Open AccessEffects of tropical solar radiation on the motility of filamentous cyanobacteria
Author(s) -
Donkor Victoria A.,
Amewowor Damina H.A.K.,
Häder DonatP.
Publication year - 1993
Publication title -
fems microbiology ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.377
H-Index - 155
eISSN - 1574-6941
pISSN - 0168-6496
DOI - 10.1111/j.1574-6941.1993.tb00026.x
Subject(s) - biology , cyanobacteria , anabaena variabilis , motility , oscillatoria , botany , anabaena , bacteria , genetics
The effects of tropical solar radiation on the motility of the cyanobacteria Anabaena variabilis, Oscillatoria tenuis and two strains of Phormidium uncinatum were studied in Ghana (4.30°N). The percentages of motile filaments were drastically reduced by unfiltered solar radiation. Covering the organisms with various long pass or band pass filters (WG320, GG395 or UG5) revealed that the UV‐B, UV‐A and visible light components of the solar spectrum were all effective in impairing motility in these organisms. Only partial recovery was observed and only after short exposure times.