Micro-organisms of Maple Sap 331 



12. Fluorescence 546 



13. Diastasic action on potato starch 548 



14. Group numbers 548 



15. Separation of the 42 strains into groups 548 



Chart showing the separation of the 42 strains into 



groups -. 550 



Comparative studies of seven representative strains of green 



fluorescent sap bacteria and six known species 552 



Detailed features ."..">:; 



Morphology 553 



1 . Vegetative cells 553 



Table 59. Limits of size on hanging block 553 



Table GO. Limits of size on hanging drops 553 



Table 61. Limits of size on stained preparations 554 



2. Endospores 554 



3. Flagella 554 



4. Capsules 555 



5. Zoogloea ;,:,i; 



6. Involution forms 556 



7. Staining reactions 556 



Cultural features 557 



1 . Agar stroke 557 



2. Potato slants \ 558 



3. Loeffler's blood serum 558 



4. Agar stab 558 



"». Gelatin stab at 20° C 559 



6. Nutrient broth 563 



7. Milk 564 



Table 62. Acid production in milk 564 



8. Litmus milk ;,i;i; 



9. Gelatin colonies 567 



10. Agar colonies 568 



1 1. Cohn's nutrient solution r>70 



1 2. Uschinsky solution ,",71 



Table 63. Uschinsky solution 572 



Table 64. Modified Uschinsky solution 7.73 



13. Nitrogen -.74 



Table 65. Nitrogen requirements :,74 



Table 66. Nitrogen requirements 7,7;, 



Physical and biochemical features 7,71; 



1 . Sugar free medium 7,7c 



