2-(3,4-Dichlorophenoxy)triethylamine (DCPTA) Sustains Root Activity Through the Enhancement of Ascorbate-Glutathione in Spring Maize (Zea mays L.) Under Post-Tasseling Waterlogging
Year: 2025
Type: article
Abstract: L.), at the post-tasseling phase, impedes a comprehensive understanding of responses and the development of resistance technologies. 2-(3,4-dichlorophenoxy) triethylamine (DCPTA) is suitable for the entire lifecycle of various economic and food crops, improving crop quality and enhancing stress resistance. The study investigated the ear leaf photosynthesis in relation to the root antioxidant systems' differential responses of spring maize to waterlogging among the tasseling (VT), vesicle (R2) and dough (R4) stages, and the exogenous DCPTA regulating effect. Results revealed that waterlogging inhibited root physiological activity due to oxidative damage. Consequently, the stomatal restriction and non-stomatal restriction on photosynthesis appeared successively, and R4 was the most sensitive stage. Pretreatment with DCPTA reduced stomatal restriction by maintaining water transfer to the leaf through maintaining root physiological activity via enhanced ascorbate-glutathione cycle. Delayed non-stomatal restriction appeared due to relatively stable chlorophyll content and photosynthetic activities, and VT stage exhibited the highest susceptibility to DCPTA. The study provides a necessary theoretical foundation for comprehending the physiological mechanisms underlying yield formation of spring maize under waterlogging stress in Northeast China, and offers valuable insights for the development of chemical regulation technology.
DOI: 10.3390/ijms26083698
Authors: Tenglong Xie, Linlin Mei, Xiao-Ge Yang, Xiao-Ge Yang, Meiyu Wang, Qian Zhang, Wei Li, He Zhang, Meng Zhang, Deguang Yang, Jingjie Dou, Xuechen Yang, Xuechen Yang
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $3,499
Funders: Natural Science Foundation of Jilin Province, National Natural Science Foundation of China, Chinese Academy of Sciences, China Postdoctoral Science Foundation, People's Government of Jilin Province, Northeast Agricultural University, National Key Research and Development Program of China, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences
Awards: G1125903765, G1883913239, G2036506137, G2116862722, G232744867, G2944000155, G31255289, G3532925812, G3778158608, G4028268295, G4079173712, G4106149760, G4374818150, G4388318531, G4702920132, G4716984112, G4832881784, G4854013064, G5287014043, G531460935, G556668899, G5582225756, G5614357730, G5715711397, G586066173, G6115265898, G6255788470, G6422987424, G6461629752, G6580196567, G6825566665, G6846677948, G6894064161, G6929390333, G7077356159, G7116235942, G7244077878, G7403508484, G7990062421, G8591257062, G8640637599, G8685395928, G8698493007, G8722884444, G8915075049
OpenAlex ID: W4409411506