Endo- and Ectomycorrhizas in Tropical Ecosystems of Colombia

Peña‐Venegas, Clara P.; Vasco-Palacios, Aída M.

doi:10.1007/978-3-030-15228-4_6

Cited by 9 publications

(9 citation statements)

References 64 publications

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“…Although the arbuscular mycorrhizae type is the most studied plant-fungus association, there has been a bias towards AMF research in temperate regions, with considerably less AMF research being conducted in the tropics ( Cofré et al., 2019 ; Peña-Venegas and Vasco-Palacios, 2019 ). AMF communities in primary tropical forest ecosystems can be complex, and so are the factors that drive the community establishment.…”

Section: Introductionmentioning

confidence: 99%

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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Section: Introductionmentioning

confidence: 99%

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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“…Some studies conducted in tropical regions using molecular techniques have reported the presence and abundance of AMF taxa. However, they have not addressed factors influencing community structuring processes (Senés-Guerrero and Schüßler 2015; Séry et al 2018;Peña-Venegas and Vasco-Palacios 2019;Sarr et al 2019). The lack of knowledge of tropical AMF community distribution and biogeography hinders our ability to harness the ecological services of AMF towards sustainable agriculture.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical spatial sampling reveals factors influencing arbuscular mycorrhizal fungus diversity in Côte d’Ivoire cocoa plantations

et al. 2021

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While many molecular studies have documented arbuscular mycorrhizal fungi (AMF) communities in temperate ecosystems, very few studies exist in which molecular techniques have been used to study tropical AMF communities. Understanding the composition of AMF communities in tropical areas gains special relevance as crop productivity in typically low fertility tropical soils can be improved with the use of AMF. We used a hierarchical sampling approach in which we sampled soil from cocoa (Theobroma cacao L.) plantations nested in localities, and in which localities were nested within each of three regions of Côte d’Ivoire. This sampling strategy, combined with 18S rRNA gene sequencing and a dedicated de novo OTU-picking model, allowed us to study AMF community composition and how it is influenced at different geographical scales and across environmental gradients. Several factors, including pH, influenced overall AMF alpha diversity and differential abundance of specific taxa and families of the Glomeromycotina. Assemblages and diversity metrics at the local scale did not reliably predict those at regional scales. The amount of variation explained by soil, climate, and geography variables left a large proportion of the variance to be explained by other processes, likely happening at smaller scales than the ones considered in this study. Gaining a better understanding of processes involved in shaping tropical AMF community composition and AMF establishment are much needed and could allow for the development of sustainable, productive tropical agroecosystems.

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“…We keep a total of eighteen species under doubtful taxa. There is a group of species that have been recorded in the literature for the Department of Tolima ( Franco-Molano et al 2010 , Peña-Venegas and Vasco-Palacios 2019 , Cossu et al 2022 , Gómez-Montoya et al 2022 ), but no voucher or collection was referenced. We carried out a search for vouchers of these species in the databases of the Herbarium of the Universidad de Antioquia or in the MyCoPortal .…”

Section: Discussionmentioning

confidence: 99%

“…; 16 Nov 2006; leg. Prada, P. 2 (HUA 166063) ( Peña-Venegas and Vasco-Palacios 2019 , Universidad de Antioquia 2023 )…”

Section: Checklistsunclassified

Diversity and distribution of macrofungi (Ascomycota and Basidiomycota) in Tolima, a Department of the Colombian Andes: an annotated checklist

Zambrano-Forero,

Dávila-Giraldo,

Motato-Vásquez

et al. 2023

BDJ

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Macrofungi are classified in the phylum Ascomycota and Basidiomycota and they are very important from an ecological and economic point of view. Most studies of fungi in Colombia have been carried out mainly in the Andean Region, especially in the Departments of Antioquia, Valle del Cauca and Cundinamarca. However, other Departments in the Andean Region, like Tolima, located in the Cordillera Central, are well documented for plants (4,797 species) and animals (2,983 species), but very poorly documented in terms of knowledge of fungal diversity. This study provides a compiled and annotated checklist of all known macrofungi in the Department of Tolima, based on published literature and on the identification of new specimens collected from five localities of the Department. All records were updated taxonomically and we include detailed information on the localities in which they are distributed in the Department. The list includes 164 taxa distributed in 15 orders (Agaricales, Polyporales, Russulales, Boletales, Hymenochaetales, Xylariales, Auriculariales, Thelephorales, Cantharellales, Hypocreales, Pezizales, Gloeophyllales, Phallales, Tremellales, Dacrymycetales) and eighteen records in a doubtful taxa section. We present 26 new reports, 19 for Tolima and nine for Colombia. We also provide genetic and phylogenetic evidence of the occurrence of Gloeoporus telephoroides and Podoscypha venustula in Colombia. This checklist provides the basis for future studies on species diversity and taxonomy in Tolima, by identifying the least studied taxa and ecosystems and conservation priorities.

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Endo- and Ectomycorrhizas in Tropical Ecosystems of Colombia

Cited by 9 publications

References 64 publications

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

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

Hierarchical spatial sampling reveals factors influencing arbuscular mycorrhizal fungus diversity in Côte d’Ivoire cocoa plantations

Diversity and distribution of macrofungi (Ascomycota and Basidiomycota) in Tolima, a Department of the Colombian Andes: an annotated checklist

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