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| Web URL(s): | http://www.apsnet.org/publications/PlantDisease/BackIssues/Documents/1994Abstracts/PD_78_0926C.htm
Last checked: 10/13/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Wu, Wen-Shi;
Wang, Yuen-Ping |
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| Author Affiliation: | Department of Plant Pathology and Entomology, National Taiwan University, Taipei, Taiwan |
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| Title: | First report of the occurrence of Bipolaris maydis on bermudagrass |
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| Source: | Plant Disease. Vol. 78, No. 9, September 1994, p. 926. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Collation: | Disease Notes |
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| Related Web URL: | http://www.apsnet.org/publications/plantdisease/backissues/Documents/1994Abstracts/PD_78_0926C.htm
Last checked: 08/27/2010
Notes: Abstract only |
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| Keywords: | TIC Keywords: Cynodon dactylon; Bipolaris; Conidia; Digitaria; Eleusine indica; Paspalum dilatatum; Zoysia matrella; Echinochloa
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| Abstract/Contents: | "Bipolaris maydis (Nisikado & Miyake) Shoemaker was isolated from bermudagrass (Cynodon dactylon (L.) Pers.) in northern Tawain. The symptoms of the infected plants were reddish brown to dark brown necrotic lesions. When lesions enlarged, they became oblong and coalescent. Conidia produced from infected bermudagrass leaves were similar to those reported from B. maydis infecting maize (Zea mays L.), averaged 16.8 mu m wide by 142 mu m long, and were dark brown in color. Conidia used to inoculate bermudagrass were cultured on sterilized corn and bermudagrass leaves. Six hours after inoculation, spores germinated bipolarly, and penetrated and colonized the leaves both inter- and intracellulary. After 4 days at 25 C with diurnal light (12/12 hr) and high humidity (>90%), inoculated leaves developed dark striped lesions similar to those observed on naturally infected bermudagrass. Conidia collected and fungus isolated from infected leaves were identical to the original isolates from naturally infected bermudagrass leaves. Conidia collected from sterilized corn leaves, bermudagrass leaves, or corn leaf or bermudagrass leaf dextrose agar (20 g of corn or bermudagrass leaves, 20 g of dextrose, and 20 g of agar in 1 L of distilled water) caused significantly (P = 0.05) more lesions on bermudagrass than did the conidia collected from potato-dextrose agar. The same fungus caused water-soaked circular lesions on corn leaves after 24 hr of incubation and rapidly developed typical lesions of southern corn leaf blight. Moreover, the isolate from bermudagrass also infected Coix lacryma-jobi L., Digitaria radicosa (Presl.) Miq., Echinochloa crus-galli (L.) P. Beauv. var. formosensis Ohwi, E. crus-galli var. praticola Ohwi, Eleusine indica (L.) Gaertn., Paspalum dilatatum Poir., Sorghum bicolor (L.) Moench, and Zoysia matrella (L.) Merr." |
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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):
Wu, W.-S., and Y.-P. Wang. 1994. First report of the occurrence of Bipolaris maydis on bermudagrass. Plant Dis. 78(9):p. 926. |
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Last checked: 10/13/2015 |
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MSU catalog number: SB 599 .P95 |
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