Table 1 Hydrolytic activity of Chlamydomonas supernatant proteins on cellulosic substrates.

From: Cellulose degradation and assimilation by the unicellular phototrophic eukaryote Chlamydomonas reinhardtii

Genus

Species

Specific activity, U mg −1 crude enzyme

Reference

  

CMC

Avicel

Filter paper

 

Green algae

Chlamydomonas reinhardtii

0.036±0.001

0.0048±0.0008

0.0056±0.0008

 

Green algae

Chlorella kessleri

N.D.

N.D.

N.D.

 

Anaerobic fungus (mesophilic)

Neocallimastix frontalis EB188

7.76

0.13

0.07

36

Aerobic fungus (mesophilic)

Trichoderma reesei QM9414

7.86

0.37

0.34

37

Aerobic bacteria (thermophilic)

Thermomonospora fusca

3.14

—

0.23

38

Aerobic bacteria (mesophilic)

Bacillus subtilis DLG

6.45

N.D.

0.05

39

Anaerobic bacteria (thermophilic)

Clostridium thermocellum LQRI

4.63

0.09

0.05

37

  1. CMC, carboxymethyl cellulose; N.D., not detectable.
  2. Specific activities are given in U (μmol reducing sugars × min−1) per mg of total supernatant protein. Activities were determined for CMC, Avicel and filter paper as cellulosic substrates; ±s.d. were calculated from three different biological replicates, each including three technical replicates. For comparison, specific activities from other organisms are given as well36,37,38,39.
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