TODAY IN OUR LAB: Roseomonas rhizosphaerae

Roseomonas rhizosphaerae

Roseomonas rhizosphaerae is a species of Gram-negative, strictly aerobic, coccobacilli-shaped, pink-colored bacterium that was first isolated from soil under long-term application of triazofos in Yangzhou, Jiangsu province, China.

Here are some interesting facts about Roseomonas rhizosphaerae:

  • It is a triazophos-degrading bacterium that can break down organophosphate pesticides.
  • It is a novel aerobic, non-spore-forming, non-motile, catalase- and oxidase-positive, Gram-stain-negative, coccoid to short-rod-shaped bacterial strain.
  • It has a unique fatty acid composition and biochemical characteristics that distinguish it from all recognized species of the genus Roseomonas.
  • It has an optimum growth temperature of 28°C but can grow in the 15-40°C range, and its optimum pH is 7.5, but it can grow in pH 5.0-8.0.
  • It belongs to the genus Roseomonas, which is a significant group of bacteria that is invariably of great clinical and ecological importance.

The genus Roseomonas is polyphyletic in nature, forming seven major groups, and has been re-evaluated and reclassified into six novel genera as Pararoseomonas, Falsiroseomonas, Paeniroseomonas, Plastoroseomonas, Neoroseomonas, and Pseudoroseomonas.

In conclusion, Roseomonas rhizosphaerae is a unique and interesting bacterium that has the ability to degrade organophosphate pesticides and has a distinct fatty acid composition and biochemical characteristics that distinguish it from other species in the genus Roseomonas.

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