<p>Preface.- Foreword.- Part: Sulfur Metabolism – Mechanisms. Sulfate uptake and assimilation – whole plant regulation; Malcolm J. Hawkesford.- Molecular and cellular regulation of sulfate transport and assimilation; Naoko Yoshimoto, Kazuki Saito.- Manipulating the sulfur composition of seeds; Linda Tabe et al.- Regulation of expression of sulfate transporters and APS reductase in leaf tissue of Chinese cabbage (Brassica pekinensis); Luit J. De Kok et al.- Response of amino acid metabolism to sulfur starvation in Synechocystis sp. PCC 680; Hiroshi Kiyota, Masami Yokota Hirai, Masahiko Ikeuchi.-<sup> </sup>Regulation of the uptake of sulfate by Chinese cabbage (Brassica pekinensis) at various sulfate concentrations in the root environment; Aleksandra Koralewska et al.- Characterization of adenosine 5'- phosphosulfate kinase (APSK) genes from higher plants; Susanna C.-S. Leung et al.- Subcellular compartmentation of cysteine synthesis in plants – one step more; Malgorzata Lewandowska et al.- Preliminary characteristics of a tobacco gene down-regulated by sulfur deprivation and encoding a Cys-rich protein; Malgorzata Lewandowska et al.- Sulfate uptake and cysteine and GSH contents are increased by 5-aminolevulinic acid in Arabidopsis thaliana; Akiko Maruyama-Nakashita.- Partitioning of sulfur between primary and secondary metabolism; Sarah G. Mugford et al.- Interaction between atmospheric and pedospheric sulfur nutrition in Eucalyptus camaldulensis; Freek S. Posthumus et al.- Comparative analysis of amino acids from Arabidopsis wild type and mutant sir1-1 leaves by reverse-phase high-performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS); Arman Allboje Samami et al.- Homomeric interaction of the STAS domain in Sultr1;2; Nakako Shibagaki, Arthur R. Grossman.- Simultaneous determination of sulfur metabolites in plant tissue by LC-ESI-MS/MS; Mei-Hwei Tseng et al.- Part: Sulfur Metabolism - Mineral Interactions. Exploiting plant response to mineral ions to identify response specificity: overlapping transcriptome responses to sulfate, selenate and iron; Mutsumi Watanabe et al.- Regulation of iron-sulfur cluster formation in plastids; Karl Ravet et al.- Plant accumulation of sulfur’s sister element selenium - potential applications and ecological implications; Elizabeth A.H. Pilon-Smits.- Identification and sequence analysis of sulfate/selenate transporters in selenium hyper- and non-accumulating Astragalus plant species; Emmanuelle Cabannes et al.- Expression of ferritins ZmFer1 and ZmFer2 genes in shoots and roots of S-deprived young maize plants; Styliani N. Chorianopoulou et al.- Molybdate affects sulfate acquisition in Brassica juncea plants; Mario Malagoli et al.- Impact of enhanced copper levels and sulfate deprivation on the uptake and metabolism of sulfate in Chinese cabbage (Brassica pekinensis); Muhammad Shahbaz et al.- Part: Sulfur Metabolism - Food Security and Environmental Interactions. Sulfur nutrition and food security; Robert M. Norton.- Sulfur compounds in multiple compensation reactions of abiotic stress responses; Heinz Rennenberg, Cornelia Herschbach.- Cysteine synthesis in the chloroplast is not required for resistance of Arabidopsis thaliana to H<sub>2</sub>S fumigation; Hannah Birke et al.- Is the eliciting effect of stress metabolites on pathogenesis in winter wheat linked to the sulfur supply?; Elke Bloem et al.- Elevated CO<sub>2 </sub>concentration affects wheat (Triticum aestivum L.) grain sulfur concentration and N/S ratio; Nimesha Fernando et al.-<sup> </sup>Sulfate and nitrate assimilation in leaves of Quercus ilex and Quercus pubescens grown near natural CO<sub>2</sub> springs in central Italy; Cornelia Herschbach et al.- The gamma-glutamyl cycle in plants: Possible implications in apoplastic redox control and redox sensing; Antonio Masi.- Sulfate transport processes under drought stress: interaction with mycorrhization and elevated pCO<sub>2 </sub>in young pedunculate oak (Quercus robur L.) trees; Stefan Seegmüller, Heinz Rennenberg.- The role of cyclophilin Cyp 20-3 in activation of chloroplast serine acetyltransferase under high light stress; Anna Speiser et al.- <sup> </sup>Impact of lead and sulfur deprivation on soybean plants; Oksana Sytar et al.</p>