Characterization of Elemental Sulfur in Isolated Intact Spinach Chloroplasts | Zendy

Jacques Joyard | Zendy; Éric Forest | Zendy; Elizabeth Blée | Zendy; Roland Douce | Zendy

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Characterization of Elemental Sulfur in Isolated Intact Spinach Chloroplasts

Author(s) -

Jacques Joyard,

Éric Forest,

Elizabeth Blée,

Roland Douce

Publication year - 1988

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.88.4.961

Subject(s) - spinacia , sulfur , sulfide , spinach , chemistry , chloroplast , mass spectrometry , sodium sulfide , sulfate , nuclear chemistry , inorganic chemistry , chromatography , biochemistry , organic chemistry , gene

Incubation of intact spinach (Spinacia oleracea L.) chloroplasts in the presence of (35)SO(4) (2-) resulted in the light-dependent formation of a chloroform-soluble sulfur-containing compound distinct from sulfolipid. We have identified this compound as the most stable form (S(8)) of elemental sulfur (S(0), valence state for S = O) by mass spectrometry. It is possible that elemental sulfur (S(0)) was formed by oxidation of bound sulfide, i.e. after the photoreduction of sulfate to sulfide by intact chloroplasts, and released as S(8) under the experimental conditions used for analysis.

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