气候变化领域集成服务门户(CCPortal): Stem-inhabiting fungal communities differ between intact and snapped trees after hurricane Maria in a Puerto Rican tropical dry forest

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DOI	10.1016/j.foreco.2020.118350
	Stem-inhabiting fungal communities differ between intact and snapped trees after hurricane Maria in a Puerto Rican tropical dry forest
	Maillard F.; Andrews E.; Moran M.; Kennedy P.G.; Van Bloem S.J.; Schilling J.S.
发表日期	2020
ISSN	0378-1127
卷号	475
英文摘要	Hurricanes impact forests by damaging trees and altering multiple ecosystem functions. As such, predicting which individuals are likely to be most affected has crucial economic importance as well as conservation value. Tree stem-inhabiting fungal communities, notably rot-causing agents, have been mentioned as a potential factor of tree predisposition to hurricane damage, but this assumption remains poorly explored. To examine this relationship, we sampled the stem wood of intact and damaged trees shortly after Hurricane Maria in a Puerto Rican dry tropical forest in 2017. We categorized samples depending on two types: trees with intact stems and trees in which stems were snapped. We extracted fungal environmental DNA of wood from 40 samples consisting of four different tree species. Fungal community taxonomic and functional richness and composition was assessed using high-throughput DNA metabarcoding. We found that snapped trees harbored significantly higher fungal operational taxonomic unit (OTU) richness than the intact trees and that the composition of the stem-inhabiting fungal communities diverged consistently between intact and snapped trees. On average, snapped trees’ fungal communities were relatively enriched in “other saprotrophs” guild category and depleted in endophytes. Conversely, intact trees had high relative abundances of Clonostachys, a mycoparasitic endophyte, suggesting that endophytic fungi might act as biocontrols in tree stems. Overall, our results support the hypothesis that stem-inhabiting fungal communities could represent a predisposition factor of tree damage caused by hurricanes in tropical dry forests. © 2020 The Authors
英文关键词	Caribbean Island; Predisposition factor; Tree holobiont; Tropical cyclone; Tropical forest
语种	英语
scopus关键词	Conservation; Ecosystems; Fungi; Hurricanes; Tropics; Conservation values; Dry tropical forests; Economic importance; Ecosystem functions; Hurricane damage; Operational taxonomic units; Relative abundance; Tropical dry forest; Forestry; dry forest; ecosystem function; fungus; hurricane; relative abundance; species richness; taxonomy; tree; tropical forest; Conservation; Damage; Ecosystems; Forestry; Fungi; Nucleic Acids; Trees; Tropics; Puerto Rico; Clonostachys; Fungi
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155015
作者单位	Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, United States; Department of Plant & Microbial Biology, University of Minnesota, St. Paul, MN, United States; Department of Ecology, Evolution, and Behavior, University of Minnesota, St. Paul, MN, United States; Baruch Institute of Coastal Ecology and Forest Science, Clemson University, PO Box 596, Georgetown, SC 29442, United States
推荐引用方式 GB/T 7714	Maillard F.,Andrews E.,Moran M.,et al. Stem-inhabiting fungal communities differ between intact and snapped trees after hurricane Maria in a Puerto Rican tropical dry forest[J],2020,475.
APA	Maillard F.,Andrews E.,Moran M.,Kennedy P.G.,Van Bloem S.J.,&Schilling J.S..(2020).Stem-inhabiting fungal communities differ between intact and snapped trees after hurricane Maria in a Puerto Rican tropical dry forest.Forest Ecology and Management,475.
MLA	Maillard F.,et al."Stem-inhabiting fungal communities differ between intact and snapped trees after hurricane Maria in a Puerto Rican tropical dry forest".Forest Ecology and Management 475(2020).