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How do belowground organisms influence plant-pollinator interactions?

Journal of Plant Ecology 2015年第1期8卷 1-11页

作者： Nicholas A.Barber nicole l.soper gorden Department of Biological Sciences Northern Illinois UniversityDeKalbIL 60115USA Institute for the Study of the Environment Sustainabilityand EnergyNorthern Illinois UniversityDeKalbIL 60115USA Department of Biology University of Minnesota DuluthDuluthMN 55812USA

Aims The majority of angiosperms are pollinated by animals,and this interaction is of enormous importance in both agricultural and natural *** behavior is influenced by plants’floral traits,and these traits may be modified by interactions with other community *** recent years,knowledge of ecological linkages between above-and belowground organ-isms has grown *** communities are extremely diverse,and when their interactions with plants influence floral characteristics,they have the potential to alter pollinator attrac-tion and visitation,but plant-pollinator interactions have been neglected in studies of the direct and indirect effects of soil organism-root ***,we review these belowground interactions,focusing on the effects of nitrogen-fixing bacteria,arbuscular mycorrhizal fungi and root-feeding herbivores,and their effects on floral traits and ***,we identify gaps in our knowledge of these indirect effects and recommend promising directions and topics that should be addressed by future *** Findings Belowground organisms can influence a wide variety of floral traits that are important mediators of pollinator attraction,including the number and size of flowers and nectar and pollen *** traits that are known to influence pollinators in some plant species,such as floral volatiles,color and nectar composition,have rarely or never been examined in the context of belowground plant *** clear effects on flowers,relatively few studies have measured pollinator responses to belowground *** these indirect effects have been studied,both arbuscular mycorrhi-zal fungi and root herbivores were found to shift pollinator visitation *** on the interaction,these changes may either increase or decrease pollinator ***,we discuss future directions for ecological studies that will more fully integrate below-ground ecology with pollinat

关键词： aboveground-belowground pollinator mycorrhizae herbivore floral traits indirect effects

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