scholarly journals Foliar fungal endophyte community structure is independent of phylogenetic relatedness in an Asteraceae common garden

2020 ◽  
Vol 10 (24) ◽  
pp. 13895-13912
Author(s):  
Briana K. Whitaker ◽  
Natalie Christian ◽  
Qing Chai ◽  
Keith Clay
Keyword(s):  
Community Structure ◽  
Common Garden ◽  
Fungal Endophyte ◽  
Phylogenetic Relatedness ◽  
Endophyte Community

scholarly journals Common garden experiments disentangle plant genetic and environmental contributions to ectomycorrhizal fungal community structure

2018 ◽  
Vol 221 (1) ◽  
pp. 493-502 ◽  
Author(s):  
Adair Patterson ◽  
Lluvia Flores-Rentería ◽  
Amy Whipple ◽  
Thomas Whitham ◽  
Catherine Gehring
Keyword(s):  
Community Structure ◽  
Fungal Community ◽  
Common Garden ◽  
Fungal Community Structure ◽  
Ectomycorrhizal Fungal Community ◽  
Common Garden Experiments

scholarly journals Evidence for alteration of fungal endophyte community assembly by host defense compounds

2009 ◽  
Vol 182 (1) ◽  
pp. 229-238 ◽  
Author(s):  
Megan Saunders ◽  
Linda Myra Kohn
Keyword(s):  
Host Defense ◽  
Community Assembly ◽  
Fungal Endophyte ◽  
Defense Compounds ◽  
Endophyte Community

Comparison of fungal endophyte communities in the invasive panicoid grass Hyparrhenia hirta and the native grass Bothriochloa macra

2007 ◽  
Vol 55 (2) ◽  
pp. 178 ◽  
Author(s):  
Ian R. White ◽  
David Backhouse
Keyword(s):  
Community Structure ◽  
Native Species ◽  
Fungal Endophytes ◽  
Diversity Indices ◽  
Fungal Endophyte ◽  
Plant Interactions ◽  
Similar Frequency ◽  
Degree Of Dominance ◽  
Significant Difference ◽  
Stems And Leaves

Communities of fungal endophytes from roots, stems and leaves of the introduced grass Hyparrhenia hirta (Coolatai grass) and the native species Bothriochloa macra (redgrass) were compared at two sites to identify characteristics that may be associated with invasiveness of H. hirta. The most frequently isolated fungi from both hosts were species of Nigrospora, Alternaria, Cladosporium, Phoma, Epicoccum, Fusarium and Periconia. Most of these occurred at a similar frequency in the two hosts, although Nigrospora sphaerica was much more frequently isolated from H. hirta at both sites. There was little support for the hypothesis that the introduced species (H. hirta) would have a less diverse endophyte community than the native species. There was a greater degree of dominance by the most frequent species in communities from H. hirta than from B. macra, leading to lower diversity indices, but no significant difference in species richness. Cluster analysis of the endophyte communities suggested that host had a greater influence than site on community structure, and that this was expressed mostly in the relative frequency of fungi isolated from stems and leaves, with very similar fungal communities present in the roots of both species at both sites. Analysis of co-occurrence showed no evidence that competition among fungi affected community structure within individual plants. The dominance of N. sphaerica in H. hirta was therefore due to fungus–plant interactions rather than fungus–fungus interactions. Interactions with N. sphaerica could potentially affect the population ecology of H. hirta.

The enhancement of invasion ability of an annual grass by its fungal endophyte depends on recipient community structure

2016 ◽  
Vol 18 (7) ◽  
pp. 1853-1865 ◽  
Author(s):  
Cecilia Casas ◽  
Pedro E. Gundel ◽  
María Semmartin ◽  
Hans Schnyder ◽  
Marina Omacini
Keyword(s):  
Community Structure ◽  
Fungal Endophyte ◽  
Annual Grass

Effects of host plant environment and Ustilago maydis infection on the fungal endophyte community of maize (Zea mays)

2008 ◽  
Vol 178 (1) ◽  
pp. 147-156 ◽  
Author(s):  
Jean J. Pan ◽  
Andrew M. Baumgarten ◽  
Georgiana May
Keyword(s):  
Zea Mays ◽  
Host Plant ◽  
Ustilago Maydis ◽  
Fungal Endophyte ◽  
Plant Environment ◽  
Endophyte Community

Geographic Survey of Fungal Endophyte Community Composition in Leaves of Coastal Redwood

Mycologia ◽  
1993 ◽  
Vol 85 (2) ◽  
pp. 149 ◽  
Author(s):  
Jeanette L. Rollinger ◽  
Jean H. Langenheim
Keyword(s):  
Community Composition ◽  
Fungal Endophyte ◽  
Endophyte Community

IMPACTS OF PHYLOGENETIC DILUTION AND CONCENTRATION EFFECTS ON SPECIES DIVERSITY AND DISTRIBUTION PATTERNS

2017 ◽  
Vol 25 (01) ◽  
pp. 71-81
Author(s):  
YOUHUA CHEN
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Relative Abundance ◽  
Related Species ◽  
Dilution Effect ◽  
Distribution Patterns ◽  
Distinct Species ◽  
Closely Related Species ◽  
Phylogenetic Relatedness ◽  
Phylogenetic Community Structure

In theoretical ecology and community ecology, it is still unclear how phylogenetic community structure and species distributions are linked together. In this paper, a neutral model for evaluating phylogenetic constraints on species diversity and distribution patterns is developed to address these issues. To accomplish this, temporal species distribution and diversity patterns are evaluated and simulated by considering the impact of phylogenetic relatedness of species in a lattice landscape with square grids. A continuous patch for the resultant distributional range map of a species is defined as a group of grids in which the interior grids are adjacent to each other while the edge grids of the patch are isolated from other remaining grids in the range map. The adjacency or isolation of a grid with respect to another grid follows the von Neumann neighborhood criterion. The hypothesis tested is: phylogenetically closely related species tend to avoid each other (phylogenetic dilution), which produces a phylogenetic overdispersion pattern. In this case, all species have similar species abundances and distribution-patch size patterns. In contrast, if closely related species tend to associate together (phylogenetic concentration), a phylogenetic clustering pattern emerges: phylogenetically distinct species tend to have higher abundances and more large distribution patches. Using simulations, this paper presents results which demonstrate the reverse phenomenon: if it is assumed that phylogenetic relatedness of species is modeled as a dilution effect, the resultant distributional maps for evolutionarily distinct species present significantly increased numbers of continuous large patches. An evolutionarily distinct clade tends to have significantly higher relative abundance than other clades in all simulations. It was also found that if phylogenetic relatedness of species is modeled as a concentration effect, the simulated distributional map of each species would present a similar percentage of large patches for both evolutionarily unique and common clades for many cases when the community size is large enough. However, being similar to dilution effect, the resultant species relative abundance for evolutionarily unique clade is significantly higher than that for evolutionarily common clade. In conclusion, evolutionary distinct species will have more chances to survive with high populations and less fragmented distributional range in environments where the phylogenetic dilution effect is functioning. It is hoped that these results contributed to clarifying the complex associations generated by phylogenetic community structure in future ecological and evolutionary studies.

Arbuscular mycorrhizal communities associated with maples (Acer spp.) in a common garden are influenced by season and host plant

Botany ◽  
2014 ◽  
Vol 92 (4) ◽  
pp. 321-326 ◽  
Author(s):  
Thorunn Helgason ◽  
Huyuan Feng ◽  
David J. Sherlock ◽  
J. Peter W. Young ◽  
Alastair H. Fitter
Keyword(s):  
Community Structure ◽  
Fragment Length Polymorphism ◽  
Arbuscular Mycorrhizal ◽  
Common Garden ◽  
Am Fungi ◽  
Growing Season ◽  
Dynamic Nature ◽  
Time Points ◽  
Ordination Analysis ◽  
Restriction Fragment Length

The arbuscular mycorrhizal (AM) fungi are ubiquitous biotrophic root endophytes that form a significant link in macronutrient cycles. The AM fungi occupy two niches simultaneously, the intraradical niche, from which they gain carbon, and the bulk soil. We predict that AM community structure will vary through time, depending upon season and plant identity. In this study, we compared the AM fungal community colonising eight species of Acer L. (maple) grown in an arboretum. DNA from root samples was analysed using terminal restriction fragment length polymorphism (TRFLP) of AM fungal sequences. Three time points were sampled during the growing season, and ordination analysis showed this was the most important factor discriminating the TRFLP profiles. Analysis of each month separately showed that the host species was a significant factor in all samplings, but that the response of each species through time was different. This study demonstrates the dynamic nature of AM communities, and the importance of sampling habitats throughout the season to generate a complete picture of the AM community.

scholarly journals Infection of Plasmodiophora brassicae changes the fungal endophyte community of tumourous stem mustard roots as revealed by high-throughput sequencing and culture-dependent methods

PLoS ONE ◽  
2019 ◽  
Vol 14 (6) ◽  
pp. e0214975 ◽  
Author(s):  
Xueliang Tian ◽  
Diandong Wang ◽  
Zhenchuan Mao ◽  
Limei Pan ◽  
Jingjing Liao ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Sequencing ◽  
Plasmodiophora Brassicae ◽  
Fungal Endophyte ◽  
Endophyte Community ◽  
Culture Dependent
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