哈茨木霉与危害七叶树叶片和果实的病原真菌的体外相互作用

Q3 Agricultural and Biological Sciences

Biological Letters Pub Date : 2019-06-01 DOI:10.2478/biolet-2019-0003

K. Pastirčáková

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引用次数: 5

摘要

摘要研究了危害七叶树叶片和果实的3种病原真菌——球形叶斑菌（Phyllosticta sphaeropidea）、卡氏Phomopsis carpschiza和Diaporthe padi——与拮抗真菌哈茨木霉（Trichoderma harzianum）的相互作用，以确定它们在体外的相互影响。测定了在5种营养培养基上培养的菌落的抗菌性。所研究的3个哈齐亚木分离株的拮抗潜力不同。尽管哈茨霉分离株显著抑制了石斑病的生长，但一些再分离株在新鲜培养基上的菌丝生长表明哈茨霉对该物种的拮抗作用不足。测试的木霉分离株对其他病原体表现出更强的拮抗作用，这反映在Phyllosticta sphaeropso idea和Diaporthe padi的过度生长和它们的生长减少上。真菌病原体细胞质的颗粒化和菌丝的裂解是最常见的相互作用效应。

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In vitro interactions between Trichoderma harzianum and pathogenic fungi damaging horse-chestnut (Aesculus hippocastanum) leaves and fruits

Abstract Interactions between 3 pathogenic fungi damaging horse-chestnut (Aesculus hippocastanum) leaves and fruits – Phyllosticta sphaeropsoidea, Phomopsis carposchiza, and Diaporthe padi – and the antagonistic fungus Trichoderma harzianum were studied to determine their mutual influence in vitro. Antibiosis of colonies developing on 5 nutrient media was tested. The 3 studied T. harzianum isolates differed in their antagonistic potential. although T. harzianum isolates significantly inhibited the growth of Phomopsis carposchiza, the mycelium growth of some of the re-isolates on fresh medium indicates an inadequate antagonistic effect of T. harzianum on this species. The tested Trichoderma isolates showed stronger antagonism towards the other pathogens, reflected in overgrowing of Phyllosticta sphaeropso-idea and Diaporthe padi and reducing their growth. Granulation of the cytoplasm and lysis of hyphae of the fungal pathogens were the most frequently observed effects of the interaction.

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来源期刊

Biological Letters Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

自引率

0.00%

发文量

审稿时长

52 weeks

期刊介绍： It covers a wide spectrum of biological disciplines, including animal science and zoology, general biochemistry, botany, and ecology. We also encourage submission of manuscripts related to conservation biology and wildlife management.