Lecture 2 Lecture 2. Kinds and characteristics of microorganisms in soil I. Taxonomy A. Phylogeny is now determined from ribosomal RNAs which are easy to sequence and conserve evolutionary changes.
Microorganisms fall within all domains.
The major microbial groups A. Viruses 1. Acellular intracellular inhabitants, 20-300 nm diameter, obligate parasites of bacteria, fungi and other organisms. Technique used in genetic engineering. Importance under soil field conditions not known. Survive long periods in soil through formation of inclusion bodies and sorption to clay.