Phytotoxin production and phytoalexin elicitation by the phytopathogenic fungus Sclerotinia sclerotiorum (Record no. 43172)

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control field MX-MdCICY
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control field 20250625124729.0
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Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-8910
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Title Phytotoxin production and phytoalexin elicitation by the phytopathogenic fungus Sclerotinia sclerotiorum
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Volume/sequential designation Journal of Chemical Ecology, 30(11), p.2163-2179, 2004
520 3# - SUMMARY, ETC.
Summary, etc. Abstract-The fungus Sclerotinia sclerotiorum (Lib.)de Bary causes rot disease in a vast range of plant families, including Cruciferae Brassicaceae). We investigated the production of phytotoxins by S. sclerotiorum by using a bioassay-guided isolation, as well as the phytoalexins produced by the resistant wild crucifer Erucastrum gallicum under elicitation by S. sclerotiorum and other agents.We established for the first time that S. sclerotiorum produces a somewhat selective phytotoxin, sclerin, which is phytotoxic to three cruciferous species (Brassica napus, B. juncea, and Sinapis alba)susceptible to Sclerotinia stem rot disease, causing severe necrosis and chlorosis, but not to a resistant pecies (Erucastrum gallicum). In addition, we have shown that oleic acid, the major fatty acid isolated from sclerotia of S. sclerotiorum is responsible for the toxic activity of extracts of sclerotia to brine shrimp larvae (Artemia salina). Phytoalexin elicitation in leaves of E. gallicum led to the isolation of three known phytoalexins: indole-3-acetonitrile, arvelexin, and 1-methoxyspirobrassinin. Considering that resistance of E. gallicum to S. sclerotiorum is potentially transferable to B. rapa, a susceptible canola species, and that arvelexin, and 1- methoxyspirobrassinin are not produced by B. rapa, these phytoalexins may become useful markers for resistance against S. sclerotiorum.
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Topical term or geographic name entry element ANTIFUNGAL
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Topical term or geographic name entry element BRASSICA NAPUS
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Topical term or geographic name entry element B. JUNCEA
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Topical term or geographic name entry element B. RAPA
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Topical term or geographic name entry element CRUCIFERAE
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Topical term or geographic name entry element ERUCASTRUM GALLICUM
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Topical term or geographic name entry element PHYTOALEXIN
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PHYTOTOXIN
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PLANT PATHOGEN
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Topical term or geographic name entry element SCLERIN
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Topical term or geographic name entry element SCLEROTINIA SCLEROTIORUM
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Topical term or geographic name entry element STEM ROT.
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Personal name Soledade, M.
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Personal name Pedras, C.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Ahiahonu, P.W.K.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/12fPcrYVFIb6xi-_el5dikYz10CPj9-e-/view?usp=drivesdk">https://drive.google.com/file/d/12fPcrYVFIb6xi-_el5dikYz10CPj9-e-/view?usp=drivesdk</a>
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-8910 25.06.2025 25.06.2025 Documentos solicitados