Table 1 Organism that produces hydrogen

Anabaena cylindrica B-629

Marine cyanobacteria

0.103 μmol/mg dry wt/h

Air contained 5% CO₂; 7000 lx

at the surface of culture vessels

Argon environment with 3% CO₂ 4000 lx

at the surface of the culture vessel

9

Oscillatoria brevis B-1567

Marine cyanobacteria

0.168 μmol/mg dry wt/h

Air contained 5% CO₂; 7000 lx at

the surface of culture vessels

Argon environment with 3% CO₂ 4000 lx at

the surface of the culture vessel

9

Calothrix scopulorum 1410/5

Marine cyanobacteria

0.128 μmol/mg dry wt/h

Air contained 5% CO₂; 7000 lx at

the surface of culture vessels

Argon environment with 3% CO₂ 4000 lx at

the surface of the culture vessel

9

Calothrix membrnacea B-379

Marine cyanobacteria

0.108 μmol/mg dry wt/h

Air contained 5% CO₂; 7000 lx at

the surface of culture vessels

Argon environment with 3% CO₂ 4000 lx at

the surface of the culture vessel

9

Oscillatoria sp. Miami BG7

Marine cyanobacteria

0.250 μmol/mg dry wt/h

Air; 100 μE/m²/s; NH₄Cl

(25 mg/l) used as combined nitrogen source

Ar (100%); 90 μE/m² 11

day old cells 37°C

10

Oscillatoria limosa

Marine cyanobacteria

0.83 μmol/mg chl a/h

Air; incubation in 16 h light,

8 h darkness cycles

Same as culture condition

11

Cyanothece 7822

Marine unicellular cyanobacteria

0.92 μmol/mg chl a/h

N₂ with 5% CO₂

Same as culture condition

12

Anabaena sp. PCC 7120

Heterocystous cyanobacteria

2.6 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena cylindrica IAMM-1

Heterocystous cyanobacteria

2.1 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena variabilis IAMM-58

Heterocystous cyanobacteria

4.2 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena cylindrica UTEX B 629

Heterocystous cyanobacteria

0.91 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena flos-aquae UTEX 1444

Heterocystous cyanobacteria

1.7 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena flos-aquae UTEX LB 2558

Heterocystous cyanobacteria

3.2 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaenopsis circularis IAM M-13

Heterocystous cyanobacteria

0.31 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Nostoc muscorum IAM M-14

Heterocystous cyanobacteria

0.60 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Nostoc linckia IAM M-30

Heterocystous cyanobacteria

0.17 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Nostoc commune IAM M-13

Heterocystous cyanobacteria

0.25 μmol/mg chl a/h

Air; 20 μE/m²/s

Air; 60 μE/m²/s

13

Anabaena variabilis AVM13

Heterocyst filamentous

68 μmol/mg chl a/h

Air and 1% CO₂;

100 μE/m²/s

14

Anabaena variabilis PK84

Heterocyst filamentous

32.3 μmol/mg chl a/h

Air and 2% CO₂; continuous tarbidostat

mode; 113 μE/m²/s

Argon environment.

15

Anabaena variabilis PK84

Heterocyst filamentous

167.6 μmol/mg chl a/h

73%Ar, 25%N₂, 2% CO₂;

90 μE/m²/s

93%Ar, 5%N₂, 2% CO₂;

90 μE/m²/s

16

Anabaena variabilis PK84

Heterocyst filamentous

0.11 μmol/mg chl a/h

Air and 2% CO₂;

outdoor condition

Air and 2% CO₂;

outdoor condition; 400 W/m²

17

Anabaena variabilis ATCC 29413

Heterocyst filamentous

45.16 μmol/mg chl a/h

73%Ar, 25%N₂, 2% CO₂;

90 μE/m²/s

93%Ar, 5%N₂, 2% CO₂;

90 μE/m²/s

16

Anabaena variabilis ATCC 29413

Heterocyst filamentous

0.05 μmol/mg dry wt/h

5000 lx at the surface

of culture vessels.

Ar and 5% CO₂;

5000 lx addition of Tween 85 (77 mM)

18

Anabaena variabilis ATCC 29413

Heterocyst filamentous

39.4 μmol/mg chl a/h

Air and 2% CO₂; continuous

tarbidostat mode; 113 μE/m²/s

Argon environment

15

Anabaena variabilis 1403/4B

Heterocyst filamentous

20 μmol/mg chl a/h

Air; 15 μE/m²/s

No gas phase; cells immobilized in hollow fiber;

25 μE/m²/s on the top surface

and 13 μE/m²/s on bottom surface of reactor

19

Anabaena azollae

Heterocyst filamentous

38.5 μmol/mg chl a/h

Air and 1% CO₂;

100 μE/m²/s

Argon environment.

16

Anabaena variabilis PK17R

Heterocyst filamentous

59.18 μmol/mg chl a/h

73%Ar, 25%N₂, 2% CO₂;

90 μE/m²/s

93%Ar, 5%N₂, 2% CO₂;

90 μE/m²/s

16

Anabaena variabilis SPU 003

Heterocyst filamentous cyanobacteria

5.58 nmol/mg dry wt/h

Air; incubation in 16 h light

(3000 lx light intensity),

8 h darkness cycles;

mannose used as carbon source.

Same as culture condition

20

Synechococcus PCC 6830

Non-nitrogen-fixing unicellular cyanobacteria

0.26 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with CO (13.4 μmol),

C₂H₂

(1.34 μmol); darkness.

21

Synechococcus PCC 602

Non-nitrogen-fixing unicellular

cyanobacteria

0.66 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with CO (13.4 μmol);

photon fluence rate was

20–30 μE/m²/s

21

Synechococcus PCC 6307

Non-nitrogen-fixing

unicellular cyanobacteria

0.02 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar (100%) with photon fluence

rate 20–30 μE/m²/s

21

Synechoccus PCC 6301

Non-nitrogen-fixing

unicellular cyanobacteria

0.09 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with C₂H₂ (1.34 μmol);

fluence rate was 20–30 μE/m²/s

21

Microcystis PCC 7820

non-nitrogen-fixing

unicellular cyanobacteria

0.16 μmol/mg chl a/h

Air; photon fluence rate 20

μE/m²/s

Ar with CO (13.4 μmol),

C₂H₂ (1.34 μmol);

photon fluence rate was 20–30 μE/m²/s

20

Gloebacter PCC 7421

Non-nitrogen-fixing

unicellular cyanobacteria

1.38 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with CO (13.4 μmol),

C₂H₂ (1.34 μmol);

photon fluence rate was 20–30 μE/m²/s

20

Synechocystis PCC 6308

Non-nitrogen-fixing

unicellular cyanobacteria

0.13 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with CO (13.4 μmol),

C₂H₂ (1.34 μmol);

photon fluence rate was 20–30 μE/m²/s

21

Synechocystis PCC 6714

Non-nitrogen-fixing

unicellular cyanobacteria

0.07 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar with CO (13.4 μmol);

photon fluence rate was 20–30

μE/m²/s

21

Aphanocapsa montana

Non-nitrogen-fixing

unicellular cyanobacteria

0.40 μmol/mg chl a/h

Air; photon fluence rate

20 μE/m²/s

Ar (100%); photon fluence rate was

20–30 μE/m²/s

21

Gloeocapsa alpicola CALU 743

Unicellular non-diazotrophic

cyanobacteria

0.58 μmol/mg protein

Sulphur free 4% CO₂;

25 μmol photons/m²/s

Same as culture condition

4

Chroococcidiopsis thermalis CALU 758

Unicellular non-nitrogen-fixing

0.7 μmol/mg chl a/h

Ar and1% CO₂;

during 20 h.

Same as culture condition

22

Mycrocystis PCC 7806

Unicellular/colony

embedded in matrix

11.3 nmol/mg prot/h

Air; incubation in 16 h light,

8 h darkness cycles

Same as culture condition

23

Microcoleus chthonoplasts

Mat-building cyanobacteria

1.7 nmol/mg prot/h

Air; ferric ammonium citrate added

(46 μmol) 30 μE/m²/s

Same as culture condition

20