Background:More than a decade of fire suppression has changed the structure of fire-adapted shrubland ecosystems in Spain’s National Parks,which are now at extreme risk of uncontrolled wildfires.Prescribed burning ca...Background:More than a decade of fire suppression has changed the structure of fire-adapted shrubland ecosystems in Spain’s National Parks,which are now at extreme risk of uncontrolled wildfires.Prescribed burning can mitigate the risk of wildfires by reducing the fuel load but prescribed burning may also alter the soil properties and reduce microbial and fungal activity,causing changes in the availability of nutrients deep in the soil layer.Although fungal communities are a vital part of post-fire restoration,some fire effects remain unclear.To examine the short-term effects of prescribed burning on soil fungal communities in Doñana Biological Reserve(SW Spain),we collected soil samples pre-burn and 1 day,6 and 12 months post-burn from burned plots to perform physicochemical and metabarcode DNA analyses.Results:Prescribed burning had no significant effect on the total fungal operational taxonomic unit richness and abundance.However,changes in soil pH,nitrogen and potassium content post-burn affected fungal community composition.Small non-significant changes in pH and phosphorous affected the composition of ectomycorrhizal fungi.Conclusions:The ectomycorrhizal fungal community appears to be resilient to the effects of low-to moderate-intensity fires and saprotrophic taxa may benefit from this kind of fire.This finding revealed that prescribed burning is a potentially valuable management tool for reducing fire hazards in shrublands that has little effect on the total richness and abundance of fungal communities.展开更多
腰果是引起人们过敏的主要食物之一。作者采用生物信息学方法,通过Pubmed网络服务器、生物信息分析软件SOPMA、swiss-model网络服务器、DNAStar生物分析软件等对腰果主要过敏原Ana o 2的结构和抗原表位进行预测,分析Ana o 2蛋白的抗原...腰果是引起人们过敏的主要食物之一。作者采用生物信息学方法,通过Pubmed网络服务器、生物信息分析软件SOPMA、swiss-model网络服务器、DNAStar生物分析软件等对腰果主要过敏原Ana o 2的结构和抗原表位进行预测,分析Ana o 2蛋白的抗原表位可能是108-111,181-186,217-218,234-238,244-255,283-287。这为腰果过敏原的进一步研究提供理论参考,并对开发低过敏腰果制品提供帮助。展开更多
基金Spanish R&D projects MYCOINFOR(Mycosilviculture Applied to Forest Fire Prevention in Mediterranean SystemsPID2019-105188RB-I00)+4 种基金VIS4FIRE(Comprehensive vulnerability of forest systems to fire:implications for forest management toolsRTA2017-00042-C05-01)Interreg-POCTEP CILIFO(Iberian Centre for Research and Forest Firefighting0753-CILIFO-5-E)financed by European Social Fund“NextGenerationEU”through a grant“Margarita Salas”awarded to Juncal Espinosa into the project GFIRE。
文摘Background:More than a decade of fire suppression has changed the structure of fire-adapted shrubland ecosystems in Spain’s National Parks,which are now at extreme risk of uncontrolled wildfires.Prescribed burning can mitigate the risk of wildfires by reducing the fuel load but prescribed burning may also alter the soil properties and reduce microbial and fungal activity,causing changes in the availability of nutrients deep in the soil layer.Although fungal communities are a vital part of post-fire restoration,some fire effects remain unclear.To examine the short-term effects of prescribed burning on soil fungal communities in Doñana Biological Reserve(SW Spain),we collected soil samples pre-burn and 1 day,6 and 12 months post-burn from burned plots to perform physicochemical and metabarcode DNA analyses.Results:Prescribed burning had no significant effect on the total fungal operational taxonomic unit richness and abundance.However,changes in soil pH,nitrogen and potassium content post-burn affected fungal community composition.Small non-significant changes in pH and phosphorous affected the composition of ectomycorrhizal fungi.Conclusions:The ectomycorrhizal fungal community appears to be resilient to the effects of low-to moderate-intensity fires and saprotrophic taxa may benefit from this kind of fire.This finding revealed that prescribed burning is a potentially valuable management tool for reducing fire hazards in shrublands that has little effect on the total richness and abundance of fungal communities.
基金国家自然科学基金项目(30871752,30570421)The International Science and Technology(ISAT)Linkages Fund,Royal Soci-ety of New Zealand(ISATB09-33)+1 种基金广东省科技重点专项(2003A3080502)教育部留学回国人员科研启动基金资助项目
文摘腰果是引起人们过敏的主要食物之一。作者采用生物信息学方法,通过Pubmed网络服务器、生物信息分析软件SOPMA、swiss-model网络服务器、DNAStar生物分析软件等对腰果主要过敏原Ana o 2的结构和抗原表位进行预测,分析Ana o 2蛋白的抗原表位可能是108-111,181-186,217-218,234-238,244-255,283-287。这为腰果过敏原的进一步研究提供理论参考,并对开发低过敏腰果制品提供帮助。
