Protection of energy transfer process in isolated phycobilisome by 'white light' from ultraviolet-B induced damage in the cyanobacterium Spirulina platensis

S. Rajagopal, Prasanna Mohanty, S. D S Murthy

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Effect of UV-B (1.9 W m-2) alone or in combination with supplemental 'white light', WL (20 W m-2) exposure was studied on the energy transfer process of intact phycobilisomes isolated from Spirulina platensis. Exposure of UV-B or supplemental irradiation induced a decrease in room temperature fluorescence intensity and caused a shift towards shorter wavelengths. The low temperature fluorescence measurements showed that UV-B impairs energy transfer from phycocyanin to allophycocyanin B and the extent of damage may be reduced by the exposure to supplemental WL.

Original languageEnglish
Pages (from-to)617-620
Number of pages4
JournalPhotosynthetica
Volume36
Issue number4
DOIs
Publication statusPublished - 1999

Fingerprint

Phycobilisomes
Spirulina
phycobilisome
Spirulina platensis
Energy Transfer
white light
Cyanobacteria
Ultraviolet Rays
energy transfer
ultraviolet radiation
Fluorescence
Phycocyanin
Temperature
fluorescence
Light
wavelengths
ambient temperature
irradiation
temperature

Keywords

  • Allophycocyanin
  • Chlorophyll fluorescence
  • Phycocyanin

ASJC Scopus subject areas

  • Plant Science

Cite this

Protection of energy transfer process in isolated phycobilisome by 'white light' from ultraviolet-B induced damage in the cyanobacterium Spirulina platensis. / Rajagopal, S.; Mohanty, Prasanna; Murthy, S. D S.

In: Photosynthetica, Vol. 36, No. 4, 1999, p. 617-620.

Research output: Contribution to journalArticle

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