This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Web of Science (59) Citing Articles via Google Scholar Google Scholar Articles by Boffey, S. A. Articles by Leech, R. M. Search for Related Content PubMed PubMed Citation Articles by Boffey, S. A. Articles by Leech, R. M. Agricola Articles by Boffey, S. A. Articles by Leech, R. M.

Articles

Influence of Cell Age on Chlorophyll Formation in Light-grown and Etiolated Wheat Seedlings ¹

Department of Biology, University of York, York YO1 5DD England

A method is described for relating the age of a cereal leaf cell to its distance from the leaf base. The rates of chlorophyll synthesis per plastid in the first leaf of light-grown and of greening etiolated seedlings of wheat (Triticum aestivum, var. Maris Dove) increase with cell age. Normally developing plastids of light-grown wheat take over 24 hours to reach the chlorophyll a/b ratio characteristic of mature wheat chloroplasts (4.5), but mature etioplasts need only 8 hours light to achieve this a/b ratio. Plastid greening potential depends only on cell age, whereas the chlorophyll a/b ratio is influenced both by cell age and by light.

³ Present address: Botanical Laboratory, University of Oslo, Box 1045, Blindern, Oslo 3, Norway.

¹ This work was supported by grants to S.A.B. from the Science Research Council and to G. S. from the Royal Society.

This article has been cited by other articles:

				S. Meyer, A. Cartelat, I. Moya, and Z. G. Cerovic UV-induced blue-green and far-red fluorescence along wheat leaves: a potential signature of leaf ageing J. Exp. Bot., February 1, 2003; 54(383): 757 - 769. [Abstract] [Full Text] [PDF]

				H. Schnyder and R. de Visser Fluxes of Reserve-Derived and Currently Assimilated Carbon and Nitrogen in Perennial Ryegrass Recovering from Defoliation. The Regrowing Tiller and Its Component Functionally Distinct Zones Plant Physiology, April 1, 1999; 119(4): 1423 - 1436. [Abstract] [Full Text]