Effects of Photosynthetic Bacteria on Vicia faba micronucleus Induced by Rural Sewage

To study the inhibitory effect of Photosynthetic bacteria on micronucleated cells of Vicia faba root tips induced by rural sewage, Vicia faba root tips were treated with different concentrations mixture of photosynthetic bacteria and sewage.The impact on root tip cells was analyzed by making temporary mounts, counting the mitotic index, micronucleus, micronucleus index and micronucleus inhibition rate. The results showed that when the volume fraction of liquid photosynthetic bacteria increased, the mitotic index and micronucleus inhibition rate increased, while the micronucleus and micronucleus index decreased. Photosynthetic bacteria reduced the genetic damage of chromosome, alleviated the inhibition effect on mitotic,lowered the formation of micronuclei and chromosome aberrations in root tip cells by decomposing the pollutants in rural sewage.