REQUIREMENTS OF INSECTS 



32. F. W. Tanner, S. E. Pfeiflfer and J. M. van Lanen, ibid., 29. 



33. N. Nielsen and V. Hartelius, Compt. rend. Trav. Lab. Carlsberg, 



Ser. Physiol., 1945, 24, 117. 

 33a. R. W. Wagner and B. M. Guirard, Proc. Nat. Acad. Sci., 1948, 34, 

 398. 



34. P. R. Burkholder, Amer. J. Bot., 1943, 30, 206 ; P. R. Burkholder 



and D. Moyer, Bull. Torrey Bot. Club, 1943, 70, 372 ; /. Bact., 

 1944, 48, 385- 



35. A. S. Schultz and L. Atkin, Arch. Biochem., 1947, 14, 369. 



36. V. Hartelius and G. Johansen, Compt. rend. Trav. Lab. Carlsberg, 



Ser. Physiol., 1946, 24, 133. 

 36a. C. C. Lindegren and C. Rant, Ann. Missouri Bot. Gard., 1947, 

 34, 85. 



37. E. R. Becker and L. Smith, Iowa State Coll. J. Sci., 1942, 16, 443. 



38. V. H. Cheldelin and C. A. Schink, /. Amer. Chem. Soc, 1947. 69» 



2625. 



39. F. J. Ryan, R. Ballentine, E. Stolovy, M. E. Corson and L. K. 



Schneider, ibid., 1945, 67, 1857 ; F. J. Ryan, L. K. Schneider 

 and R. Ballentine, /. Bact., 1947, 53, 417. 



40. T. Wieland and E. F. Moller, Z. physiol. Chem., 1942. 272, 232. 



41. J. M. Ravel and W. Shive, /. Biol. Chem., 1946, 166, 407. 



42. W. Shive, W. W. Ackermann, J. M. Ravel and J. E. Sutherland, 



/. Amer. Chem. Soc, 1947, 69, 2567. 



43. T. E. King and V. H. Cheldelin, Arch. Biochem., 1948, 16, 231. 



44. T. E. King, R. L. Stearman and V. H. Cheldelin, /. Amer. Soc, 



1948, 70, 3969. 



15. EFFECT OF PANTOTHENIC ACID ON fflGHER PLANTS 



According to E. F. Pratt and R. J. Williams,^ pantothenic acid 

 concentrates influenced the metabolism of plant tissues. P. R. 

 Burkholder ^ reported that the amount of pantothenic acid, as well 

 as of other vitamins, increased during the germination of oats, wheat, 

 barley and maize. 



References to Section 15 



1. E. F. Pratt and R. J. WilHams, /. Gen. Physiol., 1939, 22, 637. 



2. P. R. Burkholder, Science, 1943, 97, 562. 



16. PANTOTHENIC ACID REQUIREMENTS OF INSECTS 



Pantothenic acid is an essential vitamin for the fruit fly, Drosophila 

 melanogaster ,'^ for the larvae of the mealworm, Tenebrio molitor,^ for 

 mosquito larvae,^ for the beetles, Tribolium confusum^ and Ptinus 

 tectus,^ and the moth, Ephestia elutella.^ Silvanus surinamensis, 



389 



