Quercus species control nutrients dynamics by determining the composition and activity of the forest floor fungal community

Chávez‐Vergara, Bruno; Rosales-Castillo, Andrei; Merino, Agustı́n; Vázquez-Marrufo, Gerardo; Oyama, Ken; García‐Oliva, Felipe

doi:10.1016/j.soilbio.2016.04.015

Cited by 17 publications

(24 citation statements)

References 69 publications

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“…For example, Quercus species control nutrient dynamics by determining the composition and activity of the forest floor fungal community (Chávez‐Vergara et al. ) and the litter type (Hatton et al. ).…”

Section: Feedbacks On Environmentmentioning

confidence: 99%

The bioelements, the elementome, and the biogeochemical niche

Peñuelas

Fernández‐Martínez

Ciais

et al. 2019

Ecology

155

181

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Every living creature on Earth is made of atoms of the various bioelements that are harnessed in the construction of molecules, tissues, organisms, and communities, as we know them. Organisms need these bioelements in specific quantities and proportions to survive and grow. Distinct species have different functions and life strategies, and have therefore developed distinct structures and adopted a certain combination of metabolic and physiological processes. Each species is thus also expected to have different requirements for each bioelement. We therefore propose that a “biogeochemical niche” can be associated with the classical ecological niche of each species. We show from field data examples that a biogeochemical niche is characterized by a particular elementome defined as the content of all (or at least most) bioelements. The differences in elementome among species are a function of taxonomy and phylogenetic distance, sympatry (the bioelemental compositions should differ more among coexisting than among non‐coexisting species to avoid competitive pressure), and homeostasis with a continuum between high homeostasis/low plasticity and low homeostasis/high plasticity. This proposed biogeochemical niche hypothesis has the advantage relative to other associated theoretical niche hypotheses that it can be easily characterized by actual quantification of a measurable trait: the elementome of a given organism or a community, being potentially applicable across taxa and habitats. The changes in bioelemental availability can determine genotypic selection and therefore have a feedback on ecosystem function and organization, and, at the end, become another driving factor of the evolution of life and the environment.

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Section: Feedbacks On Environmentmentioning

confidence: 99%

The bioelements, the elementome, and the biogeochemical niche

Peñuelas

Fernández‐Martínez

Ciais

et al. 2019

Ecology

155

181

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“…Quercus deserticola Trel. trees are dominant in the study area; they lose their foliage during the dry season from January to May and flush leaves in June at the start of the rainy season [24,33]. The region in which the study area is located has suffered forest losses due to logging for timber and charcoal extraction, agricultural expansion, and grazing [34][35][36].…”

Section: Study Area and Litter Samplingmentioning

confidence: 99%

“…For these reasons, knowledge about how these forests respond to disturbance could contribute to developing strategies for their conservation and sustainable management [20,21], in particular changes in microbiological, biochemical, and nutritional components of oak forest litter due to anthropogenic disturbance [22,23], and their potential for recovery. Although Mexico is a hotspot of Quercus species diversity, studies of fungal communities in oak forests are limited [24], focusing on ectomycorrhizal species [25] but not other functional groups. Thus, evaluating the structure of the fungal community and the enzymatic profiles of lignin degradation in decomposing litter allows the characterization of spatial and temporal patterns of diversity and responses to environmental factors [23,26] and land use practices [27,28].…”

Section: Introductionmentioning

confidence: 99%

Fungal Community and Ligninolytic Enzyme Activities in Quercus deserticola Trel. Litter from Forest Fragments with Increasing Levels of Disturbance

Rosales-Castillo

Oyama

Vázquez-Garcidueñas

et al. 2017

Forests

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Litter fungal communities and their ligninolytic enzyme activities (laccase, Mn-peroxidase, and lignin-peroxidase) play a vital role in forest biogeochemical cycles by breaking down plant cell wall polymers, including recalcitrant lignin. However, litter fungal communities and ligninolytic enzyme activities have rarely been studied in Neotropical, non-coniferous forests. Here, we found no significant differences in litter ligninolytic enzyme activities from well preserved, moderately disturbed, and heavily disturbed Quercus deserticola Trel. forests in central Mexico. However, we did find seasonal effects on enzyme activities: during the dry season, we observed lower laccase, and increased Mn-peroxidase and lignin-peroxidase activities, and in the rainy season, Mn-peroxidase and lignin-peroxidase activities were lower, while laccase activity peaked. Fungal diversity (Shannon-Weaver and Simpson indices) based on ITS-rDNA analyses decreased with increased disturbance, and principal component analysis showed that litter fungal communities are structured differently between forest types. White-rot Polyporales and Auriculariales only occurred in the well preserved forest, and a high number of Ascomycota were shared between forests. While the degree of forest disturbance significantly affected the litter fungal community structure, the ligninolytic enzyme activities remained unaffected, suggesting functional redundancy and a possible role of generalist Ascomycota taxa in litter delignification. Forest conservation and restoration strategies must account for leaf litter and its associated fungal community.

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“…Mexico is a world center of oaks richness and endemisms (Manos et al 1999, Valencia-A 2004, Varela-Fregoso et al 2017, Cavender-Bares 2018, it has been observed that there is a correspondence also of a high boletoid diversity, shown by the recent report of mycorrhizal fungi (García-Jiménez & Garza-Ocañas 2001, Chávez-Vergara et al 2016, Varela-Fregoso et al 2017, even though oak forests represent only warm-subhumid (Am), and most of the rainfall occurs during the wet summer (García 2004), with 1,200-1,400 mm from May to October and 400-500 mm from November to April (INEGI 2009).…”

Section: Methodsmentioning

confidence: 98%

New records of Boletales (Basidiomycota) of a tropical oak forest from Mexican Southeast

et al. 2019

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Background: Derived from the study of the mycobiota associated with Quercus oleoides Schltdl. et Cham., tropical oaks have been explored in Tabasco, finding great diversity in numerous fungal groups, such as boletoids macromycetes.Question: What is the diversity of the mycobiota of Boletales poroides associated with tropical oaks of Tabasco?Species Study: Order BoletalesStudy sites and date: municipality of Balancán in the state of Tabasco, 2012 – 2016.Methods: Collections of boletoid fungi associated with Q. oleoides were carried out according to conventional mycology techniques for taxonomic identification, a dichotomous key of the species found was performed and their geographical distribution was analyzed.Results: Up to now, nine species assigned to five genera and two families of boletoid macromycetes have been identified.Conclusions: All species are new records for the State, thus expanding its geographic distribution, it is the first record of macromycetes associated with tropical holm oaks in southeastern Mexico.

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Quercus species control nutrients dynamics by determining the composition and activity of the forest floor fungal community

Cited by 17 publications

References 69 publications

The bioelements, the elementome, and the biogeochemical niche

The bioelements, the elementome, and the biogeochemical niche

Fungal Community and Ligninolytic Enzyme Activities in Quercus deserticola Trel. Litter from Forest Fragments with Increasing Levels of Disturbance

New records of Boletales (Basidiomycota) of a tropical oak forest from Mexican Southeast

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