Maasikahaiguste esinemine Eesti tootmispõldudel
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Kuupäev
2026
Kättesaadavus
04.09.2026
Autorid
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Eesti Maaülikool
Abstrakt
Maasikas on oluline marjakultuur, mille saagikust ja kvaliteeti mõjutavad erinevad seenhaigused. Käesoleva töö eesmärk oli selgitada välja Eesti maasikapõldudel esinevad olulisemad haigused ning kirjeldada patogeensete seente jaotust erinevate taimeosade vahel. Töö hüpoteesiks oli, et Eesti tootmispõldude sümptomaatilistes proovides esineb mitmeid erinevaid maasikahaiguste tekitajaid. Uuringus koguti sümptomaatilisi maasikaproove Eesti tootmispõldudelt. Seened isoleeriti puhaskultuuridesse ning määrati PCR-analüüsi ja DNA sekveneerimise abil. Analüüsi tulemusena tuvastati nii patogeenseid kui ka mittepatogeenseid seeni. Kõige sagedamini esinesid perekonnad Colletotrichum, Cadophora, Botrytis ja Pilidium. Tulemused näitasid, et erinevad patogeenid olid seotud erinevate taimeosadega: Botrytis cinerea esines peamiselt õitel ja viljadel, samas kui Coniella fragariae, Neopestalotiopsis iranensis ja Fusarium avenaceum olid sagedamini seotud juurekaela kahjustustega. Lisaks tuvastati proovides ka mittepatogeenseid ja antagonistlikke seeni, nagu Clonostachys rosea ja Trichoderma, mis viitab maasikataime mikrobioomi mitmekesisusele. Tulemused kinnitasid hüpoteesi, et maasikaproovides esineb mitmeid erinevaid haigustekitajaid. Uuringu andis uusi teadmisi Eestis levivate maasika patogeensete seeneliikide kohta ning loob aluse edasisteks taimekaitse- ja resistentsusuuringuteks.
Strawberry is an important berry crop whose yield and quality are affected by various fungal diseases. The aim of this study was to identify the most important diseases occurring in Estonian strawberry production fields and to describe the distribution of pathogenic fungi among different plant parts. The hypothesis of the study was that symptomatic samples collected from Estonian production fields contain several different strawberry pathogens. Symptomatic strawberry samples were collected from production fields across Estonia. Fungi were isolated into pure cultures and identified using PCR analysis and DNA sequencing. The analysis revealed both pathogenic and non-pathogenic fungi. The most frequently detected genera were Colletotrichum, Cadophora, Botrytis, and Pilidium. The results showed that different pathogens were associated with different plant parts: Botrytis cinerea occurred mainly on flowers and fruits, whereas Coniella fragariae, Neopestalotiopsis iranensis, and Fusarium avenaceum were more frequently associated with crown rot symptoms. In addition, non-pathogenic and antagonistic fungi, such as Clonostachys rosea and Trichoderma, were detected, indicating the diversity of the strawberry plant microbiome. The results confirmed the hypothesis that strawberry samples contain several different pathogens. The study provided new information about pathogenic fungal species occurring on strawberries in Estonia and creates a basis for further plant protection and resistance studies.
Strawberry is an important berry crop whose yield and quality are affected by various fungal diseases. The aim of this study was to identify the most important diseases occurring in Estonian strawberry production fields and to describe the distribution of pathogenic fungi among different plant parts. The hypothesis of the study was that symptomatic samples collected from Estonian production fields contain several different strawberry pathogens. Symptomatic strawberry samples were collected from production fields across Estonia. Fungi were isolated into pure cultures and identified using PCR analysis and DNA sequencing. The analysis revealed both pathogenic and non-pathogenic fungi. The most frequently detected genera were Colletotrichum, Cadophora, Botrytis, and Pilidium. The results showed that different pathogens were associated with different plant parts: Botrytis cinerea occurred mainly on flowers and fruits, whereas Coniella fragariae, Neopestalotiopsis iranensis, and Fusarium avenaceum were more frequently associated with crown rot symptoms. In addition, non-pathogenic and antagonistic fungi, such as Clonostachys rosea and Trichoderma, were detected, indicating the diversity of the strawberry plant microbiome. The results confirmed the hypothesis that strawberry samples contain several different pathogens. The study provided new information about pathogenic fungal species occurring on strawberries in Estonia and creates a basis for further plant protection and resistance studies.
Kirjeldus
Bakalaureusetöö
Aianduse õppekaval
Märksõnad
bakalaureusetööd, hahkhallitus, antraknoos, taimehaigused