Metabolomics and transcriptomics combined with physiology reveal key metabolic pathway responses in tobacco roots exposed to NaHS.

Hydrogen sulfide (HS) has emerged as a novel endogenous gas signaling molecule, joining the ranks of nitric oxide (NO) and carbon monoxide (CO). Recent research has highlighted its involvement in various physiological processes, such as promoting root organogenesis, regulating stomatal movement and photosynthesis, and enhancing plant growth, development, and stress resistance. Tobacco, a significant cash crop crucial for farmers' economic income, relies heavily on root development to affect leaf growth, disease resistance, chemical composition, and yield.

Effect of hydrogen sulfide (HS) on the growth and development of tobacco seedlings in absence of stress.

Background: Hydrogen sulfide (HS) is a novel signaling molecule involved in the growth and development of plants and their response to stress. However, the involvement of HS in promoting the growth and development of tobacco plants is still unclear.

Results: In this study, we explored the effect of pre-soaking or irrigating the roots of tobacco plants with 0.

Effect and mechanism of NaHS on tobacco bacterial wilt caused by Ralstonia solanacearum.

Since its discovery as a third unique gaseous signal molecule, hydrogen sulfide (HS) has been extensively employed to resist stress and control pathogens. Nevertheless, whether HS can prevent tobacco bacterial wilt is unknown yet. We evaluated the impacts of the HS donor sodium hydrosulfide (NaHS) on the antibacterial activity, morphology, biofilm, and transcriptome of R.