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Title: Water relations and photosynthesis in pine trees exposed to industrial pollution

Journal Article · · Russian Journal of Plant Physiology
OSTI ID:79248
; ; ;  [1]
  1. Karelian Scientific Center, Karelia (Russian Federation)

The temporal and spatial variability of the shoot water potential, a sensitive characteristic of plant water relations, was investigated in common pine growing under conditions of industrial pollution. The alterations in the xylem structure that made the plants more susceptible to water deficit were revealed. It is concluded that water stress, enhanced by pollutants, negatively affects the diurnal pattern and light curves of CO{sub 2}-gas exchange; this additional factor, along the damage to assimilatory apparatus and stomata, accounts for photosynthesis decline in the pollutant-exposed pine trees. 19 refs., 2 figs.

OSTI ID:
79248
Journal Information:
Russian Journal of Plant Physiology, Vol. 42, Issue 3; Other Information: PBD: May-Jun 1995; TN: Translated from Fiziologiya Rastenii; 42: No. 3, 451-456(1995)
Country of Publication:
United States
Language:
English