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首页> 外文期刊>Agricultural and Forest Entomology >Effects of grafting on host plant resistance in ash (Fraxinus spp.) to emerald ash borer (Agrilus planipennis Fairmaire)
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Effects of grafting on host plant resistance in ash (Fraxinus spp.) to emerald ash borer (Agrilus planipennis Fairmaire)

机译：煤灰液（Fraxinus SPP中的宿主植物抗性对翡翠灰螟（Agrilus Planipennis Fairmaire）的影响

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摘要

The invasive emerald ash borer (EAB) (Agrilus planipennis Fairmaire Coleoptera: Buprestidae) is a phloem-boring pest from Asia that has killed hundreds of millions of North American ash trees (Fraxinus spp.). Propagation of trees resistant to EAB must be explored as a tool to maintain the North American ash resource. Interactions between the root and shoot of a tree may be critical to its ability to resist attack by insects and pathogens because many secondary metabolites critical to plant defence are synthesized in the roots. In the present study, we determined the extent to which grafting susceptible green ash (Fraxinus pennsylvanica Marshall) and resistant Manchurian ash (Fraxinus mandshurica Rupr.) affects EAB resistance in ash trees. We measured adult EAB survivorship, herbivory, fecundity and morphological tree characteristics on grafted and nongrafted green and Manchurian ash. Among grafted trees, beetles caged on grafted green ash lived four days longer and laid at least three times more eggs than beetles caged on trees with a Manchurian ash scion or rootstock. Herbivory was unaffected by graft combination. Our findings suggest that grafted trees with Manchurian ash rootstocks or scions will be more resistant to EAB than nongrafted green ash trees.
机译：侵入式翡翠灰烬（EAB）（Agrilus Planipennis Fairmaire Coleoptera：Buprestidae）是来自亚洲的韧皮虫，这已经造成了数亿北美灰树（Fraxinus SPP）。必须探索树木对EAB的繁殖作为维护北美灰度资源的工具。树的根部和芽之间的相互作用对于抗昆虫和病原体的攻击能力至关重要，因为许多对植物防御关键的次级代谢产物在根中被合成。在本研究中，我们确定了接枝易感绿色灰（Fraxinus宾夕法尼亚州马歇尔）和抗性满洲灰（Fraxinus Mandshurica Rupr。）的程度影响了灰树丛中的EAB抗性。我们在接枝和非移植的绿色和满洲灰体上测量了成人EAB生存，草食物，繁殖力和形态树特征。在接枝的树木中，甲虫在嫁接的绿色灰烬中笼养了四天时间，至少比甲虫在树木上笼养到与砧木的树木上的鸡蛋比鸡蛋相当更多的鸡蛋。草食病不受移植组合的影响。我们的研究结果表明，带有满洲灰砧木或间隙的嫁接树比非移植的绿色灰树更抗冲。

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