THE BREAKDOWN OF PARAQUAT AND DIQUAT BY SOIL FUNGI

S. N. SMITH, A. J E LYON, Ismail Sahid

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Mucor hiemalis, Zygorhynchus heterogamous, Aspergillus niger and Penicillium frequentans were incubated in media containing either [methyl‐14C] paraquat or [ethylene‐14C] diquat. Aspergillus niger liberated 14CO2 from both herbicides and Penicillium frequentans only from paraquat. Mucor hiemalis and Zygorhynchus heterogamous were unable to release 14CO2 from either. Those species able to degrade paraquat or diquat have correspondingly low intracellular levels of the herbicides and are able to tolerate high concentrations in the medium. By contrast, species unable to break them down are characterized by high intracellular levels and by their inability to grow at low concentrations. Tolerance to these herbicides appears to be the result of an ability to degrade them.

Original languageEnglish
Pages (from-to)735-740
Number of pages6
JournalNew Phytologist
Volume77
Issue number3
DOIs
Publication statusPublished - 1976
Externally publishedYes

Fingerprint

Diquat
diquat
Paraquat
paraquat
soil fungi
Penicillium frequentans
Herbicides
Mucor hiemalis
Mucor
Fungi
Soil
Aspergillus niger
herbicides
Penicillium

ASJC Scopus subject areas

  • Physiology
  • Medicine(all)
  • Plant Science

Cite this

THE BREAKDOWN OF PARAQUAT AND DIQUAT BY SOIL FUNGI. / SMITH, S. N.; LYON, A. J E; Sahid, Ismail.

In: New Phytologist, Vol. 77, No. 3, 1976, p. 735-740.

Research output: Contribution to journalArticle

SMITH, S. N. ; LYON, A. J E ; Sahid, Ismail. / THE BREAKDOWN OF PARAQUAT AND DIQUAT BY SOIL FUNGI. In: New Phytologist. 1976 ; Vol. 77, No. 3. pp. 735-740.
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