TLDR Hydrogen sulfide disrupts protein function and root hair growth in plants by modifying proteins.
The study concluded that hydrogen sulfide (H₂S) disrupted actin polymerization through S-sulfhydration, leading to stunted root hair growth in Arabidopsis thaliana. This disruption was linked to the modification of actin proteins, particularly ACTIN2 (ACT2) at Cys-287, which is crucial for actin filament stability. Elevated H₂S levels increased the G-actin/F-actin ratio, indicating reduced actin polymerization without degrading total actin. The findings underscored the significant impact of H₂S on root hair development and provided insights into the molecular mechanisms regulating actin dynamics and root morphology in plants.
23 citations,
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