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Int. J. Mol. Sci. 2018, 19(3), 795; https://doi.org/10.3390/ijms19030795

Key Hormonal Components Regulate Agronomically Important Traits in Barley

1
Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, 40-032 Katowice, Poland
2
Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Stadt, Seeland, Germany
3
Research Group Resources Genetics and Reproduction, Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Stadt, Seeland, Germany
*
Authors to whom correspondence should be addressed.
Received: 21 February 2018 / Revised: 6 March 2018 / Accepted: 7 March 2018 / Published: 10 March 2018
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Abstract

The development and growth of plant organs is regulated by phytohormones, which constitute an important area of plant science. The last decade has seen a rapid increase in the unravelling of the pathways by which phytohormones exert their influence. Phytohormones function as signalling molecules that interact through a complex network to control development traits. They integrate metabolic and developmental events and regulate plant responses to biotic and abiotic stress factors. As such, they influence the yield and quality of crops. Recent studies on barley have emphasised the importance of phytohormones in promoting agronomically important traits such as tillering, plant height, leaf blade area and spike/spikelet development. Understanding the mechanisms of how phytohormones interact may help to modify barley architecture and thereby improve its adaptation and yield. To achieve this goal, extensive functional validation analyses are necessary to better understand the complex dynamics of phytohormone interactions and phytohormone networks that underlie the biological processes. The present review summarises the current knowledge on the crosstalk between phytohormones and their roles in barley development. Furthermore, an overview of how phytohormone modulation may help to improve barley plant architecture is also provided. View Full-Text
Keywords: agronomical traits; barley; genome-wide association studies; phytohormones; plant architecture; spikelet development agronomical traits; barley; genome-wide association studies; phytohormones; plant architecture; spikelet development
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Marzec, M.; Alqudah, A.M. Key Hormonal Components Regulate Agronomically Important Traits in Barley. Int. J. Mol. Sci. 2018, 19, 795.

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