Читать книгу The Fundamentals of Bacteriology - Charles Bradfield Morrey - Страница 16

Cells without a nucleus, but containing sulphur granules, may be colorless or contain bacteriopurpurin and be colored reddish or violet.

1. Family Beggiatoaceæ.

 Genus 1. Thiothrix Winogradsky.

 Genus 2. Beggiatoa Trevisan. Of interest since it is without a sheath, is motile, but without flagella (Fig. 59).

2. Family Rhodobacteriaceæ.

This has five subfamilies and twelve genera, most of which are due to the Russian bacteriologist Winogradsky who did more work than anyone else with the sulphur bacteria.