TY - RPRT TI - Two Ubiquitin-Activating Systems Occur in Plants with One Playing a Major Role in Plant Immunity AU - Zhou, B. AU - Wang, C. AU - Chen, X. AU - Zhang, Y. AU - Zeng, L. PY - 2021 DO - 10.1101/2021.09.02.458739 UR - https://www.biorxiv.org/content/10.1101/2021.09.02.458739v1 ID - 10.1101/2021.09.02.458739 ER -