Exposure to cuticular bacteria can alter host behavior in a funnel-weaving spider  

作　　者：Olivia B.PARKS Krishna S.KOTHAMASU Michael J.ZIEMBA Morgan BENNER Madison CRISTINZIANO Serena KANTZ Daniel LEGER John LI Devanshi PATEL William RABUSE Samantha SUTTON Amandi WILSON Priyanka BAIREDDY Aditi A.KAMAT Mariah J.CALLAS Matthew J.BORGES Marysa N.SCALIA Emily KLENK Gabrielle SCHERER Maria M.MARTINEZ Sarah R.GRUBS Nancy KAUFMANN Jonathan N.PRUITT Carl N.KEISER 

机构地区：[1]Department of Biological Sciences,University of Pittsburgh,Pittsburgh,PA 15260,USA [2]Department of Ecology,Evolution,and Marine Biology,University of California,Santa Barbara,CA 93106,USA [3]Rice University Academy of Fellows,Rice University,Houston,TX 77005,USA [4]Department of BioSciences,Rice University,Houston,TX 77005,USA

出　　处：《Current Zoology》2018年第6期721-726,共6页动物学报（英文版）

摘　　要：Contact with environmental microbes are arguably the most common species interaction in which any animal participates.Studies have noted diverse relationships between hosts and resident microbes,which can have strong consequences for host development,physiology,and behavior. Many of these studies focus specifically on pathogens or beneficial microbes,while the benign microbes,of which the majority of bacteria could be described,are often ignored.Here,we explore the nature of the relationships between the grass spider Agelenopsis pennsylvanica and bacteria collected from their cuticles in situ.First,using culture-based methods,we identified a portion of the cuticular bacterial communities that are naturally associated with these spiders.Then,we topically exposed spiders to a subset of these bacterial monocultures to estimate how bacterial exposure may alter 3 host behavioral traits:boldness,aggressiveness,and activity level.We conducted these behavioral assays 3 times before and 3 times after topical application,and compared the changes observed in each trait with spiders that were exposed to a sterile control treatment.We identified 9 species of bacteria from the cuticles of 36 spiders and exposed groups of 20 spiders to 1 of 4 species of cuticular bacteria.We found that exposure to Dermacoccus nishinomiyaensis and Staphylococcus saprophyticus was associated with a lO-fold decrease in the foraging aggressiveness of spiders toward prey in their web.Since bacterial exposure did not have survival consequences for hosts,these data suggest that interactions with cuticular bacteria,even non- pathogenic bacteria,could alter host behavior.

关 键 词：Agelenopsis pennsylvanica AGGRESSIVENESS ARANEAE cuticular BACTERIA personality 

分 类 号：Q[生物学]