Identification of potential interactors of COMPANION OF CELLULOSE SYNTHASE (CC) 1

Salt stress is one of the most detrimental abiotic stresses for plants. The plant cell wall, which encases plant cells and functions as a cellular exoskeleton, is an important structure to cope with such stresses. One of the main components of the cell wall is cellulose, which is synthesized by cellulose synthase (CESA) complexes (CSC) at the plasma membrane by moving along underlying cortical microtubules. COMPANION OF CELLULOSE SYNTHASE (CC) 1 and 2 have been identified to be components of the CSCs, and function in maintaining cellulose synthesis under salt stress by supporting microtubules and CESA behaviors. However, the exact regulatory mechanisms of the CC1 and CC2 proteins remain largely unknown. In this project, we did an immunoprecipitation-mass spectrometry (IP-MS) analysis to identify potential interactors of CC1 for further study.