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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/phyto77n12_1687.pdf#page=48
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hodges, C. F. |
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| Author Affiliation: | Dept. of Horticulture, Iowa State University, Ames, IA. |
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| Title: | Ethylene Response and Chlorophyll Loss in Sequentially Senecent Leaves of Poa pratensis Infected by Bipolaris sorokiniana |
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| Source: | Phytopathology. Vol. 77, No. 12, December 1987, p. 1734. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Poa pratensis; Ethylene; Chlorophyll; Bipolaris sorokiniana
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| Abstract/Contents: | "The upper epidermis of 4 sequentially older leaves of a P. pratensis shoot were incoulated with B. sorokiniana. Plants were grown under ambient (1000 mbar) and hyobaric (233 mbar, O2, CO2 supplemented) pressures. Each older leaf was analyzed for ethylene and Chlorophyll (Chl) at 24, 48, 72 and 96 hr after inoculation. Endogenous ethylene of incoulated leaves peaked at 48 h and then declined. Peak ethylene of the 2 youngest leaves was 2.35 - 3.75 u1 l-1 and the two oldest leaves about 2.5 u1 l-1. The younger leaves with greater ethylene under ambient pressure had less Chl loss (25-30%) than older leaves (35-40%) with a smaller increase in ethylene. Hypobaric pressure reduced Chl loss in younger (8-10%) and older (19-20%) infected leaves. The results suggest that older tissues are more sensitive to ethylene and that tissue age may be a factor in the dual role of ethylene as an inducer of resistance and as a contributor to symptom expression." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hodges, C. F. 1987. Ethylene Response and Chlorophyll Loss in Sequentially Senecent Leaves of Poa pratensis Infected by Bipolaris sorokiniana. Phytopathology. 77(12):p. 1734. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/phyto77n12_1687.pdf#page=48
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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