In my current research I have isolated some purple coloured bacteria in NA medium and found them to be growing in low temperature in-vitro.
Isolation and Characterization of Psychrophilic Purple Bacteria From Antarctica
https://www.researchgate.net/publication/302272537_Isolation_and_Characterization_of_Psychrophilic_Purple_Bacteria_From_Antarctica
may be helpful
Chapter Isolation and Characterization of Psychrophilic Purple Bacte...
Thank u Mustaq Ahmed Sir...I would definitely go through the manuscript
Please have a look at this researchgate links.
https://www.researchgate.net/publication/226476437_An_Overview_of_Purple_Bacteria_Systematics_Physiology_and_Habitats
Chapter An Overview of Purple Bacteria: Systematics, Physiology, and Habitats
Thank u very much Arvind Singh Sir
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