Carpogenic germination of Sclerotinia sclerotiorum sclerotia in Brassica oleracea var gemmifera (VN: Brussels sprouts) in North Patagonia, Argentina

Carpogenic germination of Sclerotinia sclerotiorum sclerotia in Brassica oleracea var gemmifera (VN: Brussels sprouts) in North Patagonia, Argentina

•First report of the sexual phase of Sclerotinia sclerotiorum in Patagonia - Argentina.•High incidence of ascosporic infections. In August 2018, symptoms of apical and basal rot resembling those caused by Sclerotinia sclerotiorum infection were observed in a commercial Brussels sprouts field in Nort...

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Bibliographic Details
Published in:Revista argentina de microbiología Vol. 56; no. 2; pp. 187 - 190
Main Authors: Scarso, A.G., Sosa, M.C., Ousset, M.J., Lutz, M.C.
Format: Journal Article
Language:English
Published: Argentina Elsevier España, S.L.U 01-04-2024
Subjects:
Aerial-apical rot
Argentina
Ascomycota - physiology
Ascosporas
Ascospores
Brassica - microbiology
Fase sexual
Moho blanco
Plant Diseases - microbiology
Podredumbre aérea – apical
Sexual phase
White mold
Argentina
Fase sexual
White mold
Aerial-apical rot
Sexual phase
Ascosporas
Moho blanco
Ascospores
Podredumbre aérea – apical
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Summary:•First report of the sexual phase of Sclerotinia sclerotiorum in Patagonia - Argentina.•High incidence of ascosporic infections. In August 2018, symptoms of apical and basal rot resembling those caused by Sclerotinia sclerotiorum infection were observed in a commercial Brussels sprouts field in North Patagonia, Argentina. The incidence of apical and basal rot was 23.30% and 2.30%, respectively. Carpogenic germination of sclerotia was detected in shaded, highly humid soil areas. To our knowledge, this is the first report of carpogenic germination of sclerotia from S. sclerotiorum in North Patagonia. En agosto de 2018, se observaron síntomas de podredumbre basal y apical similares a los producidos por la infección por Sclerotinia sclerotiorum en un cultivo comercial de repollitos de Bruselas de la Patagonia Norte, en Argentina. La incidencia de podredumbre apical y basal fue del 23,30% y 2,30%, respectivamente. Se detectó la germinación carpogénica de esclerocios en áreas de suelos sombreados y muy húmedos. De acuerdo con nuestro conocimiento, este es el primer reporte de la germinación carpogénica de esclerocios de S. sclerotiorum en la Patagonia Norte.
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ISSN:0325-7541
DOI:10.1016/j.ram.2023.12.005