Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy

From 2012–2016 plants of basil (Ocimum basilicum L.) and parsley (Petroselinum sativum Hoffm.) showing decline symptoms were collected from local markets in Foggia Province (southern Italy) and assessed to determine their main fungal pathogens. These plants showed symptoms including leaf yellowing,...

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Main Authors: Maria RAIMONDO, Antonia CARLUCCI
Format: Article
Language:English
Published: Firenze University Press 2018-09-01
Series:Phytopathologia Mediterranea
Subjects:
Online Access:https://oajournals.fupress.net/index.php/pm/article/view/5767
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author Maria RAIMONDO
Antonia CARLUCCI
author_facet Maria RAIMONDO
Antonia CARLUCCI
author_sort Maria RAIMONDO
collection DOAJ
description From 2012–2016 plants of basil (Ocimum basilicum L.) and parsley (Petroselinum sativum Hoffm.) showing decline symptoms were collected from local markets in Foggia Province (southern Italy) and assessed to determine their main fungal pathogens. These plants showed symptoms including leaf yellowing, necrotic lesions on stems, collar and roots, and in some cases, stunting of entire plants. Mycological analyses revealed fungal isolates mainly belonging to the Plectosphaerella genus. Molecular and morphological studies identified four species of Plectosphaerella: Plectosphaerella cucumerina, P. pauciseptata, P. plurivora, and P. ramiseptata. To understand the pathogenic roles of these fungi, and five other reference Plectosphaerella spp., pathogenicity tests were performed in vitro and in-vivo using, respectively, detached leaves and 30-d-old plants of basil (cv. Napoletano) and parsley (cv. Gigante di Napoli). All the fungal species isolated produced host symptoms, including necrotic spots, parenchymatic patches, hydropic areas, collar and root discolouration on leaves and young plants, with varying severity. The most aggressive species on both plants were P. pauciseptata and P. ramiseptata, while P. alismatis, P. citrulli, P. cucumerina, P. delsorboi, P. melonis, and P. plurivora gave less disease severity on both plants. This is the first report worldwide of P. cucumerina, P. pauciseptata, and P. ramiseptata as pathogens of parsley, and P. pauciseptata, P. plurivora, and P. ramiseptata as pathogens of basil.
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spelling doaj.art-4acc5a225847463dadc2a3508a5d6e322022-12-21T19:14:13ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952018-09-0157210.14601/Phytopathol_Mediterr-23206Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in ItalyMaria RAIMONDO0Antonia CARLUCCI1Department of Sciences of Agriculture, Food and the Environment, University of Foggia, Foggia, ItalyDepartment of Sciences of Agriculture, Food and the Environment, University of Foggia, Foggia, ItalyFrom 2012–2016 plants of basil (Ocimum basilicum L.) and parsley (Petroselinum sativum Hoffm.) showing decline symptoms were collected from local markets in Foggia Province (southern Italy) and assessed to determine their main fungal pathogens. These plants showed symptoms including leaf yellowing, necrotic lesions on stems, collar and roots, and in some cases, stunting of entire plants. Mycological analyses revealed fungal isolates mainly belonging to the Plectosphaerella genus. Molecular and morphological studies identified four species of Plectosphaerella: Plectosphaerella cucumerina, P. pauciseptata, P. plurivora, and P. ramiseptata. To understand the pathogenic roles of these fungi, and five other reference Plectosphaerella spp., pathogenicity tests were performed in vitro and in-vivo using, respectively, detached leaves and 30-d-old plants of basil (cv. Napoletano) and parsley (cv. Gigante di Napoli). All the fungal species isolated produced host symptoms, including necrotic spots, parenchymatic patches, hydropic areas, collar and root discolouration on leaves and young plants, with varying severity. The most aggressive species on both plants were P. pauciseptata and P. ramiseptata, while P. alismatis, P. citrulli, P. cucumerina, P. delsorboi, P. melonis, and P. plurivora gave less disease severity on both plants. This is the first report worldwide of P. cucumerina, P. pauciseptata, and P. ramiseptata as pathogens of parsley, and P. pauciseptata, P. plurivora, and P. ramiseptata as pathogens of basil.https://oajournals.fupress.net/index.php/pm/article/view/5767Ocimum basilicumPetroselinum sativumendophyteshemibiotrophs
spellingShingle Maria RAIMONDO
Antonia CARLUCCI
Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
Phytopathologia Mediterranea
Ocimum basilicum
Petroselinum sativum
endophytes
hemibiotrophs
title Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
title_full Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
title_fullStr Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
title_full_unstemmed Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
title_short Characterization and pathogenicity of <em>Plectosphaerella</em> spp. collected from basil and parsley in Italy
title_sort characterization and pathogenicity of em plectosphaerella em spp collected from basil and parsley in italy
topic Ocimum basilicum
Petroselinum sativum
endophytes
hemibiotrophs
url https://oajournals.fupress.net/index.php/pm/article/view/5767
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AT antoniacarlucci characterizationandpathogenicityofemplectosphaerellaemsppcollectedfrombasilandparsleyinitaly