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Differential sensitivity to ozone in two poplar clones. : Analysis of thylakoid pigment–protein complexes by Annamaria Ranieri; Roberta Serini; Antonella Castagna; Cristina Nali; Barbara Baldan; Giacomo Lorenzini; Gian Franco Soldatini is a Agricultural and Biological Sciences article available to read on EtoBox.
What is Differential sensitivity to ozone in two poplar clones. : Analysis of thylakoid pigment–protein complexes about?
The effect of acute O~3~ exposure (5 h at 150 ppb) on photosynthetic electron transport and the thylakoid polypeptide pattern has been studied in 2‐month‐old cuttings of two poplar clones (__Populus deltoides__×__maximowiczii__ clone Eridano and __P__.×__euramericana__ clone I‐214), known for their differential response to O~3~ in terms of visible symptoms. The more sensitive Eridano developed severe blackish bifacial necrosis concentrated in the interveinal areas of the basal and intermediate leaves, while in the less sensitive I‐214 clone, visible symptoms were slight or entirely absent. A generalized, significant decrease in leaf pigment content was shown by both of the stressed clones, although the decline in __β__‐carotene content was much more marked in Eridano than in I‐214. Activation of the xanthophyll cycle was not detected in either clone. In both clones, immunoblot analysis of the thylakoid proteins showed a decrease in the levels of all the PSII polypeptides tested following O~3~ exposure, whereas the PsaA/B protein in the PSI core was more severely affected in Eridano than in I‐214. No changes in the chloroplast structure could be seen on electron microscopic study in
Who reads Differential sensitivity to ozone in two poplar clones. : Analysis of thylakoid pigment–protein complexes?
It is typically read by researchers, students, and practitioners in Agricultural and Biological Sciences.
- Author
- Annamaria Ranieri; Roberta Serini; Antonella Castagna; Cristina Nali; Barbara Baldan; Giacomo Lorenzini; Gian Franco Soldatini
- Publisher
- John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0031-9317)
- Published
- 2000
- Language
- EN
- Field
- Agricultural and Biological Sciences (Life Sciences)