Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice

Apoplexy of apricots represents a long-lasting problem for Czech apricots growers. It is assumed that apricot tree dieback is caused by a complex of biotic and abiotic factors. Pathogenic bacteria, fungi and viruses are considered a biotic factor that plays a key role in apricot withering. To evalua...

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Autor principal:	Martina Rejlová
Formato:	article
Lenguaje:	CS EN
Publicado:	VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o. 2021
Materias:	apricots pcr diagnostics european stone fruit yellows esfy Plant culture SB1-1110 Botany QK1-989
Acceso en línea:	https://doaj.org/article/e1224bde82904dea8a1bf120dc354629
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spelling	oai:doaj.org-article:e1224bde82904dea8a1bf120dc3546292021-11-24T06:58:23ZPrevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice2695-1347https://doaj.org/article/e1224bde82904dea8a1bf120dc3546292021-11-01T00:00:00Zhttps://vpovsuo.cz/wp-content/uploads/2021/11/5_Rejlova-1_VPO-27_2_21.pdfhttps://doaj.org/toc/2695-1347Apoplexy of apricots represents a long-lasting problem for Czech apricots growers. It is assumed that apricot tree dieback is caused by a complex of biotic and abiotic factors. Pathogenic bacteria, fungi and viruses are considered a biotic factor that plays a key role in apricot withering. To evaluate health status in commercial apricot orchards, a study was conducted between 2019 and 2021. Within three years, 16 localities were monitored in four most important apricot planting areas in the Czech Republic. In total, 246 samples were collected that were analyzed by real-time PCR for the presence of the following pathogens: ˈCandidatus Phytoplasma prunorumˈ, Pseudomonas syringae, Cytospora spp., Erwinia amylovora, plum pox virus (PPV), prune dwarf virus (PDV), prunus necrotic ringspot virus (PNRSV), and little cherry virus 1 and 2 (LChV 1 and LChV 2). Our results have shown that ˈCandidatus Phytoplasma prunorumˈ is highly prevalent (70.6 % of symptomatic samples), and confirmed a primary role of phytoplasmas in withering of apricots. Pseudomonas syringae bacterium was detected in 2/3 of samples. Cytospora spp. were another pathogens found in apricot dying trees in nearly 25 % of symptomatic trees. PPV was detected in older orchards, but its presence was not associated with apricot apoplexy, since it was also found in asymptomatic samples with about the same frequency. PDV and PNRSV were found only sporadically, and likely do not play a major role in apricots dieback. Alarmingly, LChV 1 was observed in one young orchard in 80 % of samples. LChV 2 and Erwinia amylovora have not been detected.Martina RejlováVÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o.articleapricotspcr diagnosticseuropean stone fruit yellowsesfyPlant cultureSB1-1110BotanyQK1-989CSENVědecké Práce Ovocnářské, Vol 27, Iss 2, Pp 53-69 (2021)
institution	DOAJ
collection	DOAJ
language	CS EN
topic	apricots pcr diagnostics european stone fruit yellows esfy Plant culture SB1-1110 Botany QK1-989
spellingShingle	apricots pcr diagnostics european stone fruit yellows esfy Plant culture SB1-1110 Botany QK1-989 Martina Rejlová Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
description	Apoplexy of apricots represents a long-lasting problem for Czech apricots growers. It is assumed that apricot tree dieback is caused by a complex of biotic and abiotic factors. Pathogenic bacteria, fungi and viruses are considered a biotic factor that plays a key role in apricot withering. To evaluate health status in commercial apricot orchards, a study was conducted between 2019 and 2021. Within three years, 16 localities were monitored in four most important apricot planting areas in the Czech Republic. In total, 246 samples were collected that were analyzed by real-time PCR for the presence of the following pathogens: ˈCandidatus Phytoplasma prunorumˈ, Pseudomonas syringae, Cytospora spp., Erwinia amylovora, plum pox virus (PPV), prune dwarf virus (PDV), prunus necrotic ringspot virus (PNRSV), and little cherry virus 1 and 2 (LChV 1 and LChV 2). Our results have shown that ˈCandidatus Phytoplasma prunorumˈ is highly prevalent (70.6 % of symptomatic samples), and confirmed a primary role of phytoplasmas in withering of apricots. Pseudomonas syringae bacterium was detected in 2/3 of samples. Cytospora spp. were another pathogens found in apricot dying trees in nearly 25 % of symptomatic trees. PPV was detected in older orchards, but its presence was not associated with apricot apoplexy, since it was also found in asymptomatic samples with about the same frequency. PDV and PNRSV were found only sporadically, and likely do not play a major role in apricots dieback. Alarmingly, LChV 1 was observed in one young orchard in 80 % of samples. LChV 2 and Erwinia amylovora have not been detected.
format	article
author	Martina Rejlová
author_facet	Martina Rejlová
author_sort	Martina Rejlová
title	Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
title_short	Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
title_full	Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
title_fullStr	Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
title_full_unstemmed	Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice
title_sort	prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v české republice
publisher	VÝZKUMNÝ A ŠLECHTITELSKÝ ÚSTAV OVOCNÁŘSKÝ HOLOVOUSY s.r.o.
publishDate	2021
url	https://doaj.org/article/e1224bde82904dea8a1bf120dc354629
work_keys_str_mv	AT martinarejlova prevalencepatogenuasociovanychsesyndromempredcasnehoodumiranimerunekvkomercnichvysadbachvceskerepublice
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Prevalence patogenů asociovaných se syndromem předčasného odumírání meruněk v komerčních výsadbách v České republice

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