Irradiance prior to and during desiccation improves the tolerance to excess irradiance in the desiccated state of the old forest lichen Lobaria pulmonaria

Title:

Irradiance prior to and during desiccation improves the tolerance to excess irradiance in the desiccated state of the old forest lichen Lobaria pulmonaria

Creator:

Štepigová, J., Gauslaa, Y., Cempírková-Vráblíková, H., and Solhaug, K. A.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4c80ecaf-282c-4167-8e2a-cc272853fded
uuid:4c80ecaf-282c-4167-8e2a-cc272853fded
issn:0300-3604
doi:10.1007/s11099-008-0050-8

Subject:

chlorophyll fluorescence, photosynthetic quenching, photoinhibition, and xanthophyll cycle

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Hydrated thalli of the lichen Lobaria pulmonaria were either preconditioned to dim irradiance (DI, 5 µmol m-2 s-1) or medium irradiance (MI, 200 µmol m-2 s-1) for 6 h. After this 6 h period, the thalli were allowed to desiccate under the two respective irradiances. Thereafter, these dry lichens were exposed to high irradiance (HI, 1 000 µmol m-2 s-1) for 60 h. After this HI treatment, the maximal photochemical quantum yield (FV/FM) and the de-epoxidation state of xanthophyll cycle pigments (DEPS) were highest in thalli preconditioned to MI. Hence irradiance in the last hydrated period before sampling is significant for the physiological state of lichens. A standardized irradiance pre-treatment before start of experiments is recommended. and J. Štepigová ... [et al.].

Language:

Multiple languages

Rights:

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

Coverage:

286-290

Source:

Photosynthetica | 2008 Volume:46 | Number:2

Harvested from:

CDK

Metadata only:

false