Identification of Arthrinium marii as Causal Agent of Olive Tree Dieback in Apulia (Southern Italy)

Olive (Olea europaea L. var. sativa) is one of the most economically important tree crops grown in the Mediterranean basin. Arthrinium Kunze ex Fr. (teleomorph: Apiospora Sacc.) is a widespread fungal genus, and Arthrinium marii Larrondo & Calvo is a ubiquitous species, found in algae, soil, pla...

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Veröffentlicht in:Plant disease. - 1997. - 104(2020), 3 vom: 01. März, Seite 694-701
1. Verfasser: Gerin, Donato (VerfasserIn)
Weitere Verfasser: Nigro, Franco, Faretra, Francesco, Pollastro, Stefania
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Arbosana ITS LSU sequence TUB2 and TEF1 sequences foliar chlorosis withering and twig defoliations Soil
Beschreibung
Zusammenfassung:Olive (Olea europaea L. var. sativa) is one of the most economically important tree crops grown in the Mediterranean basin. Arthrinium Kunze ex Fr. (teleomorph: Apiospora Sacc.) is a widespread fungal genus, and Arthrinium marii Larrondo & Calvo is a ubiquitous species, found in algae, soil, plants, and agricultural communities. A. marii was isolated from olive trees showing dieback from orchards located in Andria and in Fasano, Brindisi (Apulia, southern Italy) and identified based on morphological features and molecular analysis of four genomic regions (ITS, TUB2, TEF1, and LSU). Two-year-old olive plants artificially inoculated with three representative A. marii isolates showed complete dieback within 6 months, and the fungus was reisolated, satisfying Koch's postulates. This is the first report of A. marii causing dieback on olive trees that could represent an important threat for olive cultivation
Beschreibung:Date Completed 05.03.2020
Date Revised 05.03.2020
published: Print-Electronic
Citation Status MEDLINE
ISSN:0191-2917
DOI:10.1094/PDIS-03-19-0569-RE