Abstract
The ectomycorrhizal fungi associated with American chestnut (Castanea dentata) were characterized using DNA extracted from the root-tips of naturally occurring saplings from a forest in northeastern Tennessee. A total of 18 taxa were recorded, although one of these (Oidiodendron maius) was surprising because it has been reported previously to form what appear to be mycorrhizal associations only with members of the Ericaceae. One-third of the recorded taxa were representatives of the genera Russula or Lactarius (both members of the family Russulaceae), and three other genera (Cortinarius, Tomentella, and Tricholoma, each represented by two species). The data presented herein at least suggest that members of the Russulaceae are among the most common and widespread ectomycorrhizal fungi associated with naturally occurring individuals of American chestnut in the forests of eastern North America in which it was once dominant. However, it should be pointed out that our data are limited and thus are best considered as preliminary.
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Claims 5
Claim · model-written summary
Eighteen ectomycorrhizal fungal taxa were recorded from American chestnut roots.
- Taxon
- American chestnut
Castanea dentatae0 - Organ / stage
- root-tipse0
- Outcome
- ectomycorrhizal fungie0
- Value
- 18 taxae0
- Setting
- northeastern Tennesseee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ectomycorrhizal fungi associated with American chestnut (Castanea dentata) were characterized using DNA extracted from the root-tips of naturally occurring saplings from a forest in northeastern Tennessee. A total of 18 taxa were recorded”
Claim · model-written summary
Oidiodendron maius was recorded among the chestnut-associated fungi, despite prior reports of association only with Ericaceae.
- Taxon
- American ChestnutCastanea dentatat0
- Interactor
- Oidiodendron maiusOidiodendron maiuse0symbiont
- Outcome
- mycorrhizal associationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“one of these (Oidiodendron maius) was surprising because it has been reported previously to form what appear to be mycorrhizal associations only with members of the Ericaceae”
t0“American Chestnut”
Claim · model-written summary
One-third of recorded ectomycorrhizal taxa belonged to Russula or Lactarius.
- Taxon
- American ChestnutCastanea dentatat0
- Interactor
- Russula or Lactariuse0symbiont
- Outcome
- recorded taxae0
- Value
- One-thirde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One-third of the recorded taxa were representatives of the genera Russula or Lactarius”
t0“American Chestnut”
Claim · model-written summary
Cortinarius, Tomentella, and Tricholoma each had two species recorded.
- Taxon
- American ChestnutCastanea dentatat0
- Interactor
- Cortinarius, Tomentella, and Tricholoma
Cortinarius
Tricholoma
Tomentellae0symbiont - Outcome
- three other generae0
- Value
- two speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three other genera (Cortinarius, Tomentella, and Tricholoma, each represented by two species)”
t0“American Chestnut”
Claim · model-written summary
Russulaceae members appear among the most common and widespread ectomycorrhizal associates of American chestnut in eastern North America, although evidence is preliminary.
- Taxon
- American chestnutCastanea dentatae0
- Interactor
- RussulaceaeRussulaceaee0symbiont
- Outcome
- ectomycorrhizal fungie0
- Qualifier
- preliminarye1
- Setting
- eastern North Americae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“members of the Russulaceae are among the most common and widespread ectomycorrhizal fungi associated with naturally occurring individuals of American chestnut in the forests of eastern North America”
e1“our data are limited and thus are best considered as preliminary”