| 枇杷花腐病病原菌的初步研究 |
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| 引用本文： | 肖宇,崔远超,曾祥渝,窦彦霞.枇杷花腐病病原菌的初步研究[J].西南园艺,2006,34(5):9-13. |
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| 作者姓名： | 肖宇 崔远超 曾祥渝 窦彦霞 |
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| 作者单位： | 1. 重庆市九龙坡区果树站,400051
2. 西南大学植物保护学院,重庆,400715 |
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| 摘 要： | 初步研究了枇杷花腐病在不同发病时期及不同组织的病原菌种类及其致病性,结果表明:(1)细菌不是引起花轴维管束变褐的最初病原菌,它是在维管束变褐之后寄生上去,引起花轴表皮腐烂的病原菌。(2)灰葡萄孢菌是在花腐病的中后期腐生上去的,应该不是引起花穗腐烂的关键性致病病原菌。(3)引起枇杷花腐病最初发病的病原可能与2种真菌有关,一种是引起灰斑病的拟盘多毛孢菌(PestalotiaeriobofoliaDesm),另一种是长出粘孢团的真菌(尚待鉴定)。(4)室外接种拟盘多毛孢菌的花穗发生明显花腐症状的比例显著高于对照,该菌可能是引起枇杷花腐的病原菌之一;而接种粘孢团的处理与对照差异不明显,它可能不是引起花穗腐烂的关键性致病病原菌。
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| 关 键 词： | 枇杷 花腐病 病原菌 致病性 真菌 |
| 文章编号： | 1008-1488(2006)05-009-04 |
| 修稿时间： | 2006年5月14日 |
Study on the Pathogen of Rotten Disease of Loquat Flower |
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| Xiao Yu,Cui Yuanchao,Zen Xiangyu,Dou Yanxia.Study on the Pathogen of Rotten Disease of Loquat Flower[J].Southwest Horticulture,2006,34(5):9-13. |
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| Authors: | Xiao Yu Cui Yuanchao Zen Xiangyu Dou Yanxia |
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| Abstract: | (1) Bacterium is not the key pathogen that caused vascular bundle turning brown primarily,because it caused cuticle rotten after the vascular bundle becoming brown. (2) Botrytis cinerea came into being in the middle and later periods of the disease,so it might not be the key pathogen causing the rotten disease. (3) The initial pathogen,which first caused the rotten disease of loquat flower,might be related to Pestalotia eriobofolia (the pathogen of gray speck disease) and another pathogen sporodochia. (4)The two main fungi were inoculated in the experiment. The results showed that flower cluster inoculated with Pestalotia eriobofolia had obvious symptom of rotten flower disease and its proportion are higher than control,so Pestalotia eriobofolia might be one of the pathogens causing the rotten disease of loquat flower. The disposal after sporodochia inoculated are not obvious than the control. So,the pathogen,which can excrete sporodochia,might not be the key pathogen of the rotten disease of flower. |
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| Keywords: | Loquat Rotten disease of flower Pathogen |
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