differential response to long-term ozone exposures (50 and 100 mm3 m-3) was observed in the green and white areas of variegated leaves of Hedera canariensis var. azorica L. In green tissue the photosynthetic activity was depressed via a stomatal mechanism, and in white regions no effect was observed. Chlorophyll fluorescence parameters remained unchanged in green portions, whereas in the white ones F(m) and F(v)/F(m) significantly diminished following ozone fumigation.
Photosynthesis of Hedera canariensis var. azorica variegated leaves as affected by ozone
NALI, CRISTINA;GUIDI, LUCIA;LORENZINI, GIACOMO
1998-01-01
Abstract
differential response to long-term ozone exposures (50 and 100 mm3 m-3) was observed in the green and white areas of variegated leaves of Hedera canariensis var. azorica L. In green tissue the photosynthetic activity was depressed via a stomatal mechanism, and in white regions no effect was observed. Chlorophyll fluorescence parameters remained unchanged in green portions, whereas in the white ones F(m) and F(v)/F(m) significantly diminished following ozone fumigation.File in questo prodotto:
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