Integrated physiological, transcriptomic and metabolomic analyses reveal ROS regulatory mechanisms in two castor bean varieties under alkaline stress.

• Tác giả: Zhigang Cui, Xuan Dong, Yan Gao, Fei Hao, Guolin Lin, Yunlong Wang, Bingyu Yao, Yongyong Zhang
• Ngôn ngữ: eng
• Ký hiệu phân loại: 635.347 Varieties and kinds
• Thông tin xuất bản: France : Plant physiology and biochemistry : PPB , 2025
• Bộ sưu tập: NCBI
• ID: 191036

Tóm tắt

 Saline-alkaline stress has caused severe ecological and environmental problems. Castor bean is a potential alkali-tolerant plant, however, its reactive oxygen species (ROS) regulatory mechanisms under alkaline stress remain unclear. This study investigated the physiological, transcriptomic, and metabolomic characteristics of two varieties (ZB8, alkaline-sensitive
  JX22, alkaline-resistant) under alkaline stress. Results showed that under alkaline stress, JX22's root length was 1.66-fold greater than ZB8's, while its superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities were 1.25-, 1.41-, and 1.29-fold higher than ZB8's, respectively. The levels of superoxide anion (O