Research Article

Acetotrophic Activity Facilitates Methanogenesis from LCFA at Low Temperatures: Screening from Mesophilic Inocula

Table 3

Alpha diversity metrics (diversity within samples)—Chao 1 indices, Shannon indices, and number of observed OTUs for all the OTUs achieving 99.9% cut-off in the overall relative abundance. Detailed information on the sample names is shown in Table S1.

Chao1Shannonobserved_otus

VD inoculum108 (1)4.73 (0.05)105 (0.5)
VDBlank10106 (4)4.38 (0.1)104 (1.2)
VDAcetate10108 (3)4.62 (0.07)106 (1.4)
VDSDW10109 (3)4.31 (0.04)105 (1.2)
VDBlank20116 (12)5.13 (0.01)109 (2.1)
VDAcetate20115 (8)5.06 (0.05)109 (1.7)
VDSDW20115 (4)4.79 (0.33)109 (0.8)
RD inoculum104 (0)4.53 (0.14)103 (0.5)
RDBlank10108 (3)4.76 (0.1)105 (2.9)
RDAcetate10113 (0)4.49 (0.02)107 (0.5)
RDSDW10114 (9)4.61 (0.09)104 (2.4)
RDBlank20112 (1)4.46 (0.02)110 (0.1)
RDAcetate20113 (1)5.12 (0.04)111 (0.9)
RDSDW20111 (4)4.8 (0.2)109 (5)
GS inoculum93 (14)3.69 (0.01)79 (2.5)
GSBlank1082 (16)3.8 (0.13)70 (3.7)
GSAcetate1077 (3)3.86 (0.02)66 (2.2)
GSSDW1080 (11)3.78 (0.04)66 (1.7)
GSBlank2088 (4)4.02 (0.12)78 (2.9)
GSAcetate2087 (7)3.93 (0.06)85 (6)
GSSDW2077 (3)4.04 (0.18)76 (3.3)