Record ID No. |
5675 |
Author(s) |
Winther J. and Aldrich K. , 2019 |
Affiliation |
Grand Valley State University, 1 Campus Drive, Allendale MI, 49101 USA. |
Title |
Molecular Diversity and Distribution of arbuscular mycorrhizal fungi colonizing peach (Prunus persica) and apple (Malus pumila) trees in a sustainable small market garden. |
Source. Vol.(no):Page |
Plant Pathology & Quarantine. 9(1): 30-42. |
Categories |
|
Subjects |
Ecology |
Sub-subjects |
Biodiversity Molecular taxonomy |
Host |
Prunus persica, Malus pumila |
Organism |
Paraglomus spp., Glomus spp., Rhizophagus spp., Sclerocystis spp. |
Country |
USA |
Abstracts |
We characterized the molecular
diversity and distribution of arbuscular mycorrhizal fungi
(AMF) in the roots of apple and peach trees found at Grand Valley State University’s Sustainable
Agriculture Project small market garden. Arbuscular mycorrhizal fungal root colonization observed
in cleared and stained roots ranged from 11–43%. The molecular identity of the fungal symbionts
was determined based on phylogenetic analyses of isolated small subunit ribosomal DNA sequences.
Twenty-seven arbuscular mycorrhizal fungal sequences in the phylum Glomeromycota were isolated
from roots of apple and peach trees with 96% of those sequences in family Glomeraceae including
the genera Rhizophagus and Sclerocystis, and 4% of the sequences share identity with fungi in the
family Paraglomeraceae. Four of the isolated arbuscular mycorrhizal sequences were shared between
different apple and peach trees. Peach tree roots had the highest arbuscular mycorrhizal richness of
trees sampled. Our analyses suggest that apple and peach trees in small gardens may form arbuscular
mycorrhizal associations with different fungi than apple and peach trees of larger scale agricultural
operations. Furthermore, the presence of shared AMF sequences between different fruit trees
suggests the presence of common mycorrhizal networks that may serve an important function in the
health and productivity of small market gardens. |