Nonhost resistance of rice to rust pathogens
Rice is atypical in that it is an agricultural cereal that is immune to fungal rust diseases. This report demonstrates that several cereal rust species (Puccinia graminis f. sp tritici, P. triticina, P. striiformis, and P. hordei) can infect rice and produce all the infection structures necessary fo...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Scientific Societies
2011
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/165857 |
| _version_ | 1855521053665656832 |
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| author | Ayliffe, Michael Devilla, Rosangela Mago, Rohit White, Rosemary Talbot, Mark Pryor, Anthony Leung, Hei |
| author_browse | Ayliffe, Michael Devilla, Rosangela Leung, Hei Mago, Rohit Pryor, Anthony Talbot, Mark White, Rosemary |
| author_facet | Ayliffe, Michael Devilla, Rosangela Mago, Rohit White, Rosemary Talbot, Mark Pryor, Anthony Leung, Hei |
| author_sort | Ayliffe, Michael |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice is atypical in that it is an agricultural cereal that is immune to fungal rust diseases. This report demonstrates that several cereal rust species (Puccinia graminis f. sp tritici, P. triticina, P. striiformis, and P. hordei) can infect rice and produce all the infection structures necessary for plant colonization, including specialized feeding cells (haustoria). Some rust infection sites are remarkably large and many plant cells are colonized, suggesting that nutrient uptake occurs to support this growth. Rice responds with an active, nonhost resistance (NHR) response that prevents fungal sporulation and that involves callose deposition, production of reactive oxygen species, and, occasionally, cell death. Genetic variation for the efficacy of NHR to wheat stem rust and wheat leaf rust was observed. Unlike cereal rusts, the rust pathogen (Melampsora lini) of the dicotyledenous plant flax (Linum usitatissimum) rarely successfully infects rice due to an apparent inability to recognize host-derived signals. Morphologically abnormal infection structures are produced and appressorial-like structures often don't coincide with stomata. These data suggest that basic compatibility is an important determinate of nonhost infection outcomes of rust diseases on cereals, with cereal rusts being more capable of infecting a cereal nonhost species compared with rust species that are adapted for dicot hosts. |
| format | Journal Article |
| id | CGSpace165857 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Scientific Societies |
| publisherStr | Scientific Societies |
| record_format | dspace |
| spelling | CGSpace1658572024-12-19T14:12:18Z Nonhost resistance of rice to rust pathogens Ayliffe, Michael Devilla, Rosangela Mago, Rohit White, Rosemary Talbot, Mark Pryor, Anthony Leung, Hei disease resistance fungal diseases fungal morphology fungi genetic variation hosts pathogens plant diseases plant pathogenic fungi stomata Rice is atypical in that it is an agricultural cereal that is immune to fungal rust diseases. This report demonstrates that several cereal rust species (Puccinia graminis f. sp tritici, P. triticina, P. striiformis, and P. hordei) can infect rice and produce all the infection structures necessary for plant colonization, including specialized feeding cells (haustoria). Some rust infection sites are remarkably large and many plant cells are colonized, suggesting that nutrient uptake occurs to support this growth. Rice responds with an active, nonhost resistance (NHR) response that prevents fungal sporulation and that involves callose deposition, production of reactive oxygen species, and, occasionally, cell death. Genetic variation for the efficacy of NHR to wheat stem rust and wheat leaf rust was observed. Unlike cereal rusts, the rust pathogen (Melampsora lini) of the dicotyledenous plant flax (Linum usitatissimum) rarely successfully infects rice due to an apparent inability to recognize host-derived signals. Morphologically abnormal infection structures are produced and appressorial-like structures often don't coincide with stomata. These data suggest that basic compatibility is an important determinate of nonhost infection outcomes of rust diseases on cereals, with cereal rusts being more capable of infecting a cereal nonhost species compared with rust species that are adapted for dicot hosts. 2011-10 2024-12-19T12:55:33Z 2024-12-19T12:55:33Z Journal Article https://hdl.handle.net/10568/165857 en Scientific Societies Ayliffe, Michael; Devilla, Rosangela; Mago, Rohit; White, Rosemary; Talbot, Mark; Pryor, Anthony and Leung, Hei. 2011. Nonhost resistance of rice to rust pathogens. MPMI, Volume 24 no. 10 p. 1143-1155 |
| spellingShingle | disease resistance fungal diseases fungal morphology fungi genetic variation hosts pathogens plant diseases plant pathogenic fungi stomata Ayliffe, Michael Devilla, Rosangela Mago, Rohit White, Rosemary Talbot, Mark Pryor, Anthony Leung, Hei Nonhost resistance of rice to rust pathogens |
| title | Nonhost resistance of rice to rust pathogens |
| title_full | Nonhost resistance of rice to rust pathogens |
| title_fullStr | Nonhost resistance of rice to rust pathogens |
| title_full_unstemmed | Nonhost resistance of rice to rust pathogens |
| title_short | Nonhost resistance of rice to rust pathogens |
| title_sort | nonhost resistance of rice to rust pathogens |
| topic | disease resistance fungal diseases fungal morphology fungi genetic variation hosts pathogens plant diseases plant pathogenic fungi stomata |
| url | https://hdl.handle.net/10568/165857 |
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