Source:http://linkedlifedata.com/resource/pubmed/id/16664466
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
3
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| pubmed:dateCreated |
2010-6-29
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| pubmed:abstractText |
Mechanisms restricting the accumulation of chloroplast glycolipids in achlorophyllous etiolated or heat-treated 70S ribosome-deficient rye leaves (Secale cereale L. cv "Halo") and thereby coupling glycolipid formation to the availability of chlorophyll, were investigated by comparing [(14)C]acetate incorporation by leaf segments of different age and subsequent chase experiments. In green leaves [(14)C]acetate incorporation into all major glycerolipids increased with age. In etiolated leaves glycerolipid synthesis developed much more slowly. In light-grown, heat-bleached leaves [(14)C]acetate incorporation into glycolipids was high at the youngest stage but declined with age. In green leaves [(14)C]acetate incorporation into unesterified fatty acids and all major glycerolipids was immediately and strongly diminished after application of an inhibitor of chlorophyll synthesis, 4,6-dioxoheptanoic acid. The turnover of glyco- or phospholipids did not differ markedly in green, etiolated, or heat-bleached leaves. The total capacity of isolated ribosome-deficient plastids for fatty acid synthesis was not much lower than that of isolated chloroplasts. However, the main products synthesized from [(14)C]acetate by chloroplasts were unesterified fatty acids, phosphatidic acid, and diacylglycerol, while those produced by ribosome-deficient plastids were unesterified fatty acids, phosphatidic acid, and phosphatidylglycerol. Isolated heat-bleached plastids exhibited a strikingly lower galactosyltransferase activity than chloroplasts, suggesting that this reaction was rate-limiting, and lacked phosphatidate phosphatase activity.
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| pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-13428781,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-16661744,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-16662832,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-16662980,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-16663156,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-16663528,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-37120,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-534525,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-5420955,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-543720,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-638180,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-7294810,
http://linkedlifedata.com/resource/pubmed/commentcorrection/16664466-849284
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Nov
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| pubmed:issn |
0032-0889
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| pubmed:author | |
| pubmed:issnType |
Print
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| pubmed:volume |
79
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| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
646-52
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| pubmed:dateRevised |
2010-9-14
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| pubmed:year |
1985
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| pubmed:articleTitle |
Control of plastidic glycolipid synthesis and its relation to chlorophyll formation.
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| pubmed:affiliation |
Botanisches Institut, J. W. Goethe-Universität, Postfach 11 19 32, D-6000 Frankfurt am Main, Federal Republic of Germany.
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| pubmed:publicationType |
Journal Article
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