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The Role of Strigolactones in Nutrient-Stress Responses in Plants
Department of Genetics, Faculty of Biology and Environmental Protection, University of Silesia, Katowice 40-032, Poland
Department of Physiology and Cell Biology, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben 06466, Germany
* Author to whom correspondence should be addressed.
Received: 12 March 2013; in revised form: 3 April 2013 / Accepted: 17 April 2013 / Published: 29 April 2013
Abstract: Strigolactones (SLs) are a new group of plant hormones, which have been intensively investigated during the last few years. The wide spectrum of SLs actions, including the regulation of shoot/root architecture, and the stimulation of the interactions between roots and fungi or bacteria, as well as the stimulation of germination of parasitic plants, indicates that this group of hormones may play an important role in the mechanisms that control soil exploration, and the root-mediated uptake of nutrients. Current studies have shown that SLs might be factors that have an influence on the plant response to a deficiency of macronutrients. Experimental data from the last four years have confirmed that the biosynthesis and exudation of SLs are increased under phosphorus and nitrogen deficiency. All these data suggest that SLs may regulate the complex response to nutrient stress, which include not only the modification of the plant developmental process, but also the cooperation with other organisms in order to minimize the effects of threats. In this paper the results of studies that indicate that SLs play an important role in the response to nutrient stress are reviewed and the consequences of the higher biosynthesis and exudation of SLs in response to phosphorus and nitrogen deficiency are discussed.
Keywords: biosynthesis; nitrogen (N); phosphorus (P); mycorrhizae; nodulation; signaling; stress response; strigolactones (SLs)
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Marzec, M.; Muszynska, A.; Gruszka, D. The Role of Strigolactones in Nutrient-Stress Responses in Plants. Int. J. Mol. Sci. 2013, 14, 9286-9304.
Marzec M, Muszynska A, Gruszka D. The Role of Strigolactones in Nutrient-Stress Responses in Plants. International Journal of Molecular Sciences. 2013; 14(5):9286-9304.
Marzec, Marek; Muszynska, Aleksandra; Gruszka, Damian. 2013. "The Role of Strigolactones in Nutrient-Stress Responses in Plants." Int. J. Mol. Sci. 14, no. 5: 9286-9304.