Journal
TRENDS IN PLANT SCIENCE
Volume 25, Issue 12, Pages 1227-1239Publisher
CELL PRESS
DOI: 10.1016/j.tplants.2020.07.007
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Funding
- Collaborative Research Centers, SFB (Sonderforschungsbereich) [TRR 175/1]
- International Max Planck Research School (IMPRS)
- Max Planck Society
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Plants display manifold metabolic changes on sulfate deficiency (S deficiency) with all sulfur-containing pools of primary and secondary metabolism affected. O-Acetylserine (OAS), whose levels are rapidly altered on S deficiency, is corre-lated tightly with novel regulators of plant sulfur metabolism that have key roles in balancing plant sulfur pools, including the Sulfur Deficiency Induced genes (SDI1 and SDI2), More Sulfur Accumulation1 (MSA1), and GGCT2;1. Despite the importance of OAS in the coordination of S pools under stress, mechanisms of OAS perception and signaling have remained elusive. Here, we put particular focus on the general OAS-responsive genes but also elaborate on the specific roles of SDI1 and SDI2 genes, which downregulate the glucosinolate (GSL) pool size. We also highlight the key open questions in sulfur partitioning.
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