Root-associated fungal communities are influenced more by soils than by plant-host root traits in a Chinese tropical forest.
Xishuangbanna
fungal ITS2
mycorrhizas
root functional traits
root tissue chemistry
tropical trees
Journal
The New phytologist
ISSN: 1469-8137
Titre abrégé: New Phytol
Pays: England
ID NLM: 9882884
Informations de publication
Date de publication:
06 2023
06 2023
Historique:
received:
12
11
2022
accepted:
14
02
2023
medline:
28
4
2023
pubmed:
23
2
2023
entrez:
22
2
2023
Statut:
ppublish
Résumé
Forest fungal communities are shaped by the interactions between host tree root systems and the associated soil conditions. We investigated how the soil environment, root morphological traits, and root chemistry influence root-inhabiting fungal communities in three tropical forest sites of varying successional status in Xishuangbanna, China. For 150 trees of 66 species, we measured root morphology and tissue chemistry. Tree species identity was confirmed by sequencing rbcL, and root-associated fungal (RAF) communities were determined using high-throughput ITS2 sequencing. Using distance-based redundancy analysis and hierarchical variation partitioning, we quantified the relative importance of two soil variables (site average total phosphorus and available phosphorus), four root traits (dry matter content, tissue density, specific tip abundance, and forks), and three root tissue elemental concentrations (nitrogen, calcium, and manganese) on RAF community dissimilarity. The root and soil environment collectively explained 23% of RAF compositional variation. Soil phosphorus explained 76% of that variation. Twenty fungal taxa differentiated RAF communities among the three sites. Soil phosphorus most strongly affects RAF assemblages in this tropical forest. Variation in root calcium and manganese concentrations and root morphology among tree hosts, principally an architectural trade-off between dense, highly branched vs less-dense, herringbone-type root systems, are important secondary determinants.
Substances chimiques
Calcium
SY7Q814VUP
Manganese
42Z2K6ZL8P
Phosphorus
27YLU75U4W
Soil
0
Banques de données
RefSeq
['KR528589', 'KR534171', 'JQ991905', 'MK770274', 'JQ991904', 'OK562430', 'OK562579']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1849-1864Informations de copyright
© 2023 The Authors New Phytologist © 2023 New Phytologist Foundation.
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