The isolation and chemical properties of trichothecin, an antifungal substance from Trichothecium roseum Link.

Some biological properties of trichothecin, an antifungal substance from Trichothecium roseum Link.

Occurrence of trichothecin in wheat.

Trichothecin, a toxic metabolite of Trichothecium roseum, was detected in 3 of 13 wheat samples examined at levels of 560, 290, and 270 ng/g. In addition, all the T. roseum isolates from the wheat produced the toxin on wheat.

Characterization and biocontrol ability of fusion chitinase in Escherichia coli carrying chitinase cDNA from Trichothecium roseum.

The antifungal mechanism of mycoparasitic fungi involves fungal cell wall degrading enzymes such as chitinases. Trichothecium roseum is an important mycoparasitic fungus with significant antifungal ability, but studies on chitinases of T. roseum were poor. Here, we report a novel chitinase cDNA isolated from T. roseum by PCR amplification based on conserved chitinase sequences. Southern blot an...

Roseocardin, a novel cardiotonic cyclodepsipeptide from Trichothecium roseum TT103.

A new cyclodepsipeptide, designated roseocardin, was isolated from the culture broth of Trichothecium roseum TT103. Roseotoxin B and destruxins A and B were also isolated during the same procedure. The structure of roseocardin was determined by EI-MS, NMR and X-ray crystallographic analysis. Roseocardin as well as the other cyclodepsipeptides were shown to produce positive inotropic effects on ...

Acid-soluble Pigments of Molluscan Shells

1. The isolation and properties of roseins I and II from the mycelium ofTrichothecium rogeum and of rosein III from the culture filtrate are described. 2. Rosein I, colourless tetrahedra, m.p. 2100, [oc]4112-5 in chloroform (c, 1) has the molecular formula C019H2603. It is a neutral ketone, which reacted with one equivalent of hot ethanolic alkali and yielded a lactone, i8orosein I, m.p. 144°, ...