TABLE 2

Short summary of the data on microbiota composition of H. illucens larvae from present work and published studiesa

Authors and yr (reference) or sourceSampleFeeding substrateMajor phyla%b
Jeon et al., 2011 (19)Larval gutFood wasteBacteroidetes67.4
Proteobacteria18.9
Firmicutes9.4
Fusobacteria2.0
Actinobacteria1.9
Cooked riceProteobacteria54.0
Firmicutes47.3
Unclassified3.5
Calf forageProteobacteria31.1
Actinobacteria24.6
Firmicutes23.5
Bacteroidetes20.5
Zheng et al., 2013 (20)Whole larvaeGainesville dietcBacteroidetes54.4
Firmicutes20.0
Proteobacteria16.0
Actinobacteria9.0
Present studyLarval midgutStandard dietBacteroidetes41.5 (A: 65.9, M: 54.4, P: 41.1)
Proteobacteria28.2 (A: 25.9, M: 33.7, P: 25.2)
Firmicutes13.6 (A: 4.7, M: 5.6, P: 30.4)
Actinobacteria3.9 (A: 3.2, M: 5.3, P: 3.1)
Veg mixBacteroidetes65.4 (A: 85.2, M: 61.2, P: 49.8)
Proteobacteria19.1 (A: 12.2, M: 28.9, P: 16.2)
Firmicutes15.7 (A: 2.0, M: 28.9, P: 16.2)
Actinobacteria11.6 (A: 0.1, M: 3.8, P: 30.8)
Fish dietProteobacteria55.5 (A: 37.1, M: 30.8, P: 98.6)
Firmicutes43.0 (A: 59.1, M: 68.6, P: 1.4)
  • a In all of the studies the microbiota composition was obtained by 16S rRNA gene sequencing. Estimated on the basis of the histogram presented in references 19 and 20.

  • b Only percentages of >1% are reported. For the present study, the % reported is the average of the percentages in the three different midgut portions (A, anterior; M, middle; P, posterior) that are specified in parenthesis.

  • c Gainesville diet is composed of 20% corn meal, 30% alfalfa meal, and 50% wheat bran, saturated with water.