Abstract
Argon gas was incorporated into the sap flowing through xylem of cut branches, or added to the air in a sealed cuvette surrounding a needle-free portion of the branch to investigate lateral movement of gases in Pinus strobus. Microdialysis was used to sample air in the xylem and evacuated vials were used to collect samples of air from cuvettes attached to branches. Argon concentrations of samples of air were measured by GC-MS. When argon was added through the sap, concentrations of argon in the xylem and in air of chambers enclosing needle stumps was greater than that of controls, but argon concentrations of air in cuvettes enclosing a needle-free portion of the branch were not greater than controls. When argon was added to cuvettes enclosing a needle-free portion of the branch, the argon did not enter the xylem and it was not emitted by needle stumps.
Similar content being viewed by others
References
Carrodus BB, Triffett ACK (1975) Analysis of respiratory gases in woody stems by mass spectrometry. New Phytol 74: 243–246
Eklund L (1990) Endogenous levels of oxygen, carbon dioxide and ethylene in stems of Norway spruce trees throughout a growth period. Trees 4: 150–154
Eklund L (1991) Hormone levels in the cambial zone of intact Picea abies during the onset of cambial activity. Physiol Plant 82: 385–388
Eklund L, Collin A-K (1991) Microdialysis, a new tool for sampling and manipulating internal ethylene concentration in apples. J Plant Physiol 137: 155–157
Eklund L, Cienciala E, Hällgren J-E (1992) No relation between drought stress and ethylene production in Norway spruce (Picea abies). Physiol Plant 82: 385–388
Eklund L (1993) Seasonal variations of O2, CO2 and ethylene in oak and maple stems. Can J For Res 23: 2608–2610
Hook DD, Brown CL (1972) Permeability of the cambium to air in trees adapted to wet habitats. Bot Gaz (Chicago) 133: 304–310
Hook DD, Brown CL, Wetmore RH, (1972) Aeration in trees. Bot Gaz (Chicago) 133: 443–454
Sprugel DG, Ryan JR, Brooks JR, Vogt TT, Martin TA (1994) Respiration from the organ level to the stand. In: Smith WK, Hinckley TM (eds) Resource physiology of conifers: acquisition, allocation and utilization. Academic Press, San Diego
Sundberg B, Little CHA (1990) Tracheid production in response to changes in the internal level of indole-3-acetic acid in 1-year-old shoots of Scots pine. Plant Physiol 94: 1721–1727
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Eklund, L., Lavigne, M.B. Restricted lateral gas movement in Pinus strobus branches. Trees 10, 83–85 (1995). https://doi.org/10.1007/BF00192187
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00192187