Abstract
Nectar produced by pistillate flowers of the dwarf mistletoe Arceuthobium abietinum Engelm. was analyzed by thin-layer and gas–liquid chromatography. The inconspicuous (0.5–1.5 mm) flowers produce relatively large (0.24 μliter) droplets of highly concentrated nectar (58–92% total solids, expressed as sugars). The major components were glucose (48%), fructose (39%), and sucrose (11%). Traces of other sugars were also present. It is suggested that nectar of this high sugar content is probably a strong insect pollinator attractant, and this, in turn, may be a major factor in the successful spread of the parasitic dwarf mistletoes.
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Claims 7
Claim · model-written summary
Flowers produced nectar droplets of 0.24 μliter.
- Taxon
- Arceuthobium abietinum Engelm.
Arceuthobium abietinume1 - Organ / stage
- flowerse0
- Outcome
- dropletse0
- Value
- 0.24 μlitere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flowers produce relatively large (0.24 μliter) droplets of highly concentrated nectar (58–92% total solids, expressed as sugars)”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
Nectar contained 58–92% total solids.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Outcome
- total solidse0
- Value
- 58–92%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nectar (58–92% total solids, expressed as sugars)”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
Glucose made up 48% of nectar sugars.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Outcome
- glucosee0
- Value
- 48%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glucose (48%)”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
Fructose made up 39% of nectar sugars.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Outcome
- fructosee0
- Value
- 39%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fructose (39%)”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
Sucrose made up 11% of nectar sugars.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Outcome
- sucrosee0
- Value
- 11%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sucrose (11%)”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
Other sugars occurred in traces.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Outcome
- Traces of other sugarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Traces of other sugars were also present”
e1“Arceuthobium abietinum Engelm.”
Claim · model-written summary
The authors suggested concentrated nectar probably attracts insect pollinators and may help mistletoe spread.
- Taxon
- Arceuthobium abietinum Engelm.Arceuthobium abietinume1
- Interactor
- insect pollinatore0pollinator
- Outcome
- successful spreade0
- Qualifier
- nectar of this high sugar contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nectar of this high sugar content is probably a strong insect pollinator attractant, and this, in turn, may be a major factor in the successful spread of the parasitic dwarf mistletoes”
e1“Arceuthobium abietinum Engelm.”