Topic 19: Unknown Identification and Bergey's Manual

Taxa

________ used for bacteria and arachaea are phylum, class, order, family, genus, and species.

dichotomous classification system

a population is repeatedly divided into two parts until a description identifies a single member

Most bacteria are identified through evaluation of ___ and ___ characterisitics.

primary and secondary

What are primary characterisitics of bacteria?

morphology and growth patterns

What are secondary characterisitics of bacteria?

metabolism and serology

How is bacteria classified in Bergey's manual?

based on similarities in their ribosomal RNA (rRNA)

What domains are included in Bergey's manual?

bacteria and archaea

Similar rRNA sequences are grouped together into ___ in Bergey's Manual.

taxa

What taxa are used for bacteria and archaea?

phylum, class, order, family, genus, and species

What is dichotomous classification system?

a population is repeatedly divided into two parts until a description identifies a single member

Dichotomous classification system is also called an ___ since there is no single correct way to write one.

artifical key

What is the first step of identification?

check the purity of the culture that you have been given and prepare stock and working cultures