Modification of ultraviolet sensitivity of the green alga Scenedesmus obliquus (Turpin) Kuetzing by acriflavine

✍ Scribed by U. N. Rai; Dr. S. B. Agrawal

• Publisher: John Wiley and Sons
• Year: 1985
• Tongue: English
• Weight: 487 KB
• Volume: 25
• Category: Article
• ISSN: 0233-111X
• DOI: 10.1002/jobm.3620250618

✦ Synopsis

The effect of pre-and post-irradiation treatments with acriflavine on the kinetics of ultraviolet inactivation of the green alga Scenedesmus obliquua (TURPIN) KUETZING has been studied. Acriflavine is found to modify the UV-doses. Pre-irradiation treatmcnt of the alga lessens but postirradiation treatment adds to the extent of UV-inactivation. Incorporation of the dye in the algal suspension during irradiation also elicits a protective effect against UV-inactivation. The observations are suggestive of an instantaneous uptake and incorporation of the dye in UV-sensitive components of algal cells-resulting in altered response of the pre-, during-, and post-irradiation dye-treated alga to W and provide evidence for the operativity of two repair system, i.e. lightindependent and light-dependent repair of the lesions in this alga.