Plays a continuous role in plant development probably in the structural organization of compartments (By similarity). Seems to be involved in resistance to oxidative stresses mediated by thiol-oxidizing agents such as diamide. Constitutively expressed in roots, stems, leaves and flowers. Not induced by methyl viologen (paraquat), menadione, diamide, t-BuOOH, dithiothreitol (DTT) and H(2)O(2). Belongs to the DnaJ family. B/II subfamily.