Hypothesis - can UV produced by intracellular bacteria cause cancer?

Article Abstract:

Ultraviolet (UV) radiation produced by microorganisms was presumed to induce the development of cancer. Although the theory was still unproven, the link between the carcinogenic etiology of gastric cancer was attributed to the presence of Helicobacter pylori. The presumption on the carcinogenic effects of bacteria required the criteria that the bacteria must first be present in pre-cancerous cells and tumors and that the bacteria must be capable of producing UV. In case the hypothesis was correct, vaccines must be produced to prevent bacterial growth.

Causes of, Physiological aspects, Ultraviolet radiation, Bacteria, Cancer

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Growth of green sulphur bacteria in experimental benthic oxygen, sulphide, pH and light gradients

Article Abstract:

An artificial benthic environment was used in the determination of the effects of oxygen, sulphide, pH and light on the growth of the CE 2401 strain of Prosthecochloris aestuarii, a green sulphur bacteria. Results indicate that bacterial growth is maximal beyond oxygen penetration depth, that sulphide flux limits microbial activity and that the bacteria exhibit adaptation to light regime changes.

Environmental aspects, Bacterial growth, Sulfur bacteria

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