Goldenrod ball gall effects on Solidago altissima: /sup 14/C translocation and growth. [Eurosta solidaginis]

Journal Article · Sun Dec 01 00:00:00 EST 1985 · Ecology; (United States)

OSTI ID:6137966

McCrea, K D; Abrahamson, W G; Weis, A E

Individual leaves of S. altissima were labeled with carbon-14 introduced as CO/sub 2/. The /sup 14/C was introduced into ramets that had ball galls caused by the fly Eurosta solidaginis and into ungalled control ramets; gall size (large vs. small) and point of introduction of the label (above vs. below the gall) were experimental factors. After 5 d the ramets were harvested and their component organs were assayed for /sup 14/C using liquid scintillation. In addition, a field cohort of 359 galled and ungalled ramets was followed during the period of gall growth to determine the effect of the gall on stem height growth. Gall size and labeling position had no effect on the percent of /sup 14/C translocated out of the labeled leaf but did affect the distribution of translocated /sup 14/C. Translocation to underground organs was reduced when the label was introduced above the gall, the reduction being related to gall size. Large galls reduced translocation to the apical bud when the label was introduced below the gall, but small galls did not. Translocation to underground organs was not affected by the gall when the label was introduced below the gall and translocation to the apical bud was not affected by the gall when the label was introduced above the gall; these results indicate that the goldenrod ball gall is a nonmobilizing gall. The presence of a gall did not significantly affect final stem height but did slow the growth of ramets during the period of most rapid gall growth.

• Research Organization: Bucknell Univ., Lewisburg, PA
• OSTI ID: 6137966
• Journal Information: Ecology; (United States), Vol. 66:6
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
CARBON 14 COMPOUNDS
TRANSLOCATION
PLANT DISEASES
BIOLOGICAL EFFECTS
PLANT GROWTH
INHIBITION
CARBON DIOXIDE
LABELLING
LEAVES
LIQUID SCINTILLATORS
PHOTOSYNTHESIS
SCINTILLATION COUNTING
TRACER TECHNIQUES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COUNTING TECHNIQUES
GROWTH
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORS
PHOTOCHEMICAL REACTIONS
SYNTHESIS
550501* - Metabolism- Tracer Techniques