Ultrastructural characterisation of the host-pathogen interface in white blister-infected Arabidopsis leaves

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dc.authoridSoylu, Emine Mine/0000-0001-5961-0848
dc.authoridSOYLU, Soner/0000-0003-1002-8958
dc.contributor.authorSoylu, S
dc.date.accessioned2024-09-18T19:52:33Z
dc.date.available2024-09-18T19:52:33Z
dc.date.issued2004
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractIn this study transmission electron microscopy (TEM) was used to examine details of the host-pathogen interface in Arabidopsis thaliana cotyledons infected by Albugo candida, causal agent of white blister. After successful entry through stomatal pores, the pathogen developed a substomatal vesicle and subsequently produced intercellular hyphae. 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 spherical and 4.5 mum in diameter. Each haustorium was connected to intercellular hyphae by a narrow, slender haustorium neck. The cytoplasm of the haustorium included the organelles characteristic of the pathogen. No obvious response was observed in host cells following formation of haustoria. Most of the 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 cells suggest that the pathogen exerts considerable control over basic cellular processes and in this respect, response to this biotrophic Oomycete differs considerably from responses to other pathogens such as necrotrophs. Modification of the host plasma membrane (PM) along the cell wall and around the haustoria, was detected by applying the periodic acid-chromic acid-phosphotungstic acid (PACP) staining technique. After staining with PACP, the host PM was found to be intensely electron dense where it was adjacent to the host cell wall and the distal region of the haustorial neck. By contrast, the extrahaustorial membrane, where the host PM surrounded the haustorium, was consistently very lightly stained.en_US
dc.identifier.doi10.1007/s11046-004-2453-9
dc.identifier.endpage464en_US
dc.identifier.issn0301-486X
dc.identifier.issn1573-0832
dc.identifier.issue4en_US
dc.identifier.pmid15630555en_US
dc.identifier.scopus2-s2.0-12544252597en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage457en_US
dc.identifier.urihttps://doi.org/10.1007/s11046-004-2453-9
dc.identifier.urihttps://hdl.handle.net/20.500.12483/7510
dc.identifier.volume158en_US
dc.identifier.wosWOS:000226727000009en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofMycopathologiaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAlbugoen_US
dc.subjectArabidopsisen_US
dc.subjecthaustoriumen_US
dc.subjectplasma membraneen_US
dc.subjectultrastructureen_US
dc.titleUltrastructural characterisation of the host-pathogen interface in white blister-infected Arabidopsis leavesen_US
dc.typeArticleen_US

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