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| Web URL(s): | http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=109
Last checked: 09/06/2016
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Kaur, Jatinder;
Ekanayake, Piyumi N.;
Rabinovich, Maia;
Ludlow, Emma J.;
Tian, Pei;
Rochfort, Simone;
Guthridge, Kathryn M.;
Forster, John W.;
Spangenberg, German C. |
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| Author Affiliation: | Biosciences Research Division, Department of Primary Industries; Ekanayake, Rabinovich, Tian, Rochfort, and Forster: La Trobe University, Bundoora, Victoria; Kaur, Ekanayake, Ludlow, Tian, Rochfort, Guthridge, Forster, and Spangenberg: Dairy Futures Co-operative Research Centre, Australia |
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| Title: | Analysis of compatibility and stability in designer endophyte-grass associations between perennial ryegrass and Neotyphodium species |
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| Section: | Poster abstracts
Other records with the "Poster abstracts" Section
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| Meeting Info.: | Salt Lake City, Utah: June 4-7, 2012 |
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| Source: | Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. 2012, p. 109. |
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| Publishing Information: | s.l.: s.n. |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Biological control organisms; Endophytes; Festuca arundinacea; Genetic diversity; Genetic markers; Geographical distribution; Lolium perenne; Neotyphodium; Simple sequence repeats
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| Abstract/Contents: | "Fungal species of the genus Neotyphodium form endophytic symbioses with agronomically important pasture grass species such as perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinacea Schreb.). The fungal mycelium proliferates within the vascular tissue of aerial tissues, especially the leaf base and leaf sheath, and is asexually propagated through colonisation of seeds. Fungal grass endophytes produce both beneficial (tolerance to abiotic stresses such as drought, deterrence of invertebrate herbivores) and deleterious effects (toxicity to mammalian herbivores) for pasture grass production. Herbivore toxicity effects are associated with production of alkaloids such as lolitrem B and ergovaline (producing mammalian toxicity syndromes such as ryegrass staggers and fescue toxicosis) and peramine (deterrence of feeding by insect pests such as the Argentine stem weevil). A genetic diversity study based on gene-associated simple sequence repeat (SSR) markers has identified the range of limited but significant global variation within N. lolii. This variation can be correlated with both geographical origin in Eurasia and major toxin proles. Using genotypic data as a predictor of likely toxin prole, a germplasm collection resource established on the basis of geographical targeting and genotypic analysis identified a discrete number of previously unidentified endophyte strains, some of which also have favourable toxin proles. These novel endophytes have been deployed into a novel method for inoculation of multiple strains into common genetic backgrounds of host grass, providing a panel of symbiota suitable for isogenic comparisons based on identity of either the grass or endophyte genotype. Members of the isogenic inoculation panel have been used to assess compatibility and intergenerational stability of the symbiota dissecting endophyte and host plant genotype effects." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"ISBN: 978-1-4675-4762-8"
"MBFT2012" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kaur, J., P. N. Ekanayake, M. Rabinovich, E. J. Ludlow, P. Tian, S. Rochfort, et al. 2012. Analysis of compatibility and stability in designer endophyte-grass associations between perennial ryegrass and Neotyphodium species. Proceedings of the 7th International Symposium on the Molecular Breeding of Forage and Turf. p. 109. |
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| Web URL(s):
http://www.grasslandoregon.com/assets/molecular-breeding-of-forage-and-turf.pdf#page=109
Last checked: 09/06/2016
Requires: PDF Reader
Notes: Item is within a single large file |
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