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Plants under Stress: Involvement of Auxin and Cytokinin

Plant growth and development are critically influenced by unpredictable abiotic factors. To survive fluctuating changes in their environments, plants have had to develop robust adaptive mechanisms. The dynamic and complementary actions of the auxin and cytokinin pathways regulate a plethora of devel...

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Autores principales: Bielach, Agnieszka, Hrtyan, Monika, Tognetti, Vanesa B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5535918/
https://www.ncbi.nlm.nih.gov/pubmed/28677656
http://dx.doi.org/10.3390/ijms18071427
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author Bielach, Agnieszka
Hrtyan, Monika
Tognetti, Vanesa B.
author_facet Bielach, Agnieszka
Hrtyan, Monika
Tognetti, Vanesa B.
author_sort Bielach, Agnieszka
collection PubMed
description Plant growth and development are critically influenced by unpredictable abiotic factors. To survive fluctuating changes in their environments, plants have had to develop robust adaptive mechanisms. The dynamic and complementary actions of the auxin and cytokinin pathways regulate a plethora of developmental processes, and their ability to crosstalk makes them ideal candidates for mediating stress-adaptation responses. Other crucial signaling molecules responsible for the tremendous plasticity observed in plant morphology and in response to abiotic stress are reactive oxygen species (ROS). Proper temporal and spatial distribution of ROS and hormone gradients is crucial for plant survival in response to unfavorable environments. In this regard, the convergence of ROS with phytohormone pathways acts as an integrator of external and developmental signals into systemic responses organized to adapt plants to their environments. Auxin and cytokinin signaling pathways have been studied extensively. Nevertheless, we do not yet understand the impact on plant stress tolerance of the sophisticated crosstalk between the two hormones. Here, we review current knowledge on the function of auxin and cytokinin in redirecting growth induced by abiotic stress in order to deduce their potential points of crosstalk.
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spelling pubmed-55359182017-08-04 Plants under Stress: Involvement of Auxin and Cytokinin Bielach, Agnieszka Hrtyan, Monika Tognetti, Vanesa B. Int J Mol Sci Review Plant growth and development are critically influenced by unpredictable abiotic factors. To survive fluctuating changes in their environments, plants have had to develop robust adaptive mechanisms. The dynamic and complementary actions of the auxin and cytokinin pathways regulate a plethora of developmental processes, and their ability to crosstalk makes them ideal candidates for mediating stress-adaptation responses. Other crucial signaling molecules responsible for the tremendous plasticity observed in plant morphology and in response to abiotic stress are reactive oxygen species (ROS). Proper temporal and spatial distribution of ROS and hormone gradients is crucial for plant survival in response to unfavorable environments. In this regard, the convergence of ROS with phytohormone pathways acts as an integrator of external and developmental signals into systemic responses organized to adapt plants to their environments. Auxin and cytokinin signaling pathways have been studied extensively. Nevertheless, we do not yet understand the impact on plant stress tolerance of the sophisticated crosstalk between the two hormones. Here, we review current knowledge on the function of auxin and cytokinin in redirecting growth induced by abiotic stress in order to deduce their potential points of crosstalk. MDPI 2017-07-04 /pmc/articles/PMC5535918/ /pubmed/28677656 http://dx.doi.org/10.3390/ijms18071427 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Bielach, Agnieszka
Hrtyan, Monika
Tognetti, Vanesa B.
Plants under Stress: Involvement of Auxin and Cytokinin
title Plants under Stress: Involvement of Auxin and Cytokinin
title_full Plants under Stress: Involvement of Auxin and Cytokinin
title_fullStr Plants under Stress: Involvement of Auxin and Cytokinin
title_full_unstemmed Plants under Stress: Involvement of Auxin and Cytokinin
title_short Plants under Stress: Involvement of Auxin and Cytokinin
title_sort plants under stress: involvement of auxin and cytokinin
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5535918/
https://www.ncbi.nlm.nih.gov/pubmed/28677656
http://dx.doi.org/10.3390/ijms18071427
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