THE SENSITIVITY OF ASPERGILLUS NIGER AND FUSARIUM OXYSPORUM f. sp CEPAE TO FUNGISTASIS IN ONION-GROWING SOILS

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dc.contributor.authorÖzer, Nuray
dc.contributor.authorKoç, M.
dc.contributor.authorDer, B.
dc.date.accessioned2022-05-11T14:10:23Z
dc.date.available2022-05-11T14:10:23Z
dc.date.issued2009
dc.departmentFakülteler, Ziraat Fakültesi, Bitki Koruma Bölümü
dc.departmentEnstitüler, Fen Bilimleri Enstitüsü, Bitki Koruma Ana Bilim Dalı
dc.description.abstractTwenty-seven soil samples were collected from the onion (Allium cepa L.) fields of Tekirdag province, Turkey. These samples were investigated for the sensitivity of Aspergillus niger V. Tieghem (AN) and Fusarium oxysporum Schlechtend.: Fr. f. sp. cepae (H. N. Hans.) W C. Snyder H. N. Hans (FOC), known as the causal agents of black Mould and basal rot of onion, respectively, to soil fungistasis. Fungistasis was evaluated using two methods: inhibition of pathogen spore germination by volatile compounds from the sod and determination of the antagonistic fungal Population of soil samples. Volatile compounds in twelve of the sod samples strongly (>70%) inhibited spore germination of only AN. Inhibition rates of volatile compounds were not correlated with physical and chemical characters of the soils. Fungi isolated from soil samples were evaluated for their antagonism to both pathogens using dual cultures. The population of species causing over 70% inhibition of radial growth on pathogens was calculated in soil samples. The presence of both volatile compounds inhibiting spore germination of AN and populations of fungi antagonistic for AN and FOC were observed in six of the soil samples. The possible effects of two fungistatic mechanisms in soils on disease development by these pathogens are discussed.
dc.description.sponsorshipTurkish Scientific and Technical Research Council (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [TOVAG 106 O 503]
dc.description.sponsorshipThis research was supported by the Turkish Scientific and Technical Research Council (TUBITAK) (Project No: TOVAG 106 O 503). We are grateful to Dr. Martha Rowe (University of Nebraska, Lincoln, USA) for improving the language and for useful remarks.
dc.identifier.endpage410
dc.identifier.issn1125-4653
dc.identifier.issn2239-7264
dc.identifier.issue2en_US
dc.identifier.startpage401
dc.identifier.urihttps://hdl.handle.net/20.500.11776/5385
dc.identifier.volume91
dc.identifier.wosWOS:000267977600015
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.institutionauthorÖzer, Nuray
dc.institutionauthorKoç, M.
dc.institutionauthorDer, B.
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Plant Pathology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectantagonist fungus population
dc.subjectAspergillus niger
dc.subjectFusarium oxysporum f. sp cepae
dc.subjectonion (Allium cepa L.)
dc.subjectsoil volatile compounds
dc.subjectBiological-Control
dc.subjectTrichoderma-Harzianum
dc.subjectDisease
dc.subjectWilt
dc.subjectSuppressiveness
dc.subjectMicroorganisms
dc.subjectRot
dc.subjectColonization
dc.subjectAmendments
dc.subjectConidia
dc.titleTHE SENSITIVITY OF ASPERGILLUS NIGER AND FUSARIUM OXYSPORUM f. sp CEPAE TO FUNGISTASIS IN ONION-GROWING SOILS
dc.typeArticle

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