Molecular Systematics of Clavicipitaceae Supporting Monophyly of Genus Epichloe and Form Genus Ephelis

Kuldau, Gretchen A.; Liu, Jih Shiou; White, James F.; Siegel, Malcolm R.; Schardl, Christopher L.

doi:10.2307/3761037

Cited by 53 publications

(45 citation statements)

References 36 publications

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“…The conidia of all the endophytes isolated from new hosts presented in this paper exceed 4.5 μm in length. Conidia of this size are comparable to the conidia of other hybrid asexual Neotyphodium endophytes (Kuldau et al 1997), suggesting a possible hybrid origin for the new isolates. Based on the diversity detected in the endophytes isolated from the newly reported hosts, an extensive phylogenetic analysis should be conducted in order to establish the genotypic diversity of endophytes in South America and their phylogenetic relationships.…”

Section: Discussionmentioning

confidence: 88%

Diversity and distribution of Neotyphodium-infected grasses in Argentina

et al. 2010

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In the present work, we studied the presence of "epichloë/neotyphodium endophytes" in native grasses from Argentina. An extensive area of this country, representative of several different environments, was studied. Nine new host species of the genera Briza, Bromus and Poa were observed to be infected with asexual seedborne endophytes. Epichloë stromata were not observed on any grass species. The incidence of infection in natural populations was highly variable among host species and among populations of the same host species. Morphological characterization revealed differences among the endophytes of different host species and among endophytes of different populations of the same host species. We also summarize the previous knowledge and present unpublished data on host diversity and distribution of these fungi in Argentina.Our results are discussed and compared with previous studies on endophytes in Argentina. This work supports the hypothesis that sexual species (Epichloë) are not present in the southern hemisphere, and suggests the existence of a high diversity of asexual endophytes in South America.

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Section: Discussionmentioning

confidence: 88%

Diversity and distribution of Neotyphodium-infected grasses in Argentina

et al. 2010

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“…The paraphyly of Cordyceps species and the monophyly of grass-associated genera were also demonstrated based on multilocus (LSU, TEF1, and RPB1) sequences (Chaverri et al 2005). Furthermore, the grass-associated genera possessing Ephelis, Neotyphodium, and Sphacelia anamorphs were separated monophyletically based on analyses of rDNA sequences (Kuldau et al 1997;Sullivan et al 2001;Bischoff et al 2004). These studies support the reliability of our phylogenetic analysis and establish the effectiveness of the ALDH1-1 Exon-3 sequences for analysis among the genera in the Clavicipitaceae.…”

Section: Phylogenetic Studymentioning

confidence: 99%

Phylogenetic study of clavicipitaceous fungi using acetaldehyde dehydrogenase gene sequences

Tanaka

2008

Mycoscience

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“…The genus Ephelis has already been phylogenetically analyzed based on the sequences of rDNA-ITS regions and the mating loci with other Clavicipitaceae fungi 10,[35][36][37] . We elucidated that there existed two types in E. japonica isolates in results of PCR-RFLP.…”

Section: Ephelis Japonica Hennings (Hennings 1904)mentioning

confidence: 99%

Black Choke Disease of Warm Season Grasses Caused by Ephelis japonica in Japan and its Epiphytic Features

Tsukiboshi

Takahashi

Uegaki

et al. 2008

JARQ

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The causal fungus of black choke disease in various C4 warm season grasses was collected from places mainly in Ishigaki Island, the most southern region of Japan. The fungus was found on 19 species of 14 genera of C4-grasses such as Brachiaria, Chloris, Chrysopogon, Cynodon, Digitaria, Echinochloa, Eragrostis, Eriochloa, Imperata, Leptochloa, Miscanthus, Panicum, Paspalum, and Pennisetum, including turfgrasses and forage crops. The fungus colonizes flowering heads and makes them mummified in appearance with the panicles attaching to each other. The color of the mature stromata ranges from grayish-white to black. Leaf surfaces of some grasses are colonized by the fungus, producing white streaks of hyphae. Many colorless, needle-shaped conidia of 10-25 × 0.5-1 µm are produced on infected tissues. The fungus was identified as Ephelis japonica based on the morphologies and molecular characteristics. Epiphytic features of E. japonica were examined using infected and uninfected Paspalum thunbergii clones from which the fungus was eradicated by treatment with a systemic fungicide. Hyphae colonized the surface of leaf primordia only in infected plants, a feature shared with some of the closely related Balansia spp. The potential for utilizing E. japonica to confer insect and disease resistance in turfs and forage crops was discussed.

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Molecular Systematics of Clavicipitaceae Supporting Monophyly of Genus Epichloe and Form Genus Ephelis

Cited by 53 publications

References 36 publications

Diversity and distribution of Neotyphodium-infected grasses in Argentina

Diversity and distribution of Neotyphodium-infected grasses in Argentina

Phylogenetic study of clavicipitaceous fungi using acetaldehyde dehydrogenase gene sequences

Black Choke Disease of Warm Season Grasses Caused by Ephelis japonica in Japan and its Epiphytic Features

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