1. Supernumerary chromosomes in filamentous fungi

   • Sarah F. Covert

   REVIEW Pages: 311 - 319

2. Protein synthesis by isolated pea mitochondria is dependent on the activity of respiratory complex II

   • Martha L. Escobar Galvis
   • John F. Allen
   • G. Håkansson

   ORIGINAL PAPER Pages: 320 - 329

3. Developmental changes in heteroplasmy level and mitochondrial gene expression in a Drosophila subobscura mitochondrial deletion mutant

   • Nathalie Petit
   • Sylvie Touraille
   • S. Alziari

   ORIGINAL PAPER Pages: 330 - 339

4. Mapping of promoters for the nucleus-encoded plastid RNA polymerase (NEP) in the iojap maize mutant

   • Daniel Silhavy
   • P. Maliga

   ORIGINAL PAPER Pages: 340 - 344

5. Reciprocal translocation at duplicated RPL2 loci might cause speciation of Saccharomyces bayanus and Saccharomyces cerevisiae

   • Seung-Lim Ryu
   • Yoshikatsu Murooka
   • Y. Kaneko

   ORIGINAL PAPER Pages: 345 - 351

6. Identification of three ubiquitin genes of the rice blast fungus Magnaporthe grisea, one of which is highly expressed during initial stages of plant colonisation

   • Heather R. K. McCafferty
   • N. J. Talbot

   ORIGINAL PAPER Pages: 352 - 361

7. Ribosomal DNA internal transcribed spacer sequences do not support the species status of Ampelomyces quisqualis, a hyperparasite of powdery mildew fungi

   • Levente Kiss
   • K. K. Nakasone

   ORIGINAL PAPER Pages: 362 - 367

8. Paxilline-negative mutants of Penicillium paxilli generated by heterologous and homologous plasmid integration

   • Carolyn Young
   • Yasuo Itoh
   • B. Scott

   ORIGINAL PAPER Pages: 368 - 377

9. Development of a homologous transformation system for the human pathogenic fungus Aspergillus fumigatus based on the pyrG gene encoding orotidine 5′′-monophosphate decarboxylase

   • Gerhard Weidner
   • Christophe d'Enfert
   • A. A. Brakhage

   ORIGINAL PAPER Pages: 378 - 385