@ARTICLE{TreeBASE2Ref17392,
author = {Christopher Lewis Schardl and Adrian Leuchtmann},
title = {Three new species of Epichlo symbiotic with North American grasses.},
year = {1999},
keywords = {3-tubulin gene, biological species, Clavicipitaceae, host specificity, molecular systematics, Neotyphodium, grass endophytes, symbiosis},
doi = {},
url = {http://www.jstor.org/stable/3761196},
pmid = {},
journal = {Mycologia},
volume = {91},
number = {1},
pages = {95--107},
abstract = {The genus Epichloe sensu stricto includes several mating populations (biological species) of endophytic fungal symbionts of cool season grasses. To date, six Eurasian and one North American morphospecies have been described, and these approximately correspond to six distinct mating populations. Here we describe three additional Epichloe species found in natural symbioses with grasses native to North America. In mating tests the three species were not interfertile with each other or any previously described Epichloe species. Sequences of b-tubulin gene introns, which have been useful for Epichloe phylogenetics, clearly distinguished the three species, isolates of each constituting a well supported clade. The three new species were host specific: Epichloe brachyelytri was naturally associated only with Brachyelytrum erectum, E. elymi only with Elymus species, and E. glyceriae only with Glyceria striata. While most morphological characteristics of E. elymi and E. glyceriae were typical of the genus, the ascus structure of E. brachyelytri was unique among described Epichloe species. Vertical transmission by systemic infection of host seeds was common for E. brachyelytri and E. elymi but never occurred for E. glyceriae. Conversely, E. glyceriae developed stromata on every infected host inflorescence (preventing its maturation), E. elymi produced stromata on some but not all inflorescences, and E. brachyelytri almost never produced stromata. Thus, symbioses of the three new Epichloe species with host grasses span the continuum from antagonistic to commensal or mutualistic.}
}
Citation for Study 344
Citation title:
"Three new species of Epichlo symbiotic with North American grasses.".
This study was previously identified under the legacy study ID S263
(Status: Published).
Citation
Schardl C.L., & Leuchtmann A. 1999. Three new species of Epichlo symbiotic with North American grasses. Mycologia, 91(1): 95-107.
Authors
-
Schardl C.L.
859-218-0730
-
Leuchtmann A.
Abstract
The genus Epichloe sensu stricto includes several mating populations (biological species) of endophytic fungal symbionts of cool season grasses. To date, six Eurasian and one North American morphospecies have been described, and these approximately correspond to six distinct mating populations. Here we describe three additional Epichloe species found in natural symbioses with grasses native to North America. In mating tests the three species were not interfertile with each other or any previously described Epichloe species. Sequences of b-tubulin gene introns, which have been useful for Epichloe phylogenetics, clearly distinguished the three species, isolates of each constituting a well supported clade. The three new species were host specific: Epichloe brachyelytri was naturally associated only with Brachyelytrum erectum, E. elymi only with Elymus species, and E. glyceriae only with Glyceria striata. While most morphological characteristics of E. elymi and E. glyceriae were typical of the genus, the ascus structure of E. brachyelytri was unique among described Epichloe species. Vertical transmission by systemic infection of host seeds was common for E. brachyelytri and E. elymi but never occurred for E. glyceriae. Conversely, E. glyceriae developed stromata on every infected host inflorescence (preventing its maturation), E. elymi produced stromata on some but not all inflorescences, and E. brachyelytri almost never produced stromata. Thus, symbioses of the three new Epichloe species with host grasses span the continuum from antagonistic to commensal or mutualistic.
Keywords
3-tubulin gene, biological species, Clavicipitaceae, host specificity, molecular systematics, Neotyphodium, grass endophytes, symbiosis
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S344
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@ARTICLE{TreeBASE2Ref17392,
author = {Christopher Lewis Schardl and Adrian Leuchtmann},
title = {Three new species of Epichlo symbiotic with North American grasses.},
year = {1999},
keywords = {3-tubulin gene, biological species, Clavicipitaceae, host specificity, molecular systematics, Neotyphodium, grass endophytes, symbiosis},
doi = {},
url = {http://www.jstor.org/stable/3761196},
pmid = {},
journal = {Mycologia},
volume = {91},
number = {1},
pages = {95--107},
abstract = {The genus Epichloe sensu stricto includes several mating populations (biological species) of endophytic fungal symbionts of cool season grasses. To date, six Eurasian and one North American morphospecies have been described, and these approximately correspond to six distinct mating populations. Here we describe three additional Epichloe species found in natural symbioses with grasses native to North America. In mating tests the three species were not interfertile with each other or any previously described Epichloe species. Sequences of b-tubulin gene introns, which have been useful for Epichloe phylogenetics, clearly distinguished the three species, isolates of each constituting a well supported clade. The three new species were host specific: Epichloe brachyelytri was naturally associated only with Brachyelytrum erectum, E. elymi only with Elymus species, and E. glyceriae only with Glyceria striata. While most morphological characteristics of E. elymi and E. glyceriae were typical of the genus, the ascus structure of E. brachyelytri was unique among described Epichloe species. Vertical transmission by systemic infection of host seeds was common for E. brachyelytri and E. elymi but never occurred for E. glyceriae. Conversely, E. glyceriae developed stromata on every infected host inflorescence (preventing its maturation), E. elymi produced stromata on some but not all inflorescences, and E. brachyelytri almost never produced stromata. Thus, symbioses of the three new Epichloe species with host grasses span the continuum from antagonistic to commensal or mutualistic.}
}
- Show RIS reference
TY - JOUR
ID - 17392
AU - Schardl,Christopher Lewis
AU - Leuchtmann,Adrian
T1 - Three new species of Epichlo symbiotic with North American grasses.
PY - 1999
KW - 3-tubulin gene
KW - biological species
KW - Clavicipitaceae
KW - host specificity
KW - molecular systematics
KW - Neotyphodium
KW - grass endophytes
KW - symbiosis
UR - http://www.jstor.org/stable/3761196
N2 - The genus Epichloe sensu stricto includes several mating populations (biological species) of endophytic fungal symbionts of cool season grasses. To date, six Eurasian and one North American morphospecies have been described, and these approximately correspond to six distinct mating populations. Here we describe three additional Epichloe species found in natural symbioses with grasses native to North America. In mating tests the three species were not interfertile with each other or any previously described Epichloe species. Sequences of b-tubulin gene introns, which have been useful for Epichloe phylogenetics, clearly distinguished the three species, isolates of each constituting a well supported clade. The three new species were host specific: Epichloe brachyelytri was naturally associated only with Brachyelytrum erectum, E. elymi only with Elymus species, and E. glyceriae only with Glyceria striata. While most morphological characteristics of E. elymi and E. glyceriae were typical of the genus, the ascus structure of E. brachyelytri was unique among described Epichloe species. Vertical transmission by systemic infection of host seeds was common for E. brachyelytri and E. elymi but never occurred for E. glyceriae. Conversely, E. glyceriae developed stromata on every infected host inflorescence (preventing its maturation), E. elymi produced stromata on some but not all inflorescences, and E. brachyelytri almost never produced stromata. Thus, symbioses of the three new Epichloe species with host grasses span the continuum from antagonistic to commensal or mutualistic.
L3 -
JF - Mycologia
VL - 91
IS - 1
SP - 95
EP - 107
ER -