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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO.1999.89.9.817
Last checked: 08/25/2010
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Zhang, Z.;
Yuen, G. Y. |
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| Author Affiliation: | Zhang: Graduate Research Assistant; and Yuen: Associate Professor, Department of Plant Pathology, University of Nebraska |
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| Title: | Biological control of Bipolaris sorokiniana on tall fescue by Stenotrophomonas maltophilia strain C3 |
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| Section: | Biological control
Other records with the "Biological control" Section
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| Source: | Phytopathology. Vol. 89, No. 9, September 1999, p. 817-822. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Biological control; Bipolaris sorokiniana; Festuca arundinacea; Leaf spot; Application rates; Xanthomonas; Chitinase; Disease severity; Disease control
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| Abstract/Contents: | "Stenotrophomonas maltophilia strain C3 was evaluated for control of leaf spot on tall fescue (Festuca arundinacea) caused by Bipolaris sorokiniana. In growth chamber experiments, C3 inhibited conidial germination on leaf surfaces and reduced lesion frequency and percent diseased leaf area compared with nontreated controls. The amount of leaf spot suppression was related to the C3 dose applied. The highest dose tested, 10ā¹ CFU/ml, prevented nearly all B. sorokiniana conidia from germinating on treated leaf surfaces and provided nearly complete suppression of lesion development. When colloidal chitin was added to C3 cell suspensions of 10ā· or 10āø CFU/ml, biocontrol efficacy was siginficantly increased over C3 applied alone, whereas addition of chitin to a C3 cell suspension of 10ā¹ CFU/ml had no effect. In field experiments, application of C3 to tall fescue turf resulted in significant reductions in infection frequency and disease severity compared with nontreated controls. Strain C3 applied at 10ā¹ CFU/ml was more effective than C3 applied at 10ā· CFU/ml and amendment of the lower dose with colloidal chitin enhanced its efficacy. Population sizes of C3 established on foliage in a growth chamber and in the field were directly related to dose applied. Chitin amendments did not affect C3 population size." |
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| Language: | English |
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| References: | 24 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Z., and G. Y. Yuen. 1999. Biological control of Bipolaris sorokiniana on tall fescue by Stenotrophomonas maltophilia strain C3. Phytopathology. 89(9):p. 817-822. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdfplus/10.1094/PHYTO.1999.89.9.817
Last checked: 08/25/2010
Requires: PDF Reader |
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MSU catalog number: SB 599 .P48 |
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