Diversity of secoiridoid glycosides in leaves of UK and Danish ash provide new insight for ash dieback management.
Diversity of secoiridoid glycosides in leaves of UK and Danish ash provide new insight for ash dieback management.
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DOI：
10.1038/s41598-020-76140-z
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发表时间：
2020-11-11
影响因子：
4.6
通讯作者：
Grant M
中科院分区：
文献类型：
--
作者：
Sidda JD;Song L;Parker JL;Studholme DJ;Sambles C;Grant M
塞环烯醚萜苷是油科植物的抗取食抑制剂，最近在丹麦白蜡树中作为潜在的生物标志物被强调，以区分对真菌病白蜡树枯萎病的耐受性和易感性。了解到绿松石螟最近从俄罗斯进入欧洲，并且欧洲正在进行对白蜡病抗性欧洲白蜡病（Fraxinus excelsior）的广泛选择试验，我们对从英国和丹麦取样的白蜡病抗性和易感树木的叶片提取物进行了全面筛选。在这里，我们报告了一个意想不到的多样性，在英国树木和更高水平的赛环烯醚萜苷在英国样本组。虽然塞环烯醚萜苷通常不太可能作为白蜡树枯梢病易感性的可靠标记，但对特定塞环烯醚萜的耐受性和易感组之间存在差异。我们预测，在英国种群中存在的高水平和结构多样性的环烯醚萜可能提供一个强大的反摄食威慑库，以减轻未来的草食威胁，如翡翠灰螟。
Secoiridoid glycosides are anti-feeding deterrents of the Oleaceae family recently highlighted as potential biomarkers in Danish ash trees to differentiate between those tolerant and susceptible to the fungal disease ash dieback. With the knowledge that emerald ash borer has recently entered Europe from Russia, and that extensive selection trials are ongoing in Europe for ash dieback tolerant European ash (Fraxinus excelsior), we undertook comprehensive screening of secoiridoid glycosides in leaf extracts of trees tolerant and susceptible to ash dieback sampled from sites in the UK and Denmark. Here we report an unexpected diversity of secoiridoid glycosides in UK trees and higher levels of secoiridoid glycosides in the UK sample group. While it is unlikely that secoiridoid glycosides generally can serve as reliable markers for ash dieback susceptibility, there are differences between tolerant and susceptible groups for specific secoiridoids. We predict that the high levels—and structural diversity—of secoiridoids present in the UK group may provide a robust reservoir of anti-feeding deterrents to mitigate future herbivore threats such as the Emerald ash borer.
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影响因子：
1.6
作者：
Egan, P;Middleton, P;Sarker, SD
通讯作者：
Sarker, SD
影响因子：
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影响因子：
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作者：
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影响因子：
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影响因子：
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作者：
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Guan, Hua-Shi