Effect of ultraviolet-A (UV-A) light on growth, photosynthetic activity and production of biopterin glucoside by the marine UV-A resistant cyanobacterium Oscillatoria sp.

Youji Wachi, J. Grant Burgess, Kaori Iwamoto, Noriko Yamada, Noriyuki Nakamura, Tadashi Matsunaga

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We have isolated a marine planktonic cyanobacterium Oscillatoria sp. NKBG 091600 which is resistant to ultraviolet-A (UV-A) irradiation. In response to UV-A irradiation this cyanobacterium produces high levels of a UV-A absorbing compound which was identified previously as biopterin glucoside. Here, we have investigated the effect of UV-A light intensity on growth, biopterin glucoside production and photosynthetic activity. Oscillatoria sp. NKBG 091600 could grow at UV-A intensities of up to 800 μW/cm2 and at 300 μW/cm2 could grow as well as in the absence of UV-A irradiation. In addition, pre-culture of cells with UV-A protected cells from UV-A induced inhibition of photosynthetic activity. Detection of biopterin glucoside levels in irradiated cells by HPLC demonstrated that after 10 h there was a rapid increase in biopterin glucoside content. This increase was dependent on the intensity of the UV-A irradiation.

Original languageEnglish
Pages (from-to)165-168
Number of pages4
JournalBBA - General Subjects
Volume1244
Issue number1
DOIs
Publication statusPublished - 1995 May 11
Externally publishedYes

Fingerprint

Oscillatoria
Biopterin
Glucosides
Cyanobacteria
Ultraviolet Rays
Irradiation
Growth
Cell Culture Techniques
High Pressure Liquid Chromatography
Cells

Keywords

  • (Oscillatoria sp.)
  • Biopterin glucoside
  • Cyanobacterium
  • Ultraviolet A

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology

Cite this

Effect of ultraviolet-A (UV-A) light on growth, photosynthetic activity and production of biopterin glucoside by the marine UV-A resistant cyanobacterium Oscillatoria sp. / Wachi, Youji; Grant Burgess, J.; Iwamoto, Kaori; Yamada, Noriko; Nakamura, Noriyuki; Matsunaga, Tadashi.

In: BBA - General Subjects, Vol. 1244, No. 1, 11.05.1995, p. 165-168.

Research output: Contribution to journalArticle

Wachi, Youji ; Grant Burgess, J. ; Iwamoto, Kaori ; Yamada, Noriko ; Nakamura, Noriyuki ; Matsunaga, Tadashi. / Effect of ultraviolet-A (UV-A) light on growth, photosynthetic activity and production of biopterin glucoside by the marine UV-A resistant cyanobacterium Oscillatoria sp. In: BBA - General Subjects. 1995 ; Vol. 1244, No. 1. pp. 165-168.
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