Photosynthetica 1998, 35(2):247-253 | DOI: 10.1023/A:1006914924287

Photosynthesis of Hedera Canariensis var. Azorica Variegated Leaves as Affected by Ozone

G.F. Soldatini1, C. Nali2, L. Guidi1, G. Lorenzini2
1 Dipartimento di Chimica e Biotecnologie Agrarie, Università degli Studi, Pisa, Italy
2 Sez. Patologia Vegetale, Dipartimento Coltivazione e Difesa Specie Legnose, Università degli Studi, Pisa, Italy

A 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 Fm and Fv/Fm significantly diminished following ozone fumigation.

Additional key words: chlorophyll; fluorescence; ivy; net photosynthetic rate; stomatal conductance; transpiration

Prepublished online: June 1, 1998; Published: January 1, 1998  Show citation

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Soldatini, G.F., Nali, C., Guidi, L., & Lorenzini, G. (1998). Photosynthesis of Hedera Canariensis var. Azorica Variegated Leaves as Affected by Ozone. Photosynthetica, 35(2), 247-253. doi: 10.1023/A:1006914924287
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