Document Detail

Cyclic changes in chloroplast structure in synchronized Euglena gracilis.
MedLine Citation:
PMID:  823326     Owner:  NLM     Status:  MEDLINE    
In populations of Euglena gracilis strain Z synchronized by cultivation on a repetitive light-dark cycle, chloroplasts undergo cyclic changes in strucutre. During most of the light period chloroplasts are relatively compact with closely appressed lamellae; during the dark (division) period the chloroplasts become quite distended. This change persists for at least one cycle even when the cells are left in continuous light, suggesting that the periodicity may be related more to the age of the cell than to a direct effect of light. In addition, the pyrenoid in synchronized cells has a transient existence, being present only in the first half of the light period.
J R Cook; S S Haggard; P Harris
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of protozoology     Volume:  23     ISSN:  0022-3921     ISO Abbreviation:  J. Protozool.     Publication Date:  1976 Aug 
Date Detail:
Created Date:  1976-12-03     Completed Date:  1976-12-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2985197R     Medline TA:  J Protozool     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  368-73     Citation Subset:  IM    
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MeSH Terms
Cell Division
Chloroplasts / ultrastructure*
Euglena gracilis / ultrastructure*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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