Effects of long-term ozone exposure on citrus: Chlorophyll a fluorescence and gas exchange

Title:

Effects of long-term ozone exposure on citrus: Chlorophyll a fluorescence and gas exchange

Creator:

Calatayud, A., Iglesias, D. J., Talón, M., and Barreno, E.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:59425dce-08ed-46ae-b304-d5e332492984
uuid:59425dce-08ed-46ae-b304-d5e332492984
issn:0300-3604
doi:10.1007/s11099-006-0070-1

Subject:

chlorophyll fluorescence, Citrus, intercellular CO2 concentration, net photosynthetic rate, ozone, and stomatal conductance

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Three-years-old trees of Satsuma mandarin (Citrus unshiu [Mak.] Marc.) cv. Okitsu were exposed to O3 fumigation during long term (one year) in open-top chambers. As a result of the treatment, chlorophyll a fluorescence and gas exchange parameters were modified with respect to trees growing in O3-free conditions. Net photosynthetic rate and stomatal conductance decreased and intercellular CO2 concentration increased according to a reduction of the non-cyclic electron flow and a lower capacity to reduce the quinone pool. O3 also reduced the development of non-photochemical quenching preventing the dissipation of excess excitation energy and, therefore, generated several alterations in photosynthetic apparatus. All these effects were obtained in long-term exposure and higher O3 concentration. In O3 ambient conditions, the effects were minor. and A. Calatayud ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

548-554

Source:

Photosynthetica | 2006 Volume:44 | Number:4

Harvested from:

CDK

Metadata only:

false