Abstract
The complete distribution of total soluble proteins was investigated in 40-year-old oak and beech trees, felled at two dates (October 1999 and June 2000), to estimate seasonal variations in protein content at tree level. The concentration of total soluble proteins was nearly twice as high in oak compared to beech (755 mg.g-1 Dry Mass vs. 4.2 mg.g-1 Dry Mass, respectively) and 10 times lower than total non structural carbohydrates. Scaling from samples to total tree biomass, the contribution of C stored as total soluble proteins accounted for 500 gC in oak trees and only for 250 gC in beech trees. The stem was the major storage compartment in both species. Soluble proteins made up most of nitrogen at the stem and roots of oaks, while in its branches and in all beech organs, several N compounds predominated. These concentrations varied before bud break and stem growth in oak and beech. The seasonal progression of total soluble proteins in twigs of both species showed opposite patterns, especially during Spring, probably due to internal redistribution of proteins from upper stem and large branches. The dates of minimum and maximum concentrations were different for total soluble proteins and total non structural carbohydrates.
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Claims 9
Claim · model-written summary
Soluble protein concentration was nearly twice as high in oak as beech.
- Outcome
- concentration of total soluble proteinse0
- Direction
- nearly twice as highe0
- Value
- 755 mg.g-1 Dry Masse0
- Qualifier
- 4.2 mg.g-1 Dry Masse0
- Comparator
- beeche0
QuercusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of total soluble proteins was nearly twice as high in oak compared to beech (755 mg.g-1 Dry Mass vs. 4.2 mg.g-1 Dry Mass, respectively)”
Claim · model-written summary
Soluble protein concentration was ten times below nonstructural carbohydrates.
- Taxon
- Quercus petraea (Matts.) Liebl.
Quercus petraeat0 - Outcome
- total soluble proteinst0
- Direction
- 10 times lowere0
- Comparator
- total non structural carbohydratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“10 times lower than total non structural carbohydrates”
t0“TOTAL SOLUBLE PROTEINS IN ADULT TREES OF Quercus petraea (Matts.) Liebl.”
Claim · model-written summary
Protein stored carbon was 500 gC in oak.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contribution of C stored as total soluble proteins accounted for 500 gC in oak trees”
Claim · model-written summary
Protein stored carbon was 250 gC in beech.
Not reportedDirection
Verbatim
e0“the contribution of C stored as total soluble proteins accounted for 500 gC in oak trees and only for 250 gC in beech trees”
t0“TOTAL SOLUBLE PROTEINS IN ADULT TREES OF Quercus petraea (Matts.) Liebl. AND Fagus sylvatica L.”
Claim · model-written summary
Stem was the main protein storage compartment in both species.
Not reportedDirection
Verbatim
e0“The stem was the major storage compartment in both species”
t0“oak and beech trees”
Claim · model-written summary
Soluble proteins accounted for most nitrogen in oak stems and roots.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soluble proteins made up most of nitrogen at the stem and roots of oaks”
Claim · model-written summary
Other nitrogen compounds predominated in oak branches and all beech organs.
Not reportedDirection
Verbatim
e0“in its branches and in all beech organs, several N compounds predominated”
Claim · model-written summary
Twig protein seasonality showed opposite spring patterns in the two species.
- Taxon
- Quercus petraea (Matts.) Liebl. AND Fagus sylvatica L.Quercus petraeat0
- Outcome
- seasonal progression of total soluble proteins in twigse0
- Qualifier
- especially during Springe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seasonal progression of total soluble proteins in twigs of both species showed opposite patterns, especially during Spring”
t0“Quercus petraea (Matts.) Liebl. AND Fagus sylvatica L.”
Claim · model-written summary
Protein and carbohydrate concentration extrema occurred on different dates.
- Taxon
- Quercus petraea (Matts.) Liebl. AND Fagus sylvatica L.Quercus petraeat0
- Outcome
- dates of minimum and maximum concentrationse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dates of minimum and maximum concentrations were different for total soluble proteins and total non structural carbohydrates”
t0“Quercus petraea (Matts.) Liebl. AND Fagus sylvatica L.”