Sēņu daudzveidība Japānas krūmcidoniju augļos = Diversity of fungi in Japanese quince fruits
2023
Jakobija, Inta | Bankina, Biruta | Klūga, Alise
In recent years, the area of Japanese quince (Chaenomeles japonica) plantations in Latvia has increased to 500 ha. There are few studies available about the occurrence of fungi, including pathogens, in Japanese quince fruits. This knowledge is necessary to evaluate the necessity and possibilities of plant protection measures against fungal diseases in quince plantations. The aim of the study was to determine the diversity of fungi on Japanese quince fruits in Latvia. Assessments of diseases were performed in eight commercial Japanese quince plantations during the vegetation periods 2017–2019. Pure cultures of fungi were obtained and sorted by morphological features. The most characteristic ones from each group were selected for molecular-genetic analysis carried out in cooperation with the Latvian Biomedical Research and Study Centre. During the research, 202 fungal isolates were obtained and identified at the genus level. A high diversity of fungi, 28 genera, were found in the Japanese quince fruits. The greatest diversity of fungi, 20 genera, was found in fruit spots. Sixteen genera of fungi were isolated from rotted fruits and 10 genera from mummies. The genera Fusarium, Botrytis, and Clonostachys dominated in quince fruits, while Monilinia, Trichoderma, and Alternaria were slightly less frequent but considerable. Further more detailed studies are needed to find out the pathogenicity of obtained fungi. In order to better understand their biological peculiarities, more detailed molecular-genetic analyses should be performed to identify the detected fungal genera at the species level.
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Издатель Latvijas Biozinātņu un tehnoloģiju universitāte
