Response of Fusarium semitectum conidia to gamma radiation

M. Lebaijuri, I. Bahari, M. Omar, Z. Bidin

Research output: Contribution to journalArticle

Abstract

This paper reports on studies carried out to investigate response of conidia from Fusarium semitectum irradiated with gamma-rays in air-, nitrogen- and oxygen-saturated 1/15M phosphate buffer, and potentially lethal damage (PLD) repair of the conidia when incubated after irradiation up to 96 h at 30°C in the same buffer. Survival curves for conidia irradiated between 0 to 3.0 kGy in air- and nitrogen-saturated buffer exhibited distinct patterns of initial concaves at the lower dose range (less than 1.0 kGy) and followed by linear portions at the higher dose range. Conidia irradiated in oxygen-saturated buffer exhibited a linear survival curve. The D10 for conidia, i.e., the dose required to reduce the initial population by 1 log cycle determined at the linear portions of survival curves increased in the order of oxygen-, air- and nitrogen-saturated buffer. Unlike mammalian and some bacterial cells, F. semitectum conidia apparently lacked PLD repair mechanism.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalJournal of Antibacterial and Antifungal Agents, Japan
Volume24
Issue number1
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Fungal Spores
Gamma Rays
Fusarium
Buffers
Nitrogen
Air
Oxygen
Phosphates
Population

Keywords

  • conidia
  • Fusarium semitectum
  • gamma-ray irradiation
  • recovery
  • survival curve

ASJC Scopus subject areas

  • Microbiology

Cite this

Lebaijuri, M., Bahari, I., Omar, M., & Bidin, Z. (1996). Response of Fusarium semitectum conidia to gamma radiation. Journal of Antibacterial and Antifungal Agents, Japan, 24(1), 9-14.

Response of Fusarium semitectum conidia to gamma radiation. / Lebaijuri, M.; Bahari, I.; Omar, M.; Bidin, Z.

In: Journal of Antibacterial and Antifungal Agents, Japan, Vol. 24, No. 1, 1996, p. 9-14.

Research output: Contribution to journalArticle

Lebaijuri, M, Bahari, I, Omar, M & Bidin, Z 1996, 'Response of Fusarium semitectum conidia to gamma radiation', Journal of Antibacterial and Antifungal Agents, Japan, vol. 24, no. 1, pp. 9-14.
Lebaijuri, M. ; Bahari, I. ; Omar, M. ; Bidin, Z. / Response of Fusarium semitectum conidia to gamma radiation. In: Journal of Antibacterial and Antifungal Agents, Japan. 1996 ; Vol. 24, No. 1. pp. 9-14.
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