microbial diversity- bacteria

What are the main methods of bacterial taxonomy based on phenotypic characteristics?

Cell morphology, metabolic activity, staining, pathogenicity, and nutritional needs.

What is the significance of 16S rRNA sequencing in bacterial taxonomy?

It is used for genotypic classification of prokaryotes, including bacteria and archaea.

physiological mechanisms

metabolism and biochemistry

morphological mechanisms

appearance

What is a major characteristic of thermophiles?

They can survive in temperatures ranging from 40 to 120 degrees Celsius.

what are psychrophiles?

Microorganisms that thrive at low temperatures, typically below 15 degrees Celsius.

Define halophiles in relation to salinity.

Microorganisms that thrive in high-salinity environments.

What type of microorganisms are acidophiles?

Organisms that thrive in acidic environments.

what type of microorganisms are alkaliphiles?

organisms that thrive in alkaline environments.

What term describes bacteria that can survive under high pressure?

Barophiles.

How many bacterial phyla have cultured representatives according to LPSN?

55 bacterial phyla.

Which four bacterial phyla account for 90% of characterized bacteria?

Proteobacteria, Acinetobacteria, Firmicutes, and Bacteroides.

What defines ecological diversity in bacteria?

The relationships of organisms with their environment and other organisms in the same niche.

What is the term for bacteria that have a status of ‘Candidatus’?

Bacteria that have been identified but not yet cultured.

thomas morgan experiment

used drosophila to eye colour and wing shape cos they’re linked as they/re on the same chromosome. gene linkage. cross over frequency is a function of the distance between two gene loci. closer together means less likely to be separated by recombination.

What is the significance of functional diversity in microbial taxonomy?

It refers to the presence or absence of genes involved in specific functional mechanisms.