Abstract
Plants are often exposed to stresses, such as drought, and need to respond accordingly in order to maximize survival. Drought alters the developmental pattern of virtually all plant tissues. For example, the root system generally shows an elongation of the primary root, growing toward water, and a reduction in lateral root formation. In the shoots, the formation and expansion of new leaves are usually reduced under drought. Phytohormones act as integrators of the environmental stimuli and the developmental responses, forming an intricate signaling network. Although plant hormones have been studied for a long time, many questions still remain. In this chapter, the possible interactions between hormones will be addressed, focusing on those that may be important in the alteration of the developmental pattern under drought. Hormones may interact by modifying the amounts, distribution, or sensitivity of others. Examples of each case will be provided throughout the text. Finally, a brief review of hormonal action in plants that shows peculiarities when dealing with drought will be presented.
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Abreu, M.E., Mioto, P.T., Mercier, H. (2016). Hormonal Interactions Underlying Plant Development under Drought. In: Ahammed, G., Yu, JQ. (eds) Plant Hormones under Challenging Environmental Factors. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7758-2_3
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