Fang Kai, Chen Li-Min, Zhang Han-Bo
School of Ecology and Environmental Science Yunnan University Kunming China.
State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan Yunnan University Kunming China.
Ecol Evol. 2020 Nov 25;11(1):526-535. doi: 10.1002/ece3.7072. eCollection 2021 Jan.
Plant-fungal associations are frequently key drivers of plant invasion success. Foliar fungi can benefit their invasive hosts by enhancing growth promotion, disease resistance and environmental stress tolerance. However, the roles of foliar fungi may vary when a given invasive plant faces different stresses. In this study, we designed three independent experiments to evaluate the effects of a foliar fungus, sp., on the growth performance of the invasive plant under different soil conditions, as well as the responses of to the foliar fungal pathogen and to herbivory. We found that the soil type was the most influential factor for the growth of . The role of the foliar fungus sp. varied in the different soil types but generally adversely affected leaf development in . sp. may be a weak latent foliar pathogen that can enhance the pathogenicity of on leaves of and marginally reduce signs of herbivory by natural insects in the wild on seedlings. In general, the benefits of the foliar fungus to the fitness of are not significant in the context of this experimental design. However, our data highlight the need to consider both aboveground and belowground biota in different soil habitats when evaluating the effects of foliar fungi.
植物与真菌的关联常常是植物入侵成功的关键驱动因素。叶部真菌可通过促进生长、增强抗病性和提高环境胁迫耐受性来使其入侵宿主受益。然而，当特定的入侵植物面临不同胁迫时，叶部真菌的作用可能会有所不同。在本研究中，我们设计了三个独立实验，以评估一种叶部真菌——[真菌名称]对入侵植物[植物名称]在不同土壤条件下生长表现的影响，以及[植物名称]对叶部真菌病原体和食草作用的反应。我们发现土壤类型是对[植物名称]生长最具影响力的因素。叶部真菌[真菌名称]在不同土壤类型中的作用各不相同，但总体上对[植物名称]的叶片发育有不利影响。[真菌名称]可能是一种弱潜伏性叶部病原体，它可增强[另一种病原体名称]对[植物名称]叶片的致病性，并略微减少野外自然昆虫对[植物名称]幼苗的食草迹象。总体而言，在本实验设计背景下，叶部真菌[真菌名称]对[植物名称]适合度的益处并不显著。然而，我们的数据强调在评估叶部真菌的影响时，需要考虑不同土壤生境中的地上和地下生物群。
