David Coil edited Results and Discussion.md  almost 9 years ago

Commit id: c20a3f43c5de384152888151b4949b2dc22277ad

deletions | additions      

       

Cells were non-motile and not observed to form spores or possess flagella, though over 30 flagella or flagella-associated genes are present in the genome. In contrast, the genome for a non-motile close relative (_Porphyrobacter cryptus_) does not contain any flagellar genes so it is possible that strain Coronado(T) is motile under specific conditions. Unlike most members of the _Erythrobacteraceae family_, strain Coronado(T) is oxidase-negative. This strain is catalase-positive, and unable to hydrolze casein or starch.  Cells were oval or rod shaped and ranged in length from 1.2um 1.2μm  to 2.2um 2.2μm  with an average of 1.6um 1.6μm  (Figure 1). Cell width ranged from 0.6um 0.6μm  to 1um 1μm  with an average of 0.8um. 0.8μm.  Growth was only observed under aerobic conditions, from 4°C to 28°C, with optimal growth around 25°C. Low levels of growth were observed at pH 6.0 up to pH 8.0, maximum growth occurred around neutral pH. NaCl was required for growth, and the strain could not grow at >1.5% NaCl, optimal growth was at 0.5% NaCl. No statistically significant difference in growth was observed between earth and microgravity aboard the International Space Station (ISS).