	free hosting image hosting hosting reseller online album e-shop famous people

penicillic acid :

9: Appl Environ Microbiol 1987 Jul;53(7):1531-5

6-Methyl-1,2,4-benzenetriol, a new intermediate in penicillic acid biosynthesis in Penicillium cyclopium.

Sekiguchi J, Katayama S, Yamada Y.

Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Nagano, Japan.

Penicillic acid-negative mutants were obtained from a color mutant derived from Penicillium cyclopium NRRL 1888 through N-methyl-N'-nitro-N-nitrosoguanidine treatment. One mutant (SK2N6) accumulated 6-methyl-1,2,4-benzenetriol, which was not previously known to be a metabolite of P. cyclopium, in addition to orsellinic acid and orcinol. The radioactivity of [1-14C]acetic acid was rapidly incorporated into 6-methyl-1,2,4-benzenetriol in a culture of P. cyclopium SK2N6. Moreover, the radioactivity of [14C]6-methyl-1,2,4-benzenetriol was efficiently incorporated into penicillic acid in a culture of P. cyclopium NRRL 1888. These data indicate that 6-methyl-1,2,4-benzenetriol is a precursor for penicillic acid biosynthesis. The results on the addition of 1,4-dihydroxy-6-methoxy-2-methylbenzene, 6-methoxy-2-methylbenzoquinone(1,4), and 1-O-methylorcinol to a culture of P. cyclopium SK2N6 indicated that only the former two compounds are converted to penicillic acid. Thus, a new portion of the penicillic acid biosynthetic pathway is proposed.

PMID: 3662504

[top]


4mg noneto biocompare formulae omd ToxicPlants DictCellBio MolBioDict ( test position ) BioChemical Suppliers

A23187	Actinomycin	Aflatoxin	Anisomycin	Aphidicolin	Ascomycin
Bleomycin	Brefeldin	Cerulenin	Chromomycin	Geldanamycin	Cyclopiazonic acid
Cytochalasin	Forskolin	Fumagillin	Fumonisin	Hypericin	K252a
KT5823	Mitomycin	Nigericin	Ochratoxin	Oligomycin	Mycophenolic acid
Paclitaxel	Patulin	Paxilline	Penitrem	Puromycin	Penicillic acid
Radicicol	Rapamycin	Staurosporine	Sterigmatocystin	Thapsigargin	Tunicamycin
Verruculogen	Wortmannin