珍珠柴粗提物对13种植物病原菌的抑制活性

以生长速率法测定了珍珠柴7种溶剂粗提物对棉花黄萎病菌V991、棉花黄萎病菌V43-1、棉花枯萎病菌、茄子黄萎病菌、稻曲病病菌、苹果黑星病菌、番茄枯萎病菌、番茄叶霉病菌、黄瓜黑星病菌、西瓜炭疽病菌、芦笋茎枯病菌、扩展青霉和梨黑斑病菌13种植物病原菌的抑制活性。结果表明,不同溶剂粗提物的抑菌活性差异很大,某些溶剂粗提物对个别病菌表现出较强的抑制作用,如水粗提物对棉花黄萎病菌V991,石油醚粗提物对苹果黑星病菌的抑制率分别达100%和91.89%;有的溶剂粗提物的病菌抑制作用较弱,如二氯甲烷粗提物对13种病菌的抑菌率均较低;有些还表现出一定的促进生长作用,如甲醇粗提物对梨黑斑病菌表现为明显的促进生长作用。

Antifungal activity against plant pathogens of the extracts from Salsola passerina

The bioactivitities against 13 species of fungi of seven solvent extracts from Salsola passerina were studied by growth rate method.The results showed that different extracts had dramatically different fungistatic effects on the fungi tested.Some extracts had strong fungistasis on some species of fungi.The inhibition rate of the boiling water extracts achieved 100% on Verticillium dahliae V991.All 7 extracts had the effects on Venturia inaequalis,furthermore,the inhibition rate of the petroleum ether extracts achieved 91.89%.Some had a little fungistasis on some species,such as dichloromethane extracts had lower fungistasis against all 13 fungi.While some had promotional effect on some species of fungi,for example,methanol extracts had an evidently promotional effect on Alternaria kikuchiana growth.