Co-Authors:
Irihimovitch, V., Institute of Plant Sciences, Volcani Center, Agricultural Research Organization, Bet-Dagan, Israel, Institute of Plant Sciences, Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Yehudai-Resheff, S., Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
Abstract:
Phosphorus (P) and sulfur (S) are two macronutrients that photosynthetic organisms require in relatively large amounts despite their levels in the environment often being limited. Accordingly, to adapt to random changes in macronutrient concentrations, plants and algae must sense and respond in a coordinated fashion. The unicellular green alga Chlamydomonas reinhardti is a widely used model organism for the study of P and S stress responses. Herein, we review the current knowledge of P and S nutrient stress responses, highlighting the roles of P and S key global-regulator proteins in mediating signals that link P and S detection to different chloroplast nutrient stress responses. © 2008 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.