Fig. 7
![Fig. 7](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12870-016-0834-0/MediaObjects/12870_2016_834_Fig7_HTML.gif)
Schematic model of the signaling networks involving H2 and NO during adventitious root development in cucumber. The H2 triggers a transient NO accumulation. In turn, NO induces the division of cell and the expression of cell cycle-related gens, CycA/B and CDKA/B. The above pathway might be mediated by the expression of CsDNAJ-1 and CDPK1/5 genes. T bars, inhibition