 This study found that nitric oxide, NO, a molecule produced naturally in plants, can protect them from chromium, CR, toxicity. When combined with sulfur, SNO can enhance the plant's ability to produce energy and reduce RS production, which leads to improved photosynthesis and better expression of Calvin cycle genes. This suggests that NO may be able to mitigate the negative effects of CR toxicity on plants. This article was authored by MIRFATMA, ZBCHA, Nushina Iqbal, and others.