666 



INDEX 



Bacillus phj-tophthorus Appel, raw 

 potato, growth on, 264, 267 



ready means of identification, 267 



related organisms, 265, 268 



technical description, 257, 260, 263 



type of disease, 253 



virulence of, long continued, 34, 35, 

 258, 263, 275 

 Bacillus solanisaprus Harrison, 265, 268 

 Bacillus spongiosus Aderh. and Ruhl., 



474 

 Bacillus tracheiphilus EFS. (See also 

 Cucurbit wilt), 132 



anaerobic (facultative), 135 



cause of cucurbit-wilt. 132 



coccus follower of, 138 



colony, internal markings of, 136 i 



colony, surface appearance of, 138 i 



cultural characters, 135 



dwarfing of plants infected with, 49 



figures illustrating, 136, 138, 140, 

 143, 144 



flagella of, 136 



geographical distribution, 132 



host plants, 137 



insect carriers of, 30, 134, 135, 144 



isolation of, 135 



literature, 145 



sensitiveness to acids, 135 



sensitiveness to drying, 36, 135, 147 



sensitiveness to sunlight, 36, 135 



staining of, 117 



technic of inoculation, 137 



type of disease, 132 



viscidity, 136 

 Bacteria in plants 



action on middle lamella of cell- 

 walls, 46 



animals inoculations with, 36, 459 



cultural characters of, 35, 36 



gas production of, positive, 36, 230, 

 257 



gas production of, negative, 135, 

 147, 161, 182, 205, 306, 347, 369, 

 396, 421 



intracellular, 46 



many diseases due to, 1, 4 



morphology of, 35 



most, extra-cellular, 46, 



pigments of, 35 



Bacteria, production of toxins by, 46 

 small size of, 75 

 staining of, from cultures, 118 

 staining of in tissues, 116 

 Bacterial black rot of potato, 253 

 Bacterial canker of tomato. (See 

 Aplanobacter michiganense), 

 202 

 a phloem disease, 202, 209 

 figures illustrating, 203, 204, 205, 



206, 210, 211, 212 

 histology, figures illustrating, 



207, 208, 209, 213, 214, 215 

 Bacterial cell, why able to do so much 



work, 515 

 Bacterial diseases of plants 



changes of susceptibility to, 9 

 cryptogams, occurrence in, 4 

 discovery of, 1 



distortion of host plant as a re- 

 sult of, 49 

 distribution of, among flowering 



plants, 4 

 dwarfing of host as a result of, 49 

 early workers on, 1 

 fungous diseases following, 34 

 geographic distribution of, 51 



mmature tissues and, 8 



Australia, 52 

 in China, 53 

 in Denmark, 62 

 in Dutch East Indies, 52 

 in France, 66 

 in Germany, 64 

 in Great Britain, 



n Holland, 62 



n India, 54 

 in Italy, 66 



n Japan, 53 



n New Zealand, 



n the Philippines, 54 



in Portugal, 66 



:n Russia, 66 



n Sandwich Islands, 64 



n South Africa, 54, 55 



in South America, 54 



n Spain, 66 



n Tasmania, 55j 



n United States and Canada, 54 



n West Indies, 52 



64 



55 



