Skip Navigation

This Article
Right arrow Full Text (PDF)
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by MOORE, K. G.
Right arrow Articles by LOVELL, P. H.
Right arrow Search for Related Content
PubMed
Right arrow Articles by MOORE, K. G.
Right arrow Articles by LOVELL, P. H.
Agricola
Right arrow Articles by MOORE, K. G.
Right arrow Articles by LOVELL, P. H.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 1972 Oxford University Press

RESEARCH-ARTICLE

A Comparative Study of Chlorophyll Production in Cotyledons

K. G. MOORE, KATRINA BENTLEY and P. H. LOVELL

School of Plant Biology, University College of North Wales U. K.

Chlorophyll production was studied in four species with cotyledons differing widely in photosynthetic potential.

When cotyledons were detached from dark-grown seedlings at intervals during germination and exposed to light for 24–48 h, maximum chlorophyll production was found after 8 days of dark-germination in french bean, runner bean, and lupin, and after 5 days in mustard. Chlorophyll formation was reduced when the cotyledons were detached earlier or later than this time, and during the first 1–2 days of germination the cotyledons produced very little chlorophyll. With later times of excision the ability to accumulate chlorophyll increased, rapidly in lupin and mustard and more slowly in the beans.

A comparison of chlorophyll accumulation by attached cotyledons and those excised during the first 24 h of germination showed a fourfold enhancement of chlorophyll content in detached french-bean cotyledons and a fourfold reduction in chlorophyll content in detached mustard cotyledons, whilst chlorophyll accumulation was similar in both the attached and detached cotyledons of lupin.

The results are discussed in relation to the possible promotive and inhibitory influence of the seedling axis on greening of cotyledons differing in their potential for expansion and in the amount of reserve material stored.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.