Record ID No. |
1907 |
Author(s) |
Wagg C., Pautler M., Massicotte H.B., Peterson R.L , 2008 |
Affiliation |
University of Guelph, Department of Molecular & Cellular Biology, Guelph, ON N1G 2W1, CANADA |
Title |
The co-occurrence of ectomycorrhizal, arbuscular mycorrhizal, and dark septate fungi in seedlings of four members of the Pinaceae |
Source. Vol.(no):Page |
Mycorrhiza.18(2):103-110p. |
Categories |
Ectomycorrhiza |
Subjects |
Biochemistry |
Sub-subjects |
Miscellaneous |
Organism |
n.a. |
Country |
CANADA, America |
Abstracts |
Although roots of species in the Pinaceae are usually colonized by
ectomycorrhizal (EM) fungi, there are increasing reports of the presence of arbuscular
mycorrhizal (AM) and dark septate endophytic (DSE) fungi in these species. The objective of this
study was to determine the colonization patterns in seedlings of three Pinus (pine) species
(Pinus banksiana, Pinus strobus, Pinus contorta) and Picea glauca x Picea engelmannii (hybrid
spruce) grown in soil collected from a disturbed forest site. Seedlings of all three pine species
and hybrid spruce became colonized by EM, AM, and DSE fungi. The dominant EM morphotype belonged
to the E-strain category; limited colonization by a Tuber sp. Was found on roots of Pinus strobus
and an unknown morphotype (cf. Suillus-Rhizopogon group) with thick, cottony white mycelium was
present on short roots of all species. The three fungal categories tended to occupy different
niches in a single root system. No correlation was found between the percent root colonized by EM
and percent colonization by either AM or DSE, although there was a positive correlation between
percent root length colonized by AM and DSE. Hyphae and vesicles were the only AM intracellular
structures found in roots of all species; arbuscules were not observed in any roots. |