Enzymes of phospholipid metabolism in the endoplasmic reticulum of castor bean endosperm

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Plant Physiol.; (United States)

DOI:https://doi.org/10.1104/pp.52.1.50· OSTI ID:6317758

Moore, T S; Lord, J M; Kagawa, T; Beevers, H

The intracellular location of several enzymes concerned with phospholipid metabolism was investigated by examining their distribution in organelles separated on sucrose gradients from total homogenates of castor bean (Ricinus communis var. Hale) endosperm. The enzymes phosphatidic acid phosphatase, CDP-diglyceride-inositol transferase, and phosphatidyletha-nolamine-L-serine phosphatidyl transferase were all primarily or exclusively confined to membranes of the endoplasmic reticulum. These results and those reported previously on lecithin synthesis establish a major role of the endoplasmic reticulum in phospholipid and membrane synthesis in plant tissues.

• Research Organization: Univ. of California, Santa Cruz
• OSTI ID: 6317758
• Journal Information: Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 52; ISSN PLPHA
• Country of Publication: United States
• Language: English

Related Subjects

550200 -- Biochemistry
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOSYNTHESIS
CARBON 14
CARBON ISOTOPES
CELL CONSTITUENTS
CELL MEMBRANES
ENZYME ACTIVITY
ENZYMES
ESTERS
EVEN-EVEN NUCLEI
ISOTOPES
LABELLED COMPOUNDS
LECITHINS
LIGHT NUCLEI
LIPIDS
MEMBRANES
METABOLISM
NUCLEI
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
PHOSPHOLIPIDS
PLANT TISSUES
PLANTS
RADIOISOTOPES
SYNTHESIS
YEARS LIVING RADIOISOTOPES