Role of trees and herbaceous vegetation beneath trees in maintaining arbuscular mycorrhizal communities in temperate alley cropping systems

Autor: Patricia Battie-Laclau, Anne-Laure Pablo, Christophe Jourdan, Maxime Duthoit, Adrien Taudière, Damien Dezette, Philippe Benezech, Isabelle Bertrand, Josiane Abadie, Jean-Paul Laclau, Philippe Hinsinger, Claude Plassard, Didier Arnal, Elisa Taschen
Přispěvatelé: Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud])
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences
Perennial plant
F08 - Systèmes et modes de culture
Plant Science
Agroforesterie
01 natural sciences
Système racinaire
Sorbus torminalis
media_common
2. Zero hunger
biology
Plant physiology
04 agricultural and veterinary sciences
Vegetation
Acer pseudoplatanus
Extra-radical hyphal production
Herbaceous vegetation beneath trees
media_common.quotation_subject
Soil Science
Mycorhization
Prunus avium
Juglans nigra
Competition (biology)
Crop
Culture intercalaire
Temperate climate
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Agroforestry
Sorbus domestica
Root density and distribution
Fraxinus excelsior
P34 - Biologie du sol
15. Life on land
Herbaceous plant
biology.organism_classification
K10 - Production forestière
Agronomy
040103 agronomy & agriculture
Metabarcoding
0401 agriculture
forestry
and fisheries
010606 plant biology & botany
Espacement
Zdroj: Plant and Soil
Plant and Soil, Springer Verlag, 2020, 453 (1-2), pp.153-171. ⟨10.1007/s11104-019-04181-z⟩
ISSN: 0032-079X
1573-5036
Popis: Background & Aims: Better understanding of belowground interactions in agroforestry systems is crucial for the success of plant co-existence. Beyond root competition, associated arbuscular mycorrhizal (AM) fungi can also be involved in plant to plant interactions. Thus far, the contribution of each agroforestry component (trees, herbaceous vegetation beneath trees -HVbT- and crops) in the establishment and maintenance of AM communities is poorly documented, particularly in temperate areas. This study investigates the spatio-temporal dynamics of both roots and AM fungi in two alley-cropping sites located in southwestern France. Methods: Over a one-year period, (i) root length density, production and distribution, (ii) AM activity (root mycorrhization rate and extra-radical hyphal production) and (iii) AM diversity (metabarcoding) were assessed at different distances from tree rows in two agroforestry systems. Results: The mycorrhization rate and hyphal production increased at the interface between tree rows and cultivated alleys, showing a positive effect of the presence of a perennial system (tree and HVbT) and of plant diversity. Compared to HVbT, tree roots colonized farther into superficial layers of the cultivated alleys. However, due to higher root densities and well-established AM fungi observed throughout all the year, HVbT appeared to be more relevant in maintaining an active source of AM inoculum for newly developing crop roots in winter. Conclusion: The spatial proximity of roots and common AM fungi provides new perspectives in deciphering the significance of arbuscular mycorrhizal communities in crop nutrition and yield in agroforestry systems.
Databáze: OpenAIRE
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