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Table 1 Samples profile and phenotypic and molecular features of actinomycetes hospital environmental isolates

From: Species diversity and molecular analysis of opportunistic Mycobacterium, Nocardia and Rhodococcus isolated from the hospital environment in a developing country, a potential resources for nosocomial infection

 

Isolates

Sample profile

Phenotypic features

16S rRNA analysis

Number of isolates

Designation

Sample type

Hospital department

Tm

TDS for water samples

pH

Opt. Tm

Growth rate

Pigment production

Nitrate reduction

Catalase

Tween 80 hydrolyses

Urease

Lysozyme Resistance

Decomposition of Tyrosine

Decomposition of Xanthene

Decomposition of Hypoxanthine

Similarity (%)

Base pair differences

Identification

5

AE13/AE14/AE15/AE16/AE17

Soil/Drinking water

Men Surgery / Emergency

7–14

200

7.4

35

R

N

+

+

+

100

0/925

M. setense

2

AE20/AE21

Soil/Well water

Pediatrics / Maternity

12–21

582

7.6

35

S

N

100

0/830

M. lentiflavum

1

AE4

Shower water

Women Surgery

20

312

7.2–7.8

35

S

N

+

+

99.9

1/640

M. conceptionense

2

AE2/ AE3

Dust /Soil

ICU/ Oncology

20–26

 

8

35

R

White

+

+

100

0/735

M. mucogenicum

1

AE26

Drinking water

General

18

192

7.4

30

R

White

+

+

100

0/870

M. septicum

4

AE5/AE6/AE7/AE8

Dust/Soil/ Drinking Water

Men Surgery/ Maternity

14–21

265

7–8.2

35

R

N

+

100

0/959

M. fortuitum

2

AE18/ AE19

Soil

Emergency/ ICU

22–26

 

6.9

35

S

N

+

+

100

0/959

M. chelonae.

3

AE23/AE24/AE25

Drinking Water/ Shower water

Neurosurgery/ Ophthalmology

20–30

168–245

7.2–8

35

S

Orange

+

+

100

0/860

M. gordonae

1

AE42

Soil

Women Surgery

33

 

7.6

35

S

Pinkish

+

+

100

0/790

N. rhamnosophilia

1

AE39

Soil

Pediatrics

30

 

7.6

30

R

 

+

+

100

0/830

N. bravicatena

1

AE9

Dust

Emergency

9

 

7.3

30

R

Yellow

+

+

+

100

0/830

M. flavescens

2

AE11/AE12

Soil/Drinking water

Ophthalmology

8–32

96

6.7–8

35

R

N

+

+

+

99.9

1/977

M. massiliense/abscessus complex

1

AE22

Well water

Green space

13

412

7

35

R

N

+

99.9

1/880

M. arupense

2

AE40/AE41

Soil/Shower water

Emergency/ Oncology

12–22

212

8.2

35

R

Pink

+

+

+

100

0/847

N. asteroides

2

AE34/AE35

Dust

Men Surgery/ICU

8–21

 

7.8

35

R

Orange

+

+

+

99.78

2/800

N. farcinica

1

AE10

Water

Infectious diseases

25

 

8

30

S

  

+

100

0/920

M. doricum

3

AE36/AE37/AE38

Soil/Drinking water

Men surgery/ Infectious disease

8–16

156

6.6–7.4

35

R

White

+

+

+

100

0/912

N. cyriacigeorgica

1

AE1

Soil

Emergency

13

 

8.2

35

R

Yellow

+

+

99.9

1/932

M. frederiksbergense

1

AE43

Soil

Pediatrics

13

 

7.1

25

R

Yellow

+

+

+

+

+

+

100

0/694

S. heliomycini

1

AE44

Soil

Emergency

16

 

8

30

R

Red

+

+

+

100

0/763

S. albus

1

AE45

Dust

Surgery

21

 

7.8

30

R

White

+

+

+

+

+

100

0/940

S. albogriseolus

4

AE27/AE28/AE29/AE30

Soil/Drinking water

Men Surgery / Emergency

14–22

112

6.3

30

R

White

+

+

+

+

+

+

100

0/853

R. erythropolis

2

AE31/AE32

Soil/Shower water

Pediatrics / Maternity

28

195

6.8

30

R

Yellow

+

+

 

+

+

+

+

99.9

2/993

R. equi

1

AE33

Well Water

Women Surgery

21

523

7.2

30

R

N

+

+

+

100

0/685

R. facians

1

AE46

Soil

Infectious diseases

13

 

7.3

30

R

White

+

+

+

100

0/745

A. globiformis

2

AE47/AE48

Drinking Water

Men surgery/ Infectious disease

16

143

6.7–8

30

R

Reddish

+

+

100

0/960

L. shinushuensis

1

AE48

Dust

Emergency

21

 

7

30

R

White

+

+

100

0/800

G. terae

1

AE49

Soil

Pediatrics

14

 

8.2

30

R

White

+

+

+

100

0/850

D. maris

  1. 1; Tm; Temperature
  2. 2; R; Rapid grower < 7 days; S: Slow grower > 7 days
  3. 3; Similarity; % similarity to the nearest validated species
  4. 4; Base pair differences: the number of nucleotide differences between isolates and the nearest validated species
  5. 5. TDS: total dissolved solids