Medium This medium is made up in 2 parts:
PART 1
per litre Tricine 0.50 g Soil extract (SE1 - see recipe) 25.00 ml Extra nutrient salts (1) 3.75 ml
Make up to 1 litre with filtered natural seawater and adjust pH to 7.6 - 7.8 with 1M NaOH or HCl.
PART 2
per litre NaNO3 1.500 g K2HPO4.3H2O 0.040 g MgSO4.7H2O 0.075 g CaCl2.2H2O 0.036 g Citric acid 0.006 g Ammonium ferric citrate green 0.006 g EDTANa2 0.001 g Na2CO3 0.020 g Trace metal solution (2) 1.00 ml
Make up to 1 litre with distilled water and adjust pH to 7.4. Final
Autoclave Parts 1 and 2 separately at 15 psi, allow to cool then mix aseptically. For agar plates, add 15 g non-nutrient agar per litre.
BG11 (Blue-Green Medium)
Freshwater algae and protozoa
Stocks per litre
(1) NaNO3 15.0 g
per 500 ml (2) K2HPO4 2.0 g (3) MgSO4.7H2O 3.75 g (4) CaCl2.2H2O 1.80 g (5) Citric acid 0.30 g
(6) Ammonium ferric citrate green
(枸橼酸铁铵, 柠檬酸铁铵) 0.30 g
(7) EDTANa2 0.05 g (8) Na2CO3 1.00 g
(9) Trace metal solution per liter H3BO3 2.86 g MnCl2.4H2O 1.81 g ZnSO4.7H2O 0.22 g Na2MoO4.2H2O 0.39 g CuSO4.5H2O 0.08 g Co(NO3)2.6H2O 0.05 g Medium Stock solution 1 100.0 ml Stock solutions 2 - 8 10.0 ml each Stock solution 9 1.0 ml Make up to 1 litre with deionized water. Adjust pH to 7.1 with 1M NaOH or HCl. For agar add 15.0 g per litre of *Bacteriological Agar (Oxoid L11). Autoclave at 15 psi for 15 minutes. Supply * Unipath Ltd, Wade Road, Basingstoke, Hants RG24 0PW, UK Ref Stanier et al, (1971) CH (Chalkley's Medium) Freshwater protozoa Stocks per 100 ml (1) NaCl 2.0 g (2) KCl 0.08 g (3) CaCl2 0.12 g Medium Stock solutions 1 - 3 5.0 ml each Make up to 1 litre with deionized water. Autoclave at 15 psi for 15 minutes. CHM (Chilomonas Medium) Freshwater protozoa Medium per litre Sodium acetate trihydrate 1.0 g *\"Lab-Lemco\" powder (Oxoid L29) 1.0 g Add the above constituents to 1 litre of deionized water. Autoclave at 15 psi for 15 minutes. Supply * Unipath Ltd, Wade Road, Basingstoke, Hants RG24 0PW, UK CMA (Corn Meal Glucose Agar) Freshwater protozoa Medium per litre *Corn meal agar (Oxoid CM103) 17.0 g D-glucose 2.0 g *Yeast extract (Oxoid L21) 1.0 g Disperse the agar in cold deionized water. Apply heat, stirring constantly. During heating add glucose and yeast extract. Bring contents to boil. Transfer molten agar to suitable vessels. Sterilize by pressure cooking at 10 psi for 15 minutes. Supply * Unipath Ltd, Wade Road, Basingstoke, Hants RG24 0PW, UK DM (Diatom Medium) Freshwater algae Stocks per 200 ml (1) Ca(NO3)2.4H2O 4.00 g (2) KH2PO4 2.48 g (3) MgSO4.7H2O 5.00 g (4) NaHCO3 3.18 g (5) EDTAFeNa 0.45 g EDTANa2 0.45 g (6) H3BO3 0.496 g MnCl2.4H2O 0.278 g (NH4)6Mo7O24.4H2O 0.20 g (7) Cyanocobalamin 0.008 g Thiamine HCl 0.008 g Biotin 0.008 g *(8) NaSiO3.9H20 (Sigma S4392) 11.4 g Medium Stock solutions 1 - 8 1.0 ml each Make up to 1 litre with deionized water. Adjust to pH 6.9 with 1M HCl. Dispense to suitable vessels and autoclave at 15 psi for 15 minutes. Supply * Sigma Chemical Co, Fancy Road, Poole, Dorset BH17 7TG, UK Ref Beakes, Canter & Jaworski (l988) EG (Euglena Gracilis Medium) Freshwater algae and protozoa Stock (1) CaCl2 stock solution: per litre CaCl2 1.0 g Medium per litre Sodium acetate trihydrate 1.0 g *\"Lab-Lemco\" powder (Oxoid L29) 1.0 g *Tryptone (Oxoid L42) 2.0 g *Yeast extract (Oxoid L21) 2.0 g CaCl2 stock solution (1) 10.0 ml Add constituents above and make up to 1 litre with deionized water. For agar add 15 g per litre *Bacteriological Agar (Oxoid L11). Autoclave at 15 psi for 15 minutes. Supply * Unipath Ltd, Wade Road, Basingstoke, Hants RG24 0PW, UK EG:JM Medium 1:1 mixture See separate recipes (EG and JM). Mix then autoclave at 15psi for 15 minutes. E27 (E27 Medium) Marine algae, including sterility testing Medium This medium is made up in 2 parts to avoid precipitation: PART 1 per litre Soil extract (SE1 - see recipe) 25.0 ml KNO3 0.050 g K2HPO4 0.005 g MgSO4.7H20 0.005 g Glucose 0.250 g *Tryptone (Oxoid L42) 0.025 g *Liver digest (Oxoid L27) 0.025 g Cyanocobalamin 100.00 ng Thiamine HCl 50.00 µg Make up to 500 ml with distilled water. PART 2 Filtered natural seawater 500.0 ml Final Autoclave parts 1 and 2 separately at 15 psi, allow to cool then mix aseptically. Supply * Unipath Ltd, Wade Road, Basingstoke, Hants RG24 0PW, UK E31 (E31 Medium)
Marine algae
Medium This medium is made up in 2 parts to avoid precipitation:
PART 1
per litre Soil extract (SE1 - see recipe) 50.0 ml KNO3 0.10 g K2HPO4 0.01 g MgSO4.7H20 0.01 g Cyanocobalamin 100.00 ng Thiamine HCl 50.00 µg Biotin 100.0 ng
Make up to 500 ml with distilled water.
PART 2
Filtered natural seawater 500.0 ml
Final Autoclave Parts 1 and 2 separately at 15 psi, allow to cool then mix aseptically.
E31:ANT
Medium 1:1 mixture
See separate recipes (E31 and ANT). Autoclave separately. Mix aseptically when cool.
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