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Quinteros-Urquieta C, Francois JP, Aguilar-Muñoz P, Orellana R, Villaseñor R, Moreira-Muñoz A, Molina V. Microbial Diversity of Soil in a Mediterranean Biodiversity Hotspot: Parque Nacional La Campana, Chile. Microorganisms 2024; 12:1569. [PMID: 39203411 PMCID: PMC11356564 DOI: 10.3390/microorganisms12081569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/22/2024] [Accepted: 07/25/2024] [Indexed: 09/03/2024] Open
Abstract
Parque Nacional La Campana (PNLC) is recognized worldwide for its flora and fauna, rather than for its microbial richness. Our goal was to characterize the structure and composition of microbial communities (bacteria, archaea and fungi) and their relationship with the plant communities typical of PNLC, such as sclerophyllous forest, xerophytic shrubland, hygrophilous forest and dry sclerophyllous forest, distributed along topoclimatic variables, namely, exposure, elevation and slope. The plant ecosystems, the physical and chemical properties of organic matter and the soil microbial composition were characterized by massive sequencing (iTag-16S rRNA, V4 and ITS1-5F) from the DNA extracted from the soil surface (5 cm, n = 16). A contribution of environmental variables, particularly related to each location, is observed. Proteobacteria (35.43%), Actinobacteria (32.86%), Acidobacteria (10.07%), Ascomycota (76.11%) and Basidiomycota (15.62%) were the dominant phyla. The beta diversity (~80% in its axes) indicates that bacteria and archaea are linked to their plant categories, where the xerophytic shrub stands out with the most particular microbial community. More specifically, Crenarchaeote, Humicola and Mortierella were dominant in the sclerophyllous forest; Chloroflexi, Cyanobacteria and Alternaria in the xerophytic shrubland; Solicoccozyma in the dry sclerophyllous forest; and Cladophialophora in the hygrophilous forest. In conclusion, the structure and composition of the microbial consortia is characteristic of PNLC's vegetation, related to its topoclimatic variables, which suggests a strong association within the soil microbiome.
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Affiliation(s)
- Carolina Quinteros-Urquieta
- Programa de Doctorado Interdisciplinario en Ciencias Ambientales, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Jean-Pierre Francois
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Polette Aguilar-Muñoz
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
- Centro de Investigación Oceanográfica COPAS COASTAL, Universidad de Concepción, Concepción 4070386, Chile
| | - Roberto Orellana
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Rodrigo Villaseñor
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
| | - Andres Moreira-Muñoz
- Instituto de Geografía, Pontificia Universidad Católica de Valparaíso, Valparaíso 2362807, Chile;
| | - Verónica Molina
- Departamento de Ciencias y Geografía, Universidad de Playa Ancha, Valparaíso 2340000, Chile; (J.-P.F.); (P.A.-M.); (R.O.)
- HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso 2340000, Chile;
- Centro de Investigación Oceanográfica COPAS COASTAL, Universidad de Concepción, Concepción 4070386, Chile
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da Luz JMR, de Souza Lopes L, da Silva MDCS, Vieira NA, Cardoso WS, Kasuya MCM. Lentinula edodes lignocellulolases and lipases produced in Macaúba residue and use of the enzymatic extract in the degradation of textile dyes. 3 Biotech 2023; 13:406. [PMID: 37987024 PMCID: PMC10657344 DOI: 10.1007/s13205-023-03827-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/19/2023] [Indexed: 11/22/2023] Open
Abstract
Agro-industrial residue and textile effluents have caused environmental damage to soil and water bodies. The production of fungal enzymes using agro-industrial residues and the use of these enzymes in the degradation of textile dyes can be a viable alternative to reduce these environmental damages. Lentinula edodes is a white rot fungus with high nutritional value that produces edible mushrooms and enzymes of commercial interest. Thus, the objectives of this study were to produce, purify, and biochemically characterize the lignocellulolytic enzymes and lipases produced for L. edodes in Macaúba coconut and to evaluate their potential for the degradation of textile dyes. The L. edodes UFV 73 had maximum enzymatic activity at 37 days of incubation. After the purification steps, the laccase, manganese peroxidase (MnP), cellulase, and, xylanase yields were 489.01, 264.2, 105.02, and 9.5%. The optimum temperature of cellulase activity did not change from 4 to 60 °C. The MnP, laccase, and lipase had activity directly proportional to the increase in temperature, while the cellulase and xylanase activity did not change. The optimum pH varied among analyzed enzymes. All the enzymes analyzed are according to Michaelis-Menten kinetics. The lignocellulolytic enzymes were stable up to 8 h of incubation and lipase had a reduction of activity after one hour. The discoloration rate of indigo dye by partially purified enzymatic extract (PPPE) was 40%, which shows its potential for degradation of dyes from textile industries.
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Affiliation(s)
- José Maria Rodrigues da Luz
- Departamento de Microbiologia, Laboratório de Associações Micorrizicas-LAMIC, Viçosa, Universidade Federal de Viçosa (UFV), Minas Gerais. (Avenida PH Rolfs S/N Viçosa, Viçosa, MG 36570-000 Brazil
| | | | | | | | - Wilton Soares Cardoso
- Federal Institute of Espírito Santo (IFES), Rua Elizabeth Minete Perim, S/N, Bairro São Rafael, Venda Nova dos Imigrantes, Espírito Santo-ES 29375-000 Brazil
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Wu D, Bai H, Zhao C, Peng M, Chi Q, Dai Y, Gao F, Zhang Q, Huang M, Niu B. The characteristics of soil microbial co-occurrence networks across a high-latitude forested wetland ecotone in China. Front Microbiol 2023; 14:1160683. [PMID: 37025633 PMCID: PMC10072330 DOI: 10.3389/fmicb.2023.1160683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/02/2023] [Indexed: 04/08/2023] Open
Abstract
To understand the effect of seasonal variations on soil microbial communities in a forested wetland ecotone, here, we investigated the dynamics of the diversities and functions of both soil bacterial and fungal communities inhabiting three wetland types (forested wetland, shrub wetland and herbaceous vegetation wetland) from forest-wetland ecotone of northern Xiaoxing'an Mountains spanning different seasons. β-diversity of soil microbial communities varied significantly among different vegetation types (Betula platyphylla-Larix gmelinii, Alnus sibirica, Betula ovalifolia, and Carex schmidtii wetlands). We totally detected 34 fungal and 14 bacterial indicator taxa among distinctive groups by using Linear discriminant analysis effect size (LEfSe) analysis, and identified nine network hubs as the most important nodes detected in whole fungi, bacteria, and fungi-bacteria networks. At the vegetation type-level, bacterial and fungal microbiome living in C. schmidtii wetland soil possessed fewer positive interactions and lower modularity than those in other types of wetland soil. Furthermore, we also discovered that ectomycorrhizal fungi were dominant in the fungal microbiota existing in forested and shrub wetland soils, whereas arbuscular mycorrhizal fungi were predominated in those residing in herbaceous vegetation wetland soil. The distribution of the predicted bacterial functional enzymes also obviously varied among different vegetation-types. In addition, the correlation analysis further revealed that the key fungal network modules were significantly affected by the contents of total N and soil water-soluble K, whereas most of the bacterial network modules were remarkably positively driven by the contents of total N, soil water-soluble K, Mg and Na. Our study suggested that vegetation type are substantive factors controlling the diversity, composition and functional group of soil microbiomes from forest-wetland ecotone of northern Xiaoxing'an Mountains.
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Affiliation(s)
- Di Wu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Hui Bai
- Key Laboratory of Fast-Growing Tree Cultivating of Heilongjiang Province, Forestry Science Research Institute of Heilongjiang Province, Harbin, China
| | - Caihong Zhao
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Mu Peng
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Qi Chi
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Yaping Dai
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Fei Gao
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
| | - Qiang Zhang
- Institute of Economic Forest of Xinjiang Academy of Forestry Sciences, Urumqi, China
| | - Minmin Huang
- Institute of Economic Forest of Xinjiang Academy of Forestry Sciences, Urumqi, China
| | - Ben Niu
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- The Center for Basic Forestry Research, College of Forestry, Northeast Forestry University, Harbin, China
- College of Life Science, Northeast Forestry University, Harbin, China
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Zuev AG, Krivosheina MG, Leonov VD, Öpik M, Vasar M, Saraeva AK, Tiunov AV, Goncharov AA. Mycorrhiza-feeding soil invertebrates in two coniferous forests traced with 13C labelling. MYCORRHIZA 2023; 33:59-68. [PMID: 36662299 DOI: 10.1007/s00572-023-01102-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Mycorrhizal fungi represent a potentially abundant carbon resource for soil animals, but their role in soil food webs remains poorly understood. To detect taxa that are trophically linked to the extraradical mycelium of mycorrhizal fungi, we used stable isotope (13C) labelling of whole trees in combination with the in-growth mesh bag technique in two coniferous forests. This allowed us to detect the flux of carbon in the mycelium of mycorrhizal fungi, and consequently in the tissues of soil invertebrates. The mycorrhizal fungal genera constituted 93.5% of reads in mycelium samples from the in-growth mesh bags. All mycelium from in-growth mesh bags and about 32% of the invertebrates sampled (in total 11 taxa) received the 13C label after 45 days of exposure. The extent of feeding of soil invertebrates on the mycelium of mycorrhizal fungi depended on the taxonomic affinity of the animals. The strongest trophic link to the mycorrhiza-derived carbon was detected in Isotomidae (Collembola) and Oppiidae (Oribatida). The label was also observed in the generalist predators, indicating the propagation of mycorrhiza-derived carbon into the higher trophic levels of the soil food web. Higher 13C labelling in the tissues of euedaphic Collembola and Oribatida compared to atmobiotic and hemiedaphic families indicates the importance of mycorrhizal fungi as a food resource for invertebrates in deeper soil horizons.
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Affiliation(s)
- Andrey G Zuev
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia.
| | - Marina G Krivosheina
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia
| | - Vladislav D Leonov
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia
| | - Maarja Öpik
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, 2 J. Liivi St, Tartu, 50409, Estonia
| | - Martti Vasar
- Department of Botany, Institute of Ecology and Earth Sciences, University of Tartu, 2 J. Liivi St, Tartu, 50409, Estonia
| | - Anna K Saraeva
- Forest Research Institute, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, 185910, Russia
| | - Alexei V Tiunov
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia
| | - Anton A Goncharov
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninsky Prospect 33, Moscow, 119071, Russia
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Quer E, Pereira S, Michel T, Santonja M, Gauquelin T, Simioni G, Ourcival JM, Joffre R, Limousin JM, Aupic-Samain A, Lecareux C, Dupouyet S, Orts JP, Bousquet-Mélou A, Gros R, Sagova-Mareckova M, Kopecky J, Fernandez C, Baldy V. Amplified Drought Alters Leaf Litter Metabolome, Slows Down Litter Decomposition, and Modifies Home Field (Dis)Advantage in Three Mediterranean Forests. PLANTS (BASEL, SWITZERLAND) 2022; 11:2582. [PMID: 36235447 PMCID: PMC9571106 DOI: 10.3390/plants11192582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
In Mediterranean ecosystems, the projected rainfall reduction of up to 30% may alter plant-soil interactions, particularly litter decomposition and Home Field Advantage (HFA). We set up a litter transplant experiment in the three main forests encountered in the northern part of the Medi-terranean Basin (dominated by either Quercus ilex, Quercus pubescens, or Pinus halepensis) equipped with a rain exclusion device, allowing an increase in drought either throughout the year or concentrated in spring and summer. Senescent leaves and needles were collected under two precipitation treatments (natural and amplified drought plots) at their "home" forest and were left to decompose in the forest of origin and in other forests under both drought conditions. MS-based metabolomic analysis of litter extracts combined with multivariate data analysis enabled us to detect modifications in the composition of litter specialized metabolites, following amplified drought treatment. Amplified drought altered litter quality and metabolomes, directly slowed down litter decomposition, and induced a loss of home field (dis)advantage. No indirect effect mediated by a change in litter quality on decomposition was observed. These results may suggest major alterations of plant-soil interactions in Mediterranean forests under amplified drought conditions.
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Affiliation(s)
- Elodie Quer
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Susana Pereira
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Thomas Michel
- CNRS, Nice Institute of Chemistry, UMR 7272, Parc Valrose, University of Côte d’Azur, 06108 Nice, France
| | - Mathieu Santonja
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Thierry Gauquelin
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Guillaume Simioni
- INRAE, Ecologie des Forêts Méditerranéennes (UR629) Domaine Saint Paul, Site Agroparc, 84914 Avignon, France
| | - Jean-Marc Ourcival
- CNRS, EPHE, IRD, CEFE, University Paul Valéry Montpellier, 34090 Montpellier, France
| | - Richard Joffre
- CNRS, EPHE, IRD, CEFE, University Paul Valéry Montpellier, 34090 Montpellier, France
| | - Jean-Marc Limousin
- CNRS, EPHE, IRD, CEFE, University Paul Valéry Montpellier, 34090 Montpellier, France
| | - Adriane Aupic-Samain
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Caroline Lecareux
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Sylvie Dupouyet
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Jean-Philippe Orts
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Anne Bousquet-Mélou
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Raphaël Gros
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Marketa Sagova-Mareckova
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamýcká 129, 165 00 Praha, Czech Republic
- Crop Research Institute, Drnovska 507, 16106 Praha, Czech Republic
| | - Jan Kopecky
- Crop Research Institute, Drnovska 507, 16106 Praha, Czech Republic
| | - Catherine Fernandez
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
| | - Virginie Baldy
- Aix Marseille University, Avignon University, CNRS, IRD, IMBE, 13397 Marseille, France
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Habitat Significantly Affect CWD Decomposition but No Home-Field Advantage of the Decomposition Found in a Subtropical Forest, China. FORESTS 2022. [DOI: 10.3390/f13060924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The home-field advantage (HFA) effect has been reported to occur in coarse woody debris (CWD) and litter. It is thought that the HFA effect may be due to the specialization of decomposers in their original habitats. However, the relative contribution of microorganisms, particularly fungi and bacteria, to deadwood decomposition is unclear because of differences in their functional at-tributes and carbon requirements, and the microorganisms that drive the HFA effect of deadwood are also unclear. Here, we analysed a dataset of microbial PLFA and substrate properties collected from the soil and CWD of two subtropical trees, Cryptomeria japonica and Platycarya strobilacea, from forests dominated by one or the other of the two species, with both species present in the forests. Our results showed that habitat and tree types all significantly affected CWD respiration rates, the CWD respiration rates were significantly higher in the deciduous broadleaf forests (DBF) than in the coniferous forest (CF) regardless of tree types, but no a large HFA of CWD decomposition found (HFA index was 4.75). Most biomarkers indicated bacteria and fungi were more abundant in the DBF than in the CF, and the concentration of microbial PLFAs was higher in Platycarya strobilacea than in Cryptomeria japonica. In addition, the relative abundance of fungi and soil B/F were remarkably positively correlated with CWD respiration, indicating that fungi may be the primary decomposers of CWD. In conclusion, our work highlights the importance of interactions between the three primary drivers (environment, substrate quality and microbes) on CWD decomposition.
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Mundra S, Kauserud H, Økland T, Nordbakken J, Ransedokken Y, Kjønaas OJ. Shift in tree species changes the belowground biota of boreal forests. THE NEW PHYTOLOGIST 2022; 234:2073-2087. [PMID: 35307841 PMCID: PMC9325058 DOI: 10.1111/nph.18109] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
The replacement of native birch with Norway spruce has been initiated in Norway to increase long-term carbon storage in forests. However, there is limited knowledge on the impacts that aboveground changes will have on the belowground microbiota. We examined which effects a tree species shift from birch to spruce stands has on belowground microbial communities, soil fungal biomass and relationships with vegetation biomass and soil organic carbon (SOC). Replacement of birch with spruce negatively influenced soil bacterial and fungal richness and strongly altered microbial community composition in the forest floor layer, most strikingly for fungi. Tree species-mediated variation in soil properties was a major factor explaining variation in bacterial communities. For fungi, both soil chemistry and understorey vegetation were important community structuring factors, particularly for ectomycorrhizal fungi. The relative abundance of ectomycorrhizal fungi and the ectomycorrhizal : saprotrophic fungal ratio were higher in spruce compared to birch stands, particularly in the deeper mineral soil layers, and vice versa for saprotrophs. The positive relationship between ergosterol (fungal biomass) and SOC stock in the forest floor layer suggests higher carbon sequestration potential in spruce forest soil, alternatively, that the larger carbon stock leads to an increase in soil fungal biomass.
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Affiliation(s)
- Sunil Mundra
- Section for Genetics and Evolutionary Biology (EvoGene)Department of BiosciencesUniversity of OsloPO Box 1066 BlindernOsloNO‐0316Norway
- Department of BiologyCollege of ScienceUnited Arab Emirates UniversityPO Box 15551Al‐Ain, Abu‐DhabiUnited Arab Emirates
| | - Håvard Kauserud
- Section for Genetics and Evolutionary Biology (EvoGene)Department of BiosciencesUniversity of OsloPO Box 1066 BlindernOsloNO‐0316Norway
| | - Tonje Økland
- Norwegian Institute of Bioeconomy ResearchPO Box 115ÅsNO‐1431Norway
| | | | - Yngvild Ransedokken
- Faculty of Environmental Sciences and Natural Resource ManagementNorwegian University of Life SciencesPO Box 5003ÅsNO‐1432Norway
| | - O. Janne Kjønaas
- Norwegian Institute of Bioeconomy ResearchPO Box 115ÅsNO‐1431Norway
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Home-Field Advantage of Litter Decomposition Faded 8 Years after Spruce Forest Clearcutting in Western Germany. SOIL SYSTEMS 2022. [DOI: 10.3390/soilsystems6010026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Home-field advantage (HFA) encompasses all the processes leading to faster litter decomposition in the ‘home’ environment compared to that of ‘away’ environments. To determine the occurrence of HFA in a forest and adjacent clear-cut, we set up a reciprocal litter decomposition experiment within the forest and clear-cut for two soil types (Cambisols and Gleysols) in temperate Germany. The forest was dominated by Norway spruce (Picea abies), whereas forest regeneration of European Beech (Fagus sylvatica) after clearcutting was encouraged. Our observation that Norway spruce decomposed faster than European beech in 70-yr-old spruce forest was most likely related to specialized litter-soil interaction under existing spruce, leading to an HFA. Elevated soil moisture and temperature, and promoted litter N release, indicated the rapid change of soil-litter affinity of the original spruce forest even after a short-term regeneration following clearcutting, resulting in faster beech decomposition, particularly in moisture- and nutrient-deficient Cambisols. The divergence between forest and clear-cut in the Cambisol of their litter δ15N values beyond nine months implied litter N decomposition was only initially independent of soil and residual C status. We conclude that clearcutting modifies the litter-field affinity and helps promote the establishment or regeneration of European beech in this and similar forest mountain upland areas.
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Fungal Metagenome of Chernevaya Taiga Soils: Taxonomic Composition, Differential Abundance and Factors Related to Plant Gigantism. J Fungi (Basel) 2021; 7:jof7110908. [PMID: 34829197 PMCID: PMC8620766 DOI: 10.3390/jof7110908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/18/2021] [Accepted: 10/23/2021] [Indexed: 11/29/2022] Open
Abstract
The Chernevaya taiga of Western Siberia is a unique and complex ecosystem, distinguished by the unusually large sizes of herbaceous plants, the reasons for which are poorly understood. Here, we explored the fungal diversity of the Chernevaya taiga soils in the Tomsk regions of Western Siberia in comparison with other soil types. The soil biomes of Chernevaya taiga and the control regions were investigated using Illumina ITS rRNA sequencing, and taxonomic analysis revealed a predominance of fungal phyla in the different soils. These results demonstrate that the fungi of the Chernevaya taiga regions have a higher species diversity (Faith’s PD) vs. the control soils, and the diversity is due more to the sampling sites rather than to the seasons (Bray-Curtis distance). We studied most of the differentially abundant taxa among the soil types, and we annotated the taxa with their ecological guilds and trophic types. Some of the abundant fungal taxa in the summer- and fall-Chernevaya taiga samples belong to the phylum Glomeromycota—arbuscular mycorrhizal symbiotrophs, which are known to establish symbiotic relationships and enhance plant growth. Additionally, several OTUs were assigned to novel genera in the Glomeraceae and Claroideoglomeraceae families. Our findings add a potential explanation of the high productivity and plant gigantism in Chernevaya taiga and expand our knowledge of fungal biodiversity.
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Fanin N, Lin D, Freschet GT, Keiser AD, Augusto L, Wardle DA, Veen GFC. Home-field advantage of litter decomposition: from the phyllosphere to the soil. THE NEW PHYTOLOGIST 2021; 231:1353-1358. [PMID: 34008201 DOI: 10.1111/nph.17475] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/03/2021] [Indexed: 06/12/2023]
Abstract
Plants often associate with specialized decomposer communities that increase plant litter breakdown, a phenomenon that is known as the 'home-field advantage' (HFA). Although the concept of HFA has long considered only the role of the soil microbial community, explicit consideration of the role of the microbial community on the foliage before litter fall (i.e. the phyllosphere community) may help us to better understand HFA. We investigated the occurrence of HFA in the presence vs absence of phyllosphere communities and found that HFA effects were smaller when phyllosphere communities were removed. We propose that priority effects and interactions between phyllosphere and soil organisms can help explain the positive effects of the phyllosphere at home, and suggest a path forward for further investigation.
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Affiliation(s)
- Nicolas Fanin
- INRAE, UMR 1391 ISPA, Bordeaux Sciences Agro, 71 Avenue Edouard Bourlaux, CS 20032, Villenave-d'Ornon Cedex, F33882, France
| | - Dunmei Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, 174th Shapingba Zhengjie Street, Shapingba District, Chongqing, 400045, China
| | - Grégoire T Freschet
- Station d'Ecologie Théorique et Expérimentale, CNRS, 2 route du CNRS, Moulis, 09200, France
| | - Ashley D Keiser
- Stockbridge School of Agriculture, 311 Paige Laboratory, University of Massachusetts, 161 Holdsworth Way, Amherst, MA, 01003, USA
| | - Laurent Augusto
- INRAE, UMR 1391 ISPA, Bordeaux Sciences Agro, 71 Avenue Edouard Bourlaux, CS 20032, Villenave-d'Ornon Cedex, F33882, France
| | - David A Wardle
- Asian School of the Environment, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - G F Ciska Veen
- Department of Terrestrial Ecology, Netherlands Institute of Ecology, Droevendaalstesteeg 10, Wageningen, 6708 PB, the Netherlands
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Choma M, Tahovská K, Kaštovská E, Bárta J, Růžek M, Oulehle F. Bacteria but not fungi respond to soil acidification rapidly and consistently in both a spruce and beech forest. FEMS Microbiol Ecol 2021; 96:5894924. [PMID: 32815987 DOI: 10.1093/femsec/fiaa174] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/18/2020] [Indexed: 11/13/2022] Open
Abstract
Anthropogenically enhanced atmospheric sulphur (S) and nitrogen (N) deposition has acidified and eutrophied forest ecosystems worldwide. However, both S and N mechanisms have an impact on microbial communities and the consequences for microbially driven soil functioning differ. We conducted a two-forest stand (Norway spruce and European beech) field experiment involving acidification (sulphuric acid addition) and N (ammonium nitrate) loading and their combination. For 4 years, we monitored separate responses of soil microbial communities to the treatments and investigated the relationship to changes in the activity of extracellular enzymes. We observed that acidification selected for acidotolerant and oligotrophic taxa of Acidobacteria and Actinobacteria decreased bacterial community richness and diversity in both stands in parallel, disregarding their original dissimilarities in soil chemistry and composition of microbial communities. The shifts in bacterial community influenced the stoichiometry and magnitude of enzymatic activity. The bacterial response to experimental N addition was much weaker, likely due to historically enhanced N availability. Fungi were not influenced by any treatment during 4-year manipulation. We suggest that in the onset of acidification when fungi remain irresponsive, bacterial reaction might govern the changes in soil enzymatic activity.
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Affiliation(s)
- Michal Choma
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Karolina Tahovská
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Eva Kaštovská
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Jiří Bárta
- Department of Ecosystem Biology, Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Michal Růžek
- Czech Geological Survey, Department of Environmental Geochemistry and Biogeochemistry, Geologická 6, Prague 5, 152 00, Czech Republic.,Department of Physical Geography, Faculty of Science, Charles University, Albertov 6, 128 43 Prague, Czech Republic
| | - Filip Oulehle
- Czech Geological Survey, Department of Environmental Geochemistry and Biogeochemistry, Geologická 6, Prague 5, 152 00, Czech Republic
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12
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Kohout P, Sudová R, Brabcová V, Vosolsobě S, Baldrian P, Albrechtová J. Forest Microhabitat Affects Succession of Fungal Communities on Decomposing Fine Tree Roots. Front Microbiol 2021; 12:541583. [PMID: 33584602 PMCID: PMC7876299 DOI: 10.3389/fmicb.2021.541583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 01/06/2021] [Indexed: 01/16/2023] Open
Abstract
Belowground litter derived from tree roots has been shown as a principal source of soil organic matter in coniferous forests. Fate of tree root necromass depends on fungal communities developing on the decaying roots. Local environmental conditions which affect composition of tree root mycobiome may also influence fungal communities developing on decaying tree roots. Here, we assessed fungal communities associated with decaying roots of Picea abies decomposing in three microhabitats: soil with no vegetation, soil with ericoid shrubs cover, and P. abies deadwood, for a 2-year period. Forest microhabitat showed stronger effect on structuring fungal communities associated with decaying roots compared to living roots. Some ericoid mycorrhizal fungi showed higher relative abundance on decaying roots in soils under ericoid shrub cover, while saprotrophic fungi had higher relative abundance in roots decomposing inside deadwood. Regardless of the studied microhabitat, we observed decline of ectomycorrhizal fungi and increase of endophytic fungi during root decomposition. Interestingly, we found substantially more fungal taxa with unknown ecology in late stages of root decomposition, indicating that highly decomposed roots may represent so far overlooked niche for soil fungi. Our study shows the importance of microhabitats on the fate of the decomposing spruce roots.
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Affiliation(s)
- Petr Kohout
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
- Institute of Botany of the Czech Academy of Sciences, Pruhonice, Czechia
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Prague, Czechia
| | - Radka Sudová
- Institute of Botany of the Czech Academy of Sciences, Pruhonice, Czechia
| | - Vendula Brabcová
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Stanislav Vosolsobě
- Institute of Botany of the Czech Academy of Sciences, Pruhonice, Czechia
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Prague, Czechia
| | - Petr Baldrian
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czechia
| | - Jana Albrechtová
- Institute of Botany of the Czech Academy of Sciences, Pruhonice, Czechia
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Prague, Czechia
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13
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Meng Y, Hui D, Huangfu C. Site conditions interact with litter quality to affect home-field advantage and rhizosphere effect of litter decomposition in a subtropical wetland ecosystem. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:141442. [PMID: 32836120 DOI: 10.1016/j.scitotenv.2020.141442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/16/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
The home-field advantage (HFA) hypothesis predicts that plant litter would decompose more quickly beneath its own plant species in the soil than beneath other plant species. Theoretically, HFA can be induced by the rhizosphere of growing plants, due to so-called rhizosphere effect (RE). Despite growing evidence for the site condition-dependence of both effects, few work has be conducted to explore how site climate, vegetation type and soil properties interact to affect RE and HFA, and especially limited in situ representation from subtropical wetland systems. In a field experiment, we reciprocally incubated three root litter species (Rumex dentatus L., Carex thunbergii Steud., and Polygonum cripolitanum Hance) along a hydroperiod gradient in a subtropical wetland, which differed mainly with respect to vegetation and soil microclimate, with and without growing plants. The occurrence and magnitude of HFA and RE were mainly determined by litter quality and were stage-specific. Collectively, we detected significant HFA with chemically-recalcitrant litter from C. thunbergii and P. cripolitanum, but only at the first stage of decomposition. The presence of growing plants generally reduced litter decomposition, but the magnitude of the response was species-specific, with the positive effects detected only for root litters from C. thunbergii at the first stage of decomposition. In addition, we did not find a significant relationship between HFA and RE, indicating that plant species that produce litters exhibiting HFA may not accelerate litter decomposition via RE at same time. Structural equation models (SEM) revealed that site microclimate factors were conducive with soil properties in regulating C dynamics. Overall, soil microclimate in this wetland ecosystem was likely important in driving C cycling, either directly by changing environmental conditions, litter quality, and plant trait spectra, or indirectly by interrupting the interactions between litter and decomposers.
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Affiliation(s)
- Yingying Meng
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China
| | - Dafeng Hui
- Department of Biological Sciences, Tennessee State University, Nashville, TN 37209, USA
| | - Chaohe Huangfu
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China.
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14
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Long-term decomposition of litter in the montane forest and the definition of fungal traits in the successional space. FUNGAL ECOL 2020. [DOI: 10.1016/j.funeco.2020.100913] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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15
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Pieristè M, Neimane S, Solanki T, Nybakken L, Jones AG, Forey E, Chauvat M, Ņečajeva J, Robson TM. Ultraviolet radiation accelerates photodegradation under controlled conditions but slows the decomposition of senescent leaves from forest stands in southern Finland. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 146:42-54. [PMID: 31731113 DOI: 10.1016/j.plaphy.2019.11.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Depending on the environment, sunlight can positively or negatively affect litter decomposition, through the ensemble of direct and indirect processes constituting photodegradation. Which of these processes predominate depends on the ecosystem studied and on the spectral composition of sunlight received. To examine the relevance of photodegradation for litter decomposition in forest understoreys, we filtered ultraviolet radiation (UV) and blue light from leaves of Fagus sylvatica and Betula pendula at two different stages of senescence in both a controlled-environment experiment and outdoors in four different forest stands (Picea abies, Fagus sylvatica, Acer platanoides, Betula pendula). Controlling for leaf orientation and initial differences in leaf chlorophyll and flavonol concentrations; we measured mass loss at the end of each experiment and characterised the phenolic profile of the leaf litter following photodegradation. In most forest stands, less mass was lost from decomposing leaves that received solar UV radiation compared with those under UV-attenuating filters, while in the controlled environment UV-A radiation either slightly accelerated or had no significant effect on photodegradation, according to species identity. Only a few individual phenolic compounds were affected by our different filter treatments, but photodegradation did affect the phenolic profile. We can conclude that photodegradation has a small stand- and species-specific effect on the decomposition of surface leaf litter in forest understoreys during the winter following leaf fall in southern Finland. Photodegradation was wavelength-dependent and modulated by the canopy species filtering sunlight and likely creating different combinations of spectral composition, moisture, temperature and snowpack characteristics.
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Affiliation(s)
- Marta Pieristè
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), Faculty of Biological and Environmental Science, P.O. Box 65, 00014, University of Helsinki, Finland; Normandie Université, UNIROUEN, Ecodiv URA/EA1293, IRSTEA, FR Scale CNRS 3730, Rouen, France
| | - Santa Neimane
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), Faculty of Biological and Environmental Science, P.O. Box 65, 00014, University of Helsinki, Finland; Department of Plant Physiology, University of Latvia, Jelgavas Street 1, LV-1004, Riga, Latvia; Latvian State Forest Research Institute (Silava), Rīgas Iela 111, Salaspils, Salaspils Pilsēta, LV-2169, Latvia
| | - Twinkle Solanki
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), Faculty of Biological and Environmental Science, P.O. Box 65, 00014, University of Helsinki, Finland
| | - Line Nybakken
- Faculty of Environmental Sciences and Natural Resource Management, CERAD, Norwegian University of Life Sciences, 1432, Ås, Norway
| | - Alan G Jones
- Forest Systems, Scion. 49 Sala Street, Private Bag 3020, Rotorua, 3046, New Zealand
| | - Estelle Forey
- Normandie Université, UNIROUEN, Ecodiv URA/EA1293, IRSTEA, FR Scale CNRS 3730, Rouen, France
| | - Matthieu Chauvat
- Normandie Université, UNIROUEN, Ecodiv URA/EA1293, IRSTEA, FR Scale CNRS 3730, Rouen, France
| | - Jevgenija Ņečajeva
- Department of Plant Physiology, University of Latvia, Jelgavas Street 1, LV-1004, Riga, Latvia
| | - T Matthew Robson
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), Faculty of Biological and Environmental Science, P.O. Box 65, 00014, University of Helsinki, Finland.
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16
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Asplund J, Kauserud H, Ohlson M, Nybakken L. Spruce and beech as local determinants of forest fungal community structure in litter, humus and mineral soil. FEMS Microbiol Ecol 2019; 95:5211046. [PMID: 30481314 DOI: 10.1093/femsec/fiy232] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 11/26/2018] [Indexed: 12/31/2022] Open
Abstract
Beech forests reaches its native distribution limit in SE Norway, but is expected to expand substantially northwards due to climate warming. This may potentially result in a fundamental transformation of contemporary Northern European forests, with tentative effects on the associated belowground fungi. Fungal communities mediate vital ecosystem processes such as ecosystem productivity and carbon sequestration in boreal forests. To investigate how soil fungi is affected by the vegetation transition from spruce to beech forest, we sampled litter, humus and mineral soil in a forest landscape dominated by beech, spruce or a mixture of these. The fungal communities in the soil samples were analyzed by DNA metabarcoding of the rDNA ITS2 region. Although soil layers were the most important structuring gradient, we found clear differences in fungal species composition between spruce and beech plots. The differences in fungal community composition were most evident in the litter and least in the mineral soil. Decomposers, most notably Mycena, dominated the litter layer while various mycorrhizal fungi dominated the humus and mineral layers. Some ectomycorrhizal taxa, such as Cenoccocum and Russula, were more abundant in spruce forests. Differences in fungal community composition between forest types can potentially have large impacts on carbon sequestration rates.
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Affiliation(s)
- Johan Asplund
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
| | - Håvard Kauserud
- Section for Genetics and Evolutionary Biology (Evogene), Department of Biology, University of Oslo, P.O. Box 1066 Blindern, NO-0316 Oslo, Norway
| | - Mikael Ohlson
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
| | - Line Nybakken
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, NO-1432 Ås, Norway
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17
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Succession of litter-decomposing microbial organisms in deciduous birch and oak forests, northern Japan. ACTA OECOLOGICA 2019. [DOI: 10.1016/j.actao.2019.103485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Bani A, Borruso L, Matthews Nicholass KJ, Bardelli T, Polo A, Pioli S, Gómez-Brandón M, Insam H, Dumbrell AJ, Brusetti L. Site-Specific Microbial Decomposer Communities Do Not Imply Faster Decomposition: Results from a Litter Transplantation Experiment. Microorganisms 2019; 7:microorganisms7090349. [PMID: 31547404 PMCID: PMC6780308 DOI: 10.3390/microorganisms7090349] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/09/2019] [Accepted: 09/09/2019] [Indexed: 12/28/2022] Open
Abstract
Microbes drive leaf litter decomposition, and their communities are adapted to the local vegetation providing that litter. However, whether these local microbial communities confer a significant home-field advantage in litter decomposition remains unclear, with contrasting results being published. Here, we focus on a litter transplantation experiment from oak forests (home site) to two away sites without oak in South Tyrol (Italy). We aimed to produce an in-depth analysis of the fungal and bacterial decomposer communities using Illumina sequencing and qPCR, to understand whether local adaptation occurs and whether this was associated with litter mass loss dynamics. Temporal shifts in the decomposer community occurred, reflecting changes in litter chemistry over time. Fungal community composition was site dependent, while bacterial composition did not differ across sites. Total litter mass loss and rates of litter decomposition did not change across sites. Litter quality influenced the microbial community through the availability of different carbon sources. Additively, our results do not support the hypothesis that locally adapted microbial decomposers lead to a greater or faster mass loss. It is likely that high functional redundancy within decomposer communities regulated the decomposition, and thus greater future research attention should be given to trophic guilds rather than taxonomic composition.
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Affiliation(s)
- Alessia Bani
- Faculty of Science and Technology, Free University of Bozen/Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK.
| | - Luigimaria Borruso
- Faculty of Science and Technology, Free University of Bozen/Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | | | - Tommaso Bardelli
- Department of Agrifood and Environmental Science, University of Florence, Piazzale delle Cascine 18, 50144 Florence, Italy.
- Institute of Microbiology, University of Innsbruck, Technikerstraβe 25d, 6020 Innsbruck, Austria.
| | - Andrea Polo
- Faculty of Science and Technology, Free University of Bozen/Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | - Silvia Pioli
- Faculty of Science and Technology, Free University of Bozen/Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | - María Gómez-Brandón
- Institute of Microbiology, University of Innsbruck, Technikerstraβe 25d, 6020 Innsbruck, Austria.
- Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, E-36310 Vigo, Spain.
| | - Heribert Insam
- Institute of Microbiology, University of Innsbruck, Technikerstraβe 25d, 6020 Innsbruck, Austria.
| | - Alex J Dumbrell
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK.
| | - Lorenzo Brusetti
- Faculty of Science and Technology, Free University of Bozen/Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
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19
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Pieristè M, Chauvat M, Kotilainen TK, Jones AG, Aubert M, Robson TM, Forey E. Solar UV-A radiation and blue light enhance tree leaf litter decomposition in a temperate forest. Oecologia 2019; 191:191-203. [PMID: 31363838 PMCID: PMC6732127 DOI: 10.1007/s00442-019-04478-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/23/2019] [Indexed: 11/30/2022]
Abstract
Sunlight can accelerate the decomposition process through an ensemble of direct and indirect processes known as photodegradation. Although photodegradation is widely studied in arid environments, there have been few studies in temperate regions. This experiment investigated how exposure to solar radiation, and specifically UV-B, UV-A, and blue light, affects leaf litter decomposition under a temperate forest canopy in France. For this purpose, we employed custom-made litterbags built using filters that attenuated different regions of the solar spectrum. Litter mass loss and carbon to nitrogen (C:N) ratio of three species: European ash (Fraxinus excelsior), European beech (Fagus sylvatica) and pedunculate oak (Quercus robur), differing in their leaf traits and decomposition rate, were analysed over a period of 7–10 months. Over the entire period, the effect of treatments attenuating blue light and solar UV radiation on leaf litter decomposition was similar to that of our dark treatment, where litter lost 20–30% less mass and had a lower C:N ratio than under the full-spectrum treatment. Moreover, decomposition was affected more by the filter treatment than mesh size, which controlled access by mesofauna. The effect of filter treatment differed among the three species and appeared to depend on litter quality (and especially C:N), producing the greatest effect in recalcitrant litter (F. sylvatica). Even under the reduced irradiance found in the understorey of a temperate forest, UV radiation and blue light remain important in accelerating surface litter decomposition.
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Affiliation(s)
- Marta Pieristè
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, P.O. Box 65, Viikinkaari1, 00014, Helsinki, Finland. .,Normandie Université, UNIROUEN, IRSTEA, ECODIV, FR Scale CNRS 3730, Rouen, France.
| | - Matthieu Chauvat
- Normandie Université, UNIROUEN, IRSTEA, ECODIV, FR Scale CNRS 3730, Rouen, France
| | - Titta K Kotilainen
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, P.O. Box 65, Viikinkaari1, 00014, Helsinki, Finland.,Natural Resources Institute Finland, Itäinen Pitkäkatu 4a, 20520, Turku, FI, Finland
| | - Alan G Jones
- Earthwatch Institute, Mayfield House, 256 Banbury Road, Oxford, OX2 7DE, UK.,Forest Systems, Scion. 49 Sala Street, Private Bag 3020, Rotorua, 3046, New Zealand
| | - Michaël Aubert
- Normandie Université, UNIROUEN, IRSTEA, ECODIV, FR Scale CNRS 3730, Rouen, France
| | - T Matthew Robson
- Organismal and Evolutionary Biology (OEB), Viikki Plant Science Centre (ViPS), University of Helsinki, P.O. Box 65, Viikinkaari1, 00014, Helsinki, Finland
| | - Estelle Forey
- Normandie Université, UNIROUEN, IRSTEA, ECODIV, FR Scale CNRS 3730, Rouen, France
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20
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Fungal diversity notes 1036–1150: taxonomic and phylogenetic contributions on genera and species of fungal taxa. FUNGAL DIVERS 2019. [DOI: 10.1007/s13225-019-00429-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Abstract
Fungi are some of the most diverse organisms on earth and since prehistoric times have played an important role in human society. In recent years they have become a strategic asset not only in the conservation and management of ecosystems but also as a resource for halting the exodus from rural areas in peripheral Mediterranean regions, such as inland eastern Spain. In view of this important ecological and socioeconomic role, in this paper we present a geographical analysis of edible fungi, paying particular attention to the Spanish case. To this end we carried out a bibliographic review of the climatic factors affecting the fruiting of these fungi and the socioeconomic aspects of their commercial exploitation. We also performed an online search for mycotourism-related activities and explored the statistical data on the cultivation of edible mushrooms and its economic impact. Our main findings include a synthesis of the international research on the effects of climatic variability on the natural production of macrofungi, and an assessment of the economic viability and the social importance of mushrooms in Spain, in particular in relation to the current and future potential of mushroom cultivation and the multifunctional management and use of forests.
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