Word: bacterias
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...around three greenhouse-covered ponds built on an incline. The lowest pond contains a variety of edible fish, mostly the tasty tropical tilapia (somewhat like the sunfish). Pumped by the windmill, the water from this pond is passed through a solar heater, then circulated through a bed of crushed, bacteria-laden shells in the topmost pond. The bacteria not only detoxify the fish wastes but convert the ammonia in them to nitrites and nitrates, which are used to fertilize algae in another part of the pond...
...diarrhea after eating in a local restaurant. No one died in the outbreak, but about 50 were sufficiently sick to consult physicians, eleven were afflicted seriously enough to require hospitalization, and many were bedridden for one or more days. Normally, such an outbreak, which was traced to Salmonella bacteria, receives little attention from health authorities...
...there is a new threat. Paradoxically, it involves chlorination, the process that most U.S. towns and cities use to kill the disease-carrying bacteria in ordinary drinking water. When water from a polluted source, like Lake Erie or the Mississippi River, enters a treatment plant, the chlorine apparently interacts with industrial and agricultural wastes to produce chemical compounds that have been shown to cause cancer in laboratory animals...
Krause said that analysis of a stool sample from one person hospitalized for the sickness showed no signs of staphylococcal food poisoning, a disease that appears one to six hours after ingestion of either improperly refrigerated meat or handlercontaminated milk products. But a stool sample could not reveal staph bacteria, because of the peculiar nature of the toxin...
Palade, a Rumanian-born researcher who joined Rockefeller U. in 1946, combined Claude's two techniques to learn even more about cell structure. He delineated the fine structure of the mitochondria. These are bacteria-like bodies that probably joined the cell early in the evolutionary process and have lived in a symbiotic relationship with it ever since, helping it to "breathe." He also discovered and described the small granular components called ribosomes, which were later found to help manufacture the proteins essential for the proper functioning of the cell...