PHOTOSYNTHESIS OF HEDERA-CANARIENSIS VAR. AZORICA VARIEGATED LEAVES AS AFFECTED BY OZONE

Authors
SOLDATINI GF NALI C GUIDI L LORENZINI G
Citation
Gf. Soldatini et al., PHOTOSYNTHESIS OF HEDERA-CANARIENSIS VAR. AZORICA VARIEGATED LEAVES AS AFFECTED BY OZONE, Photosynthetica, 35(2), 1998, pp. 247-253
Citations number
23
Categorie Soggetti
Plant Sciences
Journal title
Photosynthetica → ACNP
ISSN journal
03003604
Volume
35
Issue
2
Year of publication
1998
Pages
247 - 253
Database
ISI
SICI code
0300-3604(1998)35:2<247:POHVAV>2.0.ZU;2-#
Abstract
A differential response to long-term ozone exposures (50 and 100 mm(3) m(-3)) was observed in the green and white areas of variegated leaves of Hedera canariensis var. azorica L. In green tissue the photosynthe tic activity was depressed via a stomatal mechanism, and in white regi ons no effect was observed. Chlorophyll fluorescence parameters remain ed unchanged in green portions, whereas in the white ones F-m and F-v/ F-m significantly diminished following ozone fumigation.