| 福建甘薯丛枝病的病原体研究 |
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| 引用本文： | 谢联辉,林奇英,刘万年.福建甘薯丛枝病的病原体研究[J].福建农林大学学报(自然科学版),1984(1). |
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| 作者姓名： | 谢联辉 林奇英 刘万年 |
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| 作者单位： | 福建农学院植物病毒研究室，福建农学院植物病毒研究室，福建农学院植物病毒研究室 |
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| 摘 要： | <正> 甘薯是闽南、闽东南地区仅次于水稻的一个重要粮食作物。十几年来由于检疫不严,甘薯丛枝病几乎遍及我省所有甘薯产区。其中尤以闽南沿海薯区为重。甘薯发病后主蔓短缩,侧蔓丛生,形成典型的丛枝症状,一般早期发病的多不结薯,给甘薯生产造成严重损失。我省甘薯丛枝病的病原,有些研究者据采自闽南东山县的田间病株所作的电镜观察认为,是一种属于马铃薯 Y 病毒组的线状病毒和类菌原体的复合感染。两年来作者采用晋
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NATURE OF THE PATHOGENS OF SWEET POTATO WITCHES' BROOM DISEASE IN FUJIAN |
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| Abstract: | Sweet potato witches' broom is one of the top most dangerous diseases in Fujian province.Typical symptom of the diseases appeared on the healthy seedling through graft-inoculation with diseased stem-eyes.A mass of mycoplasma-like organisms (MLOs)could be seen in the sieveal elements of the phloem tissue of diseased leer under electron microscope.The size of these MLOs were from 100-750 nm in diameter.They showed spherical. ellipsoidal and dumb-bell-like.But these MLOs were not present in the healthy plant.Treatment of oxytetracycline on the infected sweet potato plant resulted in the production of plants free from such a disease.The occurence of sweet potato witches' broom disease in Fujian province was associated with a MLOs but not virus.The electron microscopic scaning and oxytetracycline sensitization test both ascertained the nature of the pathogen. |
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