Search: onr:"swepub:oai:DiVA.org:umu-44599" >
Acclimation of Arab...
Acclimation of Arabidopsis thaliana to the light environment : the existence of separate low light and high light responses
-
Bailey, S (author)
-
Walters, R G (author)
-
- Jansson, Stefan, 1959- (author)
- Umeå universitet,Institutionen för fysiologisk botanik,Umeå Plant Science Centre (UPSC)
-
show more...
-
Horton, P (author)
-
show less...
-
(creator_code:org_t)
- 2001
- 2001
- English.
-
In: Planta. - 0032-0935 .- 1432-2048. ; 213:5, s. 794-801
- Related links:
-
https://urn.kb.se/re...
Abstract
Subject headings
Close
- The capacity for photosynthetic acclimation in Arabidopsis thaliana (L.) Heynh. cv. Landsberg erecta was assessed during growth over a broad range of irradiance. Discontinuities in the response to growth irradiance were revealed for the light- and CO2-saturated rate of photosynthesis (P-max) and the ratio of chlorophyll a to chlorophyll b (Chl a/b). Three separate phases in the response of P-max and Chl a/b to growth light were evident, with increases at low and high irradiance ranges and a plateau at intermediate irradiance. By measuring all chlorophyll-containing components of the thylakoid membrane that contribute to Chl alb we reveal that distinct strategies for growth at low and high irradiance underlie the discontinuous response. These strategies include, in addition to changes in the major light-harvesting complexes of photosystem II (LHCII) , large shifts in the amounts of both reaction centres as well as significant changes in the levels of minor LHCII and LHCI components.
Keyword
- Arabidopsis (light acclimation)
- chlorophyll
- light acclimation
- light-harvesting
- photosynthesis
- photosystem
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
-
Planta
(Search for host publication in LIBRIS)
To the university's database