Capitalización, conservación y turismo

Gómez, E

doi:10.12957/rdc.2015.18854

Cited by 2 publications

(2 citation statements)

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“…In our study, the observed changes in soil organic C and C:N ratio across plant covers were clearly correlated to the diversity and the structure of soil fungal communities. Regarding the tree species effects on fungal structure, we found that Ascomycota was the most abundant phylum in all soils (except under pine in the South site), despite Basidiomycota is often dominant in forest soils (Sun et al, 2016;Zappelini et al, 2015;Tedersoo et al, 2014b;Buée et al, 2009;O'Brien et al, 2005). This pattern has been observed previously in another trace element contaminated site (Narendrula-Kotha and Nkongolo, 2017) and in soils under poplar trees, both from polluted (Foulon et al, 2016) and unpolluted areas (Shakya et al, 2013).…”

Section: Tree Species Identity and Abiotic Soil Conditions Influence supporting

confidence: 83%

“…4). In accordance, soil fungal communities have been seen strongly determined by dominant vegetation (Urbanová et al, 2015;Buée et al, 2009). As exposed above, and as found in many other works (Leff et al, 2018;Chaparro et al, 2014;Berg and Smalla, 2009), this significant influence may be related to specific changes on the abiotic/biotic environment below each tree, i.e.…”

Section: Tree Species Identity and Abiotic Soil Conditions Influence supporting

confidence: 77%

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Soil fungal diversity and functionality are driven by plant species used in phytoremediation

Gil-Martínez

López‐García

Domínguez

et al. 2021

Soil Biology and Biochemistry

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Soil biodiversity loss due to pollution may affect ecosystem services negatively. This environmental problem may be solved by phytoremediation, which is an effective strategy to manage and remediate contaminated areas. During this remediation process, the establishment of plant communities may improve soil fungal community structure and, in particular, may favour mycorrhizal symbiotic associations. As a consequence, afforestation of degraded lands will have different outcomes on fungal diversity and functionality, which will depend on the selected tree and shrub species.We analysed soil fungal diversity and functional guilds by high-throughput sequencing of environmental DNA in a trace element contaminated area, part of a large scale phytoremediation project running for 20 years. We selected five habitats for comparison purposes: three under the canopy of selected tree species (wild olive, white poplar and stone pine), adjacent treeless areas (grassland) and non-remediated areas (bare soil).Soil fungal diversity and richness seemed to be enhanced by phytoremediation. White poplar soil had the highest diversity and richness compared to wild olive and stone pine.Fungal communities were especially different between stone pine, with soils rich in organic C and high C:N ratio, and grassland soils.We identified 9,428 fungal OTUs from which 1,283 were assigned to a unique functional guild; the most abundant belonging to saprotrophic, plant pathogenic and ectomycorrhizal functional guilds. Ectomycorrhizal fungi were more abundant in soils under ectomycorrhizal host trees. Saprotrophs were abundant in grassland and wild olive soils, while plant pathogens were abundant in non-remediated soils. 3The remediation of soils (clean-up and amendment addition) allowed the natural establishment of grassland habitats throughout the study area, increasing fungal diversity, richness, taxonomy and functionality, when compared to non-remediated soils. Tree afforestation allowed the establishment of a forest type community bringing a further recruitment of fungal taxa, mainly the ectomycorrhizal fungal guild. Afforestation with different tree species showed species-specific effects on soil N, organic C, Ca and C:N ratio which led to increased spatial heterogeneity in areas with potential to recruit a wider diversity of fungi.

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Section: Tree Species Identity and Abiotic Soil Conditions Influence supporting

confidence: 83%

Section: Tree Species Identity and Abiotic Soil Conditions Influence supporting

confidence: 77%

Soil fungal diversity and functionality are driven by plant species used in phytoremediation

Gil-Martínez

López‐García

Domínguez

et al. 2021

Soil Biology and Biochemistry

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Exploring the mycobiome and arbuscular mycorrhizal fungi associated with the rizosphere of the genus Inga in the pristine Ecuadorian Amazon

Arévalo-Granda

Hickey-Darquea²,

Prado-Vivar³

et al. 2023

Front. Fungal Biol.

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This study explored the composition of the mycobiome in the rhizosphere of Inga seedlings in two different but neighboring forest ecosystems in the undisturbed tropical Amazon rainforest at the Tiputini Biodiversity Station in Ecuador. In terra firme plots, which were situated higher up and therefore typically outside of the influence of river floods, and in várzea plots, the lower part of the forest located near the riverbanks and therefore seasonally flooded, tree seedlings of the genus Inga were randomly collected and measured, and the rhizosphere soils surrounding the root systems was collected. Members of the Fabaceae family and the genus Inga were highly abundant in both forest ecosystems. Inga sp. seedlings collected in terra firme showed a lower shoot to root ratio compared to seedlings that were collected in várzea, suggesting that Inga seedlings which germinated in várzea soils could invest more resources in vegetative growth with shorter roots. Results of the physical-chemical properties of soil samples indicated higher proportions of N, Mo, and V in terra firme soils, whereas várzea soils present higher concentrations of all other macro- and micronutrients, which confirmed the nutrient deposition effect of seasonal flooding by the nearby river. ITS metabarcoding was used to explore the mycobiome associated with roots of the genus Inga. Bioinformatic analysis was performed using Qiime 2 to calculate the alpha and beta diversity, species taxonomy and the differential abundance of fungi and arbuscular mycorrhizal fungi. The fungal community represented 75% of the total ITS ASVs, and although present in all samples, the subphylum Glomeromycotina represented 1.42% of all ITS ASVs with annotations to 13 distinct families, including Glomeraceae (72,23%), Gigasporaceae (0,57%), Acaulosporaceae (0,49%). AMF spores of these three AMF families were morphologically identified by microscopy. Results of this study indicate that AMF surround the rhizosphere of Inga seedlings in relatively low proportions compared to other fungal groups but present in both terra firme and várzea Neotropical ecosystems.

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Capitalización, conservación y turismo

Cited by 2 publications

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Soil fungal diversity and functionality are driven by plant species used in phytoremediation

Soil fungal diversity and functionality are driven by plant species used in phytoremediation

Exploring the mycobiome and arbuscular mycorrhizal fungi associated with the rizosphere of the genus Inga in the pristine Ecuadorian Amazon

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