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IJMS, Vol. 19, Pages 1887: Regulation of Root Development and Architecture by Strigolactones under Optimal and Nutrient Deficiency Conditions

IJMS, Vol. 19, Pages 1887: Regulation of Root Development and Architecture by Strigolactones under Optimal and Nutrient Deficiency Conditions

International Journal of Molecular Sciences doi: 10.3390/ijms19071887

Authors: Marek Marzec Michael Melzer

Strigolactones (SLs) constitute a group of plant hormones which are involved in multiple aspects of plant growth and development. Beside their role in shoot and root development and plant architecture in general, SLs are also involved in plant responses to nutrient deficiency by promoting interactions with symbiotic organisms and via promotion of root elongation. Recent observations on the cross talk between SLs and other hormones demonstrate that the inhibition of adventitious root formation by ethylene is independent of SLs. Additionally, it was shown that root exposure to SLs leads to the accumulation of secondary metabolites, such as flavonols or antioxidants. These data suggest pleiotropic effects of SLs, that influence root development. The discovery that the commonly used synthetic SL analogue racGR24 might also mimic the function of other plant growth regulators, such as karrikins, has led us to consider the previously published publications under the new aspects. This review summarizes present knowledge about the function of SLs in shaping root systems under optimal and nutrient deficiency conditions. Results which appear inconsistent with the various aspects of root development are singled out.

Authors:   Marzec, Marek ; Melzer, Michael
Journal:   International Journal of Molecular Sciences
Volume:   19
edition:   7
Year:   2018
Pages:   1887
DOI:   10.3390/ijms19071887
Publication date:   27-Jun-2018
Facts, background information, dossiers
  • publications
  • plant hormones
  • metabolites
  • interactions
  • hormones
  • growth regulators
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