Abstract
AbstractCytochrome b559HP has been detected by spectrochemical assays in plastids of barley leaves greened under intermittent light (flashed leaves). The amount of cytochrome b559HP in these plastids was nearly 10‐fold lower than in normal chloroplasts when the results were expressed on plastid number. The amount of cytochrome b559HP phototransformable at ‐170°C was similar, on a C‐550 basis, in the plastids of flashed and normal green leaves. The appearance of the 2 components was simultaneous during the greening process under intermittent light and it is suggested that it was parallel to the increase of appressed regions in thylakoids.The illumination of flashed leaves under continuous light for 5 minutes allowed the appearance of a normal Photosystem‐II activity, but had no effect either on the cytochrome b559HP content of the plastids or on the photoreactivity of this component at low temperature.
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.
