Effect of chronic O3 fumigation on the activity of some Calvin cycle enzymes in two poplar clones

Title:

Effect of chronic O3 fumigation on the activity of some Calvin cycle enzymes in two poplar clones

Creator:

Degl'Innocenti, E., Guidi, L., and Soldatini, G. F.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:fbc45029-67b5-4d2d-9413-67c0b8f0c0e0
uuid:fbc45029-67b5-4d2d-9413-67c0b8f0c0e0
issn:0300-3604
doi:10.1023/A:1020127231198

Subject:

fructose 1,6-biphosphate phosphatase, glyceraldehyde-3-phosphate dehydrogenase, phosphoenolpyruvate carboxylase, ozone, phosphoribulose kinase, and ribulose-1,5-biphosphate carboxylase/oxygenase

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

The effects of long-term exposure to ozone (O3, 60 mm3 m-3 for 5 h d-1) on some Calvin cycle enzymes, in particular those modulated by the thioredoxin system, were studied in two poplar clones. These clones differ in sensitivity to O3. In the I-214 clone, the first effects from O3 treatment were seen after 40 d of fumigation, while the Eridano clone showed visible symptoms of damage after only 15 d of the treatment. Specific activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (E.C. 4.1.1.39) diminished in both the clones, while specific activity of phosphoenolpyruvate carboxylase (E.C. 4.1.1.31) increased. Exposure to O3 also caused a reduction in the specific activity of ribulose-1,5-bisphosphate kinase (E.C. 2.7.1.19) in both clones. At the end of the exposure to O3, specific activity of glyceraldehyde 3-phosphate dehydrogenase (E.C. 1.2.1.13) increased in I-214 and remained similar to the control in Eridano, whereas specific activity of fructose-1,6-bisphosphate phosphatase (E.C. 3.1.3.11) was higher in Eridano and similar to the control in I-214. and E. Degl'Innocenti, L. Guidi, G. F. Soldatini.

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

121-126

Source:

Photosynthetica | 2002 Volume:40 | Number:1

Harvested from:

CDK

Metadata only:

false