Moreover, recently, ABA has also been regarded as an element of the biotic stress response; however, its role is still highly unclear. Many studies connect the susceptibility to various diseases with increased concentration of this phytohormone. Therefore, in contrast to the original assumptions, the role of ABA in response to biotic and abiotic stress does not always have to be associated with survival mechanisms; on the contrary, in some cases, abscisic acid can be one of the factors that increases the susceptibility of plants to adverse biotic and abiotic environmental factors.
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Keywords:
abiotic stresses; abscisic acid (ABA); barley (Hordeum vulgare L.); biotic stresses; wheat (Triticum aestivum L.)
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MDPI and ACS Style
Gietler, M.; Fidler, J.; Labudda, M.; Nykiel, M. Abscisic Acid—Enemy or Savior in the Response of Cereals to Abiotic and Biotic Stresses? Int. J. Mol. Sci. 2020, 21, 4607. https://doi.org/10.3390/ijms21134607
AMA Style
Gietler M, Fidler J, Labudda M, Nykiel M. Abscisic Acid—Enemy or Savior in the Response of Cereals to Abiotic and Biotic Stresses? International Journal of Molecular Sciences. 2020; 21(13):4607. https://doi.org/10.3390/ijms21134607
Chicago/Turabian StyleGietler, Marta, Justyna Fidler, Mateusz Labudda, and Małgorzata Nykiel. 2020. "Abscisic Acid—Enemy or Savior in the Response of Cereals to Abiotic and Biotic Stresses?" International Journal of Molecular Sciences 21, no. 13: 4607. https://doi.org/10.3390/ijms21134607
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