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Quattrone A, Yang Y, Yadav P, Weber KA, Russo SE. Nutrient and Microbiome-Mediated Plant-Soil Feedback in Domesticated and Wild Andropogoneae: Implications for Agroecosystems. Microorganisms 2023; 11:2978. [PMID: 38138123 PMCID: PMC10745641 DOI: 10.3390/microorganisms11122978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023] Open
Abstract
Plants influence the abiotic and biotic environment of the rhizosphere, affecting plant performance through plant-soil feedback (PSF). We compared the strength of nutrient and microbe-mediated PSF and its implications for plant performance in domesticated and wild grasses with a fully crossed greenhouse PSF experiment using four inbred maize genotypes (Zea mays ssp. mays b58, B73-wt, B73-rth3, and HP301), teosinte (Z. mays ssp. parviglumis), and two wild prairie grasses (Andropogon gerardii and Tripsacum dactyloides) to condition soils for three feedback species (maize B73-wt, teosinte, Andropogon gerardii). We found evidence of negative PSF based on growth, phenotypic traits, and foliar nutrient concentrations for maize B73-wt, which grew slower in maize-conditioned soil than prairie grass-conditioned soil. In contrast, teosinte and A. gerardii showed few consistent feedback responses. Both rhizobiome and nutrient-mediated mechanisms were implicated in PSF. Based on 16S rRNA gene amplicon sequencing, the rhizosphere bacterial community composition differed significantly after conditioning by prairie grass and maize plants, and the final soil nutrients were significantly influenced by conditioning, more so than by the feedback plants. These results suggest PSF-mediated soil domestication in agricultural settings can develop quickly and reduce crop productivity mediated by PSF involving changes to both the soil rhizobiomes and nutrient availability.
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Affiliation(s)
- Amanda Quattrone
- Complex Biosystems Ph.D. Program, University of Nebraska-Lincoln, Lincoln, NE 68583-0851, USA
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0118, USA; (Y.Y.)
- Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, NE 68583-0705, USA
| | - Yuguo Yang
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0118, USA; (Y.Y.)
| | - Pooja Yadav
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0118, USA; (Y.Y.)
| | - Karrie A. Weber
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0118, USA; (Y.Y.)
- Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, USA
- Daugherty Water for Food Institute, University of Nebraska, Lincoln, NE 68588-6203, USA
| | - Sabrina E. Russo
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE 68588-0118, USA; (Y.Y.)
- Center for Plant Science Innovation, University of Nebraska-Lincoln, Lincoln, NE 68583-0705, USA
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Min K, Zheng T, Zhu X, Bao X, Lynch L, Liang C. Bacterial community structure and assembly dynamics hinge on plant litter quality. FEMS Microbiol Ecol 2023; 99:fiad118. [PMID: 37771081 DOI: 10.1093/femsec/fiad118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 06/29/2023] [Accepted: 09/28/2023] [Indexed: 09/30/2023] Open
Abstract
Litter decomposition is a fundamental ecosystem process controlling the biogeochemical cycling of energy and nutrients. Using a 360-day lab incubation experiment to control for environmental factors, we tested how litter quality (low C/N deciduous vs. high C/N coniferous litter) governed the assembly and taxonomic composition of bacterial communities and rates of litter decomposition. Overall, litter mass loss was significantly faster in soils amended with deciduous (DL) rather than coniferous (CL) litter. Communities degrading DL were also more taxonomically diverse and exhibited stochastic assembly throughout the experiment. By contrast, alpha-diversity rapidly declined in communities exposed to CL. Strong environmental selection and competitive biological interactions induced by molecularly complex, nutrient poor CL were reflected in a transition from stochastic to deterministic assembly after 180 days. Constraining how the diversity and assembly of microbial populations modulates core ecosystem processes, such as litter decomposition, will become increasingly important under novel climate conditions, and as policymakers and land managers emphasize soil carbon sequestration as a key natural climate solution.
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Affiliation(s)
- Kaikai Min
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Tiantian Zheng
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Xuefeng Zhu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Xuelian Bao
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Laurel Lynch
- Department of Soil and Water Systems, University of Idaho, Moscow, ID 83844, USA
| | - Chao Liang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
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3
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Inoculation with Azospirillum brasilense in corn cultivated on cover crops and nitrogen doses. Symbiosis 2022. [DOI: 10.1007/s13199-022-00870-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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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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Luan J, Li S, Dong W, Liu Y, Wang Y, Liu S. Litter decomposition affected by bamboo expansion is modulated by litter‐mixing and microbial composition. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13911] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junwei Luan
- Institute of Resources and EnvironmentKey Laboratory of Bamboo and Rattan Science and Technology of State Forestry and Grassland Administration, International Centre for Bamboo and Rattan Beijing PR China
| | - Siyu Li
- Institute of Resources and EnvironmentKey Laboratory of Bamboo and Rattan Science and Technology of State Forestry and Grassland Administration, International Centre for Bamboo and Rattan Beijing PR China
| | - Wei Dong
- School of Resources and Environmental Engineering Jiangxi University of Science and Technology Ganzhou PR China
| | - Yanchun Liu
- School of Life Sciences Henan University Kaifeng PR China
| | - Yi Wang
- Institute of Resources and EnvironmentKey Laboratory of Bamboo and Rattan Science and Technology of State Forestry and Grassland Administration, International Centre for Bamboo and Rattan Beijing PR China
| | - Shirong Liu
- The Research Institute of Forest Ecology, Environment and Protection Chinese Academy of Forestry Beijing PR China
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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: 22] [Impact Index Per Article: 7.3] [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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Functional rarity and evenness are key facets of biodiversity to boost multifunctionality. Proc Natl Acad Sci U S A 2021; 118:2019355118. [PMID: 33568533 DOI: 10.1073/pnas.2019355118] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The functional traits of organisms within multispecies assemblages regulate biodiversity effects on ecosystem functioning. Yet how traits should assemble to boost multiple ecosystem functions simultaneously (multifunctionality) remains poorly explored. In a multibiome litter experiment covering most of the global variation in leaf trait spectra, we showed that three dimensions of functional diversity (dispersion, rarity, and evenness) explained up to 66% of variations in multifunctionality, although the dominant species and their traits remained an important predictor. While high dispersion impeded multifunctionality, increasing the evenness among functionally dissimilar species was a key dimension to promote higher multifunctionality and to reduce the abundance of plant pathogens. Because too-dissimilar species could have negative effects on ecosystems, our results highlight the need for not only diverse but also functionally even assemblages to promote multifunctionality. The effect of functionally rare species strongly shifted from positive to negative depending on their trait differences with the dominant species. Simultaneously managing the dispersion, evenness, and rarity in multispecies assemblages could be used to design assemblages aimed at maximizing multifunctionality independently of the biome, the identity of dominant species, or the range of trait values considered. Functional evenness and rarity offer promise to improve the management of terrestrial ecosystems and to limit plant disease risks.
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Lin D, Dou P, Yang G, Qian S, Wang H, Zhao L, Yang Y, Mi X, Ma K, Fanin N. Home-field advantage of litter decomposition differs between leaves and fine roots. THE NEW PHYTOLOGIST 2020; 227:995-1000. [PMID: 32133658 DOI: 10.1111/nph.16517] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Affiliation(s)
- Dunmei Lin
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Pengpeng Dou
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Guangrong Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Shenhua Qian
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Hongjuan Wang
- Biotechnology Research Centre, Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China
| | - Liang Zhao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Yongchuan Yang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400045, China
| | - Xiangcheng Mi
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
| | - Keping Ma
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
| | - Nicolas Fanin
- Interaction Soil Plant Atmosphere (ISPA), UMR 1391, INRAE - Bordeaux Sciences Agro, 71 Avenue Edouard Bourlaux, 33882, Villenave-d'Ornon cedex, France
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The Impact of Water-Soluble Inorganic Ions in Particulate Matter (PM2.5) on Litter Decomposition in Chinese Subtropical Forests. FORESTS 2020. [DOI: 10.3390/f11020238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Although numerous studies have demonstrated the toxic effects of fine particulates less than 2.5 µm (PM2.5) on the health of humans, little information is available on the ecotoxicity of PM2.5. Water-soluble inorganic ions (WSII, including Na+, NH4+, K+, Mg2+, Ca2+, Cl−, NO3−, and SO42−) can compose more than 60% of PM2.5. To better understand the possible impacts of WSII-PM2.5 on leaf litter decomposition, we conducted an experiment in which two leaf litters from oak (Quercus variabilis) and pine (Pinus massoniana) dominant forests in subtropical China were incubated in microcosms containing their respective forest soils and treated with WSII-PM2.5. Our results showed that, after six-months of decomposition, the WSII-PM2.5 treatments inhibited leaf litter decomposition rates, carbon and nitrogen loss, microbial biomass, and enzyme activities in the two forests. In addition, higher WSII-PM2.5 concentration led to stronger negative effects. Comparative analysis showed that the negative effects of WSII-PM2.5 on oak forest were greater than on pine forest, relating to the higher susceptibility to changes of soil microenvironment in oak forests. WSII-PM2.5 may influence decomposition through soil acidification and salinization, which could also cause a sub-lethal depression in soil isopod activity. However, in the first month of decomposition, mass loss of the oak and pine leaf litters under the low concentration WSII-PM2.5 were 21.63% and 35.64% higher than that under the control, respectively. This suggests that transitory low concentrations of WSII-PM2.5 have a promoting effect on decomposition. Long-term PM2.5 exposure, therefore, may have profound ecosystem consequences by altering the balance of ecosystem carbon flux, nutrient cycling, and humus formation in the future.
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The Origin, Succession, and Predicted Metabolism of Bacterial Communities Associated with Leaf Decomposition. mBio 2019; 10:mBio.01703-19. [PMID: 31481384 PMCID: PMC6722416 DOI: 10.1128/mbio.01703-19] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Community ecologists have traditionally treated individuals within a species as uniform, with individual-level biodiversity rarely considered as a regulator of community and ecosystem function. In our study system, we have documented clear evidence of within-species variation causing local ecosystem adaptation to fluxes across ecosystem boundaries. In this striking pattern of a “home-field advantage,” leaves from individual trees tend to decompose most rapidly when immediately adjacent to their parent tree. Here, we merge community ecology experiments with microbiome approaches to describe how bacterial communities adjust to within-species variation in leaves over spatial scales of less than a kilometer. The results show that bacterial community compositional changes facilitate rapid ecosystem responses to environmental change, effectively maintaining high rates of carbon and nutrient cycling through ecosystems. Intraspecific variation in plant nutrient and defensive traits can regulate ecosystem-level processes, such as decomposition and transformation of plant carbon and nutrients. Understanding the regulatory mechanisms of ecosystem functions at local scales may facilitate predictions of the resistance and resilience of these functions to change. We evaluated how riverine bacterial community assembly and predicted gene content corresponded to decomposition rates of green leaf inputs from red alder trees into rivers of Washington State, USA. Previously, we documented accelerated decomposition rates for leaves originating from trees growing adjacent to the site of decomposition versus more distant locales, suggesting that microbes have a “home-field advantage” in decomposing local leaves. Here, we identified repeatable stages of bacterial succession, each defined by dominant taxa with predicted gene content associated with metabolic pathways relevant to the leaf characteristics and course of decomposition. “Home” leaves contained bacterial communities with distinct functional capacities to degrade aromatic compounds. Given known spatial variation of alder aromatics, this finding helps explain locally accelerated decomposition. Bacterial decomposer communities adjust to intraspecific variation in leaves at spatial scales of less than a kilometer, providing a mechanism for rapid response to changes in resources such as range shifts among plant genotypes. Such rapid responses among bacterial communities in turn may maintain high rates of carbon and nutrient cycling through aquatic ecosystems.
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Veen GF(C, Snoek BL, Bakx‐Schotman T, Wardle DA, Putten WH. Relationships between fungal community composition in decomposing leaf litter and home‐field advantage effects. Funct Ecol 2019. [DOI: 10.1111/1365-2435.13351] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- G. F. (Ciska) Veen
- Department of Terrestrial Ecology Netherlands Institute of Ecology Wageningen The Netherlands
| | - Basten L. Snoek
- Department of Terrestrial Ecology Netherlands Institute of Ecology Wageningen The Netherlands
- Theoretical Biology and Bioinformatics Utrecht University Utrecht The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
| | - Tanja Bakx‐Schotman
- Department of Terrestrial Ecology Netherlands Institute of Ecology Wageningen The Netherlands
| | - David A. Wardle
- Asian School of the Environment Nanyang Technological University Singapore Singapore
- Department of Forest Ecology and Management Swedish University of Agricultural Sciences Umeå Sweden
| | - Wim H. Putten
- Department of Terrestrial Ecology Netherlands Institute of Ecology Wageningen The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
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12
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LeCraw RM, Srivastava DS. Biogeographic context dependence of trophic cascade strength in bromeliad food webs. Ecology 2019; 100:e02692. [PMID: 30868556 DOI: 10.1002/ecy.2692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/30/2019] [Accepted: 02/19/2019] [Indexed: 01/17/2023]
Abstract
Ecosystem functions and the biomass of lower trophic levels are frequently controlled by predators. The strength of top-down control in these trophic cascades can be affected by the identity and diversity of predators, prey, and resources, as well as environmental conditions such as temperature, moisture, and nutrient loading, which can all impact interaction strength between trophic levels. Few studies have been able to replicate a complete community over a large geographic area to compare the full trophic cascade in a manipulative experiment. Here, we identify geographic dependency in trophic cascade strength, and the driving factors and specific mechanisms behind it, by combining geographically replicated experiments with a novel approach of community analogues of common garden and transplant experiments. We studied a predator-detritivore-detritus food web in bromeliads in Puerto Rico, Costa Rica, and Brazil. We found that interaction strengths between resources, consumers, and predators were strongly site-specific, but the exact mechanism differed between trophic levels. Large bodied predators created strong interaction strengths between predator and consumer trophic levels, reducing consumer abundance regardless of the geographic location, whereas small-bodied predators created weak interactions with no impact on consumer abundances in any site. In contrast, the interaction strength between consumers and resources varied among sites, depending on the dominant species of leaf detritus. More labile leaf species in Costa Rica created a strong consumer-resource interaction and therefore strong trophic cascade, whereas tougher leaf species in Brazil created a weak consumer-resource interaction, and an overall weaker trophic cascade. Our study highlights the importance of replicating experiments over geographic scales to understand general patterns of ecological processes.
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Affiliation(s)
- Robin M LeCraw
- Department of Zoology & Biodiversity Research Centre, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia, V6T1Z4, Canada
| | - Diane S Srivastava
- Department of Zoology & Biodiversity Research Centre, University of British Columbia, 6270 University Boulevard, Vancouver, British Columbia, V6T1Z4, Canada
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Chávez-Vergara B, Merino A, González-Rodríguez A, Oyama K, García-Oliva F. Direct and legacy effects of plant-traits control litter decomposition in a deciduous oak forest in Mexico. PeerJ 2018; 6:e5095. [PMID: 29967746 PMCID: PMC6027662 DOI: 10.7717/peerj.5095] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 06/05/2018] [Indexed: 11/20/2022] Open
Abstract
Background Litter decomposition is a key process in the functioning of forest ecosystems, because it strongly controls nutrient recycling and soil fertility maintenance. The interaction between the litter chemical composition and the metabolism of the soil microbial community has been described as the main factor of the decomposition process based on three hypotheses: substrate-matrix interaction (SMI), functional breadth (FB) and home-field advantage (HFA). The objective of the present study was to evaluate the effect of leaf litter quality (as a direct plant effect, SMI hypothesis), the metabolic capacity of the microbial community (as a legacy effect, FB hypothesis), and the coupling between the litter quality and microbial activity (HFA hypothesis) on the litter decomposition of two contiguous deciduous oak species at a local scale. Methods To accomplish this objective, we performed a litterbag experiment in the field for 270 days to evaluate mass loss, leaf litter quality and microbial activity in a complete factorial design for litter quality and species site. Results The litter of Quercus deserticola had higher rate of decomposition independently of the site, while the site of Quercus castanea promoted a higher rate of decomposition independently of the litter quality, explained by the specialization of the soil microbial community in the use of recalcitrant organic compounds. The Home-Field Advantage Index was reduced with the decomposition date (22% and 4% for 30 and 270 days, respectively). Discussion We observed that the importance of the coupling of litter quality and microbial activity depends on decomposition stage. At the early decomposition stage, the home-advantage hypothesis explained the mass loss of litter; however, in the advanced decomposition stage, the litter quality and the metabolic capacity of the microbial community can be the key drivers.
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Affiliation(s)
- Bruno Chávez-Vergara
- Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Agustín Merino
- Escuela Politécnica Superior, Universidad de Santiago de Compostela, Lugo, Galicia, Spain
| | - Antonio González-Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico
| | - Ken Oyama
- Escuela Nacional de Estudios Superiores Unidad Morelia, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico
| | - Felipe García-Oliva
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico
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Szlavecz K, Chang CH, Bernard MJ, Pitz SL, Xia L, Ma Y, McCormick MK, Filley T, Yarwood SA, Yesilonis ID, Csuzdi C. Litter quality, dispersal and invasion drive earthworm community dynamics and forest soil development. Oecologia 2018; 188:237-250. [DOI: 10.1007/s00442-018-4205-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 06/06/2018] [Indexed: 10/14/2022]
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15
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Veen GF(C, Keiser AD, van der Putten WH, Wardle DA. Variation in home‐field advantage and ability in leaf litter decomposition across successional gradients. Funct Ecol 2018. [DOI: 10.1111/1365-2435.13107] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- G. F. (Ciska) Veen
- Department of Forest Ecology and ManagementSwedish University of Agricultural Sciences Umeå Sweden
- Department of Terrestrial EcologyNetherlands Institute of Ecology Wageningen The Netherlands
| | - Ashley D. Keiser
- Department of Ecology, Evolution, and Organismal BiologyIowa State University Ames Iowa
- Institute on the EnvironmentUniversity of Minnesota St. Paul Minnesota
| | - Wim H. van der Putten
- Department of Terrestrial EcologyNetherlands Institute of Ecology Wageningen The Netherlands
- Laboratory of NematologyWageningen University Wageningen The Netherlands
| | - David A. Wardle
- Department of Forest Ecology and ManagementSwedish University of Agricultural Sciences Umeå Sweden
- Asian School of the EnvironmentNanyang Technological University Singapore City Singapore
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16
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Micro-decomposer communities and decomposition processes in tropical lowlands as affected by land use and litter type. Oecologia 2018; 187:255-266. [PMID: 29497833 DOI: 10.1007/s00442-018-4103-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/22/2018] [Indexed: 10/17/2022]
Abstract
We investigated how the land-use change from rainforest into jungle rubber, intensive rubber and oil palm plantations affects decomposers and litter decomposition in Sumatra, Indonesia. Litterbags containing three litter types were placed into four land-use systems and harvested after 6 and 12 months. Litter mass loss and litter element concentrations were measured, and different microbial groups including bacteria, fungi and testate amoebae were studied. After 12 months 81, 65, 63 and 53% of litter exposed in rainforest, jungle rubber in oil palm and rubber plantations was decomposed. In addition to land use, litter decomposition varied strongly with litter type and short-term effects differed markedly from long-term effects. After 6 months, oil palm and rubber litter decomposed faster than rainforest litter, but after 12 months, decomposition of rainforest litter exceeded that of oil palm and rubber litter, reflecting adaptation of bacteria and fungi to decompose structural compounds in rainforest litter but not (or less) in rubber and oil palm litter. Bacterial and fungal community composition and testate amoeba species number and density varied strongly with litter type, but little with land use. However, community composition of testate amoebae was mainly affected by land use. Generally, changes in bacteria, fungi and testate amoebae were linked to changes in litter element concentrations, suggesting that element ratios of litter material as basal resource for the decomposer food web shape the structure of decomposer communities and decomposition processes via bottom-up forces. Overall, changing rainforest to monoculture plantations shifts the decomposer community structure and negatively affects litter decomposition.
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García‐Palacios P, Gattinger A, Bracht‐Jørgensen H, Brussaard L, Carvalho F, Castro H, Clément J, De Deyn G, D'Hertefeldt T, Foulquier A, Hedlund K, Lavorel S, Legay N, Lori M, Mäder P, Martínez‐García LB, Martins da Silva P, Muller A, Nascimento E, Reis F, Symanczik S, Paulo Sousa J, Milla R. Crop traits drive soil carbon sequestration under organic farming. J Appl Ecol 2018. [DOI: 10.1111/1365-2664.13113] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pablo García‐Palacios
- Departamento de Biología y Geología Física y Química Inorgánica y Analítica Área de Biodiversidad y Conservación Universidad Rey Juan Carlos Móstoles Spain
| | | | | | - Lijbert Brussaard
- Department of Soil Quality Wageningen University Wageningen The Netherlands
| | - Filipe Carvalho
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Helena Castro
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Jean‐Christophe Clément
- Laboratoire d'Ecologie Alpine UMR 5553 CNRS‐UGA‐USMB Université Grenoble Alpes Grenoble Cedex 09 France
- CARRTEL INRA Université Savoie Mont Blanc Thonon‐Les‐Bains France
| | - Gerlinde De Deyn
- Department of Soil Quality Wageningen University Wageningen The Netherlands
| | | | - Arnaud Foulquier
- Laboratoire d'Ecologie Alpine UMR 5553 CNRS‐UGA‐USMB Université Grenoble Alpes Grenoble Cedex 09 France
| | | | - Sandra Lavorel
- Laboratoire d'Ecologie Alpine UMR 5553 CNRS‐UGA‐USMB Université Grenoble Alpes Grenoble Cedex 09 France
| | - Nicolas Legay
- Laboratoire d'Ecologie Alpine UMR 5553 CNRS‐UGA‐USMB Université Grenoble Alpes Grenoble Cedex 09 France
- Ecole de la Nature et du Paysage INSA CVL Blois France
- CNRS CITERES UMR 7324 Tours France
| | - Martina Lori
- Research Institute of Organic Agriculture FiBL Frick Switzerland
| | - Paul Mäder
- Research Institute of Organic Agriculture FiBL Frick Switzerland
| | | | - Pedro Martins da Silva
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Adrian Muller
- Research Institute of Organic Agriculture FiBL Frick Switzerland
- Institute of Environmental Decisions IED Federal Institutes of Technology Zurich ETHZ Zurich Switzerland
| | - Eduardo Nascimento
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Filipa Reis
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Sarah Symanczik
- Research Institute of Organic Agriculture FiBL Frick Switzerland
| | - José Paulo Sousa
- Department of Life Sciences Centre for Functional Ecology University of Coimbra Coimbra Portugal
| | - Rubén Milla
- Departamento de Biología y Geología Física y Química Inorgánica y Analítica Área de Biodiversidad y Conservación Universidad Rey Juan Carlos Móstoles Spain
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18
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Bai Z, Ma Q, Dai Y, Yuan H, Ye J, Yu W. Spatial Heterogeneity of SOM Concentrations Associated with White-rot Versus Brown-rot Wood Decay. Sci Rep 2017; 7:13758. [PMID: 29062128 PMCID: PMC5653805 DOI: 10.1038/s41598-017-14181-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/05/2017] [Indexed: 11/08/2022] Open
Abstract
White- and brown-rot fungal decay via distinct pathways imparts characteristic molecular imprints on decomposing wood. However, the effect that a specific wood-rotting type of fungus has on proximal soil organic matter (SOM) accumulation remains unexplored. We investigated the potential influence of white- and brown-rot fungi-decayed Abies nephrolepis logs on forest SOM stocks (i.e., soil total carbon (C) and nitrogen (N)) and the concentrations of amino sugars (microbial necromass) at different depths and horizontal distances from decaying woody debris. The brown-rot fungal wood decay resulted in higher concentrations of soil C and N and a greater increase in microbial necromass (i.e., 1.3- to 1.7-fold greater) than the white-rot fungal wood decay. The white-rot sets were accompanied by significant differences in the proportions of the bacterial residue index (muramic acid%) with soil depth; however, the brown-rot-associated soils showed complementary shifts, primarily in fungal necromass, across horizontal distances. Soil C and N concentrations were significantly correlated with fungal rather than bacterial necromass in the brown-rot systems. Our findings confirmed that the brown-rot fungi-dominated degradation of lignocellulosic residues resulted in a greater SOM buildup than the white-rot fungi-dominated degradation.
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Affiliation(s)
- Zhen Bai
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Qiang Ma
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
| | - Yucheng Dai
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Haisheng Yuan
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Ji Ye
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Wantai Yu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
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19
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Li Y, Li Q, Yang J, Lü X, Liang W, Han X, Martijn Bezemer T. Home‐field advantages of litter decomposition increase with increasing N deposition rates: a litter and soil perspective. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12863] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ying‐Bin Li
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
- University of Chinese Academy of Sciences Beijing100049 China
| | - Qi Li
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
| | - Jun‐Jie Yang
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
| | - Xiao‐Tao Lü
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
| | - Wen‐Ju Liang
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
| | - Xing‐Guo Han
- Institute of Applied Ecology Chinese Academy of Sciences Shenyang110016 China
- State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing100093 China
| | - T. Martijn Bezemer
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) P.O. Box 50 Wageningen6700 AB The Netherlands
- Institute of Biology Section Plant Ecology and Phytochemistry Leiden University P.O. Box 9505 2300 RA Leiden The Netherlands
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20
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Lashermes G, Gainvors-Claisse A, Recous S, Bertrand I. Enzymatic Strategies and Carbon Use Efficiency of a Litter-Decomposing Fungus Grown on Maize Leaves, Stems, and Roots. Front Microbiol 2016; 7:1315. [PMID: 27617006 PMCID: PMC4999447 DOI: 10.3389/fmicb.2016.01315] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 08/09/2016] [Indexed: 01/29/2023] Open
Abstract
Soil microorganisms can control the soil cycles of carbon (C), and depending on their C-use efficiency (CUE), these microorganisms either contribute to C stabilization in soil or produce CO2 when decomposing organic matter. However, little is known regarding the enzyme investment of microbial decomposers and the effects on their CUE. Our objective was to elucidate the strategies of litter-decomposing fungi as a function of litter quality. Fungal biosynthesis and respiration were accounted for by quantifying the investment in enzyme synthesis and enzyme efficiency. The basidiomycete Phanerochaete chrysosporium was grown on the leaves, stems, and roots of maize over 126 days in controlled conditions. We periodically measured the fungal biomass, enzyme activity, and chemical composition of the remaining litter and continuously measured the evolved C–CO2. The CUE observed for the maize litter was highest in the leaves (0.63), intermediate in the roots (0.40), and lowest in the stems (0.38). However, the enzyme efficiency and investment in enzyme synthesis did not follow the same pattern. The amount of litter C decomposed per mole of C-acquiring hydrolase activity was 354 μg C in the leaves, 246 μg C in the roots, and 1541 μg C in the stems (enzyme efficiency: stems > leaves > roots). The fungus exhibited the highest investment in C-acquiring enzyme when grown on the roots and produced 40–80% less enzyme activity when grown on the stems and leaves (investment in enzymes: roots > leaves > stems). The CUE was dependent on the initial availability and replenishment of the soluble substrate fraction with the degradation products. The production of these compounds was either limited because of the low enzyme efficiency, which occurred in the roots, or because of the low investments in enzyme synthesis, which occurred in the stems. Fungal biosynthesis relied on the ability of the fungus to invest in enzyme synthesis and the efficient interactions between the enzymes and the substrate. The investment decreased when N was limited, whereas the efficiency of the C-acquiring enzymes was primarily explained by the hemicellulose content and its embedment in recalcitrant lignin linkages. Our results are crucial for modeling microbial allocation strategies.
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Affiliation(s)
- Gwenaëlle Lashermes
- INRA, UMR614 Fractionnement des AgroRessources et Environnement Reims, France
| | - Angélique Gainvors-Claisse
- Université Reims-Champagne Ardenne, UMR614 Fractionnement des AgroRessources et Environnement Reims, France
| | - Sylvie Recous
- INRA, UMR614 Fractionnement des AgroRessources et Environnement Reims, France
| | - Isabelle Bertrand
- INRA, UMR614 Fractionnement des AgroRessources et EnvironnementReims, France; INRA, UMR1222 Eco&SolsMontpellier, France
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