1. Screening of larval/pupal P-element induced lethals on the second chromosome in Drosophila melanogaster: clonal analysis and morphology of imaginal discs

   • F. Roch
   • F. Serras
   • A. García-Bellido

   ORIGINAL PAPER Pages: 103 - 112

2. patufet, the gene encoding the Drosophila melanogaster homologue of selenophosphate synthetase, is involved in imaginal disc morphogenesis

   • B. Alsina
   • F. Serras
   • M. Corominas

   ORIGINAL PAPER Pages: 113 - 123

3. Characterization of a novel small RNA encoded by Dictyostelium discoideum mitochondrial DNA

   • M. Pi
   • T. Morio
   • Y. Tanaka

   ORIGINAL PAPER Pages: 124 - 131

4. Multiple elements of the S ₂  -RNase promoter from potato (Solanum tuberosum L.) are required for cell type-specific expression in transgenic potato and tobacco

   • M. Ficker
   • H.-H. Kirch
   • R. D. Thompson

   ORIGINAL PAPER Pages: 132 - 142

5. Grr1 functions in the ubiquitin pathway in Saccharomyces cerevisiae through association with Skp1

   • T. Kishi
   • T. Seno
   • F. Yamao

   ORIGINAL PAPER Pages: 143 - 148

6. The RHC21 gene of budding yeast, a homologue of the fission yeast rad21 ⁺gene, is essential for chromosome segregation

   • S.-J. Heo
   • K. Tatebayashi
   • H. Ikeda

   ORIGINAL PAPER Pages: 149 - 156

7. Low temperature-stimulated phosphorylation regulates the binding of nuclear factors to the promoter of Wcs120, a cold-specific gene in wheat

   • A. Vazquez-Tello
   • F. Ouellet
   • F. Sarhan

   ORIGINAL PAPER Pages: 157 - 166

8. Viviparous-5 encodes phytoene desaturase, an enzyme essential for abscisic acid (ABA) accumulation and seed development in maize

   • W. E. Hable
   • K. K. Oishi
   • K. S. Schumaker

   ORIGINAL PAPER Pages: 167 - 176

9. Low-copy-number molecules are produced by recombination, actively maintained and can be amplified in the mitochondrial genome of Brassicaceae: relationship to reversion of the male sterile phenotype in some cybrids

   • M. Bellaoui
   • A. Martin-Canadell
   • F. Budar

   ORIGINAL PAPER Pages: 177 - 185

10. Sequence comparison of the chromosomal regions encompassing the internalin C genes (inlC ) of Listeria monocytogenes and L. ivanovii

    • F. Engelbrecht
    • C. Dickneite
    • W. Goebel

    ORIGINAL PAPER Pages: 186 - 197

11. Anthocyanin regulatory mutations in pea: effects on gene expression and complementation by R-like genes of maize

    • A. Uimari
    • J. Strommer

    ORIGINAL PAPER Pages: 198 - 204

12. A new LexA-based genetic system for monitoring and analyzing protein heterodimerization in Escherichia coli

    • M. Dimitrova
    • G. Younès-Cauet
    • M. Granger-Schnarr

    ORIGINAL PAPER Pages: 205 - 212

13. Isolation and characterisation of an aryl-β-D-glucoside uptake and utilisation system (abg) from the gram-positive ruminal Clostridium species C. longisporum

    • G. D. Brown
    • J. A. Thomson

    ORIGINAL PAPER Pages: 213 - 218

14. Cloning and transcriptional analysis of the rplKA-or f31-rplJL gene cluster of Streptomyces griseus

    • C. Küster
    • W. Piepersberg
    • J. Distler

    ORIGINAL PAPER Pages: 219 - 229

15. Phenylalanine- and tyrosine-auxotrophic mutants of Saccharomyces cerevisiae impaired in transamination

    • A. Urrestarazu
    • S. Vissers
    • M. Grenson

    ORIGINAL PAPER Pages: 230 - 237

16. Characterisation of Saccharomyces cerevisiae ARO8 and ARO9 genes encoding aromatic aminotransferases I and II reveals a new aminotransferase subfamily

    • I. Iraqui
    • S. Vissers
    • A. Urrestarazu

    ORIGINAL PAPER Pages: 238 - 248