Accumulation in nutrient acquisition strategies of arbuscular mycorrhizal fungi and plant roots in poor and heterogeneous soils of karst shrub ecosystems.

ABSTRACT:

Background

Arbuscular mycorrhizal (AM) fungi and roots play important roles in plant nutrient acquisition, especially in nutrient poor and heterogeneous soils. However, whether an accumulation strategy of AM fungi and root exists in such soils of karst shrubland ecosystems remains unclear. Root traits related to nutrient acquisition (root biomass, AM colonisation, root acid phosphatase activity and N₂ fixation) were measured in two N₂-fixing plants (i.e. Albizia odoratissima (Linn. f.) Benth. and Cajanus cajan (Linn.) Millsp.) that were grown in heterogeneous or homogeneous nutrient (ammonium) soil with and without AM fungi inoculation.

Results

Both of these plants had higher AM colonisation, root biomass and relative growth rate (RGR), but lower N

SUBMITTER: Liang Y 

PROVIDER: S-EPMC8996662 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature