单词	micrococcus
释义	micrococcus /ˌmʌɪkrəʊˈkɒkəs / noun (plural micrococci /ˌmʌɪkrəʊˈkɒk(s)ʌɪ/ /ˌmʌɪkrəʊˈkɒk(s)i/) A spherical bacterium found on dead or decaying organic matter. Family Micrococcaceae of Gram-positive non-motile bacteria, in particular the genera Micrococcus and Staphylococcus. The only organisms isolated were diphtheroids, coagulase-negative staphylococci, and micrococci.... The majority of flora isolated were gram-positive cocci, including coagulase-negative staphylococci and micrococci, present in all positive cultures. Spirochetes live in our gums; staphylococci, micrococci, and a small yeast from the genus Pityrosporon clothe our hides. Derivatives micrococcal adjective ... DNA was digested to mononucleotides with micrococcal nuclease and spleen phosphodiesterase at 37°C for 3.5 h. The spt6-140 mutation alters transcription and chromatin in our inverted repeats, as determined by Northern and micrococcal nuclease sensitivity analyses, respectively. To further study the basis for these changes in chromatin organization, we used micrococcal nuclease digestion to determine the arrangement of nucleosomes in this region.
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