Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1989 Jul;90(3):1077-83.
doi: 10.1104/pp.90.3.1077.

b-Type Cytochromes in Higher Plant Plasma Membranes

H Asard  1 , M Venken, R Caubergs, W Reijnders, F L Oltmann, J A De Greef
Affiliations

b-Type Cytochromes in Higher Plant Plasma Membranes

H Asard et al. Plant Physiol. 1989 Jul.

Abstract

The composition and characteristics of b-type cytochromes from higher plant plasma membranes, purified using aqueous two-phase partitioning, were investigated. At least three different cytochromes were identified by their wavelength maxima and redox midpoint potentials (E(0)'). Cytochrome b-560.7 (E(0)' from + 110 to + 160 millivolts) was present in zucchini (Cucurbita pepo) hypocotyls and bean (Phaseolus vulgaris L.) hooks, although in different concentrations. The main component in cauliflower (Brassica oleracea L.) inflorescences (cytochrome b-558.8) is probably functionally similar to this cytochrome. The plasma membrane generally contains two to three cytochrome species. However, the occurrence and concentrations were species dependent. The high potential cytochrome can be reduced by ascorbate but not NADH, and may be involved in blue light perception.

PubMed Disclaimer

References

    1. Eur J Biochem. 1975 Nov 1;59(1):281-6 - PubMed
    1. Eur J Biochem. 1975 Jul 1;55(2):333-41 - PubMed
    1. Biochim Biophys Acta. 1982 Aug 20;681(2):177-90 - PubMed
    1. Biochem J. 1981 Mar 15;194(3):743-51 - PubMed
    1. Plant Physiol. 1986 Feb;80(2):384-9 - PubMed

LinkOut - more resources