Below are morphological, physiological and biochemical characteristics of an unknown luminous bacterium isolated from the gills of a marine fish. Use the data below to identify the isolate. Make an...

Test

Unknown Isolate B

1

Luminescence

Positive

2

Cell Shape

Straight Rods

3

Gram Staining

Negative

4

Oxygen Requirement

Facultative Anaerobe

5

Motility           (Hanging

Drop)

Motile

6

Growth at

0% NaCl

Negative

7

3% NaCl

Positive

  8

6 % NaCl

Positive

9

Accumulation of PHB

Positive

10

Flagella

1 Polar

11

Oxidase

Positive

12

Nitrate Reduction

13

Gelatinase

Negative

14

Growth at 35^OC

Positive

15

Growth at 4^OC

Negative

16

Methyl Red

Positive

17

Voges-Proskauer

Positive

18

Catalase

Positive

19

Starch Hydrolysis

Negative

20

Lysine Decarboxylase

Negative

21

Indole Production

Negative

22

Utilization of

23

Glucose

Positive (fermentative)

24

Lactose

Positive (fermentative)

25

Mannitol

Negative

26

Sucrose

Negative

27

Xylose

Positive (fermentative)

28

Inositol

Negative

  29

Galactose

Positive (oxidative)