OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum

During 2012–2014 in southeastern Poland the species Colletotrichum fuscum was isolated from the leaves of oregano (Origanum vulgare L.) showing the symptoms of necrotic, concentrically zoned spots with a lighter center and a slightly raised edge. Morphology of nine randomly chosen isolates from the...

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Main Authors: Beata Zimowska, Ewa Dorota Zalewska, Ewa Dorota Król
Format: Article
Language:English
Published: University of Life Sciences in Lublin - Publishing House 2016-08-01
Series:Acta Scientiarum Polonorum: Hortorum Cultus
Subjects:
Online Access:https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2466
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author Beata Zimowska
Ewa Dorota Zalewska
Ewa Dorota Król
author_facet Beata Zimowska
Ewa Dorota Zalewska
Ewa Dorota Król
author_sort Beata Zimowska
collection DOAJ
description During 2012–2014 in southeastern Poland the species Colletotrichum fuscum was isolated from the leaves of oregano (Origanum vulgare L.) showing the symptoms of necrotic, concentrically zoned spots with a lighter center and a slightly raised edge. Morphology of nine randomly chosen isolates from the fungus population and reference isolate CBS obtained from CBS-KNAW Fungal Biodiversity Centre were studied. Each isolate was cultured on PDA medium, at the temperatures 24°C for 14 days. The character of the cultures, the color of the averse and the reverse, the formation of morphological struc-tures of the fungus, i.e. acervuli, conidia, appressoria and chlamydospores were studied. Ultrastructural observations of morphological structures were undertaken using scanning electron microscopy. The presence of setose acervuli, conidia, chlamydospores and ap-pressoria was visible. Moreover, studies on the biotic effect between C. fuscum and other species of phyllosphere fungi of oregano showed that all tested fungi inhibited the growth of C. fuscum, but the size of the limiting effect was different. Fungi from genera Trichoderma and Clonostachys were found out to be the most effective and positive antagonists. Alternaria alternata, Botrytis cinerea and Fusarium spp. – despite the high values of IBE were considered negative antagonists.
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spelling doaj.art-4b26243560984ad49f42a372cd3cf2aa2023-12-12T09:44:54ZengUniversity of Life Sciences in Lublin - Publishing HouseActa Scientiarum Polonorum: Hortorum Cultus1644-06922545-14052016-08-01154OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscumBeata ZimowskaEwa Dorota ZalewskaEwa Dorota Król During 2012–2014 in southeastern Poland the species Colletotrichum fuscum was isolated from the leaves of oregano (Origanum vulgare L.) showing the symptoms of necrotic, concentrically zoned spots with a lighter center and a slightly raised edge. Morphology of nine randomly chosen isolates from the fungus population and reference isolate CBS obtained from CBS-KNAW Fungal Biodiversity Centre were studied. Each isolate was cultured on PDA medium, at the temperatures 24°C for 14 days. The character of the cultures, the color of the averse and the reverse, the formation of morphological struc-tures of the fungus, i.e. acervuli, conidia, appressoria and chlamydospores were studied. Ultrastructural observations of morphological structures were undertaken using scanning electron microscopy. The presence of setose acervuli, conidia, chlamydospores and ap-pressoria was visible. Moreover, studies on the biotic effect between C. fuscum and other species of phyllosphere fungi of oregano showed that all tested fungi inhibited the growth of C. fuscum, but the size of the limiting effect was different. Fungi from genera Trichoderma and Clonostachys were found out to be the most effective and positive antagonists. Alternaria alternata, Botrytis cinerea and Fusarium spp. – despite the high values of IBE were considered negative antagonists. https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2466Origanum vulgareoreganophyllosphere fungimorphologybiotic activity
spellingShingle Beata Zimowska
Ewa Dorota Zalewska
Ewa Dorota Król
OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
Acta Scientiarum Polonorum: Hortorum Cultus
Origanum vulgare
oregano
phyllosphere fungi
morphology
biotic activity
title OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
title_full OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
title_fullStr OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
title_full_unstemmed OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
title_short OCCURRENCE AND CHARACTERIZATION OF Colletotrichum fuscum
title_sort occurrence and characterization of colletotrichum fuscum
topic Origanum vulgare
oregano
phyllosphere fungi
morphology
biotic activity
url https://czasopisma.up.lublin.pl/index.php/asphc/article/view/2466
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AT ewadorotazalewska occurrenceandcharacterizationofcolletotrichumfuscum
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