GhAAO2 was observed responding to NaHCO3 stress in cotton compared to AAO family genes. - Liu, Xiaoyu; Cui, Yupeng; Kang, Ruiqin; Zhang, Hong; Huang, Hui; Lei, Yuqian; Fan, Yapeng; Zhang, Yuexin; Wang, Jing; Xu, Nan; Han, Mingge; Feng, Xixian; et al. (BMC Plant Biology, 2022)