Root nodules 



192 



Root nodules : nitrogen compounds, influ- 

 ence on the development, II. 323. 



- nitrogen fixation experiments, V. 267 

 270, see also: Bacillus radicicola. 



- occurrence in relation to the fertility 

 of the soil, II. 163; V. 264, 265; VI. 22. 



- of the Leguminosae, I. 12; II. 155 

 187, 305, 312; III. 49-53; IV. 259, 

 265*; V. 264-271; VI. 20, 22, 58,61,70. 



- of the non leguminous plants, I. 12; 

 II. 158. 



- significance for Bacillus radicicola, II. 

 182. 



- significance for the hostplant, II. 

 181-182, 184, 185, 186, 324; V. 265- 

 270; VI. 70. 



- slime threads, II. 157, 160, 177, 186*, 

 187*; III. 49-52; IV. 265*; V. 268, 

 269. 



- urease in, VI. 20. 

 Root tissue, cultures, V. 79. 



Roots, adventitious: I. 90-124, 295, 386- 



387, 395-399; II. 3, 7-115*-121*, 129, 

 286, 287. 



- and adventitious buds, formation 

 caused by external factors, I. 90, 91, 94 

 121; II. 29. 



- and adventitious buds, formation 

 caused by internal factors, I. 95, 97, 

 108, 122; II. 8, 9. 



- as metamorphosed budprimordia, II. 

 16, 35, 38, 39, 115*. 



- exogenous, I. 109, 112, 114; II. 10, 

 18, 20, 21, 46, 47, 51, 60, 93, 98, 111. 



- in relation to adventitious buds, II. 13, 

 31-33, 60, 61. 



in relation to leaves and lateral buds, 

 II. 11, 12, 13, 21, 28, 29, 36, 37, 42, 45, 

 48, 51, 52, 55, 59, 60, 62, 66, 68, 70, 75, 

 106, 116*. 



- influence of sapflow, I. 90 111-117- 

 121-124; II. 9-10-12, 29, 31, 94, 95. 



- without relation to the vascular sy- 

 stem, II. 12, 90-95. 



Roots: anastomosis, II. 24. 



- bacterial nodules as metamorphosed 

 lateral, II. 156, 158; IV. 259. 



-T fusion, II. 13, 27. 



- gall , formation from galls, I. 386- 



388, 389, 395, 396-399; II. 128-131; 

 V. 256. 



- leafy, II. 8, 19. 



- metamorphosis, II. 16, 93, 94. 



- phylogenetic origin, II. Ill, 112, 113, 

 114. 



Ropy whey, see: Whey, ropy. 



Rose, I. 130, 135, 138, 139, 250-265, 268; 

 II. 134, 286; III. 203. 



Rosine: see Raisin. 



Rotator ia, V. 121 . 



Rouge, le (becoming red of peach bran- 

 ches), I. 337. 



Rozespons: see Bedeguar, I. 22, 28. 



Rozijn: see Raisin. 



Riibe : see Rape. 



Rust, I. 89; V. 76; VI. 17. 



Rye (Rogge, Roggen, Seigle), I. 18, 285, 

 311, 364, 365; II. 179; III. 64, 65, 69, 

 129, 137, 139, 151, 152, 175; V. 52, 

 195, 275. 



Rye eel (Roggeaaltje), I. 288. 



Rye grass (Roggegras), I. 364. 



Saccharodextranase (Dextranase), an en- 



doenzyme, V. 255. 

 Saccharolaevulanase, V. 96, 255, see also: 



Viscosaccharase. 

 Saccharomyces: see also: Yeast. 



- classification of the genus, III. 11, 

 12, 182, 183, 280, 292*, 345. 



- mutation and variation, III. 174- 

 180-182, 264, 284, 289, 290, 292; IV. 

 40; V. 71, 72, 240-242, 260, 261. 



Saccharomyces apiculatus: isolation and 

 occurrence, V. 260. 



- spore formation, III. 56. 

 Saccharomyces curvatus: autoagglutina- 



tion, IV. 313-315. 



- isolation from pressed yeast, IV. 314. 



- raising power, IV. 314. 

 Saccharomyces fragrans : description and 



occurrence, III. 132, 133; IV. 58, 64, 

 315. 



- temperature relation, IV. 64. 

 Saccharomyces kephir: description, II. 



212-214. 



- non essential for the formation of 

 kephir grains, IV. 57. 



Saccharomyces minor: occurrence, III. 



287. 

 Saccharomyces muciparus : description, 



occurrence, autoagglutination, IV. 315, 



316, 322. 

 Saccharomyces mycoderma: fermentabi- 



lity of sugars, III. 11-16-17, 133, 147, 



149; V. 234, 260. 



- influence of glucosides, III. 328; IV. 

 23. 



