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Literature DB >> 16657568

A Lipid Requirement for Photosystem I Activity in Heptane-extracted Spinach Chloroplasts.

Abstract

A lipid requirement for photosystem I activity in Spinacia oleracea chloroplasts has been characterized. The transfer of electrons from tetramethyl-p-phenylenediamine through the chloroplast photosystem to viologen dye was used as an assay of photosystem I activity. Activity is diminished by prolonged heptane extraction and is partially restored by readdition of the extracted lipid. Extracted chloroplasts require plastocyanin for maximal restoration of activity. The effect of lipid extract in restoration is partially replaced by triglycerides containing unsaturated, C(18) fatty acids. Various potential redox carriers which occur naturally in chloroplasts do not substitute for extracted lipid. Galacto-lipids, sulfolipids, and phospholipids are not involved in the restoration of activity.

Entities: Chemical Species

Year: 1971 PMID： 16657568 PMCID： PMC365826 DOI： 10.1104/pp.47.1.135

Source DB: PubMed Journal: Plant Physiol ISSN： 0032-0889 Impact factor: 8.340

11 in total

1. Phosphorus assay in column chromatography.

Authors: G R BARTLETT
Journal: J Biol Chem Date: 1959-03 Impact factor: 5.157

2. Beta-carotene, an active component of chloroplasts.

Authors: V H LYNCH; C S FRENCH
Journal: Arch Biochem Biophys Date: 1957-08 Impact factor: 4.013

3. Cofactors and rates of photosynthetic phosphorylation by spinach chloroplasts.

Authors: A T JAGENDORF; M AVRON
Journal: J Biol Chem Date: 1958-03 Impact factor: 5.157

4. COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS.

Authors: D I Arnon
Journal: Plant Physiol Date: 1949-01 Impact factor: 8.340

5. Isolation of Two Quinones with Coenzyme Q Activity from Alfalfa.

Authors: F L Crane
Journal: Plant Physiol Date: 1959-09 Impact factor: 8.340

6. THE REACTIVITY OF A NATURALLY OCCURRING QUINONE (Q-255) IN PHOTOCHEMICAL REACTIONS OF ISOLATED CHLOROPLASTS.

Authors: N I Bishop
Journal: Proc Natl Acad Sci U S A Date: 1959-12 Impact factor: 11.205

7. Electron transport in chloroplasts. 3. The role of plastoquinone C.

Authors: M D Henninger; F L Crane
Journal: J Biol Chem Date: 1967-03-25 Impact factor: 5.157

8. Quantitative analysis of sulfolipid (sulfoquinovosyl diglyceride) and galactolipids (monogalactosyl and digalactosyl diglycerides) in plant tissues.

Authors: P G Roughan; R D Batt
Journal: Anal Biochem Date: 1968-01 Impact factor: 3.365

9. Inhibition and uncoupling of photophosphorylation in chloroplasts.

Authors: S Izawa; T N Connolly; G D Winget; N E Good
Journal: Brookhaven Symp Biol Date: 1966

10. Photosynthetic reactions with pyridine nucleotide analogs. II. 3-Pyridinealdehyde-diphosphopyridine nucleotide and 3-pyridinealdehyde-deamino-diphosphopyridine nucleotide.

Authors: P böger; C C Black; A San Pietro
Journal: Arch Biochem Biophys Date: 1966-07 Impact factor: 4.013

4 in total

1. Three chloroplast membrane models corresponding to different photosynthetic potentialities in the same plant.

Authors: D Laval-Martin; A Tremolières
Journal: Planta Date: 1980-06 Impact factor: 4.116

2. Participation of β-carotene in reactivation of PSI of heptane-extracted spinach chloroplasts.

Authors: A Tukendorf; W K Subczynski; T Baszynski
Journal: Photosynth Res Date: 1981-09 Impact factor: 3.573

3. Role of Galactolipids in Spinach Chloroplast Lamellar Membranes: II. Effects of Galactolipid Depletion on Phosphorylation and Electron Flow.

Authors: A B Shaw; M M Anderson; R E McCarty
Journal: Plant Physiol Date: 1976-05 Impact factor: 8.340

4. Acid-bath Phosphorylation in Heptane-extracted Chloroplasts.

Authors: C D Miles
Journal: Plant Physiol Date: 1972-11 Impact factor: 8.340

4 in total