Light environment alters ozone uptake per net photosynthetic rate in black cherry trees

T. S. Fredericksen, Thomas E Kolb, J. M. Skelly, K. C. Steiner, B. J. Joyce, J. E. Savage

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Foliar ozone uptake rates of different-sized black cherry (Prunus serotina Ehrh.) trees were compared within a deciduous forest and adjacent openings in north-central Pennsylvania during one growing season. Study trees included open-grown seedlings and saplings, forest understory seedlings and saplings, and sunlit and shaded portions of mature canopy tree crowns. Instantaneous ozone uptake rates were highest in high-light environments primarily because of higher stomatal conductances. Low ozone uptake rates of seedlings and saplings in the forest understory could be attributed partially to lower average ambient ozone concentrations compared to the canopy and open environments. Among the tree size and light combinations tested, ozone uptake rates were highest in open-grown seedlings and lowest in forest-grown seedlings. Despite lower ozone uptake rates of foliage in shaded environments, ozone uptake per net photosynthesis of foliage in shaded environments was significantly higher than that of foliage in sunlit environments because of weaker coupling between net photosynthesis and stomatal conductance in shaded environments. The potential for greater ozone injury in shaded environments as a result of greater ozone uptake per net photosynthesis is consistent with previous reports of greater ozone injury in shaded foliage than in sunlit foliage.

Original languageEnglish (US)
Pages (from-to)485-490
Number of pages6
JournalTree Physiology
Volume16
Issue number5
StatePublished - May 1996

Fingerprint

Prunus serotina
Ozone
ozone
uptake mechanisms
Light
Seedlings
foliage
seedling
Photosynthesis
sapling
saplings
seedlings
photosynthesis
leaves
stomatal conductance
understory
rate
Prunus avium
canopy
Wounds and Injuries

Keywords

  • Air pollution
  • Irradiance
  • Prunus serotina
  • Shade
  • Stomatal conductance

ASJC Scopus subject areas

  • Forestry
  • Plant Science

Cite this

Fredericksen, T. S., Kolb, T. E., Skelly, J. M., Steiner, K. C., Joyce, B. J., & Savage, J. E. (1996). Light environment alters ozone uptake per net photosynthetic rate in black cherry trees. Tree Physiology, 16(5), 485-490.

Light environment alters ozone uptake per net photosynthetic rate in black cherry trees. / Fredericksen, T. S.; Kolb, Thomas E; Skelly, J. M.; Steiner, K. C.; Joyce, B. J.; Savage, J. E.

In: Tree Physiology, Vol. 16, No. 5, 05.1996, p. 485-490.

Research output: Contribution to journalArticle

Fredericksen, TS, Kolb, TE, Skelly, JM, Steiner, KC, Joyce, BJ & Savage, JE 1996, 'Light environment alters ozone uptake per net photosynthetic rate in black cherry trees', Tree Physiology, vol. 16, no. 5, pp. 485-490.
Fredericksen TS, Kolb TE, Skelly JM, Steiner KC, Joyce BJ, Savage JE. Light environment alters ozone uptake per net photosynthetic rate in black cherry trees. Tree Physiology. 1996 May;16(5):485-490.
Fredericksen, T. S. ; Kolb, Thomas E ; Skelly, J. M. ; Steiner, K. C. ; Joyce, B. J. ; Savage, J. E. / Light environment alters ozone uptake per net photosynthetic rate in black cherry trees. In: Tree Physiology. 1996 ; Vol. 16, No. 5. pp. 485-490.
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