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 9
Claim · model-written summary
L. quieticolor formed ectomycorrhizae on both Pinus species.
- Interactor
- L. quieticolor
Lactarius 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 established an association only with P. elliottii.
- Taxon
- P. elliottii
.jpg?width=60)
Pinus 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.
.jpg?width=500)
Verbatim
e0“T. floridanum established an association only with P. elliottii, representing the first experimental record of this interaction”
Claim · model-written summary
L. quieticolor increased growth, root biomass and electron transport rate of P. elliottii regardless of dose.
- Taxon
- P. elliottiiPinus elliottiie0
- Treatment
- both fungie0
- Interactor
- Lactarius quieticolorLactarius quieticolore1symbiont
- Outcome
- growth, root biomass and electron transport ratee0
- Direction
- increasese0
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”
e1“Lactarius quieticolor”
Claim · model-written summary
T. floridanum increased growth, root biomass and electron transport rate of P. elliottii regardless of dose.
- Taxon
- P. elliottiiPinus elliottiie0
- Treatment
- both fungie0
- Interactor
- Tuber floridanumTuber floridanume1symbiont
- Outcome
- growth, root biomass and electron transport ratee0
- Direction
- increasese0
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”
e1“Tuber floridanum”
Claim · model-written summary
L. quieticolor increased root length and phosphorus content in P. elliottii.
- Taxon
- P. elliottiiPinus elliottiie2
- 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”
e2“In P. elliottii, both fungi”
Claim · model-written summary
L. quieticolor modulated initial chlorophyll fluorescence in P. elliottii.
- Taxon
- P. elliottiiPinus elliottiie2
- 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”
e2“In P. elliottii, both fungi”
Claim · model-written summary
At the highest inoculum concentrations, P. taeda increased shoot nitrogen content and electron transport rate.
- Taxon
- P. taeda
Pinus taedae0 - Treatment
- highest inoculum concentrationse0
- Interactor
- Lactarius quieticolorLactarius quieticolore1symbiont
- 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”
e1“Lactarius quieticolor”
Claim · model-written summary
At the highest inoculum concentrations, P. taeda root colonization increased.
- Taxon
- P. taedaPinus taedae0
- Treatment
- highest inoculum concentrationse0
- Interactor
- Lactarius quieticolorLactarius quieticolore1symbiont
- 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”
e1“Lactarius quieticolor”
Claim · model-written summary
Multivariate profiles separated control and inoculated plants and differed between fungal treatments.
- Interactor
- Lactarius quieticolorLactarius quieticolort0symbiont
- 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, indicating specific functional signatures”
e1“both Pinus species”
t0“Lactarius quieticolor”
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.