Privately owned Brazilian agribusiness group Itaquere has filed for bankruptcy protection to restructure 482 million reais ($127 million) of debt, according to a letter from management seen by Reuters. In the letter dated March 21, the group, based in Brazil’s top grains state Mato Grosso, blames a prolonged economic crisis, along with adverse climate conditions and currency swings, for its financial woes. The letter was signed by the group but not by any particular executive. Itaquere and MLuz, named in…