Abstract
This study evaluated ectomycorrhizal compatibility, functional effects, and the inoculum-dose response of Lactarius quieticolor and Tuber floridanum in Pinus elliottii and Pinus taeda, aiming to understand the role of fungus-host specificity in the expression of growth and physiological responses. Basidiomes of Lactarius spp. used as the inoculum source were identified through morphological and molecular analyses, confirming the identity as L. quieticolor. The symbiont L. quieticolor formed ectomycorrhizae on both Pinus species, whereas T. floridanum established an association only with P. elliottii, representing the first experimental record of this interaction. In P. elliottii, both fungi elicited integrated responses regardless of dose, with increases in growth, root biomass and electron transport rate, while L. quieticolor also increased root length, phosphorus content and modulated initial chlorophyll fluorescence. In P. taeda, effects were more limited and dose-dependent: increases in shoot nitrogen content, electron transport rate and root colonization were observed only at the highest inoculum concentrations. Multivariate analyses revealed a clear separation between control and inoculated plants even as the fungal treatments, indicating specific functional signatures. Altogether, the results demonstrate that ectomycorrhizal compatibility is not universal among congeneric Pinus species and highlight the potential of L. quieticolor and T. floridanum as functional ectomycorrhizal symbionts, with implications for seedling production and the ecology of forest systems.
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Claims 10
Claim · model-written summary
Lactarius basidiomes were identified as L. quieticolor.
- Taxon
- Pinus elliottii
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Pinus elliottiie1 - Interactor
- L. quieticolor
Lactarius quieticolore0symbiont - Outcome
- identity as L. quieticolore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Basidiomes of Lactarius spp. used as the inoculum source were identified through morphological and molecular analyses, confirming the identity as L. quieticolor”
t0“Pinus eliotti”
e1“Pinus elliottii and Pinus taeda”
Claim · model-written summary
L. quieticolor formed ectomycorrhizae on both Pinus species.
- Interactor
- L. quieticolorLactarius quieticolore0symbiont
- Outcome
- formed ectomycorrhizaee0
PinusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The symbiont L. quieticolor formed ectomycorrhizae on both Pinus species”
Claim · model-written summary
T. floridanum associated only with P. elliottii.
- Taxon
- P. elliottiiPinus elliottiie0
- Interactor
- T. floridanumTuber floridanume0symbiont
- Outcome
- established an association only with P. elliottiie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T. floridanum established an association only with P. elliottii, representing the first experimental record of this interaction”
Claim · model-written summary
Both fungi increased growth and root biomass in P. elliottii regardless of dose.
- Taxon
- P. elliottiiPinus elliottiie0
- Treatment
- both fungie0
- Outcome
- growth, root biomasse0
- Direction
- increasese0
- Qualifier
- regardless of dosee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In P. elliottii, both fungi elicited integrated responses regardless of dose, with increases in growth, root biomass and electron transport rate”
Claim · model-written summary
Both fungi increased electron transport rate in P. elliottii regardless of dose.
- Taxon
- P. elliottiiPinus elliottiie0
- Treatment
- both fungie0
- Outcome
- electron transport ratee0
- Direction
- increasese0
- Qualifier
- regardless of dosee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In P. elliottii, both fungi elicited integrated responses regardless of dose, with increases in growth, root biomass and electron transport rate”
Claim · model-written summary
L. quieticolor increased root length and phosphorus content.
- Taxon
- P. elliottiiPinus elliottiie1
- Treatment
- L. quieticolore0
- Interactor
- L. quieticolorLactarius quieticolore0symbiont
- Outcome
- root length, phosphorus contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L. quieticolor also increased root length, phosphorus content and modulated initial chlorophyll fluorescence”
t0“Pinus eliotti”
e1“In P. elliottii, both fungi elicited integrated responses regardless of dose”
Claim · model-written summary
L. quieticolor modulated initial chlorophyll fluorescence.
- Taxon
- P. elliottiiPinus elliottiie1
- Treatment
- L. quieticolore0
- Interactor
- L. quieticolorLactarius quieticolore0symbiont
- Outcome
- initial chlorophyll fluorescencee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“L. quieticolor also increased root length, phosphorus content and modulated initial chlorophyll fluorescence”
t0“Pinus eliotti”
e1“In P. elliottii, both fungi elicited integrated responses regardless of dose”
Claim · model-written summary
At the highest inoculum concentrations, shoot nitrogen and electron transport increased in P. taeda.
- Taxon
- P. taeda
Pinus taedae0 - Treatment
- highest inoculum concentrationse0
- Outcome
- shoot nitrogen content, electron transport ratee0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In P. taeda, effects were more limited and dose-dependent: increases in shoot nitrogen content, electron transport rate and root colonization were observed only at the highest inoculum concentrations”
Claim · model-written summary
At the highest inoculum concentrations, root colonization increased in P. taeda.
- Taxon
- P. taedaPinus taedae0
- Treatment
- highest inoculum concentrationse0
- Outcome
- root colonizatione0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In P. taeda, effects were more limited and dose-dependent: increases in shoot nitrogen content, electron transport rate and root colonization were observed only at the highest inoculum concentrations”
Claim · model-written summary
Multivariate analysis separated control from inoculated plants.
- Taxon
- Pinus elliottiiPinus elliottiie1
- Outcome
- clear separation between control and inoculated plantse0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Multivariate analyses revealed a clear separation between control and inoculated plants even as the fungal treatments”
t0“Pinus eliotti”
e1“Pinus elliottii and Pinus taeda”
The same questions in other papers
Lactarius quieticolor · growth · Pinus elliottii (slash pine)Results agree
1 paper in the same direction as this paper
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.