Salbitani, Giovanna (2010) Effects of sulphate-deficiency on cysteine metabolism in the green alga Chlorella sorokiniana. [Tesi di dottorato] (Unpublished)

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Item Type: Tesi di dottorato
Language: English
Title: Effects of sulphate-deficiency on cysteine metabolism in the green alga Chlorella sorokiniana
Creators:
CreatorsEmail
Salbitani, Giovannag.salbitani@hotmail.it
Date: 30 November 2010
Number of Pages: 98
Institution: Università degli Studi di Napoli Federico II
Department: Scienze biologiche
Doctoral School: Scienze biologiche
PHD name: Biologia applicata
PHD cycle: 23
PHD Coordinator:
nameemail
Ricca, EzioUNSPECIFIED
Tutor:
nameemail
Carfagna, Simonasimcarfa@unina.it
Date: 30 November 2010
Number of Pages: 98
Uncontrolled Keywords: Cysteine, sulphur metabolism
MIUR S.S.D.: Area 05 - Scienze biologiche > BIO/04 - Fisiologia vegetale
Date Deposited: 02 Dec 2010 11:08
Last Modified: 30 Apr 2014 19:45
URI: http://www.fedoa.unina.it/id/eprint/8254

Abstract

Plants, bacteria and fungi have the ability to assimilate inorganic sulphur and incorporate it into inorganic compounds. Animals on the contrary, do not assimilate inorganic sulphur; they require methionine as an essential amino acid for their source of sulphur nutrient. The amino acid cysteine (Cys) is the first committed molecule in plant metabolism containing sulphur and it is the sulphide donor for the generation of methionine, glutathione (GSH), phytochelatins, iron-sulphur clusters, vitamins, cofactors, and multiple secondary metabolites; that’s why the regulation of Cys-biosynthesis is critically important. The aim of this research was to investigate the effects of sulphur-deficiency on plant cysteine metabolism and to characterize the O-acetylserine(thiol)lyase (OASTL), a key-enzyme in cysteine biosynthesis.

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