A generic story (literally), but timely indeed, as algae seem much
more innocuous than nuclear fission.
Chlamydomonas is a common genus that I have seen growing in eutrophic
waters and also observed oil bodies within their cells.
So there may be some truth to the story.
note: a convincing first line of the fourth paragraph
here also is the published article:
Morowvata et al. 'Chlamydomonas as a “new” organism for biodiesel
production' Bioresource Technology
Volume 101, Issue 6, March 2010, Pages 2059-2062