Symbiotic control of canopy dominance in subtropical and tropical forests.
Trends Plant Sci
; 28(9): 995-1003, 2023 09.
Article
in En
| MEDLINE
| ID: mdl-37087357
ABSTRACT
Subtropical and tropical forests in Asia often comprise canopy dominant trees that form symbioses with ectomycorrhizal fungi, and species-rich understorey trees that form symbioses with arbuscular mycorrhizal fungi. We propose a virtuous phosphorus acquisition hypothesis to explain this distinct structure. The hypothesis is based on (i) seedlings being rapidly colonised by ectomycorrhizal fungi from established mycelial networks that generates positive feedback and resistance to pathogens, (ii) ectomycorrhizal fungi having evolved a suite of morphological, physiological, and molecular traits to enable them to capture phosphorus from a diversity of chemical forms, including organic forms, and (iii) allocation of photosynthate carbon from adult host plants to provide the energy needed to undertake these processes.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Forests
/
Mycorrhizae
Language:
En
Journal:
Trends Plant Sci
Journal subject:
BOTANICA
Year:
2023
Document type:
Article