Effects of Bacteria Associated with Pine Wood Nematode (Bursaphelenchus xylophilus) on Development and Egg Production of the Nematode
Effects of Bacteria Associated with Pine Wood Nematode (Bursaphelenchus xylophilus) on Development and Egg Production of the Nematode
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DOI：
10.1111/j.1439-0434.2006.01188.x
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发表时间：
2007
影响因子：
1.5
通讯作者：
B. Zhao;Y. Liu;F. Lin
中科院分区：
文献类型：
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作者：
B. Zhao;Y. Liu;F. Lin
我们测试了松材线虫 (PWN)、松材线虫 (Bursaphelenchus xylophilus) 表面携带的四种细菌菌株对卵孵化、发育率和产蛋量的影响。菌株GcM5-1A（荧光假单胞菌）和ZpB1-2A（恶臭假单胞菌）是强植物毒素产生者，而菌株JnB1B（泛菌属）和AcB1C（解糖消化链球菌）不产生植物毒素。没有任何菌株对卵孵化有任何影响。 GcM5-1A和ZpB1-2A促进雄性和雌性PWN的产卵、发育速度、体长和直径生长，而JnB1B和AcB1C对线虫没有这种影响。事实上，后两种菌株完全抑制了线虫的产卵。结果表明，GcM5-1A 和 ZpB1-2A 可以为 PWN 提供发育和产蛋所需的食物和/或必需营养素。这些结果为我们之前发现的 PWN 与该线虫携带的某些细菌菌株之间的互利共生关系提供了进一步的证据 (Zhao et al., 2003, 2005)。
We tested the effects of four bacterial strains carried on the surface of the pine wood nematode (PWN), Bursaphelenchus xylophilus, on egg hatch, development rate and egg production. Strains GcM5-1A (Pseudomonas fluorescens) and ZpB1-2A (P. putida), were strong phytotoxin producers, while strains JnB1B (Pantoea sp.) and AcB1C (Peptostreptococcus asaccharalyticus) did not produce phytotoxins. None of the strains had any effect on egg hatch. GcM5-1A and ZpB1-2A promoted egg production, developmental rate, body length and diameter growth in both male and female PWN, whereas JnB1B and AcB1C had no such effects on the nematode. Indeed, the latter two strains completely inhibited egg production of the nematode. The results suggest that GcM5-1A and ZpB1-2A may provide PWN with food and/or essential nutrients for development and egg production. These results provide further evidence for our previous finding of a mutualistic symbiosis between the PWN and certain strains of bacteria carried by this nematode (Zhao et al., 2003, 2005).