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| DOI: | 10.1139/b87-320 |
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| Web URL(s): | http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-320
Last checked: 03/05/2015
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Siegel, M. R.;
Järlfors, U.;
Latch, G. C. M.;
Johnson, M. C. |
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| Author Affiliation: | Siegel and Järlfors: Plant Pathology Department, University of Kentucky, Lexington, Kentucky; Latch: Plant Diseases Division, Department of Scientific and Industrial Research, Palmerston North, New Zealand; Johnson: Department of Biological Sciences, Georgetown College, Georgetown, Kentucky |
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| Title: | Ultrastructure of Acremonium coenophialum, Acremonium lolii, and Epichloe typhina endophytes in host and nonhost Festuca and Lolium species of grasses |
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| Section: | Mycology and plant pathology
Other records with the "Mycology and plant pathology" Section
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| Source: | Canadian Journal of Botany. Vol. 65, No. 11, November 1987, p. 2357-2367. |
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| Publishing Information: | Vancouver, British Columbia: The National Research Council of Canada. |
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| # of Pages: | 11 |
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| Keywords: | TIC Keywords: Acremonium coenophialum; Acremonium loliae; Endophytes; Epichloe typhina; Festuca arundinacea; Hyphae; Leaf sheath; Lolium perenne
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| Abstract/Contents: | "Ultrastructural studies were made of Acremonium fungal endophytes of tall fescue and perennial ryegrass and two isolates of Epichloe typhina. Hyphae of these fungi were observed in leaf sheaths of their natural host plant grown from infected seed and in artificially inoculated nonhost Festuca and Lolium species of grasses. Hyphae were also studied from fungal colonies grown on cellophane on potato dextrose agar. Crystalline inclusions were found in all endophyte-host combinations with the exceptions of E. typhina from perennial ryegrass in its own host and in a nonhost tall fescue, and Acremonium coenophialum in a nonhost perennial ryegrass. Tubular complexes were seen only in Acremonium lolii when growing in both host and in a non-host tall fescue. Three structures not seen before in endophytes (bundles of microtubules, 55 to 60 nm diameter "tubes," and bilayered cell walls) were found in E. typhina growing only in perennial ryegrass, its natural host. None of the distinguishing ultrastructural components described were found in hyphae grown in culture. Our observations suggest that endophytes express specific ultrastructural features only when they are grown in the grasses. However, it was not readily discernible what function the components serve and what role, if any, the natural versus the nonhost grass plays in the expression of endophyte ultrastructure." |
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| Language: | English |
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| References: | 31 |
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| Note: | Pictures, b/w
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Siegel, M. R., U. Järlfors, G. C. M. Latch, and M. C. Johnson. 1987. Ultrastructure of Acremonium coenophialum, Acremonium lolii, and Epichloe typhina endophytes in host and nonhost Festuca and Lolium species of grasses. Can. J. Bot. 65(11):p. 2357-2367. |
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| DOI: 10.1139/b87-320 |
| Web URL(s):
http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-320
Last checked: 03/05/2015
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2201022a |
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