Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

MECHANISM OF THYLAKOID REORGANIZATION DURING CHLOROPLAST DEVELOPMENT IN HIGHER PLANTS

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Israel Journal of Plant Sciences

A reorganization of the components is known to occur in developing thylakoids after transfer to darkness. The mechanism controlling this process was investigated as to whether the reorganization early during greening in continuous light was due (i) to the ability of the thylakoids to increase the number of the PSI and PSII units, in order to reach the number of the mature chloroplast, or (ii) to the instability of the LHCP. Six- day etiolated bean leaves were exposed for various durations to intermittent light (LDC, 2 min light/98 min dark), and small PSI and PSII units, containing only the core of the units, were synthesized. The number of these units increased as the time in LDC increased. These leaves were then transferred to CL, where accumulation of chlorophyll b (Chi b) and LHCP took place and the photosynthetic units increased in size. Thereafter, these leaves were transferred to darkness. In leaves exposed to CL for 24 h after a short pre-exposure to intermittent light (14 LDC), a reorganization occurred after transfer to darkness, while in leaves exposed to CL for 24 h after a prolonged pre-exposure to intermittent light (42 LDC), no reorganization occurred. Chi b and LHCP complex accumulated in both cases, after transfer to CL. However, only in the first case, where the thylakoids contain reduced amounts of PSI and PSII units, is the reorganization of thylakoid components noticed. We conclude that the reorganization of thylakoid components which occurs when greening leaves are transferred to darkness takes place only in thylakoids with reduced numbers of PSI and PSII units, and that this probably occurs in order to increase the number of the PSI and PSII units and, accordingly, the photosynthetic efficiency of the thylakoids.

Affiliations: 1: Biology Department, Nuclear Research Center “Demokritos”, Greek Atomic Energy Commission

10.1080/0021213X.1984.10676994
/content/journals/10.1080/0021213x.1984.10676994
dcterms_title,pub_keyword,dcterms_description,pub_author
10
5
Loading
Loading

Full text loading...

/content/journals/10.1080/0021213x.1984.10676994
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1080/0021213x.1984.10676994
Loading

Article metrics loading...

/content/journals/10.1080/0021213x.1984.10676994
1984-05-13
2018-06-24

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Israel Journal of Plant Sciences — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation