Table 1.

Bacterial communities on leaves of perennial rye (Lolium perenne)a and olive (Olea europea)b

Plant and bacterial component or species Relative abundancec (%)
Perennial rye
Pseudomonas fluorescens 20.12
Xanthomonas campestris 19.64
 “Coryneform bacteria”8.37
 Yellow chromogens4.83
Flexibacter spp.4.66
Listeriaspp.4.02
 Pink chromogens3.86
Staphylococcus saprophyticus 1.77
 Other gram-negative rods1.61
Klebsiella spp.0.96
Acinetobacterspp.0.96
Erwinia herbicola 0.80
Pseudomonas spp.0.64
Staphylococcus spp.0.64
Bacillusspp.0.32
Micrococcus luteus 0.32
 Orange chromogens0.32
 Unidentified isolates26.57
Olive
Pseudomonas syringae 51.0
Xanthomonas campestris 6.7
Erwinia herbicola 6.0
Acetobacter aceti 4.7
Gluconobacter oxydans 4.3
Pseudomonas fluorescens 3.9
Bacillus megaterium 3.8
Leuconostoc mesenteroides subsp.dextranicum 3.1
Lactobacillus plantarum 2.8
Curtobacterium plantarum 2.2
Micrococcus luteus 2.2
Arthrobacter globiformis 1.4
Klebsiella planticola 1.2
Streptococcus faecium 1.2
Clavibacter sp.0.98
Micrococcussp.0.82
Serratia marcescens 0.81
Bacillus subtilis 0.57
Cellulomonas flavigena 0.4
Erwinia sp.0.37
Zymomonas mobilis 0.3
Bacillussp.0.29
Alcaligenes faecalis 0.27
Erwinia carotovora 0.08
Pseudomonas aeruginosa 0.04
  • a Adapted from Austin et al. (13).

  • b Adapted from Ercolani (71).

  • c Total numbers of isolates tested were 621 for perennial rye and 1,701 for olive.