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首页> 外文期刊>Journal of Nematology, with Annual of Applied Nematology >Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusates of Globodera ellingtonae.
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Host status of different potato (Solanum tuberosum) varieties and hatching in root diffusates of Globodera ellingtonae.

机译：不同马铃薯（Solanum tuberosum）品种的寄主状态和格氏bo根扩散中的孵化。

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Globodera ellingtonae was detected in Oregon in 2008. In order to make decisions regarding the regulation of this nematode, knowledge of its biology is required. We determined the host status of a diversity of potato (Solanum tuberosum) varieties in soilbased experiments and identified hatching stimulants in in vitro hatching assays. 'Russet Burbank,' 'Desiree,' 'Modac,' 'Norland,' 'Umatilla,' and 'Yukon Gold' were good hosts (RF >14) for G. ellingtonae. Potato varieties 'Maris Piper,' 'Atlantic,' and 'Satina,' all which contain the Ro1 gene that confers resistance to G. rostochiensis, were not hosts for G. ellingtonae. In in vitro hatching assays, G. ellingtonae hatched readily in the presence of diffusates from potato (PRD) and tomato (Solanum lycopersicum; TRD). Egg hatch occurred in an average of between 87% and 90% of exposed cysts, with an average of between 144 and 164 juveniles emerging per cyst, from PRD- and TRD-treated cysts, respectively. This nematode hatched rapidly in the presence of PRD and TRD, with at least 66% of total hatch occurring by day 3 of exposure. There was no dose-response of egg hatch to concentrations of PRD or TRD ranging from 1:5 to 1:100 diffusate to water. When G. ellingtonae was exposed to root diffusates from 21 different plants, hatch occurred in 0% to 70% of exposed cysts, with an average of between 0 to 27 juveniles emerging per cyst. When root diffusate-exposed cysts were subsequently transferred to PRD to test viability, root diffusates from arugula (Eruca sativa), sudangrass (Sorghum bicolor subsp. drummondii), and common vetch (Vicia sativa) continued to inhibit egg hatch compared with the other root diffusates or water in which hatch occurred readily (60 to 182 juveniles emerging per cyst). Previously known hatching stimulants of G. rostochiensis and G. pallida, sodium metavanadate, sodium orthovanadate, and sodium thiocyanate, stimulated some egg hatch. Although, Globodera ellingtonae hatched readily in PRD and TRD and reproduced on potato, the pathogenicity of this nematode on potato remains to be determined.
机译：俄勒冈州发现了globoderaellingtonae。2008年，为了就该线虫的调控做出决定，需要了解其生物学。我们在基于土壤的实验中确定了马铃薯（Solanum tuberosum）品种多样性的寄主状态，并在体外孵化试验中鉴定了孵化刺激剂。 “ Russet Burbank”，“ Desiree”，“ Modac”，“ Norland”，“ Umatilla”和“ Yukon Gold”是灵芝G. ellingtonae的优良寄主（RF> 14）。马铃薯品种'Maris Piper'，'Atlantic'和'Satina'都含有赋予Rostochiensis耐药性的Ro1基因，但它们并不是ellingtonae的宿主。在体外孵化试验中，在存在马铃薯（PRD）和番茄（Solanum lycopersicum; TRD）扩散物的情况下，灵芝菌容易孵化。卵孵化平均发生在暴露的囊肿的87％至90％之间，每个囊肿平均分别从PRD和TRD处理的囊肿中出现144至164个幼虫。在PRD和TRD存在下，这种线虫会迅速孵化，到暴露的第3天，至少有66％的总孵化发生。卵孵化对水扩散的PRD或TRD的浓度（从1：5到1：100）没有剂量反应。当G.ellingtonae暴露于来自21种不同植物的根扩散物中时，孵化发生在0％至70％的暴露囊肿中，每个囊肿平均出现0至27个幼体。随后，将暴露于根扩散物中的囊肿转移至PRD以测试生存力，与其他根相比，来自芝麻菜（Eruca sativa），苏丹草（Sorghum bicolor subsp。drummondii）和普通紫etch（Vicia sativa）的根扩散物继续抑制卵孵化。容易发生孵化的扩散或水（每个囊肿中出现60至182个幼鱼）。先前已知的罗氏沼虾和帕氏青霉的孵化刺激剂，偏钒酸钠，原钒酸钠和硫氰酸钠刺激了一些卵的孵化。虽然，globodera ellingtonae在PRD和TRD中容易孵化并在马铃薯上繁殖，但该线虫对马铃薯的致病性仍有待确定。

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