Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria
The effects of nutrients and microorganisms from olive carpospheres on germination of conidia and the development of appressoria of Colletotrichum godetiae were investigated. The final germination ratio was the result of a dynamic equilibrium between the positive action of nutrients and the negative...
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| Format: | Article |
| Language: | English |
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Firenze University Press
2015-04-01
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| Series: | Phytopathologia Mediterranea |
| Subjects: | |
| Online Access: | https://oajournals.fupress.net/index.php/pm/article/view/5599 |
| _version_ | 1818393736292335616 |
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| author | Giovanni AGOSTEO Simona SANZANI Carmela MACRÌ Santa CACCIOLA Maria LI DESTRI NICOSIA Leonardo SCHENA |
| author_facet | Giovanni AGOSTEO Simona SANZANI Carmela MACRÌ Santa CACCIOLA Maria LI DESTRI NICOSIA Leonardo SCHENA |
| author_sort | Giovanni AGOSTEO |
| collection | DOAJ |
| description | The effects of nutrients and microorganisms from olive carpospheres on germination of conidia and the development of appressoria of Colletotrichum godetiae were investigated. The final germination ratio was the result of a dynamic equilibrium between the positive action of nutrients and the negative competition of indigenous microorganisms. In contrast, formation of appressoria was greatly increased by microorganisms and reduced by nutrients. Removal of the microbial fraction from olive leachates rich in natural nutrients amplified the vegetative phase after conidium germination, resulting in increased germtube length, and delayed and reduced production of appressoria. Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of conidia and reduced the formation of appressoria. These results provide evidence that nutrients and microorganisms of the olive carposphere play important roles in the infection processes of C. godetiae. Since appressoria are necessary for successful host infection, microorganisms may favour the penetration of C. godetiae by stimulating the production of appressoria, reducing saprophyitic pre-infectional mycelial growth and reducing duration of the critical moist period required for host penetration. |
| first_indexed | 2024-12-14T05:50:03Z |
| format | Article |
| id | doaj.art-6db57d65a8f7497390f529d78106dabc |
| institution | Directory Open Access Journal |
| issn | 0031-9465 1593-2095 |
| language | English |
| last_indexed | 2024-12-14T05:50:03Z |
| publishDate | 2015-04-01 |
| publisher | Firenze University Press |
| record_format | Article |
| series | Phytopathologia Mediterranea |
| spelling | doaj.art-6db57d65a8f7497390f529d78106dabc2022-12-21T23:14:45ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952015-04-0154110.14601/Phytopathol_Mediterr-1430213503Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoriaGiovanni AGOSTEOSimona SANZANICarmela MACRÌSanta CACCIOLAMaria LI DESTRI NICOSIALeonardo SCHENA0Dipartimento di Agraria, Universita' Mediterranea di Reggio CalabriaThe effects of nutrients and microorganisms from olive carpospheres on germination of conidia and the development of appressoria of Colletotrichum godetiae were investigated. The final germination ratio was the result of a dynamic equilibrium between the positive action of nutrients and the negative competition of indigenous microorganisms. In contrast, formation of appressoria was greatly increased by microorganisms and reduced by nutrients. Removal of the microbial fraction from olive leachates rich in natural nutrients amplified the vegetative phase after conidium germination, resulting in increased germtube length, and delayed and reduced production of appressoria. Three exogenous nutrients (sucrose, asparagine and glycine) increased germination of conidia and reduced the formation of appressoria. These results provide evidence that nutrients and microorganisms of the olive carposphere play important roles in the infection processes of C. godetiae. Since appressoria are necessary for successful host infection, microorganisms may favour the penetration of C. godetiae by stimulating the production of appressoria, reducing saprophyitic pre-infectional mycelial growth and reducing duration of the critical moist period required for host penetration.https://oajournals.fupress.net/index.php/pm/article/view/5599olive anthracnosemicrobial fractionnutrientspenetration |
| spellingShingle | Giovanni AGOSTEO Simona SANZANI Carmela MACRÌ Santa CACCIOLA Maria LI DESTRI NICOSIA Leonardo SCHENA Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria Phytopathologia Mediterranea olive anthracnose microbial fraction nutrients penetration |
| title | Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria |
| title_full | Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria |
| title_fullStr | Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria |
| title_full_unstemmed | Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria |
| title_short | Olive leachates affect germination of <em>Colletotrichum godetiae</em> conidia and the development of appressoria |
| title_sort | olive leachates affect germination of em colletotrichum godetiae em conidia and the development of appressoria |
| topic | olive anthracnose microbial fraction nutrients penetration |
| url | https://oajournals.fupress.net/index.php/pm/article/view/5599 |
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