Abstract

Seeds of a number of flowering plant species quickly mucilage after moistening, which indicates certain adaptive advantages of this trait in conditions of natural selection. Seed mucus can enter into various reactions with soil, including pathogenic mycoflora. The aim of the investigation was to establish the response of fungicidal activity of seed mucus in relation to soil fungal pathogens. The seeds of common flax Linum usitatissimum and pathogenic soil fungus Fusarium oxysporum were the objects of study. Observations showed that the mucus, which already formed 2–3 h after moistening flax seeds in Petri dishes with F. oxysporum mycelium, begins to inhibit fungal hyphae. After 1 day, sterile zones with a diameter of 9.4 ± 0.34 mm are formed around the mucous seeds. The extract of flax mucus also has fungicidal properties. The average diameter of the sterile zones after spot application of 0.05 mL flaxseed mucus to the mycelium of the F. oxysporum was 9.65 ± 0.22 mm. Studies have revealed the phenomenon of an earlier undescribed fungicidal activity of polysaccharide flaxseed mucus in relation to the F. oxysporum. The nonspecific fungicidal activity of seed mucus can be used in the breeding of common flax varieties as a new trait of natural protection of germinating seeds.

中文翻译：

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普通亚麻亚麻的肌肉发达多糖的杀菌活性。

摘要

多种开花植物的种子在润湿后迅速粘液化，这表明该性状在自然选择条件下具有一定的适应性优势。种子粘液可与土壤发生各种反应，包括致病性分支菌。该研究的目的是确定种子黏液对土壤真菌病原体的杀真菌活性。常见的亚麻种子亚麻和病原真菌的土壤尖孢镰刀菌是研究的对象。观察结果表明，粘液在2-3个小时后已在含腐皮霉的皮氏培养皿中润湿亚麻籽而形成。菌丝体，开始抑制真菌菌丝。1天后，在粘液种子周围形成直径为9.4±0.34mm的无菌区。亚麻粘液的提取物也具有杀菌作用。将0.05 mL亚麻籽粘液点施于尖孢镰刀菌菌丝体后，无菌区的平均直径为9.65±0.22 mm。研究表明，与亚麻假单胞菌有关的多糖亚麻籽粘液具有较早的未描述的杀真菌活性的现象。种子粘液的非特异性杀真菌活性可用于普通亚麻品种的育种，作为自然保护发芽种子的新特性。