Changes of net photosynthesis, antioxidant enzyme activities, and antioxidant contents of Liriodendron tulipifera under elevated ozone

Title:

Changes of net photosynthesis, antioxidant enzyme activities, and antioxidant contents of Liriodendron tulipifera under elevated ozone

Creator:

Ryang, S. Z., Woo, S. Y., Kwon, S. Y., Kim, S. H., Lee, S. H., Kim, K. N., and Lee, D. K.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1c56b57e-266a-4de5-b5c3-13642e83df88
uuid:1c56b57e-266a-4de5-b5c3-13642e83df88
issn:0300-3604
doi:10.1007/s11099-009-0005-8

Subject:

ascorbate, catalase, chlorophyll content and fluorescence, glutathione reductase, irradiation, peroxidase, O3, superoxide dismutase, and water use efficiency

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Liriodendron tulipifera was exposed to gradually elevated ozone concentrations of 100-300 μg kg-1 in the naturally irradiated environment chamber. During 15 d of exposure to O3, net photosynthetic rate (PN) decreased and there was large difference between the control (C) and treatment with ozone (OT), while there was no significant difference in water use efficiency. Total chlorophyll content as well as the value of fluorescence parameter Fv/Fm decreased, while antioxidant enzyme activities related to ascorbate-glutathione cycle increased after 15 d of OT. Unchanged contents of ascorbate and glutathione indirectly suggest that the species hastened the antioxidant's oxidization/reduction cycle using enzymes instead of expanding their pool against oxidative stress. and S. Z. Ryang ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

19-25

Source:

Photosynthetica | 2009 Volume:47 | Number:1

Harvested from:

CDK

Metadata only:

false