scholarly journals Effects of plant community history, soil legacy and plant diversity on soil microbial communities

2021 ◽  
Author(s):  
Marc W. Schmid ◽  
Sofia J. van Moorsel ◽  
Terhi Hahl ◽  
Enrica De Luca ◽  
Gerlinde B. Deyn ◽  
...  
2020 ◽  
Author(s):  
Marc W. Schmid ◽  
Sofia J. van Moorsel ◽  
Terhi Hahl ◽  
Enrica De Luca ◽  
Gerlinde B. Deyn ◽  
...  

AbstractPlant and soil microbial diversity are linked through a range of interactions, including the exchange of carbon and nutrients but also herbivory and pathogenic effects. Over time, associations between plant communities and their soil microbiota may strengthen and become more specific, resulting in stronger associations between plant and soil microbial diversity. We tested this hypothesis in a 4-year long field experiment in which we factorially combined plant community history and soil legacy with plant diversity (1, 2, 4, 8, 60 species). Plant community history and soil legacy refer to the presence (“old”) or absence (“new”) of a common history of plants and soils in 52 different plant species compositions during 8 years in a long-term biodiversity experiment in Jena, Germany. After 4 years of growth, we took soil samples in the new field experiment and determined soil bacterial and fungal composition in terms of operational taxonomic units (OTUs) using 16S rRNA gene and ITS DNA sequencing. Plant community history did not affect overall soil community composition but differentially affected bacterial richness and abundances of specific bacteria taxa in association with particular plant species compositions. Soil legacy markedly increased soil bacterial richness and evenness and decreased fungal evenness. Soil fungal richness increased with plant species richness, regardless of plant community history or soil legacy, with the strongest difference between plant monocultures and mixtures. Particular plant species compositions and functional groups were associated with particular bacterial and fungal community compositions. Grasses increased and legumes decreased fungal richness and evenness. Our findings indicate that as experimental ecosystems varying in plant diversity develop over 8 years, plant species associate with specific soil microbial taxa. This can have long-lasting effects on belowground community composition in re-assembled plant communities, as reflected in strong soil legacy signals still visible after 4 years of growing new plant communities. Effects of plant community history on soil communities are subtle and may take longer to fully develop.


Ecology ◽  
2003 ◽  
Vol 84 (8) ◽  
pp. 2042-2050 ◽  
Author(s):  
Donald R. Zak ◽  
William E. Holmes ◽  
David C. White ◽  
Aaron D. Peacock ◽  
David Tilman

2005 ◽  
Vol 7 (1) ◽  
pp. 27-49 ◽  
Author(s):  
Janine Bartelt-Ryser ◽  
Jasmin Joshi ◽  
Bernhard Schmid ◽  
Helmut Brandl ◽  
Teri Balser

2021 ◽  
Author(s):  
Seraina Lisa Cappelli ◽  
Luiz Domeignoz Horta ◽  
Viviana Loaiza ◽  
Anna-Liisa Laine

While the positive relationship between plant biodiversity and ecosystem functioning (BEF) is relatively well-established, far less in known about the extent to which this relationship is mediated via below-ground microbial responses to plant diversity. Limited evidence suggests that the diversity of soil microbial communities is sensitive to plant community structure, and that diverse soil microbial communities promote functions desired of sustainable food production systems such as enhanced carbon sequestration and nutrient cycling. Here, we discuss available evidence on how plant diversity could be utilized to purposefully guide soil biodiversity in agricultural systems that are typically depleted of biodiversity, and are notoriously sensitive to both biotic and abiotic stressors. We outline the direct and soil microbe-mediated mechanisms expected to promote a positive BEF relationship both above- and below-ground. Finally, we identify management schemes based on ecological theory and vast empirical support that can be utilized to maximize ecosystem functioning in agroecosystems via biodiversity implementation schemes.


Author(s):  
Dongxia Chen ◽  
Nianxun Xi ◽  
Marc Cadotte ◽  
Hangyu Wu ◽  
Chengjin Chu

How historical and concurrent drought regulate plant diversity-productivity relationships through altering soil microbial communities remains a key knowledge gap. We addressed this gap with plant diversity-productivity relationship experiments under drought and ambient conditions over two phases (Phase I: soil conditioning, and Phase II: plant response). Our results reveal that plant diversity and drought interacted and caused divergent soil microbial communities in Phase I, leading to soil microbial legacies. These soil legacies interacted and caused more pronounced plant diversity-productivity relationships in Phase II, reflecting increased net biodiversity effects over time. Complementarity effects were most positive in plant communities with highest plant richness and in the Drought-Ambient (Phase I-II) treatment, and selection effects were most negative in these communities. Our results highlight the importance of soil microbial communities in driving positive plant diversity effects, and future rainfall changes can cause complicated patterns in the biodiversity-ecosystem functioning relationships through soil microbial legacy.


PLoS ONE ◽  
2014 ◽  
Vol 9 (5) ◽  
pp. e96182 ◽  
Author(s):  
Markus Lange ◽  
Maike Habekost ◽  
Nico Eisenhauer ◽  
Christiane Roscher ◽  
Holger Bessler ◽  
...  

2021 ◽  
Author(s):  
Sydney I Glassman ◽  
James WJ Randolph ◽  
Sameer S Saroa ◽  
Joia K Capocchi ◽  
Kendra E Walters ◽  
...  

1. Prescribed fire is often used as a management tool to decrease exotic plant cover and increase native plant cover in grasslands. These changes may also be mediated by fire impacts on soil microbial communities, which drive plant productivity and function. Yet, the ecological effects of prescribed burns compared to wildfires on either plant or soil microbial composition remain unclear. 2. Here, we investigated the impacts of a spring prescribed fire versus a fall wildfire on plant cover and community composition and bacterial and fungal richness, abundance, and composition in a California grassland. We used qPCR of 16S and 18S to assess impacts on bacterial and fungal abundance and Illumina MiSeq of 16S and ITS2 to assess impacts on bacterial and fungal richness and composition. 3. Wildfire had stronger impacts than prescribed fire on microbial communities and both fires had similar impacts on plants with both prescribed and wildfire reducing exotic plant cover but neither reducing exotic plant richness. Fungal richness declined after the wildfire but not prescribed fire, but bacterial richness was unaffected by either. Yet increasing char levels in both fire types resulted in reduced bacterial and fungal biomass, and both fire types slightly altered bacterial and fungal composition. 4. Exotic and native plant diversity differentially affected soil microbial diversity, with native plant diversity leading to increased arbuscular mycorrhizal fungal richness while exotic plant diversity better predicted bacterial richness. However, the remainder of the soil microbial communities were more related to aspects of soil chemistry including cation exchange capacity, organic matter, pH and phosphorous. 5. Synthesis and applications. Understanding the different ecological effects of prescribed fires and wildfires on plant and soil communities are key to enhancing a prevalent management action and to guide potential management opportunities post wildfires. Our coupled plant and soil community sampling allowed us to capture the sensitivity of the fungal community to fire and highlights the importance of potentially incorporating management actions such as soil or fungal amendments to promote this critical community that mediates native plant performance.


Sign in / Sign up

Export Citation Format

Share Document