Host and geographic structure of endophytic and endolichenic fungi at a continental scale

Jana M. U'Ren, François Lutzoni, Jolanta Miadlikowska, Alexander D. Laetsch, A. Elizabeth Arnold

Research output: Contribution to journalArticle

165 Citations (Scopus)

Abstract

Premise of the study: Endophytic and endolichenic fungi occur in healthy tissues of plants and lichens, respectively, playing potentially important roles in the ecology and evolution of their hosts. However, previous sampling has not comprehensively evaluated the biotic, biogeographic, and abiotic factors that structure their communities. Methods: Using molecular data we examined the diversity, composition, and distributions of 4154 endophytic and endolichenic Ascomycota cultured from replicate surveys of ca. 20 plant and lichen species in each of five North American sites (Madrean coniferous forest, Arizona; montane semideciduous forest, North Carolina; scrub forest, Florida; Beringian tundra and forest, western Alaska; subalpine tundra, eastern central Alaska). Key results: Endolichenic fungi were more abundant and diverse per host species than endophytes, but communities of endophytes were more diverse overall, reflecting high diversity in mosses and lycophytes. Endophytes of vascular plants were largely distinct from fungal communities that inhabit mosses and lichens. Fungi from closely related hosts from different regions were similar in higher taxonomy, but differed at shallow taxonomic levels. These differences reflected climate factors more strongly than geographic distance alone. Conclusions: Our study provides a first evaluation of endophytic and endolichenic fungal associations with their hosts at a continental scale. Both plants and lichens harbor abundant and diverse fungal communities whose incidence, diversity, and composition reflect the interplay of climatic patterns, geographic separation, host type, and host lineage. Although culture-free methods will inform future work, our study sets the stage for empirical assessments of ecological specificity, metabolic capability, and comparative genomics.

Original languageEnglish (US)
Pages (from-to)898-914
Number of pages17
JournalAmerican Journal of Botany
Volume99
Issue number5
DOIs
StatePublished - May 1 2012

Fingerprint

Lichens
Endophytes
Fungi
fungus
Bryophyta
lichen
lichens
fungi
endophyte
endophytes
fungal communities
tundra
moss
Ascomycota
Personal Autonomy
mosses and liverworts
Genomics
Ecology
Climate
Blood Vessels

Keywords

  • Ascomycota
  • Diversity
  • Endolichenic fungi
  • Endophytic fungi
  • Lichens
  • Plant-fungal symbioses
  • Symbiotrophs

ASJC Scopus subject areas

  • Plant Science
  • Ecology, Evolution, Behavior and Systematics
  • Genetics

Cite this

Host and geographic structure of endophytic and endolichenic fungi at a continental scale. / U'Ren, Jana M.; Lutzoni, François; Miadlikowska, Jolanta; Laetsch, Alexander D.; Elizabeth Arnold, A.

In: American Journal of Botany, Vol. 99, No. 5, 01.05.2012, p. 898-914.

Research output: Contribution to journalArticle

U'Ren, Jana M. ; Lutzoni, François ; Miadlikowska, Jolanta ; Laetsch, Alexander D. ; Elizabeth Arnold, A. / Host and geographic structure of endophytic and endolichenic fungi at a continental scale. In: American Journal of Botany. 2012 ; Vol. 99, No. 5. pp. 898-914.
@article{2abd3fc5ae434e578ecdef0f418def94,
title = "Host and geographic structure of endophytic and endolichenic fungi at a continental scale",
abstract = "Premise of the study: Endophytic and endolichenic fungi occur in healthy tissues of plants and lichens, respectively, playing potentially important roles in the ecology and evolution of their hosts. However, previous sampling has not comprehensively evaluated the biotic, biogeographic, and abiotic factors that structure their communities. Methods: Using molecular data we examined the diversity, composition, and distributions of 4154 endophytic and endolichenic Ascomycota cultured from replicate surveys of ca. 20 plant and lichen species in each of five North American sites (Madrean coniferous forest, Arizona; montane semideciduous forest, North Carolina; scrub forest, Florida; Beringian tundra and forest, western Alaska; subalpine tundra, eastern central Alaska). Key results: Endolichenic fungi were more abundant and diverse per host species than endophytes, but communities of endophytes were more diverse overall, reflecting high diversity in mosses and lycophytes. Endophytes of vascular plants were largely distinct from fungal communities that inhabit mosses and lichens. Fungi from closely related hosts from different regions were similar in higher taxonomy, but differed at shallow taxonomic levels. These differences reflected climate factors more strongly than geographic distance alone. Conclusions: Our study provides a first evaluation of endophytic and endolichenic fungal associations with their hosts at a continental scale. Both plants and lichens harbor abundant and diverse fungal communities whose incidence, diversity, and composition reflect the interplay of climatic patterns, geographic separation, host type, and host lineage. Although culture-free methods will inform future work, our study sets the stage for empirical assessments of ecological specificity, metabolic capability, and comparative genomics.",
keywords = "Ascomycota, Diversity, Endolichenic fungi, Endophytic fungi, Lichens, Plant-fungal symbioses, Symbiotrophs",
author = "U'Ren, {Jana M.} and Fran{\cc}ois Lutzoni and Jolanta Miadlikowska and Laetsch, {Alexander D.} and {Elizabeth Arnold}, A.",
year = "2012",
month = "5",
day = "1",
doi = "10.3732/ajb.1100459",
language = "English (US)",
volume = "99",
pages = "898--914",
journal = "American Journal of Botany",
issn = "0002-9122",
publisher = "Botanical Society of America Inc.",
number = "5",

}

TY - JOUR

T1 - Host and geographic structure of endophytic and endolichenic fungi at a continental scale

AU - U'Ren, Jana M.

AU - Lutzoni, François

AU - Miadlikowska, Jolanta

AU - Laetsch, Alexander D.

AU - Elizabeth Arnold, A.

PY - 2012/5/1

Y1 - 2012/5/1

N2 - Premise of the study: Endophytic and endolichenic fungi occur in healthy tissues of plants and lichens, respectively, playing potentially important roles in the ecology and evolution of their hosts. However, previous sampling has not comprehensively evaluated the biotic, biogeographic, and abiotic factors that structure their communities. Methods: Using molecular data we examined the diversity, composition, and distributions of 4154 endophytic and endolichenic Ascomycota cultured from replicate surveys of ca. 20 plant and lichen species in each of five North American sites (Madrean coniferous forest, Arizona; montane semideciduous forest, North Carolina; scrub forest, Florida; Beringian tundra and forest, western Alaska; subalpine tundra, eastern central Alaska). Key results: Endolichenic fungi were more abundant and diverse per host species than endophytes, but communities of endophytes were more diverse overall, reflecting high diversity in mosses and lycophytes. Endophytes of vascular plants were largely distinct from fungal communities that inhabit mosses and lichens. Fungi from closely related hosts from different regions were similar in higher taxonomy, but differed at shallow taxonomic levels. These differences reflected climate factors more strongly than geographic distance alone. Conclusions: Our study provides a first evaluation of endophytic and endolichenic fungal associations with their hosts at a continental scale. Both plants and lichens harbor abundant and diverse fungal communities whose incidence, diversity, and composition reflect the interplay of climatic patterns, geographic separation, host type, and host lineage. Although culture-free methods will inform future work, our study sets the stage for empirical assessments of ecological specificity, metabolic capability, and comparative genomics.

AB - Premise of the study: Endophytic and endolichenic fungi occur in healthy tissues of plants and lichens, respectively, playing potentially important roles in the ecology and evolution of their hosts. However, previous sampling has not comprehensively evaluated the biotic, biogeographic, and abiotic factors that structure their communities. Methods: Using molecular data we examined the diversity, composition, and distributions of 4154 endophytic and endolichenic Ascomycota cultured from replicate surveys of ca. 20 plant and lichen species in each of five North American sites (Madrean coniferous forest, Arizona; montane semideciduous forest, North Carolina; scrub forest, Florida; Beringian tundra and forest, western Alaska; subalpine tundra, eastern central Alaska). Key results: Endolichenic fungi were more abundant and diverse per host species than endophytes, but communities of endophytes were more diverse overall, reflecting high diversity in mosses and lycophytes. Endophytes of vascular plants were largely distinct from fungal communities that inhabit mosses and lichens. Fungi from closely related hosts from different regions were similar in higher taxonomy, but differed at shallow taxonomic levels. These differences reflected climate factors more strongly than geographic distance alone. Conclusions: Our study provides a first evaluation of endophytic and endolichenic fungal associations with their hosts at a continental scale. Both plants and lichens harbor abundant and diverse fungal communities whose incidence, diversity, and composition reflect the interplay of climatic patterns, geographic separation, host type, and host lineage. Although culture-free methods will inform future work, our study sets the stage for empirical assessments of ecological specificity, metabolic capability, and comparative genomics.

KW - Ascomycota

KW - Diversity

KW - Endolichenic fungi

KW - Endophytic fungi

KW - Lichens

KW - Plant-fungal symbioses

KW - Symbiotrophs

UR - http://www.scopus.com/inward/record.url?scp=84860550454&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84860550454&partnerID=8YFLogxK

U2 - 10.3732/ajb.1100459

DO - 10.3732/ajb.1100459

M3 - Article

C2 - 22539507

AN - SCOPUS:84860550454

VL - 99

SP - 898

EP - 914

JO - American Journal of Botany

JF - American Journal of Botany

SN - 0002-9122

IS - 5

ER -