Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia

Ramularia leaf spot (RLS) caused by the fungus Ramularia collo-cygni (Rcc) is affecting barley fields throughout temperate regions worldwide. The first finding of RLS in Estonia was reported on spring barley in 2012 and since then the area of RLS infection has been widening in Estonia. This work has...

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Main Authors: Andres Mäe, Pille Sooväli, Lee Põllumaa
Format: Article
Language:English
Published: Scientific Agricultural Society of Finland 2018-06-01
Series:Agricultural and Food Science
Online Access:https://journal.fi/afs/article/view/69116
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author Andres Mäe
Pille Sooväli
Lee Põllumaa
author_facet Andres Mäe
Pille Sooväli
Lee Põllumaa
author_sort Andres Mäe
collection DOAJ
description Ramularia leaf spot (RLS) caused by the fungus Ramularia collo-cygni (Rcc) is affecting barley fields throughout temperate regions worldwide. The first finding of RLS in Estonia was reported on spring barley in 2012 and since then the area of RLS infection has been widening in Estonia. This work has been carried out to monitor the natural infection of Rcc in two winter barley cultivars and to follow artificial fungal infection by a PCR-based assay. Using our approach, we could detect presence of the fungal pathogen in barley leaves before the appearance of disease symptoms at early growth stages. Response of two tested cultivars to Rcc infection in the field conditions was different, showing genotype-environment interaction in the development and spreading of Rcc. In harvested grain samples at the end of growing season no Rcc infection was detected. The role of external inoculum, Rcc conidia transmitted from various grasses (Poaceae) growing next to crop fields, is discussed. These results provide further insight into the epidemiology of Rcc.
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spelling doaj.art-71098486e35446a69d1dd5054edaadeb2022-12-22T03:07:43ZengScientific Agricultural Society of FinlandAgricultural and Food Science1459-60671795-18952018-06-0127210.23986/afsci.69116Ramularia collo-cygni: a new pathogen spreading in barley fields in EstoniaAndres Mäe0Pille Sooväli1Lee Põllumaa2Department of Plant Protection, Estonian Crop Research Institute, J. Aamisepa 1, 48309 Jõgeva, Jõgeva vald, EstoniaDepartment of Plant Protection, Estonian Crop Research Institute, J. Aamisepa 1, 48309 Jõgeva, Jõgeva vald, EstoniaDepartment of Plant Protection, Estonian Crop Research Institute, J. Aamisepa 1, 48309 Jõgeva, Jõgeva vald, EstoniaRamularia leaf spot (RLS) caused by the fungus Ramularia collo-cygni (Rcc) is affecting barley fields throughout temperate regions worldwide. The first finding of RLS in Estonia was reported on spring barley in 2012 and since then the area of RLS infection has been widening in Estonia. This work has been carried out to monitor the natural infection of Rcc in two winter barley cultivars and to follow artificial fungal infection by a PCR-based assay. Using our approach, we could detect presence of the fungal pathogen in barley leaves before the appearance of disease symptoms at early growth stages. Response of two tested cultivars to Rcc infection in the field conditions was different, showing genotype-environment interaction in the development and spreading of Rcc. In harvested grain samples at the end of growing season no Rcc infection was detected. The role of external inoculum, Rcc conidia transmitted from various grasses (Poaceae) growing next to crop fields, is discussed. These results provide further insight into the epidemiology of Rcc.https://journal.fi/afs/article/view/69116
spellingShingle Andres Mäe
Pille Sooväli
Lee Põllumaa
Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
Agricultural and Food Science
title Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
title_full Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
title_fullStr Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
title_full_unstemmed Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
title_short Ramularia collo-cygni: a new pathogen spreading in barley fields in Estonia
title_sort ramularia collo cygni a new pathogen spreading in barley fields in estonia
url https://journal.fi/afs/article/view/69116
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