FN Archimer Export Format
PT J
TI A test of community assembly rules using foliar endophytes from a tropical forest canopy
BT 
AF Donald, Julian
   Roy, Mélanie
   Suescun, Uxue
   Iribar, Amaia
   Manzi, Sophie
   Péllissier, Léonie
   Gaucher, Philippe
   Chave, Jérôme
AS 1:1;2:1;3:1;4:1;5:1;6:2;7:3;8:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Université Toulouse 3 Paul Sabatier, CNRS IRD, UMR 5174 Evolution et Diversité Biologique (EDB) 118 route de NarbonneF‐31062 Toulouse , France
   School of Pharmaceutical Sciences EPGL, University of Geneva, University of Lausanne Rue Michel Servet 1CH‐1211Geneva , Switzerland
   CNRS, UMRS LEEISA, Université de Guyane, Cayenne, French Guiana
C2 UNIV TOULOUSE, FRANCE
   UNIV GENEVA, SWITZERLAND
   CNRS, FRANCE
UM LEEISA
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 6.256
TC 15
UR https://archimer.ifremer.fr/doc/00606/71808/70296.pdf
LA English
DT Article
DE ;bacteria;distribution;French Guiana;fungi;metabarcoding;plant-pathogen interactions;rainforest
AB 1.Community assembly theory assumes that ecological communities are spatially delimited into patches. Within these patches, coexistence results from environmental filtering, competition, and immigration. Truly delineated communities exist in laboratory studies of microbial cultures in Petri dishes, yet empirical tests conducted in continuous environments often use patches defined by convention as opposed to realised boundaries. 2.Here we perform a test of ecological community assembly rules using foliar endophyte communities from a tropical rainforest, where leaves are considered as patches for both fungal and bacterial communities. We determined the diversity of fungal and bacterial endophytes using environmental DNA sequencing of 365 top‐canopy leaves, collected from 38 host trees belonging to 22 different species across a 4‐hectare research plot. Three leaves were collected from three or more branches within each tree crown. We tested the effect of host tree species and their level of phylogenetic relatedness on community composition as well as the contribution of geographic distance between leaves to endophyte community diversity. 3.Endophyte diversity significantly differed across host tree species, as did community composition. Within certain endophytic orders (Xylariales, Rhizobiales) species assemblages significantly differed across host tree species, but this trend was weaker or non‐existent in other orders known to contain pathogens and saprotrophs (Polyporales, Solirubrobacterales). Phylogenetically related host tree species displayed more similar endophyte communities than expected by chance, but geographically close trees did not. Consistent with the finding of host‐specificity, nearby leaves tended to host more similar communities than distantly positioned ones. 4.These findings demonstrate that foliar endophytes are structured by dispersal across small spatial scales, but at the scale of the canopy they display patterns of neutral filtering, with only a small part of variation described by host tree differences. Endophyte communities thus act as a model system in evoking the rules predicted by theoretical community ecology. 
PY 2020
PD JUN
SO Journal Of Ecology
SN 0022-0477
PU Wiley
VL 108
IS 4
UT 000510796300001
BP 1605
EP 1616
DI 10.1111/1365-2745.13344
ID 71808
ER

EF