Jakobija Inta, Bankina Biruta, Klūga Alise, Roga Ance, Skinderskis Edmunds, Fridmanis Dāvids
Faculty of Agriculture, Latvia University of Life Sciences and Technologies, Liela Street 2, LV-3001 Jelgava, Latvia.
Institute of Plant Protection Research "Agrihorts", Latvia University of Life Sciences and Technologies, Paula Lejina Street 2, LV-3001 Jelgava, Latvia.
Plants (Basel). 2022 Sep 29;11(19):2572. doi: 10.3390/plants11192572.
In recent years, Japanese quince () plantations in Latvia have increased. Interest in breeding Japanese quince is also known in other European countries and Russia. The occurrence and harmfulness of fungal diseases have become increasingly significant. However, there is a lack of overall information in the literature about the diversity of fungi afflicting . In our study, we aimed to determine the diversity of fungi associated with in Latvia, with the possibility of identifying the fungi that are most characteristically associated with certain parts of the plant. Our research was conducted from 2017 to 2019 in eight Japanese quince plantations in Latvia. Samples of plant parts with disease symptoms were collected. Pure cultures of fungi were obtained and identified using ITS region sequencing. We determined the relative density of identified genera of fungi, which were grouped using hierarchical cluster analysis depending on the plant part from which they were found. Various disease-like symptoms were observed and described. A total of 538 isolates of fungi were obtained that belong to 36 genera and represent different ecological niches. , , , and were the genera most frequently found during our study. The number of identified cases of fungal genera differed depending on the part of the plant from which the fungi were obtained. However, it is not possible to relate a specific genus of fungus to only one certain part of a plant. Further research is needed to clarify the pathogenicity of detected fungi and the composition of species in the detected genera of fungi.
近年来，拉脱维亚的日本海棠（）种植园有所增加。在其他欧洲国家和俄罗斯，对日本海棠育种的兴趣也为人所知。真菌病害的发生和危害日益显著。然而，文献中缺乏关于侵害日本海棠的真菌多样性的全面信息。在我们的研究中，我们旨在确定拉脱维亚与日本海棠相关的真菌多样性，并有可能识别出与植物某些部位最具特征性相关的真菌。我们的研究于2017年至2019年在拉脱维亚的八个日本海棠种植园中进行。采集了有病害症状的植物部位样本。通过ITS区域测序获得并鉴定了真菌的纯培养物。我们确定了已鉴定真菌属的相对密度，并根据它们所来自的植物部位，使用层次聚类分析进行分组。观察并描述了各种类似病害的症状。共获得了538株真菌分离物，它们属于36个属，代表了不同的生态位。在我们的研究中，、、和是最常发现的属。已鉴定的真菌属病例数因真菌所来自的植物部位而异。然而，不可能将某一特定真菌属仅与植物的某一特定部位相关联。需要进一步研究以阐明检测到的真菌的致病性以及检测到的真菌属中的物种组成。
