Abstract
The facultative hemiparasitic angiosperm Rhinanthus minor was grown on 11 different host species, and in the absence of a host. The height of R. minor parasitising the legume Trifolium pratense exceeded that of unattached plants by more than an order of magnitude, with performance on grasses and non‐legume dicotlyedonous hosts between these two extremes. Light saturated rates of photosynthesis in R. minor on different hosts ranged from 1. 5 to 22. 5 μmol g −1 dry weight min −1 , and were positively correlated with growth. Foliar nitrogen concentrations in the parasite exceeded those of the hosts. The former were positively related to light saturated rates of photosynthesis, and inversely related to photosynthetic nitrogen use efficiency. There was no relationship between leaf nitrogen concentration and water use efficiency in R. minor. The data are discussed in relation to studies of nitrogen and water use in mistletoes.
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Claims 8
Claim · model-written summary
R. minor on Trifolium pratense grew over tenfold taller than unattached plants.
- Taxon
- R. minor
.jpg?width=60)
Rhinanthus minore0 - Interactor
- Trifolium pratense
Trifolium pratensee0host - Outcome
- heighte0
- Direction
- exceedede0
- Value
- more than an order of magnitudee0
- Comparator
- unattached plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The height of R. minor parasitising the legume Trifolium pratense exceeded that of unattached plants by more than an order of magnitude”
Claim · model-written summary
Performance on grasses and non-legume dicot hosts was intermediate.
- Taxon
- Rhinanthus minorRhinanthus minort0
- Outcome
- performancee0
- Direction
- between these two extremese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with performance on grasses and non‐legume dicotlyedonous hosts between these two extremes”
t0“Rhinanthus minor”
Claim · model-written summary
Light saturated photosynthesis varied across hosts from 1. 5 to 22. 5 μmol g −1 dry weight min −1.
- Taxon
- R. minorRhinanthus minore0
- Outcome
- Light saturated rates of photosynthesise0
- Value
- 1. 5 to 22. 5 μmol g −1 dry weight min −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light saturated rates of photosynthesis in R. minor on different hosts ranged from 1. 5 to 22. 5 μmol g −1 dry weight min −1”
Claim · model-written summary
Photosynthesis was positively correlated with growth.
- Taxon
- R. minorRhinanthus minore0
- Interactor
- hostse0host
- Outcome
- Light saturated rates of photosynthesise0
- Direction
- positively correlatede0
- Qualifier
- growthe0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Light saturated rates of photosynthesis in R. minor on different hosts ranged from 1. 5 to 22. 5 μmol g −1 dry weight min −1 , and were positively correlated with growth”
Claim · model-written summary
Parasite foliar nitrogen exceeded host foliar nitrogen.
- Taxon
- Rhinanthus minorRhinanthus minort0
- Interactor
- hostse0host
- Outcome
- Foliar nitrogen concentrationse0
- Direction
- exceedede0
- Comparator
- hostse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar nitrogen concentrations in the parasite exceeded those of the hosts”
t0“Rhinanthus minor”
Claim · model-written summary
Parasite foliar nitrogen was positively related to photosynthesis.
- Taxon
- Rhinanthus minorRhinanthus minort0
- Outcome
- light saturated rates of photosynthesise0
- Direction
- positively relatede0
Not reportedOrgan / stageQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The former were positively related to light saturated rates of photosynthesis”
t0“Rhinanthus minor”
Claim · model-written summary
Parasite foliar nitrogen was inversely related to photosynthetic nitrogen use efficiency.
- Taxon
- Rhinanthus minorRhinanthus minort0
- Outcome
- photosynthetic nitrogen use efficiencye0
- Direction
- inversely relatede0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“and inversely related to photosynthetic nitrogen use efficiency”
t0“Rhinanthus minor”
Claim · model-written summary
Leaf nitrogen and water use efficiency were unrelated.
- Taxon
- R. minorRhinanthus minore0
- Organ / stage
- leafe0
- Outcome
- water use efficiencye0
- Direction
- no relationshipe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no relationship between leaf nitrogen concentration and water use efficiency in R. minor”