Now showing 1 - 5 of 5
  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","11"],["dc.bibliographiccitation.volume","50"],["dc.contributor.author","Scharroba, Anika"],["dc.contributor.author","Dibbern, Doerte"],["dc.contributor.author","Huenninghaus, Maike"],["dc.contributor.author","Kramer, Susanne"],["dc.contributor.author","Moll, Julia"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Bonkowski, Michael"],["dc.contributor.author","Buscot, Francois"],["dc.contributor.author","Kandeler, Ellen"],["dc.contributor.author","Koller, Robert"],["dc.contributor.author","Krueger, Dirk"],["dc.contributor.author","Lueders, Tillmann"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Ruess, Liliane"],["dc.date.accessioned","2018-11-07T09:08:55Z"],["dc.date.available","2018-11-07T09:08:55Z"],["dc.date.issued","2012"],["dc.description.abstract","Soil food webs are important determinants for the carbon flow through terrestrial systems, with the trophic networks between microbes and microfaunal grazers forming the basis for processing plant resources. At an agricultural field site cropped with maize or wheat, plant carbon input to soil was experimentally manipulated by amendment with maize litter. The community structure of dominant micro-food web components, the bacteria, fungi, protozoa and nematodes, was investigated across a depth gradient comprising plough layer, rooted soil below plough horizon, and deeper root free soil. The community composition and diversity within micro-food webs, and the response to resource supply, were assessed in summer, the vegetation period with highest root exudation. In the plough layer amendment with plant residues increased microbial biomass as well as density of fan shaped amoeba morphotypes and of bacterial- and fungal-feeding nematodes. Diversity of food web assemblages was assessed by operational taxonomic units (OTU) for bacteria and fungi, protozoa morphotypes and nematode families. Changes in diversity were either not apparent (fungi, protozoa), negatively related to litter (bacteria) or positively linked to the presence of a specific crop plant (bacteria, nematodes). Based on nematode functional guilds and the related enrichment and structure index, general food web conditions were assigned as nutrient enriched, with a high degree of disturbance, and a dominance of the bacterial energy channel. In sum, litter amendment fostered the abundance but not the diversity of organisms as food webs remained bottom heavy with only small amounts of carbon conserved at higher trophic levels. Food web structure was more affected by the abiotic (soil profile) and biotic (crop plant) environment than by the supply with litter resources. (C) 2012 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.soilbio.2012.03.002"],["dc.identifier.isi","000305104400001"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26142"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0038-0717"],["dc.title","Effects of resource availability and quality on the structure of the micro-food web of an arable soil across depth"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","111"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Pedobiologia"],["dc.bibliographiccitation.lastpage","119"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Kramer, Susanne"],["dc.contributor.author","Marhan, Sven"],["dc.contributor.author","Ruess, Liliane"],["dc.contributor.author","Armbruster, Wolfgang"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Haslwimmer, Heike"],["dc.contributor.author","Kuzyakov, Yakov"],["dc.contributor.author","Pausch, Johanna"],["dc.contributor.author","Scheunemann, Nicole"],["dc.contributor.author","Schoene, Jochen"],["dc.contributor.author","Schmalwasser, Andreas"],["dc.contributor.author","Totsche, Kai Uwe"],["dc.contributor.author","Walker, Frank"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Kandeler, Ellen"],["dc.date.accessioned","2018-11-07T09:15:26Z"],["dc.date.available","2018-11-07T09:15:26Z"],["dc.date.issued","2012"],["dc.description.abstract","The origin and quantity of plant inputs to soil are primary factors controlling the size and structure of the soil microbial community. The present study aimed to elucidate and quantify the carbon (C) flow from both root and shoot litter residues into soil organic, extractable, microbial and fungal C pools. Using the shift in C stable isotope values associated with replacing C3 by C4 plants we followed root- vs. shoot litter-derived C resources into different soil C pools. We established the following treatments: Corn Maize (CM), Fodder Maize (FM), Wheat + maize Litter (WL) and Wheat (W) as reference. The Corn Maize treatment provided root- as well as shoot litter-derived C (without corn cobs) whereas Fodder Maize (FM) provided only root-derived C (aboveground shoot material was removed). Maize shoot litter was applied on the Wheat + maize Litter (WL) plots to trace the incorporation of C4 litter C into soil microorganisms. Soil samples were taken three times per year (summer, autumn, winter) over two growing seasons. Maize-derived C signal was detectable after three to six months in the following pools: soil organic C (C-org), extractable organic C (EOC), microbial biomass (C-mic) and fungal biomass (ergosterol). In spite of the lower amounts of root- than of shoot litter-derived C inputs, similar amounts were incorporated into each of the C pools in the FM and WL treatments, indicating greater importance of the root- than shoot litter-derived resources for the soil microorganisms as a basis for the belowground food web. In the CM plots twice as much maize-derived C was incorporated into the pools. After two years, maize-derived C in the CM treatment contributed 14.1, 24.7, 46.6 and 76.2% to C-org, EOC, C-mic and ergosterol pools, respectively. Fungi incorporated maize-derived C to a greater extent than did total soil microbial biomass. (c) 2011 Elsevier GmbH. All rights reserved."],["dc.description.sponsorship","DFG [FOR 918]"],["dc.identifier.doi","10.1016/j.pedobi.2011.12.001"],["dc.identifier.isi","000302984000006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27686"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Gmbh, Urban & Fischer Verlag"],["dc.relation.issn","0031-4056"],["dc.title","Carbon flow into microbial and fungal biomass as a basis for the belowground food web of agroecosystems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2018Journal Article
    [["dc.bibliographiccitation.firstpage","29"],["dc.bibliographiccitation.journal","Pedobiologia"],["dc.bibliographiccitation.lastpage","33"],["dc.bibliographiccitation.volume","69"],["dc.contributor.author","Pausch, Johanna"],["dc.contributor.author","Hünninghaus, Maike"],["dc.contributor.author","Kramer, Susanne"],["dc.contributor.author","Scharroba, Anika"],["dc.contributor.author","Scheunemann, Nicole"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Marhan, Sven"],["dc.contributor.author","Bonkowski, Michael"],["dc.contributor.author","Kandeler, Ellen"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Kuzyakov, Yakov"],["dc.contributor.author","Ruess, Liliane"],["dc.date.accessioned","2020-12-10T15:20:43Z"],["dc.date.available","2020-12-10T15:20:43Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.pedobi.2018.06.002"],["dc.identifier.issn","0031-4056"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72777"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Carbon budgets of top- and subsoil food webs in an arable system"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]
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  • 2017Journal Article
    [["dc.bibliographiccitation.artnumber","e0180264"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","PloS one"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Glavatska, Olena"],["dc.contributor.author","Müller, Karolin"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Schmalwasser, Andreas"],["dc.contributor.author","Kandeler, Ellen"],["dc.contributor.author","Scheu, Stefan"],["dc.contributor.author","Totsche, Kai Uwe"],["dc.contributor.author","Ruess, Liliane"],["dc.date.accessioned","2019-07-09T11:43:30Z"],["dc.date.available","2019-07-09T11:43:30Z"],["dc.date.issued","2017"],["dc.description.abstract","Soil food web structure and function is primarily determined by the major basal resources, which are living plant tissue, root exudates and dead organic matter. A field experiment was performed to disentangle the interlinkage of the root-and detritus-based soil food chains. An arable site was cropped either with maize, amended with maize shoot litter or remained bare soil, representing food webs depending on roots, aboveground litter and soil organic matter as predominant resource, respectively. The soil micro-food web, i.e. microorganisms and nematodes, was investigated in two successive years along a depth transect. The community composition of nematodes was used as model to determine the changes in the rhizosphere, detritusphere and bulk soil food web. In the first growing season the impact of treatments on the soil micro-food web was minor. In the second year plant-feeding nematodes increased under maize, whereas after harvest the Channel Index assigned promotion of the detritivore food chain, reflecting decomposition of root residues. The amendment with litter did not foster microorganisms, instead biomass of Gram-positive and Gram-negative bacteria as well as that of fungi declined in the rooted zone. Likely higher grazing pressure by nematodes reduced microbial standing crop as bacterial and fungal feeders increased. However, populations at higher trophic levels were not promoted, indicating limited flux of litter resources along the food chain. After two years of bare soil microbial biomass and nematode density remained stable, pointing to soil organic matter-based resources that allow bridging periods with deprivation. Nematode communities were dominated by opportunistic taxa that are competitive at moderate resource supply. In sum, removal of plants from the system had less severe effects than expected, suggesting considerable food web resilience to the disruption of both the root and detrital carbon channel, pointing to a legacy of organic matter resources in arable soils."],["dc.identifier.doi","10.1371/journal.pone.0180264"],["dc.identifier.pmid","28704438"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14547"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/58898"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","570"],["dc.title","Disentangling the root- and detritus-based food chain in the micro-food web of an arable soil by plant removal."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
    Details DOI PMID PMC
  • 2007Journal Article
    [["dc.bibliographiccitation.firstpage","2854"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","2864"],["dc.bibliographiccitation.volume","39"],["dc.contributor.author","Butenschoen, Olaf"],["dc.contributor.author","Poll, Christian"],["dc.contributor.author","Langel, Reinhard"],["dc.contributor.author","Kandeler, Ellen"],["dc.contributor.author","Marhan, Sven"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2018-11-07T10:57:32Z"],["dc.date.available","2018-11-07T10:57:32Z"],["dc.date.issued","2007"],["dc.description.abstract","The effect of endogeic earthworms (Octolasion tyrtaeum (Savigny)) on the translocation of litter-derived carbon into the upper layer of a mineral soil by fungi was investigated in a microcosm experiment. Arable soil with and without O. tyrtaeum was incubated with C-13/N-15-labelled rye leaves placed on plastic rings with gaze (64 mu m mesh size) to avoid incorporation of leaves by earthworms. The plastic rings were positioned either on or 3 cm above the soil surface, to distinguish between biotic and chemical/physical translocation of nutrients by fungi and leaching. Contact of leaves to the soil increased C-13 translocation, whereas presence of O. tyrtaeum reduced the incorporation of C-13 into the mineral soil in all treatments. Although biomass of O. tyrtaeum decreased during the experiment, more C-13 and N-15 was incorporated into earthworm tissue in treatments with contact of leaves to the soil. Contact of leaves to the soil and the presence of O. tyrtaeum increased cumulative (CO2)-C-13-C production by 18.2% and 14.1%, respectively. The concentration of the fungal bio-indicator ergosterol in the soil tended to be increased and that of the fungal-specific phospholipid fatty acid 18:2 omega 6 was significantly increased in treatments with contact of leaves to the soil. Earthworms reduced the concentration of ergosterol and 18:2 omega 6 in the soil by 14.0% and 43.2%, respectively. Total bacterial PLFAs in soil were also reduced in presence of O. tyrtaeum, but did not respond to the addition of the rye leaves. In addition, the bacterial community in treatments with O. tyrtaeum differed from that without earthworms and shifted towards an increased dominance of Gram-negative bacteria. The results indicate that litter-decomposing fungi translocate litter-derived carbon via their mycelial network in to the upper mineral soil. Endogeic earthworms decrease fungal biomass by grazing and disruption of fungal hyphae thereby counteracting the fungal-mediated translocation of carbon in soils. (c) 2007 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.soilbio.2007.05.028"],["dc.identifier.isi","000249538500017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50275"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0038-0717"],["dc.title","Endogeic earthworms alter carbon translocation by fungi at the soil-litter interface"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS