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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