Light and electron microscopy of the compatible interaction between Arabidopsis and the downy mildew pathogen Peronospora parasitica

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dc.authoridSOYLU, Soner/0000-0003-1002-8958
dc.authoridSoylu, Emine Mine/0000-0001-5961-0848
dc.contributor.authorSoylu, EM
dc.contributor.authorSoylu, S
dc.date.accessioned2024-09-18T20:02:36Z
dc.date.available2024-09-18T20:02:36Z
dc.date.issued2003
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractIn this study, we focused on compatible interactions between Peronospora parasitica isolate Emoy-2 and wild-type (Oy-0) and mutant (Ws-eds1 ) Arabidopsis thaliana accessions by using light and transmission electron microscopy (TEM). Light microscopy of compatible interactions revealed that conidia germinated and penetrated through the anticlinal cell walls of two epidermal cells. Rapid spreading of the hyphal growth with formation of numerous haustoria within the mesophyll cells was subsequently followed by profuse sporulation in the absence of host cell necrosis on both wild-type and mutant accessions. TEM observations revealed that coenocytic intercellular hyphae ramified and spread intercellularly throughout the host tissue forming several haustoria in host mesophyll cells. Intracellular haustoria were lobed with the diameter of 6-7 mum. Each haustorium was connected to intercellular hyphae in the absence of apparent haustorial neck. The cytoplasm of the haustorium included the organelles characteristic of the pathogen. Callose-like deposits were frequently observed at sites of penetration around the proximal region of the haustorial neck. Apart from a few callose ensheatments, no obvious response was observed in host cells following formation of haustoria. Most of mesophyll cells contained normal haustoria and the host cytoplasm displayed a high degree of structural integrity. Absence of host cell wall alteration and cell death in penetrated host cell of both accessions suggest that the pathogen exerts considerable control over basic cellular processes and in this respect, response to this biotroph oomycete differs considerably from responses to other pathogens such as necrotrophs.en_US
dc.identifier.doi10.1046/j.1439-0434.2003.00723.x
dc.identifier.endpage306en_US
dc.identifier.issn0931-1785
dc.identifier.issn1439-0434
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-1942432808en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage300en_US
dc.identifier.urihttps://doi.org/10.1046/j.1439-0434.2003.00723.x
dc.identifier.urihttps://hdl.handle.net/20.500.12483/7900
dc.identifier.volume151en_US
dc.identifier.wosWOS:000183308800002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofJournal of Phytopathologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectArabidopsisen_US
dc.subjectPeronospora parasiticaen_US
dc.subjecthaustoriumen_US
dc.subjectUltrastructureen_US
dc.titleLight and electron microscopy of the compatible interaction between Arabidopsis and the downy mildew pathogen Peronospora parasiticaen_US
dc.typeArticleen_US

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