1. IUMS news

   News Pages: i - iv

2. Bacillus thuringiensis: ecology, the significance of natural genetic modification, and regulation

   • C. Morris-Coole

   Review Pages: 471 - 477

3. Comparative study of three methods for cloning PCR products

   • Y. Abed
   • C. Bollet
   • P. De Micco

   Research Pages: 478 - 480

4. Electron microscopic examination of the extracellular polymeric substances in anaerobic granular biofilms

   • F. A. MacLeod
   • S. R. Guiot
   • J. W. Costerton

   Research Pages: 481 - 485

5. Anti-tumour components of the culture filtrates from Tricholoma sp.

   • F. Liu
   • V. E. C. Ooi
   • S. T. Chang

   Research Pages: 486 - 490

6. The microbiology of ‘kunun-zaki’, a cereal beverage from northern Nigeria, during the fermentation (production) process

   • B. J. O. Efiuvwevwere
   • O. Akona

   Research Pages: 491 - 493

7. Partial purification and some properties of lipoxygenase from Saccharomyces cerevisiae

   • B. Bisakowski
   • S. Kermasha
   • C. Schuepp

   Research Pages: 494 - 496

8. Sensitivity and specificity of phenoloxidase reactions of 1059 strains and species of Micromycetes cultivated on malt/agar medium

   • M. Rahouti
   • J.-L. Benoit-Guyod
   • P. Guiraud

   Research Pages: 497 - 501

9. Xanthan gum production by wild-type isolates of Xanthomonas campestris

   • M. Nitschke
   • R. W. S. P. Thomas

   Research Pages: 502 - 504

10. Purification of Neurospora crassa alkaline phosphatase without DNAse activity for use in molecular biology

    • M. Pereira
    • H. Pereira Jr
    • N. M. Martinez-Rossi

    Research Pages: 505 - 507

11. Chemical modifications of the cell-surface components of Lactobacillus fermentum FTPT 1405 and their effect on the flocculation of Saccharomyces cerevisiae

    • R. Bromberg
    • F. Yokoya

    Research Pages: 508 - 511

12. Factors influencing alcohol and extract separation in beer dialysis

    • I. Leskošek
    • M. Mitrović
    • V. Nedović

    Research Pages: 512 - 514

13. Continuous culture of Candida utilis: influence of medium nitrogen concentration

    • M. E. Lucca
    • M. E. Romero
    • D. A. S. Callieri

    Research Pages: 515 - 518

14. Induction of polygalacturonase and the formation of oxalic acid by pectin in brown-rot fungi

    • F. Green III
    • C. A. Clausen
    • T. L. Highley

    Research Pages: 519 - 524

15. Incompatibility and molecular relationships between small bacteriocinogenic plasmids of Staphylococcus aureus

    • S. A. Araujo
    • M. C. F. Bastos

    Research Pages: 525 - 528

16. Methane dosage to soil and its effect on plant growth

    • M. A. S. Arif
    • W. Verstraete

    Research Pages: 529 - 535

17. Degradation of 4,5-dichloroguaiacol by soil microorganisms

    • B. González
    • R. Brezny
    • T. W. Joyce

    Research Pages: 536 - 540

18. Solid-state fermentation of sugarcane bagasse with Flammulina velutipes and Trametes versicolor

    • M. Pal
    • A. M. Calvo
    • A. E. González

    Research Pages: 541 - 545

19. Effect of genetically modified Pseudomonas fluorescens introduced into soil contaminated with copper (II) on microbial community diversity in the soil and rhizosphere

    • J. Kozdrój

    Research Pages: 546 - 548

20. Chemical and microbial evaluation of in-situ bioremediation of hydrocarbons in anoxic groundwater enriched with nutrients and nitrate

    • R. M. Gersberg
    • K. G. Korth
    • B. B. Hemmingsen

    Research Pages: 549 - 558

21. Detection of polygalacturonases and pectin esterases in lactic acid bacteria

    • N. E. Karam
    • A. Belarbi

    Research Pages: 559 - 563

22. Integrated use of biocontrol agents with fungicides to control wilt incidence in pigeon-pea

    • H. Bhatnagar

    Research Pages: 564 - 566

23. Microbiology of pozol, a Mexican fermented maize dough

    • L. Nuraida
    • M. C. Wacher
    • J. D. Owens

    Research Pages: 567 - 571

24. Detection of cholera (ctx) and zonula occludens (zot) toxin genes in Vibrio cholerae O1, O139 and non-O1 strains

    • I. G. Rivera
    • M. A. R. Chowdhury
    • M. T. Martins

    OriginalPaper Pages: 572 - 577

25. Subcellular localization of IpaC, an invasion plasmid antigen of Shigella dysenteriae type 1 and its in-vitro binding capability to mammalian cells

    • N. M. Shaikh
    • A. N. Ghosh
    • R. Kumar

    OriginalPaper Pages: 578 - 584

26. Intraspecific hybridization between Coprinus cinereus and Schizophyllum commune by PEG-induced protoplast fusion and electrofusion

    • J. Zhao
    • S. -T. Chang

    Research Pages: 585 - 590

27. Short communication: Brewing properties of Nigerian white and yellow malted sorghum varieties mashed with external enzymes

    • R. C. Agu
    • M. U. Okenchi
    • A. H. Onwumelu

    Short Communication Pages: 591 - 592

28. Short communication: Thermostability of α-amylase produced by Bacillus sp. E2—a thermophilic mutant

    • N. Goyal
    • G. S. Sidhu
    • J. K. Gupta

    Short Communication Pages: 593 - 594

29. Short communication: Purification and properties of a glucose-forming amylase of Lactobacillus brevis

    • M. O. Ilori
    • O. O. Amund
    • O. Omidiji

    Short Communication Pages: 595 - 596

30. Short communication: Detection of non-culturable Vibrio cholerae O139, by PCR and fluorescent antibody methods, in laboratory microcosms

    • M. S. Islam
    • M. J. Alam
    • R. B. Sack

    Short Communication Pages: 597 - 598

31. Short communication: Adverse effect of surface-active reagents on the bioleaching of pyrite and chalcopyrite by Thiobacillus ferrooxidans

    • G. Huerta
    • B. Escobar
    • R. Badilla-Ohlbaum

    Short Communication Pages: 599 - 600

32. Short communication: Decolourization of Crystal Violet by fungi

    • Ö. Ye§ilada

    Short Communication Pages: 601 - 602

33. Meeting announcements

    Events Pages: 603 - 603

34. Erratum

    Erratum Pages: 603 - 603