RED PIGMENT FORMATION BY INTERACTION OF MOLDS PART 3 TAXONOMICAL CHARACTERISTIC OF TRICHODERMA STRAIN L 6

Abstract

A strain of Trichoderma which produces red pigments by interaction with Penicillium verruculosum was isolated and identified as Trichoderma viride L 6 according to its taxonomical characteristics.
Survey was made of the occurrence of red pigment formation in coupled cultures of various strains belonging to Trichoderma species, P. verruculosum as well as some representative species of the genus Penicillium. It was suggested that the red pigment(s) may derive from some colorless precursor formed by P. verruculosum, which is later converted to the colored material by the action of T. viride or some other molds.