A lipopolysaccharide obtained in a dialyzed phenol extract from the rickettsia Coxiella burneti produced the following effects in guinea pigs after intraperitoneal injection: hyperthermia, loss of body weight, increased liver weight and concomitant lipid infiltration, elevated levels of hepatic and plasma cortisol, increased incorporation of [(3)H]orotic acid into hepatic 28S and 18S ribosomal ...

Examination of the effects of prumycin on sensitlve Botrytis cinerea and Sarcina lutea showed that inhibition of protein synthesis in both organisms and reduction in ribonucleic acid synthesis in Botrytis cinerea are among the mechanisms of action. The inhibition of RNA biosynthesis in Botrytis cinerea is probably a secondary effect resulting from the termination of protein synthesis rather tha...

Genes encoding ribosomal RNA (rDNA) are universal key constituents of eukaryotic genomes, and the nuclear genome harbours hundreds to several thousand copies of each species. Knowledge about the number of rDNA loci and gene copy number provides information for comparative studies of organismal and molecular evolution at various phylogenetic levels. With the exception of seed plants, the range o...