Unformatted text preview: different levels and that the E. coli cells were able to migrate into the roots of the spinach plants. In addition, the researchers examined baby spinach plants over the coarse of 28 days after germination to see whether any of the E. coli strains were taken up past the roots and into the plant’s interior structure. For this part of the study they grew baby spinach in pasteurized soils and and hydrophonic media. The researchers found that at day 28, there was no evidence that E. coli had become internalized in the leaves or shoots of baby spinach plants grown in soil. E. coli was detected in hydrophonically grown spinach samples analyzed 14 and 21 days after germination but at 28 days the bacteria levels were very low. The scientists believe that the results confirm that E. coli can grow in soils but that it is highly unlikely that foodborne illness can result from the bacterium becoming internalized through roots in leafy produce....
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This note was uploaded on 03/24/2012 for the course BMS 127 taught by Professor Meyer during the Fall '11 term at Santa Barbara City.
- Fall '11