Abstract
The identity of the pigment responsible for the light-induced 518 nanometer absorbance change was investigated by extraction and reconstitution of spinach chloroplasts. Heptane extraction of carotene and quinones from lyophilized chloroplasts removes absorbance changes at 518 and 475 nanometers activated by both laser flash and continuous illumination. Some electron transport activity is always present, even in carotene- and quinone-depleted chloroplasts, but the light-induced pH increase disappears following the first extraction step. Readdition of pure beta-carotene partially restores the 518 and 475 nanometer absorbance changes.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
