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- Title
Effects of UV-B radiation on Olea europaea: comparisons between a greenhouse and a field experiment.
- Authors
Liakoura, Vally; Stavrianakou, Sotiria; Liakopoulos, George; Karabourniotis, George; Manetas, Yiannis
- Abstract
We compared growth, morphology, anatomy and physiology of field-grown Olea europaea L. plants after one year with or without supplemental UV-B radiation equivalent to the increase at ground level resulting from a 15% depletion in stratospheric ozone concentration over Patras, Greece (38.3° N, 29.1° E). In a parallel greenhouse experiment, plants were exposed for four months to either zero UV-B radiation or UV-B radiation equivalent to that of the supplemented outdoor treatment. In the field, the only significant changes in response to supplemental UV-B radiation were an increase in adaxial epidermal thickness and a decrease in total protein concentration. In the greenhouse-grown plants, UV-B radiation caused significant increases in abaxial cuticle thickness and trichome UV-B absorbing compounds. We conclude that Olea europaea exhibits high UV-B tolerance and will not be affected by the predicted increases in UV-B radiation.
- Subjects
ULTRAVIOLET radiation; BETA rays; EXPERIMENTAL agriculture; OLIVE; OZONE layer depletion; STRATOSPHERIC aerosols; GREENHOUSE plants; PLANT morphology
- Publication
Tree Physiology, 1999, Vol 19, Issue 13, p905
- ISSN
0829-318X
- Publication type
Article
- DOI
10.1093/treephys/19.13.905