Research in Photosynthesis

PDF Version Also Available for Download.

Description

The determination of the specific radioactivities of the chlorophylls and carotenoids of algae after photosynthesis with C/sup 14/O/sub 2/ is a formidable task, due to the extreme lability of these compounds. The whole success of the method depends on adequate chromatographic separations of the pigments from the colorless contaminants which are closely associated with them, and yet the time involved for such separations is sufficient for marked decomposition of the pigments to occur. It is suggested that the techniques of column chromatography, followed by centrifugallyaccelerated paper chromatography of the spectroscopically pure pigments, may resolve this problem. In an investigation of ... continued below

Physical Description

Pages: 161

Creation Information

Anderson, Joan Mary September 1, 1959.

Context

This thesis or dissertation is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this document can be viewed below.

Who

People and organizations associated with either the creation of this thesis or dissertation or its content.

Publisher

  • Lawrence Radiation Laboratory
    Publisher Info: California Univ., Berkeley. Lawrence Radiation Lab. (United States)
    Place of Publication: Berkeley, California

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this thesis or dissertation. Follow the links below to find similar items on the Digital Library.

Titles

  • Main Title: Research in Photosynthesis
  • Added Title: Part 1. Biosynthetic Studies on the Chlorophylls and Carotenoids of Algae.
  • Added Title: Part 2. The Relation of Branched-Chain Sugar Acids to the Cyanide Inhibition of Co*Sub 2/ Fixation

Description

The determination of the specific radioactivities of the chlorophylls and carotenoids of algae after photosynthesis with C/sup 14/O/sub 2/ is a formidable task, due to the extreme lability of these compounds. The whole success of the method depends on adequate chromatographic separations of the pigments from the colorless contaminants which are closely associated with them, and yet the time involved for such separations is sufficient for marked decomposition of the pigments to occur. It is suggested that the techniques of column chromatography, followed by centrifugallyaccelerated paper chromatography of the spectroscopically pure pigments, may resolve this problem. In an investigation of the action of cyanide on photosynthesis, green algae have been treated with radioactive cyanide. A multitude of products have been found to be formed in very short exposure times. One of these was identified with a material formed when algae are given radioactive CO/sub 2/ and nonradioactive KCN. This material has been identified as the cyanide addition product of ribulose-1,5- diphosphate. Upon hydrolysis it gives a branched-chain sugar acid (or mixture of isomers) closely related to hamamelonic acid. Perhaps the most important aspect of this work is the demonstration of the chemlcal role of cyanide. (auth)

Physical Description

Pages: 161

Notes

"Part I." "Part II."

Source

  • Other Information: Orig. Receipt Date: 31-DEC-60

Language

Identifier

Unique identifying numbers for this document in the Digital Library or other systems.

  • Report No.: UCRL-8870
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/4240026 | External Link
  • Office of Scientific & Technical Information Report Number: 4240026
  • Archival Resource Key: ark:/67531/metadc1026113

Collections

This document is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this thesis or dissertation?

When

Dates and time periods associated with this thesis or dissertation.

Creation Date

  • September 1, 1959

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

Description Last Updated

  • June 8, 2018, 6:38 p.m.

Usage Statistics

When was this document last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Thesis Or Dissertation

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Anderson, Joan Mary. Research in Photosynthesis, thesis or dissertation, September 1, 1959; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc1026113/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.