Reposted by SEBiology
🛡️ REVIEW 🛡️
This review underscores the key role of H2S in enhancing plant resilience against abiotic stress prevalent in the current climate change scenario. Endogenous sources of H2S and its mechanisms of action are also discussed- Aroca et al.
🔗 doi.org/10.1093/jxb/...
#PlantScience 🧪
![Fig. 1.Classification and conserved domain structure of the WRKY TF family in rice [modified from X. Chen et al. (2019)]. The WRKY family is divided into three major groups, with Group II and III further subdivided based on the type of their WRKY domains and zinc-finger motifs. Group I proteins contain two WRKY domains (NT: N-terminal and CT: C-terminal) followed by a C2H2-type zinc-finger motif. Group II proteins contain a single WRKY domain followed by a C2H2-type motif. Group III proteins contain a single WRKY domain and C2HC-type zinc finger motif. Green boxes indicate the conserved WRKY heptapeptide, while the orange boxes show the zinc-finger motifs (C, cysteine; H, histidine; N, asparagine; R, arginine; T, threonine; X, any amino acid). Dashed lines and associated numbers indicate variable regions between motifs, highlighting structural diversity within the family. Created in BioRender. Neupane, K. (2026) https://BioRender.com/ro50ved.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ggz22gcwkakll7efac23g33s/bafkreihpxngpvscp5feoyufbyi2d3isaibvngtqj64nvjiwmagnds5gl2u)
![Fig. 1 (shortened, full legend in paper): Global exposure of seedlings to pathogen-derived signals induces pH and redox response gradients from roots and petioles to hypocotyls. (A) Five-day-old seedlings expressing the cytosolic pH or redox sensors, pUBQ10::pHGFP or p35S::roGFP2-Orp1, were used to monitor immune responses over 120 min in petioles, hypocotyls, and roots after treatment with 100 µM flg22 or elf18, or ddH2O (mock). (B) Representative microscopy images (of the merged channel) of seedlings treated with ddH2O (mock), elf18, or flg22 at the indicated time points reveal cytosolic acidification and oxidation [calibration bar using the Rainbow Look-Up Table (LUT) shows a shift from blue towards red]; scale bar=250 µm. (C) Quantification of relative acidification and oxidation as shown in (B).](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ggz22gcwkakll7efac23g33s/bafkreiaie2tabjuq6eihs6jj7eqv42m7ahw5xi3fxzowny767vev3aljum)
