Table 3 PFLA biomarkers used to identify specific groups of sediment microorganisms at Zhanjiang, China.

From: Mangrove succession enriches the sediment microbial community in South China

Group or ratio

Biomarkers

General bacteria

i14:0, 14:0, 15:0, i15:0, a15:0, 16:0, i16:0, 16:1w7c, 16:1w9c, 16:12OH, 17:0, i17:0, a17:0, cy17:0, 18:0, 18:1w7c, cy19:0, 10Me16:0, 10Me17:0, cy19:0w8c, 19:0, i19:0

Gram-positive bacteria

i13:0, i14:0, i15:0, a15:0, i16:0, i17:0, a17:0, i18:0, 10Me16:0

Gram-negative bacteria

15:0 3OH, 15:1w6c, 16:12OH, 16:1w5 7 9c, 17:1w8c, 18:1w7 9c, cy17:0

Fungi

18:2w6 9c, 20:1w9c, 18:1w9c, 16:1w5c

Actinomycetes

10Me 16:0, 10Me 17:0, TBSA 10Me18:0

Gram-positive : Gram-negative

(i13:0, i14:0, i15:0, a15:0, i16:0, i17:0, a17:0, i18:0, 10Me16:0)/(15:0 3OH, 15:1w6c, 16:12OH, 16:1w5 7 9c, 17:1w8c, 18:1w7 9c, cy17:0)

Fungi : Bacteria

(18:2w6 9c, 20:1w9c, 18:1w9c, 16:1w5c)/(i14:0, 14:0, 15:0, i15:0, a15:0, 16:0, i16:0, 16:1w7c, 16:1w9c, 16:12OH, 17:0, i17:0, a17:0, cy17:0, 18:0, 18:1w7c, cy19:0, 10Me16:0, 10Me17:0, cy19:0w8c, 19:0, i19:0)

  1. The prefixes a, i, and cy refer to anteiso, iso, and cyclopropyl branching, respectively; br indicates that the type of branching is unknown, while a number followed by Me indicates the position of the methyl group. Numbers preceded by w indicate the position of OH groups from the aliphatic end of the fatty acids35,41,42,43,44,45,46.
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