Abstract
Abstract The lipids of loblolly pine phloem, particularly the neutral lipids, were fractionated and bioassayed for feeding stimulant activity with the pales weevil, Hylobius pales (Herbst). Activity was evidently reduced by the fractionation procedures. Significant feeding occurred in response to the fraction whose principal constituent was β-sitosterol. Also, evidence indicated that substances occurring with the sterols may play a part in inducing feeding.
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Claims 3
Claim · model-written summary
Fractionation reduced the feeding stimulant activity of loblolly pine phloem lipids.
- Taxon
- Hylobius pales
Hylobius palese0 - Treatment
- fractionation procedurese1
- Interactor
- loblolly pine
Pinus taedae0host - Outcome
- feeding stimulant activitye0
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“loblolly pine phloem, particularly the neutral lipids, were fractionated and bioassayed for feeding stimulant activity with the pales weevil, Hylobius pales (Herbst).”
e1“Activity was evidently reduced by the fractionation procedures.”
Claim · model-written summary
The fraction principally containing β-sitosterol elicited significant weevil feeding.
- Taxon
- Hylobius palesHylobius palese1
- Treatment
- fraction whose principal constituent was β-sitosterole2
- Interactor
- loblolly pinePinus taedae0host
- Outcome
- feedinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“loblolly pine phloem”
e1“the pales weevil, Hylobius pales (Herbst)”
e2“Significant feeding occurred in response to the fraction whose principal constituent was β-sitosterol.”
Claim · model-written summary
Substances occurring with sterols may contribute to inducing weevil feeding.
- Taxon
- Hylobius palesHylobius palese1
- Interactor
- loblolly pinePinus taedae0host
- Compound
- sterolse2
- Outcome
- feedinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“loblolly pine phloem”
e1“the pales weevil, Hylobius pales (Herbst)”
e2“substances occurring with the sterols may play a part in inducing feeding”