Skip to main content
. 2020 Oct 20;70(12):6032–6043. doi: 10.1099/ijsem.0.004424

Table 1.

Phenotypic characteristics that differentiate H. monodelphidis and H. didelphidarum from other species of the genus Helicobacter

Species: 1, H. monodelphidis ; 2, H. didelphidarum ; 3, H. acinonychis ; 4, H. ailurogastricus ; 5, H. anseris ; 6, H. apri ; 7, H. aurati ; 8, H. baculiformis ; 9, H. bilis ; 10, H. bizzozeronii ; 11, H. brantae ; 12, H. canadensis ; 13, H. canis ; 14, H. cetorum ; 15, H. cholecystus ; 16, H. cinaedi ; 17, H. cynogastricus ; 18, H. equorum ; 19, H. felis ; 20, H. fennelliae ; 21, H. ganmani ; 22, H. heilmannii ; 23, H. hepaticus ; 24, H. himalayensis ; 25, H. jaachi ; 26, H. japonicus ; 27, H. macacae ; 28, H. marmotae ; 29, H. mesocricetorum ; 30, H. muridarum ; 31, H. mustelae ; 32, H. pametensis ; 33, H. pullorum ; 34, H. pylori ; 35, H. rodentium ; 36, H. saguini ; 37, H. salomonis ; 38, H. suis ; 39, H. trogontum ; 40, H. typhlonius ; 41, H. valdiviensis. +, All strains examined give a positive result; −, all strains examined give a negative result; (+), 80–94 % strains positive; ±, 33–66 % strains positive; (−), 7–33 % strains positive; NA, nalidixic acid; CE, cephalotin; I, intermediate resistance; B, bipolar; M, monopolar; St, subterminal; Pt, peritrichous; U, unknown. Data are from references [11–13].

Characteristic

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Oxidase

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

Catalase

+

+

+

+

+

+

+

+

+

+

+

+

+

+

(+)

+

+

+

(+)

Nitrate reduction

(−)

+

+

+

+

+

±

+

+

+

+

+

Indoxyl acetate hydrolysis

+

+

+

+

+

+

(−)

+

+

Urease

+

+

+

+

+

+

+

+

+

+

Alkaline phosphatase

+

±

+

+

+

+

U

+

+

+

(−)

+

+

+

±

γ-Glutamyl transpeptidase

+

+

U

U

+

+

U

+

U

+

U

U

U

Growth at 42 °C

(−)

+

+

+

±

±

+

+

+

+

+

±

±

(−)

1 % glycine

U

+

+

+

U

+

+

Resistance to: NA (30 mg)

+

+

U

I

+

+

±

±

I

I

+

Resistance to CE (30 mg)

+

+

U

+

+

+

+

+

+

+

(−)

+

+

+

+

+

Periplasmic fibres

+

+

+

+

+

+

Distribution of flagella

B

B

M

B

St

B

B

B

B

B

St

B

B

B

M

B

B

M

B

B

Number of flagella

7–14

6–12

2–5

6–8

2

2

7–10

11–22

3–4

10–20

2

2

2

2

2

1–2

6–12

1

14–20

2

DNA G+C content (mol%)

35

32

30

37

30

40

36

45

35

46

39

34

48

36

35

37–38

44

38

45

35

Characteristic

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

Oxidase

+

+

+

+

+

+

+

+

U

+

+

+

+

+

+

+

+

+

+

+

+

Catalase

(−)

+

+

+

+

+

+

+

+

+

+

+

(+)

+

+

+

+

+

+

+

+

Nitrate reduction

+

+

+

+

+

+

+

+

+

+

+

Indoxyl acetate hydrolysis

+

+

+

U

+

(−)

(−)

U

+

Urease

+

+

+

+

+

+

(+)

+

+

+

(±)

Alkaline phosphatase

U

+

+

+

+

+

+

±

+

(−)

γ-Glutamyl transpeptidase

U

+

U

+

U

U

U

U

+

+

+

+

+

Growth at 42 °C

+

+

+

+

+

+

±

+

+

(−)

+

+

+

+

+

1 % Glycine

+

+

+

+

+

+

+

+

+

Resistance to: NA (30 mg)

U

+

+

+

+

+

(+)

+

+

U

+

(±)

Resistance to CE (30 mg)

+

U

+

+

+

+

+

+

+

+

+

(−)

+

+

±

U

+

+

+

Periplasmic fibres

+

+

+

+

Distribution of flagella

B

B

B

B

B

M

B

B

B

B

Pt

B

M

M

B

B

B

B

B

B

M

Number of flagella

2

4–10

2

1–2

7–14

1

2

2

2

10–14

4–8

2

1

4–8

2

6–12

10–23

4–10

5–7

1–2

1

DNA G+C content (mol%)

37

47

36

40

41

38

41

40

34

34

43

38

34–35

35–37

37

35

46

40

33

39

32