| Autor: |
X.-L. Wang, Y.-A. Lee, Steven E. Lindow, B. Teviotdale, Milton N. Schroth, M. Hendson, Richard Buchner, B. Olson |
| Rok vydání: |
1993 |
| Předmět: |
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| Zdroj: |
Phytopathology. 83:1460 |
| ISSN: |
0031-949X |
| DOI: |
10.1094/phyto-83-1460 |
| Popis: |
The addition of iron to fixed copper compounds enhanced the toxicity of these materials to the walnut blight bacterium Xanthomonas campestris pv. juglandis by several mechanisms. Iron altered the physiology of the bacterium, causing it to be more sensitive to cupric ions. In the presence of iron, less free copper ions were needed to inhibit the growth of bacteria. The addition of soluble iron salts to fixed copper compounds also reduced pH and increased the amount of free copper ions; addition of iron caused the release of more free copper ions in suspensions of Kocide 101 (77% Cu(OH) 2 ) than did hydrochloric acid at the same pH. The spraying of walnut leaves with Kocide 101 amended with iron salts significantly increased the availability of free copper ions on leaf surfaces compared to the bactericide alone [...] |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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