Fig. 3: H2S inhibited the ethylene-induced upregulation of the expression of genes encoding cell-wall-modifying enzymes in the tomato petiole AZ.
From: Hydrogen sulfide inhibits ethylene-induced petiole abscission in tomato (Solanum lycopersicum L.)

Changes in the expression levels of Cel5, TAPG4, Expansin1, and TAPG2 in AZ tissues were monitored during petiole abscission under both ethylene (square) and ethylene–hydrogen sulfide (H2S) (circle) treatments with 12-h intervals. Data are presented as the mean ± SE (n = 3). The SAND gene was used as an internal control.