Fig. 5
From: Ammonia borane positively regulates cold tolerance in Brassica napus via hydrogen sulfide signaling
Altered endogenous H2S production by AB, PAG, and HT in response to cold stress. Three-day-old seedlings were kept at 21 °C (Con) or exposed to cold stress (Cold) condition (4 °C) with or without AB, NaHS, HT, and PAG alone and their combinations for 6 h. Afterwards, corresponding images of AzMC-dependent fluorescence in roots tips were provided to represent endogenous H2S contents (A), and the relative fluorescence was presented as values relative to Con (B). The error bars represent the SD. The different letters indicate significantly different values (P < 0.05 according to Turkey’s multiple range test)