Homology between 4.3 μm minicircular and plastomic DNA in chloroplasts of Acetabularia cliftonii Christoph EbertMartin J. TymmsHans-Georg Schweiger OriginalPaper Pages: 187 - 192
ISL1: a new transposable element in Lactobacillus casei Mariko Shimizu-KadotaMayumi KiwakiNobuo Tsuchida OriginalPaper Pages: 193 - 198
The sequence necessary for the infectivity of hop stunt viroid cDNA clones Tetsuo MeshiMasayuki IshikawaEishiro Shikata OriginalPaper Pages: 199 - 206
Modulation of chromatin structure in the regulation of the maize Adh1 gene Robert J. Ferl OriginalPaper Pages: 207 - 210
Spm and I element changes with the a-m2 8004 allele in maize L. V. ReddyPeter A. Peterson OriginalPaper Pages: 211 - 219
The DNA sequence of the gene for the secreted Bacillus subtilis enzyme levansucrase and its genetic control sites Michel SteinmetzDominique Le CoqPhilippe Gay OriginalPaper Pages: 220 - 228
Impaired nitrogen fixation and glutamine synthesis in methionine sulfoximine sensitive (MSs) mutants of Rhizobium phaseoli Enrique MorettSoledad MorenoGuadalupe Espin OriginalPaper Pages: 229 - 234
Physical and genetic analysis of IS110, a transposable element of Streptomyces coelicolor A3(2) Keith F. ChaterCelia J. BrutonIvan Tobek OriginalPaper Pages: 235 - 239
A molecular genetic analysis of insertions in the bronze locus in maize Hugo K. DoonerEdward WeckJames English OriginalPaper Pages: 240 - 246
Growth and macromolecular synthesis phenotypes of a heat-sensitive mutant strain, rip-1, of Neurospora crassa Peter J. RussellMelanie W. LooNancy S. Schricker OriginalPaper Pages: 247 - 251
Characterization of meiosis-deficient mutants by electron microscopy and mapping of four essential genes in the fission yeast Schizosaccharomyces pombe Chikashi ShimodaAiko HirataKenji Tanaka OriginalPaper Pages: 252 - 257
Molecular analysis of P element behavior in Drosophila simulans transformants Stephen B. DanielsLinda D. StrausbaughRobert A. Armstrong OriginalPaper Pages: 258 - 265
The recQ gene of Escherichia coli K12: molecular cloning and isolation of insertion mutants Koji NakayamaNobuto IrinoHiroaki Nakayama OriginalPaper Pages: 266 - 271
Dispensability of either penicillin-binding protein -1a or -1b involved in the essential process for cell elongation in Escherichia coli Jun-ichi KatoHideho SuzukiYukinori Hirota OriginalPaper Pages: 272 - 277
psi, a plasmid-linked Rhizobium phaseoli gene that inhibits exopolysaccharide production and which is required for symbiotic nitrogen fixation D. BorthakurJ. A. DownieJ. W. Lamb OriginalPaper Pages: 278 - 282
Changes in gene expression elicited by amino acid limitation in Neurospora crassa strains having normal or mutant cross-pathway amino acid control Harry J. Flint OriginalPaper Pages: 283 - 290
Mutation affecting the specific regulatory control of lysine biosynthetic enzymes in Saccharomyces cerevisiae Fernando RamosJean-Marie Wiame OriginalPaper Pages: 291 - 294
Transcription termination regions of coliphage T7 DNA: the effects of nusA1 Ian GarnerKaren D. CromieRichard S. Hayward OriginalPaper Pages: 295 - 301
Sequence of the 23S rRNA gene from the archaebacterium Methanococcus vannielii: evolutionary and functional implications Michael JarschAugust Böck OriginalPaper Pages: 305 - 312
Response of S. cerevisiae to N-methyl-N′-nitro-N-nitrosoguanidine: mutagenesis, survival and DDR gene expression Janet A. MagaKevin McEntee OriginalPaper Pages: 313 - 321
Colonization factor antigen II (CFA/II) of enterotoxigenic Escherichia coli: molecular cloning of the CS3 determinant Paul A. ManningKenneth N. TimmisGordon Stevenson OriginalPaper Pages: 322 - 327
Molecular cloning and functional analysis of the cysG and nirB genes of Escherichia coli K12, two closely-linked genes required for NADH-dependent nitrite reductase activity Heather MacdonaldJeff Cole OriginalPaper Pages: 328 - 334
Recessive lethal mutations within the bithorax-complex in Drosophila Stanley TiongLynda M. BoneJ. Robert S. Whittle OriginalPaper Pages: 335 - 342
Identification of the structural gene for the S9 ribosomal protein in the fungus Podospora anserina: a new protein involved in the control of translational accuracy Michelle Dequard-Chablat Short Communication Pages: 343 - 345
Effect of α-isopropylmalate on the synthesis of RNA and protein in Neurospora Daniele ArmaleoMeir FischerSamson R. Gross Short Communication Pages: 346 - 349
Cloning and nucleotide sequencing of the genes for ribosomal proteins S9 (rpsl) and L13 (rplM) of Escherichia coil Setsuko IsonoSabine ThammKatsumi Isono Erratum Pages: 350 - 350