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Plant-Soil-Microorganism Interactions: Heritable Relationship between Plant Genotype and Associated Soil Microorganisms

Schweitzer, Jennifer A. ; Bailey, Joseph K. ; Fischer, Dylan G. ; LeRoy, Carri J. ; Lonsdorf, Eric V. ; Whitham, Thomas G. ; Hart, Stephen C.

Ecology (Durham), 2008-03, Vol.89 (3), p.773-781 [Periódico revisado por pares]

Washington, DC: Ecological Society of America

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Plant-Soil-Microorganism Interactions: Heritable Relationship between Plant Genotype and Associated Soil Microorganisms
Autor: Schweitzer, Jennifer A. ; Bailey, Joseph K. ; Fischer, Dylan G. ; LeRoy, Carri J. ; Lonsdorf, Eric V. ; Whitham, Thomas G. ; Hart, Stephen C.
Assuntos: Acid soils ; Animal and plant ecology ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biomass ; Botany ; Communities ; community genetics ; community heritability ; Concepts & Synthesis: Emphasizing New Ideas to Stimulate Research in Ecology ; Crosses, Genetic ; Ecological genetics ; Ecosystem ; Fatty Acids - analysis ; Flowers & plants ; Forests ; Fundamental and applied biological sciences. Psychology ; General aspects ; Genetic Variation ; Genotype ; Genotype & phenotype ; Genotypes ; Host-Pathogen Interactions ; Hybridity ; Microbial biomass ; phospholipid fatty acid analyses ; Phospholipids - chemistry ; Plant genetics ; Plants ; Plants - genetics ; Plants - microbiology ; plant–soil microorganism interactions ; Populus ; Populus angustifolia ; Soil conditioners ; Soil ecology ; Soil Microbiology ; Soil microorganisms ; Soils ; Species Specificity
É parte de: Ecology (Durham), 2008-03, Vol.89 (3), p.773-781
Notas: Present address: Conservation and Science Department, Lincoln Park Zoo, Chicago, Illinois 60614 USA.
Jen.Schweitzer@utk.edu
Corresponding Editor: L. G. Galloway.
Present address: Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee 37996 USA.
Present address: Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee 37996 USA. E‐mail
Present address: Evergreen State College, Olympia, Washington 98505 USA.
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Descrição: Although soil microbial communities are known to play crucial roles in the cycling of nutrients in forest ecosystems and can vary by plant species, how microorganisms respond to the subtle gradients of plant genetic variation is just beginning to be appreciated. Using a model Populus system in a common garden with replicated clones of known genotypes, we evaluated microbial biomass and community composition as quantitative traits. Two main patterns emerged. (1) Plant genotype influenced microbial biomass nitrogen in soils under replicated genotypes of Populus angustifolia, F₁, and backcross hybrids, but not P. fremontii. Genotype explained up to 78% of the variation in microbial biomass as indicated by broad-sense heritability estimates (i.e., clonal repeatability). A second estimate of microbial biomass (total phospholipid fatty acid) was more conservative and showed significant genotype effects in P. angustifolia and backcross hybrids. (2) Plant genotype significantly influenced microbial community composition, explaining up to 70% of the variation in community composition within P. angustifolia genotypes alone. These findings suggest that variation in above- and belowground traits of individual plant genotypes can alter soil microbial dynamics, and suggests that further investigations of the evolutionary implications of genetic feedbacks are warranted.
Editor: Washington, DC: Ecological Society of America
Idioma: Inglês

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Plant-Soil-Microorganism Interactions: Heritable Relationship between Plant Genotype and Associated Soil Microorganisms

Schweitzer, Jennifer A. ; Bailey, Joseph K. ; Fischer, Dylan G. ; LeRoy, Carri J. ; Lonsdorf, Eric V. ; Whitham, Thomas G. ; Hart, Stephen C.

Washington, DC: Ecological Society of America

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