. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 31 In 1894 Boyer and Lambert ^^ produced successful inoculations on mulberries with an organism to which they gave the above name, but without description. In 1908 E. F. Smith,^' plated out, from blighted mulberry leaves collected in Georgia, a white species with which he made numerous infections on both stems and leaves of mul- berry. From these cultures Smith supplied the description quoted in part above. The re- 1 a t i o n which Bacillus cuboni- anus '"^ has to this mulberry r^;!o i
. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 31 In 1894 Boyer and Lambert ^^ produced successful inoculations on mulberries with an organism to which they gave the above name, but without description. In 1908 E. F. Smith,^' plated out, from blighted mulberry leaves collected in Georgia, a white species with which he made numerous infections on both stems and leaves of mul- berry. From these cultures Smith supplied the description quoted in part above. The re- 1 a t i o n which Bacillus cuboni- anus '"^ has to this mulberry r^;!o io iin Fig- 17-—Ps. medicaginis; agar colonies 7 days old, deep Uisease ib uii- ^^^^ surface colonies by reflected light. After Sackett. known. Ps. phaseoli E. F. Sm. A short round-ended rod, wax-yeUow to chrome; motile; anaerobic. Milk coagulates, and the whey slowly separates wathout acidity; gelatine liquefies slowly. Growth feeble at 37°, none at 40°. T. D. P. 10 min., °. A starch enzyme is produced and the middle lamella also dissolved. This organism is pathogenic to beans and some related legumes and is closely related to Ps. hyacinthi and Ps. campestris. The bean Fig. 18.—Ps. phaseoli. disease, occasioned by it was noted and as- After Snaith. ^^.^^^ ^^ bacteria by Beach '"' and by Hal- sted ^° in 1892, and the organism was described by E. F. Smith in 1897 " after it had been grown in pure culture and successful inoculations had been Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stevens, Frank Lincoln, 1871-1934. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
