A biotrophic fungal infection of the great burnet Sanguisorba officinalis indirectly affects caterpillar performance of the endangered scarce large blue butterfly Phengaris teleius

Ewa B.(S)liwi(n)ska; Rafa(l) Martyka; Miros(l)aw Martyka; Mariusz Cicho(n); Piotr Tryjanowski

首页> 中文期刊> 《中国昆虫科学：英文版》 >A biotrophic fungal infection of the great burnet Sanguisorba officinalis indirectly affects caterpillar performance of the endangered scarce large blue butterfly Phengaris teleius

A biotrophic fungal infection of the great burnet Sanguisorba officinalis indirectly affects caterpillar performance of the endangered scarce large blue butterfly Phengaris teleius

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Interactions between ecological communities of herbivores and microbes are commonly mediated by a shared plant.A tripartite interaction between a pathogenic fungus-host plant-herbivorous insect is an example of such mutual influences.In such a system a fungal pathogen commonly has a negative influence on the morphology and biochemistry of the host plant,with consequences for insect herbivore performance.Here we studied whether the biotrophic fungus Podosphaeraferruginea,attacking the great burnet Sanguisorba officinalis,affects caterpillar performance of the endangered scarce large blue butterfly Phengaris teleius.Our results showed that the pathogenic fungus affected the number and size of inflorescences produced by food-plants and,more importantly,had indirect,plant-mediated effects on the abundance,body mass and immune response of caterpillars.Specifically,we found the relationship between caterpillar abundance and variability in inflorescence size on a plant to be positive among healthy food-plants,and negative among infected food-plants.Caterpillars that fed on healthy food-plants were smaller than those that fed on infected food-plants in one studied season,while there was no such difference in the other season.We observed the relationship between caterpillar immune response and the proportion of infected great burnets within a habitat patch to be positive when caterpillars fed on healthy food-plants,and negative when caterpillars fed on infected food-plants.Our results suggest that this biotrophic fungal infection of the great burnet may impose a significant indirect influence on P.teleius caterpillar performance with potential consequences for the population dynamics and structure of this endangered butterfly.

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《中国昆虫科学：英文版》 |2019年第3期|555-568|共14页
作者
Ewa B.(S)liwi(n)ska; Rafa(l) Martyka; Miros(l)aw Martyka; Mariusz Cicho(n); Piotr Tryjanowski;
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作者单位

Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland;

Institute of Nature Conservation, Polish Academy of Sciences, Kraków, Poland;

Institute of Mathematical and Natural Science, State Higher Vocational School in Tarnów, Tarnów, Poland;

Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland;

Institute of Zoology, Pozna(n) University of Life Sciences, Pozna(n), Poland;

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A biotrophic fungal infection of the great burnet Sanguisorba officinalis indirectly affects caterpillar performance of the endangered scarce large blue butterfly Phengaris teleius

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