PHA production, from bacteria to plants

The genes encoding the polyhydroxyalkanoate (PHA) biosynthetic pathway in Ralstonia eutropha (3-ketothiolase, phaA or bktB; acetoacetyl-CoA reductase, phaB; and PHA synthase, phaC) were engineered for plant plastid targeting and expressed using leaf (e35S) or seed-specific (7s or lesquerella hydroxy...

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Veröffentlicht in:International journal of biological macromolecules 1999-06, Vol.25 (1), p.303-306
Hauptverfasser: Valentin, Henry E., Broyles, Debra L., Casagrande, Laura A., Colburn, Susan M., Creely, Wendi L., DeLaquil, Pamela A., Felton, Heather M., Gonzalez, Kathleen A., Houmiel, Kathryn L., Lutke, Kevin, Mahadeo, Debbie A., Mitsky, Timothy A., Padgette, Stephen R., Reiser, Steven E., Slater, Steven, Stark, David M., Stock, Robert T., Stone, Deborah A., Taylor, Nancy B., Thorne, Gregory M., Tran, Minhtien, Gruys, Kenneth J.
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container_end_page 306
container_issue 1
container_start_page 303
container_title International journal of biological macromolecules
container_volume 25
creator Valentin, Henry E.
Broyles, Debra L.
Casagrande, Laura A.
Colburn, Susan M.
Creely, Wendi L.
DeLaquil, Pamela A.
Felton, Heather M.
Gonzalez, Kathleen A.
Houmiel, Kathryn L.
Lutke, Kevin
Mahadeo, Debbie A.
Mitsky, Timothy A.
Padgette, Stephen R.
Reiser, Steven E.
Slater, Steven
Stark, David M.
Stock, Robert T.
Stone, Deborah A.
Taylor, Nancy B.
Thorne, Gregory M.
Tran, Minhtien
Gruys, Kenneth J.
description The genes encoding the polyhydroxyalkanoate (PHA) biosynthetic pathway in Ralstonia eutropha (3-ketothiolase, phaA or bktB; acetoacetyl-CoA reductase, phaB; and PHA synthase, phaC) were engineered for plant plastid targeting and expressed using leaf (e35S) or seed-specific (7s or lesquerella hydroxylase) promoters in Arabidopsis and Brassica. PHA yields in homozygous transformants were 12–13% of the dry mass in homozygous Arabidopsis plants and approximately 7% of the seed weight in seeds from heterozygous canola plants. When a threonine deaminase was expressed in addition to bktB, phaB and phaC, a copolyester of 3-hydroxybutyrate and 3-hydroxyvalerate was produced in both Arabidopsis and Brassica.
doi_str_mv 10.1016/S0141-8130(99)00045-8
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subjects Acetyl-CoA C-Acyltransferase - genetics
Acetyl-CoA C-Acyltransferase - metabolism
Acyltransferases - genetics
Acyltransferases - metabolism
Alcohol Oxidoreductases - genetics
Alcohol Oxidoreductases - metabolism
Arabidopsis - genetics
Arabidopsis - metabolism
Cupriavidus necator - enzymology
Cupriavidus necator - genetics
Homozygote
Models, Molecular
Molecular Structure
Plant Leaves
Plants - metabolism
Plants, Genetically Modified
Polyesters - metabolism
Recombinant Proteins - metabolism
Seeds
title PHA production, from bacteria to plants
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