Thioredoxin involved in responses to oxidative and cell wall stresses (PubMed:27059015). Plays an important role in appressorium formation on hyphal tips (PubMed:27059015). TRX2 may affect invasive growth via the MST11-MST7-PMK1 pathway since it is required for the proper folding or dimerization of MAPKK MST7 (PubMed:27059015). Localizes in the cytoplasm and vacuoles in conidia, appressoria, and invasive hyphae. Expression is induced in the absence of TRX1. Leads to reduced growth rate and reduced conidiation and impairs appressorium formation (PubMed:27059015). Leads also to defects in response to light/ dark transitions (PubMed:27059015). Belongs to the thioredoxin family.