RBCS — Pisum sativum

Summary

PsRBCS (PSAT3G205280) on pea chromosome 3LG5 encodes a small subunit of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO), containing the RuBisCO_ssu domain. The gene is associated with RuBisCO assembly, the reductive pentose-phosphate cycle, photorespiration, and plastid translation. It has been linked to photosynthetic rate, CO2 assimilation, chloroplast development and function, leaf vein morphology, meristem and root development, flowering time, plant height, and responses to high and low temperature, oxidative stress, boron, zinc, and herbicide. Additional associations include proteasomal protein catabolism, phloem transport, phyllome development, and female gamete generation. The product localises to the thylakoid lumen and membrane, chloroplast envelope, apoplast, and cell wall. Studies of related genes in other species link the family to leaf dry weight, RuBisCO content, net photosynthetic rate, chlorophyll content, drought tolerance, and seed yield.