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Li K, Veen GF(C, ten Hooven FC, Harvey JA, van der Putten WH. Soil legacy effects of plants and drought on aboveground insects in native and range-expanding plant communities. Ecol Lett 2023; 26:37-52. [PMID: 36414536 PMCID: PMC10098829 DOI: 10.1111/ele.14129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 07/20/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Soils contain biotic and abiotic legacies of previous conditions that may influence plant community biomass and associated aboveground biodiversity. However, little is known about the relative strengths and interactions of the various belowground legacies on aboveground plant-insect interactions. We used an outdoor mesocosm experiment to investigate the belowground legacy effects of range-expanding versus native plants, extreme drought and their interactions on plants, aphids and pollinators. We show that plant biomass was influenced more strongly by the previous plant community than by the previous summer drought. Plant communities consisted of four congeneric pairs of natives and range expanders, and their responses were not unanimous. Legacy effects affected the abundance of aphids more strongly than pollinators. We conclude that legacies can be contained as soil 'memories' that influence aboveground plant community interactions in the next growing season. These soil-borne 'memories' can be altered by climate warming-induced plant range shifts and extreme drought.
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Affiliation(s)
- Keli Li
- Department of Terrestrial Ecology (NIOO‐KNAW)Netherlands Institute of EcologyWageningenthe Netherlands
- Laboratory of Nematology, Department of Plant SciencesWageningen UniversityWageningenthe Netherlands
| | - G. F. (Ciska) Veen
- Department of Terrestrial Ecology (NIOO‐KNAW)Netherlands Institute of EcologyWageningenthe Netherlands
| | - Freddy C. ten Hooven
- Department of Terrestrial Ecology (NIOO‐KNAW)Netherlands Institute of EcologyWageningenthe Netherlands
| | - Jeffrey A. Harvey
- Department of Terrestrial Ecology (NIOO‐KNAW)Netherlands Institute of EcologyWageningenthe Netherlands
- Department of Ecological Science, Section Animal EcologyVrije Universiteit AmsterdamAmsterdamthe Netherlands
| | - Wim H. van der Putten
- Department of Terrestrial Ecology (NIOO‐KNAW)Netherlands Institute of EcologyWageningenthe Netherlands
- Laboratory of Nematology, Department of Plant SciencesWageningen UniversityWageningenthe Netherlands
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2
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Song H, Liu Z, Cui H, Chen J, Chen S, Gao H, Yang X, Wang Y, Wang J, Liu K, Xiao S, An L, Nielsen UN. Contrasting influences of two dominant plants, Dasiphora fruticosa and Ligularia virguarea, on aboveground and belowground communities in an alpine meadow. Front Microbiol 2023; 14:1118789. [PMID: 37125161 PMCID: PMC10140320 DOI: 10.3389/fmicb.2023.1118789] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/27/2023] [Indexed: 05/02/2023] Open
Abstract
Soil organisms are abundant, phylogenetically and functionally diverse, and interact to catalyse and regulate critical soil processes. Understanding what structures belowground communities is therefore fundamental to gaining insight into ecosystem functioning. Dominant plants have been shown to influence belowground communities both directly and indirectly through changes in abiotic and biotic factors. In a field study, we used piecewise structural equation modelling to disentangle and compare the effects of a dominant allelopathic plant, Ligularia virgaurea, and a dominant facilitative plant, Dasiphora fruticosa, on understory plant, soil microbial and nematode community composition in an alpine meadow on the Tibetan plateau. Dasiphora fruticosa was associated with changes in edaphic variables (total nitrogen, soil organic carbon, pH and ammonium), understory plant and soil bacterial communities, whereas Ligularia virguarea was associated with increased soil ammonium content and soil fungal richness relative to dominant plant-free control plots. Moreover, nematode richness was significantly greater under D. fruticosa, with no change in nematode community composition. By contrast, nematode richness under Ligularia virgaurea was similar to that of dominant plant-free control plots, but nematode community composition differed from the control. The effects of both plants were predominantly direct rather than mediated by indirect pathways despite the observed effects on understory plant communities, soil properties and microbial assemblages. Our results highlight the importance of plants in determining soil communities and provide new insight to disentangle the complex above- and belowground linkages.
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Affiliation(s)
- Hongxian Song
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Ziyang Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Hanwen Cui
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Jingwei Chen
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Shuyan Chen
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
- *Correspondence: Shuyan Chen,
| | - Haining Gao
- College of Life Sciences and Engineering, Hexi University, Zhangye, Gansu, China
| | - Xiaoli Yang
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Yajun Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Jiajia Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Kun Liu
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Sa Xiao
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, Gansu, China
| | - Lizhe An
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Uffe N. Nielsen
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
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3
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Metabarcoding Approaches for Soil Eukaryotes, Protists, and Microfauna. Methods Mol Biol 2022; 2605:1-16. [PMID: 36520386 DOI: 10.1007/978-1-0716-2871-3_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] [Indexed: 12/23/2022]
Abstract
There have been major developments in the molecular characterization of soil protist and micrometazoan diversity, leading to a better understanding of these minute soil eukaryotes. Like in all newly developing research fields, several approaches are currently used in parallel to study these organisms. Here, we synthesize these various approaches and propose a best practice manual that should help researchers to efficiently target soil eukaryotic diversity as a whole. We cover the whole working pipeline, ranging from sampling to nucleic acids extraction to bioinformatic processing and sequence identification. Synchronous approaches to molecularly survey microbial-sized eukaryotes and other soil biodiversity groups are needed in order to provide a cumulative knowledge of soil biodiversity, as here shown for the soil eukaryome. This will be crucial in understanding the important ecosystem functions provided by soil biodiversity.
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4
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Yang Q, Veen GF(C, Wagenaar R, Manrubia M, ten Hooven FC, van der Putten WH. Temporal dynamics of range expander and congeneric native plant responses during and after extreme drought events. ECOL MONOGR 2022; 92:e1529. [PMID: 36590329 PMCID: PMC9787952 DOI: 10.1002/ecm.1529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/01/2021] [Accepted: 01/14/2022] [Indexed: 01/04/2023]
Abstract
Climate change is causing range shifts of many species to higher latitudes and altitudes and increasing their exposure to extreme weather events. It has been shown that range-shifting plant species may perform differently in new soil than related natives; however, little is known about how extreme weather events affect range-expanding plants compared to related natives. In this study we used outdoor mesocosms to study how range-expanding plant species responded to extreme drought in live soil from a habitat in a new range with and without live soil from a habitat in the original range (Hungary). During summer drought, the shoot biomass of the range-expanding plant community declined. In spite of this, in the mixed community, range expanders produced more shoot biomass than congeneric natives. In mesocosms with a history of range expanders in the previous year, native plants produced less biomass. Plant legacy or soil origin effects did not change the response of natives or range expanders to summer drought. During rewetting, range expanders had less biomass than congeneric natives but higher drought resilience (survival) in soils from the new range where in the previous year native plant species had grown. The biomass patterns of the mixed plant communities were dominated by Centaurea spp.; however, not all plant species within the groups of natives and of range expanders showed the general pattern. Drought reduced the litter decomposition, microbial biomass, and abundances of bacterivorous, fungivorous, and carnivorous nematodes. Their abundances recovered during rewetting. There was less microbial and fungal biomass, and there were fewer fungivorous nematodes in soils from the original range where range expanders had grown in the previous year. We concluded that in mixed plant communities of range expanders and congeneric natives, range expanders performed better, under both ambient and drought conditions, than congeneric natives. However, when considering the responses of individual species, we observed variations among pairs of congenerics, so that under the present mixed-community conditions there was no uniformity in responses to drought of range expanders versus congeneric natives. Range-expanding plant species reduced soil fungal biomass and the numbers of soil fungivorous nematodes, suggesting that the effects of range-expanding plant species can trickle up in the soil food web.
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Affiliation(s)
- Qiang Yang
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
- State Key Laboratory of Grassland Agro‐ecosystems, School of Life SciencesLanzhou UniversityLanzhouChina
| | - G. F. (Ciska) Veen
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
| | - Roel Wagenaar
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
| | - Marta Manrubia
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
| | - Freddy C. ten Hooven
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
| | - Wim H. van der Putten
- Department of Terrestrial EcologyNetherlands Institute of Ecology (NIOO‐KNAW)WageningenThe Netherlands
- Laboratory of Nematology, Department of Plant SciencesWageningen University (WUR)WageningenThe Netherlands
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5
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Analysis of Agricultural CO2 Emissions in Henan Province, China, Based on EKC and Decoupling. SUSTAINABILITY 2022. [DOI: 10.3390/su14031931] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Global warming caused by greenhouse gas emissions is highly concerning. Both the environmental Kuznets curve (EKC) hypothesis and decoupling analysis indicate a dynamic relationship between economic growth and environmental pollution, and each method has its own emphasis. The objective of this paper is to investigate the nexus between grain production and agricultural carbon emissions for the main grain-producing areas in China. Taking Henan Province, the second largest agricultural province, as an example, this paper examines the relationship between grain production and agricultural CO2 emissions during 2000–2019, using the EKC hypothesis and decoupling analysis. The results are as follows: (1) The estimation model of CO2 EKC shows the climbing stage of an inverted U-shaped relationship, which suggests that agricultural economic growth occurred at the cost of an increase in agricultural CO2 emissions in Henan Province during the past 20 years. (2) The results of the decoupling analysis show that incidences of weak decoupling and expansive coupling states took up most of the study period, accompanied by an occasionally strong decoupling state; decoupling and coupling states alternated irregularly, and no clear development trends were observed. (3) Considering the shape of the CO2 EKC and the decoupling state, environmental policies encouraged decoupling, but suffered from time lags and poor continuity; long-term incentives, such as an ecological compensation policy, could perhaps drive carbon emission reduction. On this basis, Chinese agricultural policy should combine environmentally targeted interventions with measures supporting production and farmers’ incomes, and environmental policy should also adapt to economic growth. Only when both supplement each other can sustainable agricultural goals be achieved.
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Potapov AM, Beaulieu F, Birkhofer K, Bluhm SL, Degtyarev MI, Devetter M, Goncharov AA, Gongalsky KB, Klarner B, Korobushkin DI, Liebke DF, Maraun M, Mc Donnell RJ, Pollierer MM, Schaefer I, Shrubovych J, Semenyuk II, Sendra A, Tuma J, Tůmová M, Vassilieva AB, Chen T, Geisen S, Schmidt O, Tiunov AV, Scheu S. Feeding habits and multifunctional classification of soil‐associated consumers from protists to vertebrates. Biol Rev Camb Philos Soc 2022; 97:1057-1117. [DOI: 10.1111/brv.12832] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 12/17/2022]
Affiliation(s)
- Anton M. Potapov
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Frédéric Beaulieu
- Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri‐Food Canada Ottawa ON K1A 0C6 Canada
| | - Klaus Birkhofer
- Department of Ecology Brandenburg University of Technology Karl‐Wachsmann‐Allee 6 03046 Cottbus Germany
| | - Sarah L. Bluhm
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Maxim I. Degtyarev
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Miloslav Devetter
- Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology Na Sádkách 702/7 37005 České Budějovice Czech Republic
| | - Anton A. Goncharov
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Konstantin B. Gongalsky
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Bernhard Klarner
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Daniil I. Korobushkin
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Dana F. Liebke
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Mark Maraun
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Rory J. Mc Donnell
- Department of Crop and Soil Science Oregon State University Corvallis OR 97331 U.S.A
| | - Melanie M. Pollierer
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Ina Schaefer
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
| | - Julia Shrubovych
- Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology Na Sádkách 702/7 37005 České Budějovice Czech Republic
- Institute of Systematics and Evolution of Animals PAS Slawkowska 17 Pl 31‐016 Krakow Poland
- State Museum Natural History of NAS of Ukraine Teatralna 18 79008 Lviv Ukraine
| | - Irina I. Semenyuk
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
- Joint Russian‐Vietnamese Tropical Center №3 Street 3 Thang 2, Q10 Ho Chi Minh City Vietnam
| | - Alberto Sendra
- Colecciones Entomológicas Torres‐Sala, Servei de Patrimoni Històric, Ajuntament de València València Spain
- Departament de Didàctica de les Cièncias Experimentals i Socials, Facultat de Magisteri Universitat de València València Spain
| | - Jiri Tuma
- Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology Na Sádkách 702/7 37005 České Budějovice Czech Republic
- Biology Centre CAS, Institute of Entomology Branisovska 1160/31 370 05 Ceske Budejovice Czech Republic
| | - Michala Tůmová
- Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology Na Sádkách 702/7 37005 České Budějovice Czech Republic
| | - Anna B. Vassilieva
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Ting‐Wen Chen
- Biology Centre of the Czech Academy of Sciences, Institute of Soil Biology Na Sádkách 702/7 37005 České Budějovice Czech Republic
| | - Stefan Geisen
- Department of Nematology Wageningen University & Research 6700ES Wageningen The Netherlands
| | - Olaf Schmidt
- UCD School of Agriculture and Food Science University College Dublin Belfield Dublin 4 Ireland
| | - Alexei V. Tiunov
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Stefan Scheu
- J.F. Blumenbach Institute of Zoology and Anthropology University of Göttingen Untere Karspüle 2 37073 Göttingen Germany
- Centre of Biodiversity and Sustainable Land Use Büsgenweg 1 37077 Göttingen Germany
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Kenmotsu H, Takabayashi E, Takase A, Hirose Y, Eki T. Use of universal primers for the 18S ribosomal RNA gene and whole soil DNAs to reveal the taxonomic structures of soil nematodes by high-throughput amplicon sequencing. PLoS One 2021; 16:e0259842. [PMID: 34780544 PMCID: PMC8592498 DOI: 10.1371/journal.pone.0259842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/28/2021] [Indexed: 12/04/2022] Open
Abstract
Nematodes are abundant metazoans that play crucial roles in nutrient recycle in the pedosphere. Although high-throughput amplicon sequencing is a powerful tool for the taxonomic profiling of soil nematodes, polymerase chain reaction (PCR) primers for amplification of the 18S ribosomal RNA (SSU) gene and preparation of template DNAs have not been sufficiently evaluated. We investigated nematode community structure in copse soil using four nematode-specific (regions 1–4) and two universal (regions U1 and U2) primer sets for the SSU gene regions with two DNAs prepared from copse-derived mixed nematodes and whole soil. The major nematode-derived sequence variants (SVs) identified in each region was detected in both template DNAs. Order level taxonomy and feeding type of identified nematode-derived SVs were distantly related between the two DNA preparations, and the region U2 was closely related to region 4 in the non-metric multidimensional scaling (NMDS) based on Bray-Curtis dissimilarity. Thus, the universal primers for region U2 could be used to analyze soil nematode communities. We further applied this method to analyze the nematodes living in two sampling sites of a sweet potato-cultivated field, where the plants were differently growing. The structure of nematode-derived SVs from the two sites was distantly related in the principal coordinate analysis (PCoA) with weighted unifrac distances, suggesting their distinct soil environments. The resultant ecophysiological status of the nematode communities in the copse and field on the basis of feeding behavior and maturity indices was fairly consistent with those of the copse- and the cultivated house garden-derived nematodes in prior studies. These findings will be useful for the DNA metabarcoding of soil eukaryotes, including nematodes, using soil DNAs.
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Affiliation(s)
- Harutaro Kenmotsu
- Molecular Genetics Laboratory, Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - Emi Takabayashi
- Molecular Genetics Laboratory, Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - Akinori Takase
- Molecular Genetics Laboratory, Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - Yuu Hirose
- Molecular Genetics Laboratory, Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi, Japan
- Research Center for Agrotechnology and Biotechnology, Toyohashi University of Technology, Toyohashi, Aichi, Japan
| | - Toshihiko Eki
- Molecular Genetics Laboratory, Department of Applied Chemistry and Life Science, Toyohashi University of Technology, Toyohashi, Aichi, Japan
- Research Center for Agrotechnology and Biotechnology, Toyohashi University of Technology, Toyohashi, Aichi, Japan
- * E-mail:
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8
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Kouser Y, Shah AA, Rasmann S. The functional role and diversity of soil nematodes are stronger at high elevation in the lesser Himalayan Mountain ranges. Ecol Evol 2021; 11:13793-13804. [PMID: 34707818 PMCID: PMC8525141 DOI: 10.1002/ece3.8061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 11/22/2022] Open
Abstract
Soil nematodes are a foremost component of terrestrial biodiversity; they display a whole gamut of trophic guilds and life strategies, and by their activity, affect major ecosystem process, such as organic matter degradation and carbon cycling. Based on nematodes' functional types, nematode community indices have been developed, and can be used to link variation in nematodes community composition and ecosystem processes. Yet, the use of these indices has been mainly restricted to anthropogenic stresses. In this study, we propose to expand the use of nematodes' derived ecological indices to link soil and climate properties with soil food webs, and ecosystem processes that all vary along steep elevation gradients. For this purpose, we explored how elevation affects the trophic and functional diversity of nematode communities sampled every 300 m, from about 1,000 m to 3,700 m above sea level, across four transects in the lesser Himalayan range of Jammu and Kashmir. We found that (a) the trophic and functional diversity of nematodes increases with elevation; (b) differences in nematodes communities generate habitat-specific functional diversity; (c) the maturity index (ΣMI) increases with elevation, while the enrichment index decreases, indicating less mature and less productive ecosystems, enhanced fungal-based energy flow, and a predominant role of nematodes in generating carbon influxes at high-elevation sites. We thus confirm that the functional contribution of soil nematodes to belowground ecosystem processes, including carbon and energy flow, is stronger at high elevation. Overall, this study highlights the central importance of nematodes in sustaining soil ecosystems and brings insights into their functional role, particularly in alpine and arctic soils.
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Affiliation(s)
- Yasmeen Kouser
- Department of ZoologyNematode Biodiversity and Genomics Research LabBaba Ghulam Shah Badshah UniversityRajouriIndia
| | - Ali Asghar Shah
- Department of ZoologyNematode Biodiversity and Genomics Research LabBaba Ghulam Shah Badshah UniversityRajouriIndia
| | - Sergio Rasmann
- Laboratory of Functional EcologyInstitute of BiologyUniversity of NeuchâtelNeuchâtelSwitzerland
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9
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Gao L, Wei C, Xu H, Liu X, Siemann E, Lu X. Latitudinal variation in the diversity and composition of various organisms associated with an exotic plant: the role of climate and plant invasion. THE NEW PHYTOLOGIST 2021; 231:1559-1569. [PMID: 34018617 DOI: 10.1111/nph.17479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
Climate and plant invasion can shape biotic communities at large spatial scales. Yet, how diverse groups of organisms associated with an invasive plant change simultaneously with latitude and the roles of climate and plant invasion remains unclear. We conducted a field survey of plants (native vs exotic), soil fungi (pathogenic, saprotrophic, arbuscular mycorrhiza fungi (AMF) and ectomycorrhizal (EcM) fungi) and arthropods (herbivores, predators and detritivores) associated with the invasive plant Alternanthera philoxeroides at 49 sites spanning 14 latitudinal degrees in China. Results showed that diversity and composition of these functional groups changed differently with latitude, partially due to their specific responses to climate, invasion of A. philoxeroides and other biotic environments. Moreover, A. philoxeroides invasion and/or composition of other plants, rather than climate, predicted the diversity and richness of major functional groups and partly explained variance in composition of putative fungal pathogens. Our results suggest that climate and plant invasion could affect the diversity and composition of diverse groups of organisms simultaneously and their relative importance might vary among functional groups. Thus, it is necessary to explore latitudinal patterns and underlying drivers of diverse groups of organisms simultaneously to improve our ability to predict and mitigate threats posed by plant invasion and climate change.
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Affiliation(s)
- Lunlun Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, 430070, China
- Institute of Invasion Biology, Agriculture & Ecological Safety, Huazhong Agricultural University, Hubei, 430070, China
- College of Plant Sciences & Technology, Huazhong Agricultural University, Hubei, 430070, China
| | - Chunqiang Wei
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, 430070, China
- School of Life Sciences, Central China Normal University, Hubei, 430079, China
- Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin, Guangxi, 541006, China
| | - Hao Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, 430070, China
- Institute of Invasion Biology, Agriculture & Ecological Safety, Huazhong Agricultural University, Hubei, 430070, China
- College of Plant Sciences & Technology, Huazhong Agricultural University, Hubei, 430070, China
| | - Xiaoyan Liu
- Institute of Invasion Biology, Agriculture & Ecological Safety, Huazhong Agricultural University, Hubei, 430070, China
- College of Plant Sciences & Technology, Huazhong Agricultural University, Hubei, 430070, China
| | - Evan Siemann
- Biosciences Department, Rice University, Houston, TX, 77005, USA
| | - Xinmin Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Hubei, 430070, China
- Institute of Invasion Biology, Agriculture & Ecological Safety, Huazhong Agricultural University, Hubei, 430070, China
- College of Plant Sciences & Technology, Huazhong Agricultural University, Hubei, 430070, China
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10
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Wilschut RA, Geisen S. Nematodes as Drivers of Plant Performance in Natural Systems. TRENDS IN PLANT SCIENCE 2021; 26:237-247. [PMID: 33214031 DOI: 10.1016/j.tplants.2020.10.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/23/2020] [Accepted: 10/20/2020] [Indexed: 05/21/2023]
Abstract
Nematodes form an important part of soil biodiversity as the most abundant and functionally diverse animals affecting plant performance. Most studies on plant-nematode interactions are focused on agriculture, while plant-nematode interactions in nature are less known. Here we highlight that nematodes can contribute to vegetation dynamics through direct negative effects on plants, and indirect positive effects through top-down predation on plant-associated organisms. Global change alters these interactions, of which better understanding is rapidly needed to better predict functional consequences. By expanding the knowledge of plant-nematode interactions in natural systems, an increase in basic understanding of key ecological topics such as plant-soil interactions and plant invasion dynamics will be obtained, while also increasing the insights and potential biotic repertoire to be applicable in sustainable plant management.
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Affiliation(s)
- Rutger A Wilschut
- Ecology Group, Department of Biology, University of Konstanz, Konstanz, Germany.
| | - Stefan Geisen
- Department of Nematology, Wageningen University and Research, Wageningen, The Netherlands.
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Thakur MP, Putten WH, Apon F, Angelini E, Vreš B, Geisen S. Resilience of rhizosphere microbial predators and their prey communities after an extreme heat event. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13696] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Madhav P. Thakur
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
- Terrestrial Ecology Group Institute of Ecology and Evolution University of Bern Bern Switzerland
| | - Wim H. Putten
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
| | - Fariha Apon
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
| | - Ezio Angelini
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
| | - Branko Vreš
- Biološki inštitut Jovana Hadžija ZRC SAZU Ljubljana Slovenia
| | - Stefan Geisen
- Department of Terrestrial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
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12
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Wilschut RA, Magnée KJH, Geisen S, van der Putten WH, Kostenko O. Plant population and soil origin effects on rhizosphere nematode community composition of a range-expanding plant species and a native congener. Oecologia 2020; 194:237-250. [PMID: 33009940 PMCID: PMC7561541 DOI: 10.1007/s00442-020-04749-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 09/02/2020] [Indexed: 12/01/2022]
Abstract
Climate change causes species range expansions to higher latitudes and altitudes. It is expected that, due to differences in dispersal abilities between plants and soil biota, range-expanding plant species will become associated with a partly new belowground community in their expanded range. Theory on biological invasions predicts that outside their native range, range-expanding plant species may be released from specialist natural enemies, leading to the evolution of enhanced defence against generalist enemies. Here we tested the hypothesis that expanded range populations of the range-expanding plant species Centaurea stoebe accumulate fewer root-feeding nematodes than populations from the original range. Moreover, we examined whether Centaurea stoebe accumulates fewer root-feeding nematodes in expanded range soil than in original range soil. We grew plants from three expanded range and three original range populations of C. stoebe in soil from the original and from the new range. We compared nematode communities of C. stoebe with those of C. jacea, a congeneric species native to both ranges. Our results show that expanded range populations of C. stoebe did not accumulate fewer root-feeding nematodes than populations from the original range, but that C. stoebe, unlike C. jacea, accumulated fewest root-feeding nematodes in expanded range soil. Moreover, when we examined other nematode feeding groups, we found intra-specific plant population effects on all these groups. We conclude that range-expanding plant populations from the expanded range were not better defended against root-feeding nematodes than populations from the original range, but that C. stoebe might experience partial belowground enemy release.
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Affiliation(s)
- Rutger A Wilschut
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands.
- Ecology Group, Department of Biology, University of Konstanz, Konstanz, The Netherlands.
| | - Kim J H Magnée
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Laboratory of Plant Breeding, Wageningen University and Research, Wageningen, The Netherlands
| | - S Geisen
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Laboratory of Nematology, Wageningen University and Research, Wageningen, The Netherlands
| | - W H van der Putten
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Laboratory of Nematology, Wageningen University and Research, Wageningen, The Netherlands
| | - O Kostenko
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
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13
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Koorem K, Snoek BL, Bloem J, Geisen S, Kostenko O, Manrubia M, Ramirez KS, Weser C, Wilschut RA, van der Putten WH. Community-level interactions between plants and soil biota during range expansion. THE JOURNAL OF ECOLOGY 2020; 108:1860-1873. [PMID: 32999508 PMCID: PMC7508040 DOI: 10.1111/1365-2745.13409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
Plant species that expand their range in response to current climate change will encounter soil communities that may hinder, allow or even facilitate plant performance. It has been shown repeatedly for plant species originating from other continents that these plants are less hampered by soil communities from the new than from the original range. However, information about the interactions between intra-continental range expanders and soil communities is sparse, especially at community level.Here we used a plant-soil feedback experiment approach to examine if the interactions between range expanders and soil communities change during range expansion. We grew communities of range-expanding and native plant species with soil communities originating from the original and new range of range expanders. In these conditioned soils, we determined the composition of fungi and bacteria by high-throughput amplicon sequencing of the ITS region and the 16S rRNA gene respectively. Nematode community composition was determined by microscopy-based morphological identification. Then we tested how these soil communities influence the growth of subsequent communities of range expanders and natives.We found that after the conditioning phase soil bacterial, fungal and nematode communities differed by origin and by conditioning plant communities. Despite differences in bacterial, fungal and nematode communities between original and new range, soil origin did not influence the biomass production of plant communities. Both native and range expanding plant communities produced most above-ground biomass in soils that were conditioned by plant communities distantly related to them. Synthesis. Communities of range-expanding plant species shape specific soil communities in both original and new range soil. Plant-soil interactions of range expanders in communities can be similar to the ones of their closely related native plant species.
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Affiliation(s)
- Kadri Koorem
- Netherlands Institute of Ecology Wageningen The Netherlands
- Department of Botany Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia
| | - Basten L Snoek
- Netherlands Institute of Ecology Wageningen The Netherlands
- Theoretical Biology and Bioinformatics Utrecht University Utrecht The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
| | - Janneke Bloem
- Netherlands Institute of Ecology Wageningen The Netherlands
- Department of Plant Sciences Wageningen University Wageningen The Netherlands
| | - Stefan Geisen
- Netherlands Institute of Ecology Wageningen The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
| | - Olga Kostenko
- Netherlands Institute of Ecology Wageningen The Netherlands
| | - Marta Manrubia
- Netherlands Institute of Ecology Wageningen The Netherlands
| | | | - Carolin Weser
- Netherlands Institute of Ecology Wageningen The Netherlands
| | - Rutger A Wilschut
- Netherlands Institute of Ecology Wageningen The Netherlands
- Ecology, Department of Biology University of Konstanz Konstanz Germany
| | - Wim H van der Putten
- Netherlands Institute of Ecology Wageningen The Netherlands
- Laboratory of Nematology Wageningen University Wageningen The Netherlands
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14
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Zhang Y, Li B, Wu J, Pennings SC. Contrasting latitudinal clines of nematode diversity in
Spartina alterniflora
salt marshes between native and introduced ranges. DIVERS DISTRIB 2020. [DOI: 10.1111/ddi.13054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Youzheng Zhang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary Institute of Biodiversity Science and Institute of Eco‐Chongming School of Life Sciences Fudan University Shanghai China
- Department of Biology and Biochemistry University of Houston Houston TX USA
| | - Bo Li
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary Institute of Biodiversity Science and Institute of Eco‐Chongming School of Life Sciences Fudan University Shanghai China
| | - Jihua Wu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary Institute of Biodiversity Science and Institute of Eco‐Chongming School of Life Sciences Fudan University Shanghai China
| | - Steven C. Pennings
- Department of Biology and Biochemistry University of Houston Houston TX USA
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15
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Schenk J, Geisen S, Kleinboelting N, Traunspurger W. Metabarcoding data allow for reliable biomass estimates in the most abundant animals on earth. METABARCODING AND METAGENOMICS 2019. [DOI: 10.3897/mbmg.3.46704] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Microscopic organisms are the dominant and most diverse organisms on Earth. Nematodes, as part of this microscopic diversity, are by far the most abundant animals and their diversity is equally high. Molecular metabarcoding is often applied to study the diversity of microorganisms, but has yet to become the standard to determine nematode communities. As such, the information metabarcoding provides, such as in terms of species coverage, taxonomic resolution and especially if sequence reads can be linked to the abundance or biomass of nematodes in a sample, has yet to be determined. Here, we applied metabarcoding using three primer sets located within ribosomal rRNA gene regions to target assembled mock-communities consisting of 18 different nematode species that we established in 9 different compositions. We determined abundances and biomass of all species added to examine if relative sequence abundance or biomass can be linked to relative sequence reads. We found that nematode communities are not equally represented by the three different primer sets and we found that relative read abundances almost perfectly correlated positively with relative species biomass for two of the primer sets. This strong biomass-read number correlation suggests that metabarcoding reads can reveal biomass information even amongst more complex nematode communities as present in the environment and possibly can be transferred to better study other groups of organisms. This biomass-read link is of particular importance for more reliably assessing nutrient flow through food-webs, as well as adjusting biogeochemical models through user-friendly and easily obtainable metabarcoding data.
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