The regulation solutions and mechanisms of reducing pesticide phytotoxicity to nontarget plants are not well-defined and detailed. Here, we have proposed a new detoxification strategy to control the toxic effects of herbicide imazethapyr (IM) induced in wheat seedlings from the perspective of the plasma membrane (PM) H-ATPase. We found that the changes in PM H-ATPase activity have a regulatory effect on the phytotoxic effects induced by IM in plants. Treatment with PM H-ATPase activators restored the reduced auxin content and photosynthetic efficiency caused by IM, thereby promoting plant growth. Application of a PM H-ATPase inhibitor further reduced phosphorus content and significantly increased 2,4-dihydroxy-7-methoxy-2,1,4-benzoxazin-3(4)one (DIMBOA) and jasmonic acid levels. These effects indicate that auxin and DIMBOA may regulate plant growth trends and detoxification effects mediated by PM H-ATPase. This work opens a new strategy for regulating herbicide toxicity to nontarget plants from the PM H-ATPase.
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