Composition of fungal soil communities varies with plant abundance and geographic origin

Reininger, Vanessa; Martínez‐García, Laura B.; Sanderson, L. A.; Antunes, Pedro M.

doi:10.1093/aobpla/plv110

Cited by 16 publications

(10 citation statements)

References 71 publications

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“…Plant samples were processed in the same manner as described by Reininger, Martinez‐Garcia, Sanderson, and Antunes (). Briefly, root systems were gently washed with cold tap water to remove attached soils and roots from other plants.…”

Section: Methodsmentioning

confidence: 99%

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Plant geographic origin and phylogeny as potential drivers of community structure in root‐inhabiting fungi

2019

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Root‐inhabiting fungal communities, including mutualists and antagonists, influence host plant performance, and can potentially shape plant community composition. However, there is uncertainty about how root‐inhabiting fungal communities are structured, and if fungal community characteristics are significant predictors of host plant abundance. In this study, we first assessed how root‐inhabiting fungal communities were structured in relation to the phylogeny and geographic origins (native vs. exotic) of their host plants in an old‐field community. In addition, we took into consideration the spatial arrangements (i.e. physical locations) of the individual host plants. We then tested if the relative abundances of pathogenic and beneficial arbuscular mycorrhizal (AM) fungi could predict host plant abundances. We found that host plant phylogeny was an important factor in structuring the whole fungal community, irrespective of host plant origin. Furthermore, the spatial arrangements of individual host plants were a strong predictor of AM fungal community structure. Host plant phylogeny and spatial arrangements appeared to similarly affect the structure of pathogenic fungal communities. No distinct differences were observed between native and exotic plant species in fungal community characteristics. The relative abundances of AM and pathogenic fungi were not significant predictors for observed abundances of their host plants. Synthesis. Host plant phylogeny and spatial arrangements can structure naturally occurring root‐inhabiting fungal communities. The absence of distinct differences in fungal community composition, including pathogens, in exotic and native plants suggests long residence times and the consequent naturalization of exotic species in the region, allowing for the establishment of similar plant–microbial interactions between native and exotic species.

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Section: Methodsmentioning

confidence: 99%

“…Plant samples were processed in the same manner as described by Reininger, Martinez-Garcia, Sanderson, and Antunes (2015).…”

Section: Whole Plant Sample Collection and Processingmentioning

confidence: 99%

Plant geographic origin and phylogeny as potential drivers of community structure in root‐inhabiting fungi

2019

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“…The different populations have consequently shown significant statistical differences for the studied parameters. These results related to composition of fungal soil communities with plant abundance and geographic origin are well documented (Reininger et al, 2015;Thioye et al, 2017). In order to further characterize the diversity of the Atlas Cypress populations, the physiological and nutritional behavior of the seedlings from the different locations was studied through forest greenhouse cultures.…”

Section: Sitesmentioning

confidence: 95%

Réponses des plantules du cyprès de l’Atlas, <I>Cupressus atlantica</I> Gaussen, à l’inoculation de mycorhize arbusculaire en provenance de diverses origines dans l’ouest du Haut Atlas au Maroc

et al. 2018

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Le cyprès de l’Atlas, Cupressus atlantica Gaussen, est endémique stricte de l’ouest du Haut Atlas marocain. Cette espèce joue un rôle écologique et socio-économique très important dans son aire de distribution : pour produire du bois de feu, aider à protéger les sols contre l’érosion, et comme plante médicinale chez les populations locales. Malheureusement, subissant diverses pressions, principalement le surpâturage et les activités humaines excessives, l’espèce souffre d’une détérioration alarmante et de perte de territoire. La variabilité des champignons mycorhiziens arbusculaires et sa réponse à l’inoculation mycorhizienne des plantules sous serre ont été étudiées pour différentes provenances. Douze populations naturelles représentant l’aire de distribution du cyprès de l’Atlas ont été sondées, à Adebdi, Aghbar, Allous, Idni, Ighil, Ighzer, Mzouzit, Rikt, Tiouna, Taghzout, Talat N’os and Taws. L’analyse des variations des champignons mycorhiziens associés aux racines de cyprès de l’Atlas ont révélé la présence d’au moins sept morphotypes appartenant aux genres Rhizophagus, Glomus, Gigaspora et Acaulospora. Le taux de colonisation mycorhizienne dans les racines du cyprès de l’Atlas a été examiné dans son milieu naturel, montrant une variation de 25 % à 45 %. Dans les conditions sous serre, la croissance des plantules, avec ou sans inoculation avec un complexe mycrohizien, a été surveillée pour les plantules provenant des douze lieux échantillonnés. Les résultats montrent qu’en absence des champignons bénéfiques dans le substrat de culture, la croissance et la nutrition des plantules ont été hautement dépendantes de l’origine des graines. En revanche, en présence du champignon dans le substrat de culture, les paramètres de croissance et de nutrition des plantules des douze provenances ne différaient pas de manière significative. Deux groupes principaux ont été identifiés par l’analyse en composantes principales et la classification ascendante hiérarchique basées sur les caractères analysés. Le premier groupe comprend les populations de la vallée de N’Fis, à savoir Allous, Idni, Ighil, Ighzer, Mzouzit, Rikt, Talat N’os et Taws, alors que le second groupe est composé des populations du côté sud, Aghbar, Adebdi, Taghzout et Tiouna.

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“…Ascomycota represents the predominant fungal phylum in BSCs (Maier et al, 2016). However, research has shown that the composition of BSC fungal communities differs based on soil types and geographical location (Reininger et al, 2015). In general, fungi produce vegetative filaments (hyphae) which bind soil particles together and help to consolidate the surface of BSC communities (Tisdall, 1991;Degens et al, 1996).…”

Section: Free-living Fungimentioning

confidence: 99%

Reproduction and Dispersal of Biological Soil Crust Organisms

et al. 2019

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Biological soil crusts (BSCs) consist of a diverse and highly integrated community of organisms that effectively colonize and collectively stabilize soil surfaces. BSCs vary in terms of soil chemistry and texture as well as the environmental parameters that combine to support unique combinations of organisms-including cyanobacteria dominated, lichen-dominated, and bryophyte-dominated crusts. The list of organismal groups that make up BSC communities in various and unique combinations include-free living, lichenized, and mycorrhizal fungi, chemoheterotrophic bacteria, cyanobacteria, diazotrophic bacteria and archaea, eukaryotic algae, and bryophytes. The various BSC organismal groups demonstrate several common characteristics including-desiccation and extreme temperature tolerance, production of various soil binding chemistries, a near exclusive dependency on asexual reproduction, a pattern of aerial dispersal over impressive distances, and a universal vulnerability to a wide range of human-related perturbations. With this publication, we provide literature-based insights as to how each organismal group contributes to the formation and maintenance of the structural and functional attributes of BSCs, how they reproduce, and how they are dispersed. We also emphasize the importance of effective application of molecular and microenvironment sampling and assessment tools in order to provide cogent and essential answers that will allow scientists and land managers to better understand and manage the biodiversity and functional relationships of soil crust communities.

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Composition of fungal soil communities varies with plant abundance and geographic origin

Cited by 16 publications

References 71 publications

Plant geographic origin and phylogeny as potential drivers of community structure in root‐inhabiting fungi

Plant geographic origin and phylogeny as potential drivers of community structure in root‐inhabiting fungi

Réponses des plantules du cyprès de l’Atlas, <I>Cupressus atlantica</I> Gaussen, à l’inoculation de mycorhize arbusculaire en provenance de diverses origines dans l’ouest du Haut Atlas au Maroc

Reproduction and Dispersal of Biological Soil Crust Organisms

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