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Elevated air temperature shifts the interactions between plants and endophytic fungal entomopathogens in an agroecosystem

文献类型： 外文期刊

作者： Sui, Li 1 ; Zhu, Hui 1 ; Xu, Wenjing 1 ; Guo, Qinfeng 4 ; Wang, Ling 1 ; Zhang, Zhengkun 3 ; Li, Qiyun 3 ; Wang, Deli 1 ;

作者机构： 1.Northeast Normal Univ, Inst Grassland Sci, Changchun 130024, Jilin, Peoples R China

2.Minist Educ, Key Lab Vegetat Ecol, Changchun 130024, Jilin, Peoples R China

3.Jilin Acad Agr Sci, Inst Plant Protect, Gongzhuling 136100, Jilin, Peoples R China

4.US Forest Serv, USDA, Eastern Forest Environm Threat Assessment Ctr, Res Triangle Pk, NC 27709 USA

5.Northeast Normal Univ, Sch Environm, Changchun 130117, Jilin, Peoples R China

关键词： Agroecosystem; Beauveria bassiana; Climate warming; Endophytic; Insect pathogen fungi; Maize; Species interactions

期刊名称：FUNGAL ECOLOGY （ 影响因子：3.404； 五年影响因子：4.647 ）

ISSN： 1754-5048

年卷期： 2020 年 47 卷

页码：

收录情况： SCI

摘要： The possible effects of climate change on species interactions remain a very complex and challenging subject in community ecology. Here, we comparatively examine the interactions between maize (Zea mays) and an endophytic fungal entomopathogen (Beauveria bassiana) in a typical agroecosystem under both ambient and elevated air temperatures. We found that under ambient temperature certain key biological characteristics in maize (i.e., height, relative growth rate, biomass, and defense enzymes) and B. bassiana (i.e., conidia yield, germination rate of conidia, and virulence) were positively related to each other. Under elevated air temperature, however, we only detected positive effects of maize on B. bassiana (i.e., conidia yield, germination rate of conidia, and virulence), but little effect of B. bassiana on maize. These observations suggest that elevated air temperature could shift the interactions between plants and the endophytic fungal entomopathogens, possibly even from mutualism to commensalism. Both the nature and strength of species interactions are important for better understanding and predicting structure and stability of ecological communities in agroecosystems under climate change. (C) 2020 Elsevier Ltd and British Mycological Society. All rights reserved.

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