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Table 2 PLFA biomass parameters as affected by inoculation with Pseudomonas spp., Bacillus amyloliquefaciens, alone or in combination with mycorrhizal inoculum and/or humic acids

From: Cooperation among phosphate-solubilizing bacteria, humic acids and arbuscular mycorrhizal fungi induces soil microbiome shifts and enhances plant nutrient uptake

 

B0

B0M

B2

B2M

B2HA ng g soil−1

B2HAM

B3

B3M

B3HA

B3HAM

Gram+ PLFAs

81.7 ± 3.2ab

91.6 ± 1.2bcd

103.7 ± 9.7e

97.9 ± 9.6de

93.4 ± 5.6cde

90.2 ± 7.0abc

94.4 ± 13.1cde

84.04 ± 6.9abc

80.17 ± 7.95a

84.5 ± 7.8abc

Gram− PLFAs

102.9 ± 6.1ab

97.6 ± 2.9a

115.2 ± 9.5b

96.5 ± 11.1a

100.6 ± 2.6ab

88 ± 2.8a

102.8 ± 6.5ab

92.96 ± 5.9a

93.06 ± 5.4a

93.3 ± 7.3a

Bacterial PLFAs

184.6 ± 7.6a

189.2 ± 3.3ab

218.8 ± 18.4b

194.5 ± 19.7ab

194.01 ± 7.96ab

178.2 ± 7.5a

197.2 ± 18.7ab

177.1 ± 12.2a

172.2 ± 8.1a

177.7 ± 14.4a

Fungal PLFAs

75.9 ± 6.6d

50.8 ± 2.9a

75.6 ± 7.1d

59.6 ± 7.2bc

59.6 ± 3.7bc

51.3 ± 1.1a

66.3 ± 9.6c

59.9 ± 3.8bc

55.1 ± 3.3ab

54.2 ± 4.3ab

Actinomycetal PLFAs

30.3 ± 4.2a

29.3 ± 1.8a

33.3 ± 6.9a

30.5 ± 4.6a

30.3 ± 1.5a

24.7 ± 3.7a

30.7 ± 3.8a

24.6 ± 5.9a

30.1 ± 3.5a

29.6 ± 4.95a

Total PLFAs

308.8 ± 13ab

296.5 ± 9.6ab

355.9 ± 34.6c

314.8 ± 28.3abc

314.4 ± 8.5abc

280 ± 11.8a

326.8 ± 29.7bc

296.8 ± 17.2ab

297.1 ± 12.7ab

322.7 ± 23.6abc

C16:1ω5 (AMF marker)

18.2 ± 3.8a

27.2 ± 2.6b

28.1 ± 6.7b

30.2 ± 4.5bc

31.1 ± 1.8bc

26.4 ± 1.8b

32.6 ± 6.4bc

35.3 ± 4.1 cd

39.8 ± 8.6d

61.2 ± 2.1e

  1. The data represent the mean and standard deviations of five replicates. Different letters within each group indicate significant differences (P  <  0.05, Tukey’s test)