Limited Heterotrophy of Some Photosynthetic Dinojlagellates 113 



2. Droop, M. R.: Water-soluble factors in the nutrition of Oxyrrhls marina. 



J. Mar. Biol. Assoc. U. K., .3<S: 605-620, 1959. 



3. Ford, J. E.: The microbiological assay of "vitamin Bu." The specificity 



of the requii'ement of Ochromomis malhamensis for cyanocobalamin. 

 Brit. J. Nutrition, 1:299-306, 1953. 



4. Fries, L.: Goniotrichum eJegans: a marine red alga requiring vitamin 



B,.. Nature, 183:558-59, 1959. 



5. Fries, L.: The influence of different B12 analogues on the growth of 



Goniotrichum clcgans (Chauv.). Physiol. Plantarum, 13:264-275, 

 1960. 



6. IwASAKi, H.: The life-cycle of Porpliyra tencra in vitro. Biol. Bull., 121: 



173-187, 1961. 



7. Johnston, R.: Sea water, the natural medium for phytoplankton. Part 



1. General aspects. Part II. Trace metals and chelation. /. Mar. Biol. 

 Assoc. U. K. in press, 1962. 



8. McLachlan, J.: The culture of Dunaliella tertiolccta Butcher— a euryha- 



line organism. Can. J. Microbiol, 6:367-79, 1960. 



9. McLaughlin, J. J. A. and Provasoli, L.: Nutritional requirements and 



toxicity of two marine Amphidinium. J. Protozoal., Suppl., 4:7, 

 1957.' 



10. Provasoli, L., and Howell, J. F.: Culture of a marine Gyroditiium in 



synthetic medium. Proc. Soc. Protozoal. 1:6, 1952. 



11. Provasoli, L., and McLaitghlin, J. J. A.: Auxotrophy in some marine 



and brackish dinoflagellates. /. Protozoal., Suppl. 2:10, 1955. 



12. Provasoli, L.: Growth factors in unicellular marine algae, in A. Buz- 



zati-Traverso, ed., Perspectives in Marine Bialap,y. Univ. Calif. 

 Press, 1958, p. 385-403. 



13. Provasoli, L., and Pintner, I. J.: Ecological implications of in vitro 



nutritional requirements of algal flagellates. Ann. New York Acad. 

 Sci., 56:839-51, 1953. 



14. Provasoli, L., McLaughlin, J. J. A. and Pintner, I. J.: Relative and 



hmiting concentrations of major mineral constituents for the growth 

 of algal flagellates. Trans. New York Acad. Sci. Ser. II., 16:412-417, 

 1954. 



15. Provasoli, L., McLaughlin, J. J. A. and Droop, M. R.: The develop- 



ment of artificial media for marine algae. Arch f. Microbiol, 25:392- 

 428, 1957. 



16. Provasoli, L.: Nutrition and ecology of Protozoa and Algae. Ann. Rev. 



Microbiol, 12:279-308, 1958. 



17. Sweeney, B. M.: Culture of dinoflagellate Gymnodinium with soil ex- 



tract. Amer. Jour. Bat., 38:669-677, 1951. 



18. Thomas, W. H.: The culture of tropical oceanic phytoplankton. Pre- 



prints, Intemat. Oceanogr. Congr. Amer. Ass. Adv. Sci., pp. 207- 

 208, 1959. 



19. Van Baalen, C. : \^itamin Bi: requirement of a marine blue-green algae. 



Science, 133:1922-3, 1961. 



