Journal of Agricultural Research . nearly empty. Haustoria at a, b, and c also partly drained. Nucleus in hau-storia distinct. X 1130. PLATE 3 Puccinia graminis tritici form III on Kanred (A-C) and Mindum (D) A.—Kanred. Seven-day infection. Group of runners of the fungus growingalong the inner surface of the epidermis through a substomatal chamber. X 730. B.—Kanred. Seven-day infection. Portion of young uredinium and mesophylltissue below it. Spore bearing layer a lifting epidermis b. Cell contents of centralmycelium drained into vu-edinium. X 333- C.—Kanred. Fifteen-day infection. Strip throu
Journal of Agricultural Research . nearly empty. Haustoria at a, b, and c also partly drained. Nucleus in hau-storia distinct. X 1130. PLATE 3 Puccinia graminis tritici form III on Kanred (A-C) and Mindum (D) A.—Kanred. Seven-day infection. Group of runners of the fungus growingalong the inner surface of the epidermis through a substomatal chamber. X 730. B.—Kanred. Seven-day infection. Portion of young uredinium and mesophylltissue below it. Spore bearing layer a lifting epidermis b. Cell contents of centralmycelium drained into vu-edinium. X 333- C.—Kanred. Fifteen-day infection. Strip through a longitudinal section of theleaf at the center of an old uredinium. Epidermis is gone and many spores practically empty. X 2,3,2,- D.—Mindum. Four-day infection. Young infection. Appressorium d and sub-stomatal vesicle below it, c, empty. First host cell attacked by the fungus/ deadand shriveled. Second attack begun at 9. Several cells plasmolyzed. X 333. Cytology of Wheat Stern Rust Plate 3 ?^X^y.
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