Impact of soil pedogenesis on the diversity and composition of fungal communities across the California soil chronosequence of Mendocino

Autor: Johan H. J. Leveau, Pierre-Emmanuel Courty, Daphnée Brulé, Yannick Colin, Stéphane Uroz, Marc Buée, Jan J. Tech
Přispěvatelé: AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA), Université Bourgogne Franche-Comté [COMUE] (UBFC), Interactions Arbres-Microorganismes (IAM), Université de Lorraine (UL)-Institut National de la Recherche Agronomique (INRA), Dept Plant Pathol, Tarbiat Modares University [Tehran], Unité de recherche Biogéochimie des Ecosystèmes Forestiers (BEF), France-Berkeley Fund grant, ANR JCJC SVSE7 'BACTOWEATHER', Labex ARBRE 'INABACT' projects, ANR, ANDRA, Lorraine Region, French Agency through the Laboratory of Excellence Arbre ANR-11-LABX-0002-01, Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement ( AgroSup Dijon ), Centre National de la Recherche Scientifique ( CNRS ), Institut National de la Recherche Agronomique ( INRA ), Université de Bourgogne Franche-Comté (COMUE) ( UBFC ), Interactions Arbres-Microorganismes ( IAM ), Institut National de la Recherche Agronomique ( INRA ) -Université de Lorraine ( UL ), Tarbiat Modares University, Unité de recherche Biogéochimie des Ecosystèmes Forestiers ( BEF )
Rok vydání: 2017
Předmět:
0106 biological sciences
0301 basic medicine
Soil nutrients
[SDV]Life Sciences [q-bio]
chronoséquence
Plant Science
microbial ecology
01 natural sciences
California
Soil
Mycorrhizae
CENOCOCCUM-GEOPHILUM
DNA
Fungal
Soil Microbiology
communauté fongique
Ecology
pH
Microbiota
EDAPHIC GRADIENT
TERM ECOSYSTEM DEVELOPMENT
MIXED-CONIFER
General Medicine
pedogenesis
Soil horizon
BACTERIAL COMMUNITIES
pédogénèse
Soil test
Terrace (agriculture)
Chronosequence
FINE-SCALE DISTRIBUTION
Biology
03 medical and health sciences
Genetics
BOREAL FORESTS
californie
Ecosystem
Ectomycorrhizal fungi
Molecular Biology
Ecology
Evolution
Behavior and Systematics
Soil horizons
ITS-based pyrosequencing
écologie microbienne
[ SDV ] Life Sciences [q-bio]
PYGMY FOREST REGION
Fungi
Sequence Analysis
DNA
15. Life on land
états-unis
Soil chronosequence
030104 developmental biology
Pedogenesis
terrace
terrasse
Soil water
Species richness
010606 plant biology & botany
NORTHERN CALIFORNIA
usa
Zdroj: Mycorrhiza
Mycorrhiza, Springer Verlag, 2018, 28 (4), pp.343-356. ⟨10.1007/s00572-018-0829-9⟩
Mycorrhiza, Springer Verlag, 2018, 28 (4), pp.343-356. 〈10.1007/s00572-018-0829-9〉
ISSN: 1432-1890
0940-6360
DOI: 10.1007/s00572-018-0829-9⟩
Popis: Understanding how soil pedogenesis affects microbial communities and their in situ activities according to ecosystem functioning is a central issue in soil microbial ecology, as soils represent essential nutrient reservoirs and habitats for the biosphere. To address this question, soil chronosequences developed from a single, shared mineralogical parent material and having the same climate conditions are particularly useful, as they isolate the factor of time from other factors controlling the character of soils. In our study, we considered a natural succession of uplifted marine terraces in Mendocino, CA, ranging from highly fertile in the younger terrace (about 100,000 years old) to infertile in the older terraces (about 300,000 years old). Using ITS amplicon pyrosequencing, we analysed and compared the diversity and composition of the soil fungal communities across the first terraces (T1 to T3), with a specific focus in the forested terraces (T2 and T3) on soil samples collected below trees of the same species (Pinus muricata) and of the same age. While diversity and richness indices were highest in the grassland (youngest) terrace (T1), they were higher in the older forested terrace (T3) compared to the younger forested terrace (T2). Interestingly, the most abundant ectomycorrhizal (ECM) taxa that we found within these fungal communities showed high homology with ITS Sanger sequences obtained previously directly from ECM root tips from trees in the same study site, revealing a relative conservation of ECM diversity over time. Altogether, our results provide new information about the diversity and composition of the fungal communities as well as on the dominant ECM species in the soil chronosequence of Mendocino in relation to soil age and ecosystem development.
Databáze: OpenAIRE
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