Apr 11

Effect of solar eclipse on microbes

Source: Shriyan A, Bhat AM, Nayak N. Effect of solar eclipse on microbes. J Pharm Bioall Sci [serial online] 2011 [cited 2011 Apr 19];3:154-7. Available from: http://www.jpbsonline.org/text.asp?2011/3/1/154/76498

A study about the effect of solar eclipses took place in India on 15 th January, 2010. It was a total eclipse in some parts of the country, while it was a partial eclipse in other parts. Since microorganisms play an important role in various phenomena on Earth, the study was undertaken to know the influence of solar eclipse on nature indirectly, by analyzing certain genotypic and phenotypic variations in prokaryotes and eukaryotes. Since yeast have similar gene expression as that of human beings, investigations were pursued on Candida albicans as well as the study of the effect of solar eclipse on cultures of Staphylococcus aureus, Klebsiella species, Escherichia coli, and C. albicans that were performed in laboratory.

There was significant change observed during exposure to normal sunlight and eclipse phase. Bacterial colonies showed difference in morphology on smear examination and sensitivity pattern during this study. One fungal species and three bacterial isolates were studied and changes were recorded. Fungal species showed a definite change in their morphology on exposure to sunlight during eclipse observed by stained smear examination from broth, plate, and slant. This study concludes that blocking of the sun rays during eclipse does not harm prokaryotes and eukaryotes, instead promoted the progeny of predators in the race of better acclimatization and survival in the natural and changing environmental conditions.(read more)

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