Properties of Magnesium Chelatase in Greening Etioplasts | Zendy

Thomas P. Fuesler | Zendy; Lawrence A. Wright | Zendy; Paul A. Castelfranco | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Properties of Magnesium Chelatase in Greening Etioplasts

Author(s) -

Thomas P. Fuesler,

Lawrence A. Wright,

Paul A. Castelfranco

Publication year - 1981

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.67.2.246

Subject(s) - chelation , greening , chemistry , magnesium , enzyme , biochemistry , deferoxamine , chromatography , inorganic chemistry , biology , organic chemistry , ecology

Evidence was obtained by means of low temperature spectrofluorimetry and high pressure liquid chromatography for the exclusive chelation of Mg(2+) into protoporphyrin IX by a plastid preparation extracted from greening cucumber cotyledons. Under the experimental conditions which were optimized for Mg(2+) chelation, Zn(2+) chelation was not detected. However, Zn(2+) chelation was observed when ATP was omitted and ZnCl(2) was added to the incubation mixture. The observed Zn(2+) chelation was partially nonenzymic. The requirements for the enzyme, Mg chelatase, are discussed in terms of the regulatory function of this enzyme.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research