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The homozygous and heterozygous effects of an aurea mutation on plastid development in spruce (Picea abies (L.) Karst.)

Walles, Björn (1967). The homozygous and heterozygous effects of an aurea mutation on plastid development in spruce (Picea abies (L.) Karst.). Technical Report. Stockholm: Predecessors to SLU > Royal School of Forestry, Sveriges lantbruksuniversitet. Studia forestalia Suecica ; 60
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Abstract

A11 electron niicroscopical investigation has been made of plastid developnienti n spruce plants which are homozygous or heterozygous for a semi-dominant aurea mutation. The cotyledons of normal spruce seedlings synthesise chlorophyll and develop chloroplasts both in the dark and in the light. The chloroplasts in dark-grown seedlings have grana and severa1 prolamellar bodies. No chlorophyll was detected in acetone extracts of light-grown or dark-grown seedlings which were homozygous for the aurea factor. In these yellow lethal seedlings,plastid morphogenesis is blocked prior to the formation of prolamellar bodies. In the yellon-green heterozygous aurea seedlings, clorophyll synthesis is reduced; when grown in the dark they have a clorophyll content that is only 50 per cent of that in corresponding wild type individuals. The chloroplasts of these dark-grown aurea seedlings possess several prolamellar bodies and a poorly differentiated lamellar system, in which the grana usually contain only two or three discs. Aurea plants develop in the light an abnormal lamellar system with grana which appear sickle-shaped in cross-section. The yellon-green needles possess the ability of spontaneous greening. The chloroplasts in older green needles of the mutant are normalised and indistinguishable from wild type chloroplasts.

Authors/Creators:Walles, Björn
Title:The homozygous and heterozygous effects of an aurea mutation on plastid development in spruce (Picea abies (L.) Karst.)
Series/Journal:Studia forestalia Suecica (0039-3150)
Year of publishing :1967
Number:60
Number of Pages:20
Place of Publication:Stockholm
Publisher:Skogshögskolan
ISSN:0039-3150
Language:English
Publication Type:Report
Full Text Status:Public
Subjects:Obsolete subject words > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
Keywords:homozygous effects, heterozygous effects, Aurea mutation, Picea abies, plastid development, seedlings
URN:NBN:urn:nbn:se:slu:epsilon-9-138
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-9-138
ID Code:5845
Department:Predecessors to SLU > Royal School of Forestry
Deposited By: Skogsbiblioteket Umeå
Deposited On:11 Mar 2011 00:00
Metadata Last Modified:17 Dec 2015 14:35

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