BnHO1, a haem oxygenase-1 gene from Brassica napus, is required for salinity and osmotic stress-induced lateral root formation.
Up- or down-regulation of BnHO1 expression contributes to the induction or inhibition of LR formation.
Suggesting that BnHO1 is a newly identified component of the signal transduction pathway in LR formation triggered by salinity and osmotic stress. Finally, its relationship with auxin signalling was also investigated.
Taken together, these results suggested a novel role of the rapeseed HO-1 gene in salinity and osmotic stress-induced LR formation, with a possible interaction with auxin signalling.
