Kurchenko I N
Mikrobiol Z. 2013 Mar-Apr;75(2):57-66.
A comparative study of polygalacturonase activity of 85 saprophytic, plant pathogenic and endophytic strains of Fusarium poae, Alternaria alternata, Penicillium funiculosum and Mycelia sterilia was conducted. It was established that in general polygalacturonase activity of Mycelia sterilia and P. funiculosum strains was significantly higher than that of A. alternata and F. poae strains. The majority of the studied strains showed a middle level of polygalacturonase activity. High activity was characteristic of only endophytic F. poae, P. funiculosum and Mycelia sterilia strains. The dependence of polygalacturonase activity of the studied strains on their rate of linear growth, cultivation time, as well as species and organs of host plants, which they were isolated from, was not established. The polygalacturonase presence in the dominant and common species of endophytic fungi of the bog plants of Ukrainian Polesie suggests that endophytic microscopic fungi play an important role in the hydrolysis of pectic substances of plant tissues, as well as in migration of mineral elements in wetland ecosystems.
对85株腐生型、植物致病型和内生型的禾谷镰刀菌、链格孢、绳状青霉和无孢菌群进行了多聚半乳糖醛酸酶活性的比较研究。结果表明，总体上无孢菌群和绳状青霉菌株的多聚半乳糖醛酸酶活性显著高于链格孢和禾谷镰刀菌的菌株。大多数被研究的菌株表现出中等水平的多聚半乳糖醛酸酶活性。高活性仅为内生型禾谷镰刀菌、绳状青霉和无孢菌群菌株所特有。未确定所研究菌株的多聚半乳糖醛酸酶活性与其线性生长速率、培养时间以及它们所分离的宿主植物的种类和器官之间的相关性。乌克兰波列西耶沼泽植物内生真菌的优势种和常见种中存在多聚半乳糖醛酸酶，这表明内生微小真菌在植物组织果胶物质的水解以及湿地生态系统中矿质元素的迁移中发挥着重要作用。
