Article · Wikipedia archive · Last revised Jun 19, 2026

Polyoxins

Polyoxins are a group of peptidyl nucleoside antibiotics. They are a complex produced by Streptomyces cacaoi var. asoensis and S. piomogenus. Polyoxin compounds contain the same base structure but differ in the composition of certain functional groups. At least fifteen polyoxin compounds are known, designated as polyoxin A, B, C and so forth. Polyoxins A through O are known and all except for 'C' and 'I' have fungicidal activity against phytopathogenic fungi. Some polyoxins have been used as agricultural fungicides because of this.

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Polyoxin D source ↗

Polyoxins are a group of peptidyl nucleoside antibiotics.12 They are a complex produced by Streptomyces cacaoi var. asoensis and S. piomogenus.3 Polyoxin compounds contain the same base structure but differ in the composition of certain functional groups. At least fifteen polyoxin compounds are known, designated as polyoxin A, B, C and so forth. Polyoxins A through O are known and all except for 'C' and 'I' have fungicidal activity against phytopathogenic fungi.3 Some polyoxins have been used as agricultural fungicides because of this.

Polyoxins work by inhibiting the biosynthesis of chitin.42

References

References

  1. Brock Biology of Microorganisms (2003, Pearson Education Limited) Madigan (et al); pg.708
  2. Li, Jine; Li, Lei; Feng, Chi; Chen, Yihua; Tan, Huarong (2012-10-08). "Novel polyoxins generated by heterologously expressing polyoxin biosynthetic gene cluster in the sanN inactivated mutant of Streptomyces ansochromogenes". Microbial Cell Factories. 11 (1): 135. doi:10.1186/1475-2859-11-135. ISSN 1475-2859. PMC 3520715. PMID 23043373.
  3. The Merck Index (15th ed.). Royal Society of Chemistry. 2013. p. 1410. ISBN 978-1-84973-670-1.
  4. "Biology of Microorganisms" (2012, Pearson Education Limited) Brock; pg. 777-778