Fungi of the Fortuna Forest Reserve: Taxonomy and ecology with emphasis on ectomycorrhizal communities

Corrales, Adriana; Ovrebo, Clark L.

doi:10.1101/2020.04.16.045724

Cited by 4 publications

(5 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Based on previous research in neotropical monodominant forest of Guyana, as many as 70% of the ECM fungal species in a newly explored area may be undescribed (Henkel et al, 2012). We have observed this same pattern in the Oreomunnea monodominant forest where many ECM fungal species appear to be new (Corrales and Ovrebo, 2020).…”

Section: Introductionsupporting

confidence: 75%

“…In montane tropical forest of western Panama, the ECM host tree Oreomunnea mexicana (Juglandaceae) forms monodominant stands and associates with a highly diverse community of ECM fungi ( Corrales et al, 2016 ). Several inventories employing environmental sequencing of roots in these forests indicate that Laccaria is a dominant genus of the fungal community ( Corrales et al, 2016 , 2017 ; Corrales and Ovrebo, 2020 ). However, despite all the sequencing efforts, much of the reported Laccaria diversity from these forests remains unidentified and it is apparent that this region has a number of undescribed species.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology

et al. 2020

Self Cite

View full text Add to dashboard Cite

Since 2013 there have been 22 new species of Laccaria described worldwide. Only three of these represent species from the neotropics. In Panama, Laccaria is abundant in monodominant Oreomunnea mexicana (Juglandaceae) forests based on sporocarps and environmental sequencing of roots. This study uses a combination of morphological and phylogenetic evidence to document up to seven species of Laccaria from these forests, one previously described, three described as new, and three requiring more data before being formally described. Molecular data used for phylogenetic analysis include the nuclear ribosomal ITS and 28S regions, along with TEF1 and RPB2. Laccaria stellata, has previously been reported from O. mexicana cloud forests of Panama. Laccaria dallingii sp. nov., L. nitrophila sp. nov., and L. fortunensis sp. nov. are described as new based on morphology and phylogenetic analysis of multiple collections. A taxon referred to as "PAN sp3" is resolved sister to L. stellata. Phylogenetic analysis also resolved two separate clades of Panamanian Laccaria as sister to L. roseoalbescens, a species previously described from Mexico. These three taxa are not described in this paper as there is too little material from which to make effective morphological descriptions even though their placement in phylogenetic analysis identify them as being unique. Ecologically, all described species except for L. fortunensis were amplified from O. mexicana ectomycorrhizal root tips. L. nitrophila was one of the most recovered species from the roots of O. mexicana in a previous study, and it has been shown to respond positively to long term nitrogen addition. Our results expand the knowledge of Laccaria diversity for Central America and highlight that at least some species of Laccaria are nitrophilic in neotropical Juglandaceae forests as well as in temperate forests.

show abstract

Section: Introductionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…For simplicity, we refer to this ECM lineage (equivalent to ‘/russula‐lactarius’ sensu Tedersoo et al ., 2010a) as ‘Russulaceae’ in the following. Russulaceae are routinely recovered in sporocarp and DNA‐based surveys, including in the Neotropics (Tedersoo et al ., 2010b; Tedersoo & Nara, 2010; Smith et al ., 2011; Henkel et al ., 2012; Roy et al ., 2016; Vasco‐Palacios et al ., 2018; Corrales & Ovrebo, 2021). They associate with most known ECM plant lineages (Tedersoo & Brundrett, 2017), as well as orchids (Dearnaley, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…The importance of ECM fungi in the Neotropics is exemplified by the recent discoveries of high‐diversity sites with many undescribed species (e.g. Henkel et al ., 2012; Roy et al ., 2016; Vasco‐Palacios et al ., 2018; Delgat et al ., 2020; Corrales & Ovrebo, 2021). ECM fungi thus form an important component of many neotropical ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Biogeographic history of a large clade of ectomycorrhizal fungi, the Russulaceae, in the Neotropics and adjacent regions

et al. 2022

View full text Add to dashboard Cite

The biogeography of neotropical fungi remains poorly understood. Here, we reconstruct the origins and diversification of neotropical lineages in one of the largest clades of ectomycorrhizal fungi in the globally widespread family Russulaceae.We inferred a supertree of 3285 operational taxonomic units, representing worldwide internal transcribed spacer sequences. We reconstructed biogeographic history and diversification and identified lineages in the Neotropics and adjacent Patagonia.The ectomycorrhizal Russulaceae have a tropical African origin. The oldest lineages in tropical South America, most with African sister groups, date to the mid-Eocene, possibly coinciding with a boreotropical migration corridor. There were several transatlantic dispersal events from Africa more recently. Andean and Central American lineages mostly have northtemperate origins and are associated with North Andean uplift and the general north-south biotic interchange across the Panama isthmus, respectively. Patagonian lineages have Australasian affinities. Diversification rates in tropical South America and other tropical areas are lower than in temperate areas.Neotropical Russulaceae have multiple biogeographic origins since the mid-Eocene involving dispersal and co-migration. Discontinuous distributions of host plants may explain low diversification rates of tropical lowland ectomycorrhizal fungi. Deeply diverging neotropical fungal lineages need to be better documented.

show abstract

“…A complex feedback process occurs at the interface between plant and soil. Soil fungi form a dense underground mycelium bridge network in soil through coupling with plant roots, thus, promoting water and nutrient absorption by the plant [60]. Most terrestrial plants can form mycorrhizal symbionts with AM fungi, and the fungi cannot grow and complete their life cycle without host plants [22].…”

Section: Discussionmentioning

confidence: 99%

Impact of Aspect on Arbuscular Mycorrhizal Fungal Diversity and Community Composition in a Natural Toona ciliata var. pubescens Forest in Subtropical China

Wang

Pan

et al. 2022

Forests

View full text Add to dashboard Cite

The aspect can affect plant communities and soil physical and chemical properties through different microclimates. However, little is known about the effect of aspect on arbuscular mycorrhizal (AM) fungal diversity and community composition, although AM fungi are beneficial for plant nutrient absorption and natural restoration. In this study, AM fungal community and diversity distribution patterns in the rhizosphere soil and roots of seven widespread plants in a natural Toona ciliata var. pubescens (Tc) forest on the north-facing (NF) aspect and south-facing (SF) aspect were investigated using Illumina PE250 high-throughput sequencing in the Guanshan National Nature Reserve, Jiangxi Province, China. Our results exhibited that aspect did not affect AM fungal diversity but significantly affected AM fungal community structure and composition. Glomeraceae was the most common and abundant family in the Tc natural forest. The Glomeromycota sequence proportion of root AM fungal community was significantly larger on NF than on SF (p < 0.05). The relative abundance of Acaulosporaceae of root AM fungal community differed significantly with aspect, being greater on NF than on SF (p < 0.05). In addition, the number of Glomeromycota sequences was significantly larger on SF than on NF, while the number of OTUs and the relative abundance of unclassified fungi in rhizosphere soil in Tc showed the opposite trend (p < 0.05). The soil properties (organic matter, nitrogen, potassium, phosphorus, and pH) were significantly correlated with these changes. These findings indicate that the habitat of NF with low insolation, high soil moisture, and high nutrient content might promote the functional realization of AM fungi; the habitat of SF with high insolation, low soil moisture, and low soil nutrient content might be beneficial for the proliferation and preservation of AM fungal groups. This study provides important information on the ecological processes of AM fungal community construction and microbiological mechanisms in natural Tc forests.

show abstract

Fungi of the Fortuna Forest Reserve: Taxonomy and ecology with emphasis on ectomycorrhizal communities

Cited by 4 publications

References 35 publications

Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology

Novel Laccaria Species From Juglandaceae Forest in Panama With Notes on Their Ecology

Biogeographic history of a large clade of ectomycorrhizal fungi, the Russulaceae, in the Neotropics and adjacent regions

Impact of Aspect on Arbuscular Mycorrhizal Fungal Diversity and Community Composition in a Natural Toona ciliata var. pubescens Forest in Subtropical China

Contact Info

Product

Resources

About