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Table 1 Thickness and cell density of cellulolytic biofilms cultivated with various types of feedstock and microorganisms

From: Spatial and temporal dynamics of cellulose degradation and biofilm formation by Caldicellulosiruptor obsidiansis and Clostridium thermocellum

No.

Substrate

Culture

Thickness

ρ a (cells cm -2 )

d (μm)

Microscope

ρ v (cells cm -3 )

Reference

1

Alfalfa leave

Mixed rumen bacteria

Monolayer

2.12 × 108

0.77

TEM

2.74 × 1012

(Cheng et al. 1984)

2

Forage

Fibrobacter succinogenes

Monolayer

9.68 × 107

1.15

SEM

8.43 × 1011

(Weimer et al. 1993)

3

Wheat straw

Fibrobacter succinogenes Butyrivibrio fibrisolvens

Monolayer

6.85 × 107

1.36

SEM

5.02 × 1011

(Miron et al. 2001)

4

Cellulose

Land fill mixed culture

Monolayer

2.02 × 107

2.51

Confocal

8.05 × 1010

(Burrell et al. 2004)

5

Wheat embryo

Agrobacterium tumefaciens

Monolayer

5.29 × 107

1.55

SEM

3.41 × 1011

(Mooney and Goodwin 1991)

6

Cellulose

Mixed leachate

Monolayer

2.53 × 107

2.25

SEM

1.13 × 1011

(Song et al. 2005)

7

Cellulose

C. obsidiansis

~ 10 μm

1.69 × 108

1.80

Confocal

1.69 × 1011

This study