A Study of the Growth and Photoperceptivity of Etiolated Oat Seedlings

A Study of the Growth and Photoperceptivity of Etiolated Oat Seedlings

The photoperceptivity of intact oat seedlings has been observed after pretreating them for 3 days in darkness with a number of substances—copper and manganese ions, EDTA, copper-glycine, glycine, nitrates, indoleacetic acid, ethanol, and carbon dioxide. None enhanced photosensitivity; carbon dioxide...

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Bibliographic Details
Published in:Journal of experimental botany Vol. 10; no. 2; pp. 220 - 232
Main Author: MER, C. L.
Format: Journal Article
Language:English
Published: Oxford University Press 01-06-1959
OXFORD AT THE CLARENDON PRESS
Subjects:
Carbon dioxide
Coleoptiles
Ethanol
Mesocotyls
Nitrates
Oats
Plant growth
Plant growth promoters
Plants
Seedlings
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Summary:The photoperceptivity of intact oat seedlings has been observed after pretreating them for 3 days in darkness with a number of substances—copper and manganese ions, EDTA, copper-glycine, glycine, nitrates, indoleacetic acid, ethanol, and carbon dioxide. None enhanced photosensitivity; carbon dioxide and ethanol reduced it. Copper-glycine in darkness promoted mesocoty1 growth and induced root formation. The effects of carbon dioxide and ethanol are shown to be identical and to account for this a speculative proposal is made about maturation. An alternative explanation of the growth of the mesocotyl then arises. The relationship between maturation and the behaviour of the seedling upon illumination is discussed.
Bibliography:istex:E0A35ADB5721D96492A1DDF785864E4559FE8108
ArticleID:10.2.220
ark:/67375/HXZ-FTTT57HM-G
ISSN:0022-0957
1460-2431
DOI:10.1093/jxb/10.2.220