Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em>
Quercus suber seedlings were potted in soils infested with increasing concentrations of Phytophthora cinnamomi chlamydospores and submitted to weekly flooding for 3 months to favour root infections. Increasing quantities of chlamydospores led to an exponential increase in their ability to germinate....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Firenze University Press
2015-09-01
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| Series: | Phytopathologia Mediterranea |
| Subjects: | |
| Online Access: | https://oajournals.fupress.net/index.php/pm/article/view/5636 |
| _version_ | 1818177561738346496 |
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| author | María Socorro SERRANO Pedro RÍOS Mario GONZÁLEZ María Esperanza SÁNCHEZ |
| author_facet | María Socorro SERRANO Pedro RÍOS Mario GONZÁLEZ María Esperanza SÁNCHEZ |
| author_sort | María Socorro SERRANO |
| collection | DOAJ |
| description | Quercus suber seedlings were potted in soils infested with increasing concentrations of Phytophthora cinnamomi chlamydospores and submitted to weekly flooding for 3 months to favour root infections. Increasing quantities of chlamydospores led to an exponential increase in their ability to germinate. Root symptoms (necrosis and/or absence of feeder roots) were significantly more severe than those recorded in uninfested soil only for plants potted in soils infested with 61 cfu g-1 or more. Although generated using potting mix, this minimum threshold represents a tool for checking the potential infectivity of infested soils or to assess the effectiveness of some control methods to reduce soil inoculum. However, a low level of root infection was recorded even at 3 cfu g-1. Therefore, long-term disease risk may be present whenever the pathogen is detectable in oak forest soils. |
| first_indexed | 2024-12-11T20:34:03Z |
| format | Article |
| id | doaj.art-04e45dc381a74a44a303efebcc335ae0 |
| institution | Directory Open Access Journal |
| issn | 0031-9465 1593-2095 |
| language | English |
| last_indexed | 2024-12-11T20:34:03Z |
| publishDate | 2015-09-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Phytopathologia Mediterranea |
| spelling | doaj.art-04e45dc381a74a44a303efebcc335ae02022-12-22T00:51:43ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952015-09-0154310.14601/Phytopathol_Mediterr-1512814207Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em>María Socorro SERRANO0Pedro RÍOS1Mario GONZÁLEZ2María Esperanza SÁNCHEZ3University of California, BerkeleyUniversity of CórdobaUniversity of CórdobaUniversity of CórdobaQuercus suber seedlings were potted in soils infested with increasing concentrations of Phytophthora cinnamomi chlamydospores and submitted to weekly flooding for 3 months to favour root infections. Increasing quantities of chlamydospores led to an exponential increase in their ability to germinate. Root symptoms (necrosis and/or absence of feeder roots) were significantly more severe than those recorded in uninfested soil only for plants potted in soils infested with 61 cfu g-1 or more. Although generated using potting mix, this minimum threshold represents a tool for checking the potential infectivity of infested soils or to assess the effectiveness of some control methods to reduce soil inoculum. However, a low level of root infection was recorded even at 3 cfu g-1. Therefore, long-term disease risk may be present whenever the pathogen is detectable in oak forest soils.https://oajournals.fupress.net/index.php/pm/article/view/5636chlamydosporescork oakinfection |
| spellingShingle | María Socorro SERRANO Pedro RÍOS Mario GONZÁLEZ María Esperanza SÁNCHEZ Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> Phytopathologia Mediterranea chlamydospores cork oak infection |
| title | Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> |
| title_full | Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> |
| title_fullStr | Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> |
| title_full_unstemmed | Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> |
| title_short | Experimental minimum threshold for <em>Phytophthora cinnamomi</em> root disease expression on <em>Quercus suber</em> |
| title_sort | experimental minimum threshold for em phytophthora cinnamomi em root disease expression on em quercus suber em |
| topic | chlamydospores cork oak infection |
| url | https://oajournals.fupress.net/index.php/pm/article/view/5636 |
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