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Summary
DescriptionParasitism of pythium debaryanum hesse on the potato tuber 415.jpg |
English: PLATE
37 PHYSIOLOGICAL STUDY OF THE PARASITISM OF PYTHIUM DEBARYANUM HESSE ON THE POTATO TUBER by Lon A. Hawkins and Rodney B. Harvey, Journal of Agricultural Research voi. xviii, no. 5 Photographs enlarged from portions of a motion photomicrograph, showing the method of cell wall penetration by Pythium hyphae. A. — Shows the hypha growing against the potato cell wall. Sufficient pressure has already been applied to cause the hypha to bend. Notice that this bending increases in later photographs. B. — A little later stage than A. C. — The tip has broken through as a small tube D. — Penetration is complete. Notice the constriction of the hypha at the point where it penetrates the potato cell wall. |
Date | |
Source |
https://archive.org/stream/journalofagricul18unit/journalofagricul18unit Journal of agricultural research |
Author | Lon A. Hawkins, Rodney b. Harvey, United States. Dept. of Agriculture; Association of American Agricultural Colleges and Experiment Stations; Association of Land-Grant Colleges and Universities; Association of Land-Grant Colleges |
Licensing
Public domainPublic domainfalsefalse |
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Parasitism_of_pythium_debaryanum_hesse_on_the_potato_tuber_415.jpg |
Items portrayed in this file
depicts
Pythium debaryanum
potato
parasitism
copyright status
public domain
inception
1 December 1919Gregorian
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:25, 22 January 2018 | 431 × 639 (108 KB) | Awkwafaba | User created page with UploadWizard |
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Orientation | Normal |
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Software used | Microsoft Windows Photo Gallery 6.0.6001.18000 |
File change date and time | 08:59, 22 January 2018 |
Unique image ID | DFFF28C98539412A8944BCA3552B6E88 |
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