Verpacrocin, ein Polyenpigment aus Mycelkulturen von Verpa digitaliformis (Pers.) Fr. (Ascomycetes) [1] / Verpacrocin, a Polyene Pigment from Mycelial Cultures of Verpa digitaliformis (Pers.) Fr. (Ascomycetes) [1]

Abstract

Mycelial cultures of the ascomycete Verpa digitaliformis produce a yellow pigment, verpacrocin. Its structure was determined by spectroscopic methods to be 2,4,6,8,10,12,14- hexadecaheptaenedial (3).

Calostomal, a Polyene Pigment from the Gasteromycete Calostoma cinnabarinum (Boletales)

“…The chemotaxonomic relevance of these findings for the inclusion of Calostoma into the order Boletales awaits further investigations. Verpacrocin (4), the dialdehyde corresponding to calostomal, has been isolated from cultures of the Ascomycete Verpa digitaliformis [9]. …”

Cochliobolic Acid, a Novel Metabolite Produced by Cochliobolus lunatus, Inhibits Binding of TGF-α to the EGF Receptor in a SPA Assay

“…Nonisoprenoid polyene pigments have been reported in a few macromycetes, − but are relatively rare. Likewise, natural products containing 1,2-diketones are not common; other examples of fungal metabolites possessing such a moiety include podoscyphic acid and grahamimycin A 1 …”

The Diversity of Linear Conjugated Polyenes and Colours in Nature: Raman Spectroscopy as a Diagnostic Tool

“…Unusual polyolefinic fatty acids possessing between 6 and 10 conjugated double bonds with a carboxyl terminal group have been isolated exclusively from fungi [10] (Figure 4). Some of these representative molecules are the hexaene ( n =6) corticrocin, [57] the heptaenes (n=7) cortisalin, [16] verpacrocin, [58] piptoporic acids, [17] aslaniol, aslanipyrone, [59] boletocrocin A and B [18] and melanocrocin [19] the 18‐methyl‐19‐oxoicosaoctaenoic acid (n=8), the methyl‐branched laetiporic acid‐type, 20‐methyl‐21‐oxodocosanonaenoic acid ( n =9), [21] and laetiporic acids with n =10 [20] (Figure 4).…”