Find the species with the following information: ~Genus: serratia ~VP: Positive

Question

Find the species with the following information:

~Genus: serratia

~VP: Positive

~Glucose: Positive for both acid and gas production

~Lactose: Negative for both acid and gas production

~Sucrose: Positive for both acid and gas production

~Indole: Negative, no indole production

What are the top 2 species and why?

Table 5.34 Differentiation of Serratia species Test entomophila ficaria fonticola grimesii liquefaciens marcescens Voges- Proskauer ysine decarboxylase Arginine dihydrolase Ornithine decarboxylase Gelatin hydrolysis Malonate utilization D-Glucose, gas D-Adonitol, acid L-Arabinose acid Cellobiose, Dulcitol, acid Lactose, acid Melibiose, acid o-CH2-D- glucoside Raffinose, acid L-Rhamnose. acid D-Sorbitol, acid Sucrose acid D-Xylose, acid Deoxyribonuclease Lipase Pigment (red, pink, orange) odorifera odorifera biogroup 1 biogroup 2 plymuthica proteamaculans rubidaea

Explanation / Answer

Ans.) On the basis of the given information of various test, it is concluded that the given species is Serratia marcescens.

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