. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 428 FUNGOUS DISEASES OF PLANTS frequently appear spindling from the beginning. Nevertheless, the affected shoots or canes may not be killed, and the disease may reappear upon such affected plants the following year from the growth of the mycelium into young shoots. In the end, practically all affected plants are killed, and their vitality is from the outset so diminished that productiveness is Fig. 208. Blackberry Rust, C^eo-ma Stage To the left, normal shoots; to the
. Fungous diseases of plants : with chapters on physiology, culture methods and technique . Fungi in agriculture. 428 FUNGOUS DISEASES OF PLANTS frequently appear spindling from the beginning. Nevertheless, the affected shoots or canes may not be killed, and the disease may reappear upon such affected plants the following year from the growth of the mycelium into young shoots. In the end, practically all affected plants are killed, and their vitality is from the outset so diminished that productiveness is Fig. 208. Blackberry Rust, C^eo-ma Stage To the left, normal shoots; to the right, diseased The fungus. The mycelium of this fungus has been carefully studied in the growing canes. It is intercellular, and grows rap- idly in the direction of formative tissues, or where new cells are being produced, extending but slightly into tissues or organs which have matured. The mycelium is richly provided with haustoria. The tip of the haustorium enlarges as a knob-like organ, and this is commonly more or less in contact with the cell nucleus. The mycelium in the root penetrates the parenchymatic cortical cells,. 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 Duggar, Benjamin M. (Benjamin Minge), 1872-1956. Boston ; New York : Ginn
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