1. Nitrogen metabolite repression of arginase, ornithine transaminase and allantoinase in a conditional ethionine-resistant mutant of Saccharomyces cerevisiae with low activity of catabolic NAD-specific glutamate dehydrogenase

   • W. J. Middelhoven
   • Mieke C. Hoogkamer-te Niet

   Physiology and Growth Pages: 417 - 432

2. Pythiaceous fungi associated with the decomposition of Nymphoides peltata

   • R. P. W. M. Jacobs

   Ecology Pages: 433 - 445

3. A simple purification method for enterotoxin F produced by Staphylococcus aureus and some properties of the toxin

   • S. Notermans
   • J. B. Dufrenne

   Laboratory Methods Pages: 447 - 455

4. Use of a single infusion bottle to culture and prepare potentially hazardous microorganisms for biochemical analysis. Culturing on solid media

   • A. C. M. Weijman
   • G. W. van Eijk

   Laboratory Methods Pages: 457 - 459

5. An evaluation of two commercial systems for the detection of oxidase activity in the genus Pasteurella

   • Patrick J. Blackall

   Laboratory Methods Pages: 461 - 464

6. Hansenula euphorbiaphila sp. nov., a new, diploid heterothallic yeast species

   • J. P. van der Walt

   Taxonomy Pages: 465 - 470

7. Sterigmatosporidium gen. n., a new heterothallic basidiomycetous yeast, the perfect state of a new species of Sterigmatomyces Fell

   • Gunda Kraepelin
   • Ursula Schulze

   Taxonomy Pages: 471 - 483

8. Immune system responses towards Treponema pallidium infection

   • J. D. Bos

   Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 485 - 486

9. Molecular characterization of Treponema pallidum proteins responsible for the human immune response to syphilis

   • R. V. W. van Eijk
   • J. D. A. van Embden

   Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 486 - 487

10. Transfusion syphilis: survival of Treponema pallidum in donor blood

    • J. J. van der Sluis
    • H. E. Menke
    • F. C. Kothe

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 487 - 488

11. Modern syphilis serology

    • R. V. W. van Eijk
    • H. E. Menke

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 488 - 489

12. Detection of Neisseria gonorrhoeae antigen with a solid phase enzyme immunoassay (Gonozyme®)

    • H. A. Aardoom
    • C. O. A. Iserief
    • E. Stolz

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 489 - 489

13. Penicillin-tolerant viridans streptococci and prevention of infective endocarditis

    • J. Dankert
    • J. Hess
    • Y. Holloway

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 490 - 492

14. Modification of existing methods for the detection of penicillin tolerance in Staphylococcus aureus

    • Wil H. F. Goessens
    • P. Fontijne
    • M. F. Michel

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 492 - 493

15. The effect of clavulanic acid on the antibacterial activity of ticarcillin

    • E. E. Stobberingh
    • A. W. Houben
    • C. P. A. van Boven

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 493 - 495

16. Optimization in typing of aminoglycoside-modifying enzymes

    • G. P. A. Bongaerts
    • L. Molendijk

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 495 - 496

17. Cell surface hydrophobicity of Staphylococcus species and adhesion onto biomaterials

    • A. H. Hogt
    • J. Dankert
    • J. A. de Vries

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 496 - 498

18. Haemolytic activity of Proteus mirabilis strains

    • P. G. H. Peerbooms
    • A. M. J. J. Verwey
    • D. M. MacLaren

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 498 - 499

19. Biotransformation of C-18 fatty acids and bile acids by Eubacterium lentum

    • H. Eyssen
    • A. Verhulst
    • S. Asselberghs

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 499 - 500

20. Selective decontamination of the digestive tract in oncological paediatric patients

    • C. D. M. Dobbelaar
    • J. de Kraker
    • P. A. Voute

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 500 - 501

21. ELISA and IHA using two different gonococcal pili as antigens and GCFT using whole gonococci as antigen. Comparison of results obtained by testing sera from patients attending an STD clinic in Rotterdam and from control groups

    • Arnold P. Oranje
    • Karin Reimann
    • Marc F. Michel

    Netherlands Society for Microbiology, Medical Section, and Netherlands Association of Laboratory Physicians Joint Meeting at Maastricht on 6 May 1982 Pages: 501 - 502

22. Microbiology of vacuum and gas-packed meat

    • S. J. Mulder

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 503 - 504

23. Vacuum packaging of meat products

    • H. Labots

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 504 - 507

24. Factors affecting the shelf life of chilled poultry: packaging and storage temperature

    • R. W. A. W. Mulder

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 507 - 509

25. Vacuum and gas packaging of vegetables

    • P. C. Koek

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 509 - 511

26. Gas- and vacuum-packing of potato products

    • M. J. H. Keijbets

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 511 - 512

27. Oxygen permeability of polyethylene-lined packages containing cultured milk products, and the growth of yeasts and moulds in them

    • L. P. M. Langeveld
    • A. C. Bolle

    Netherlands Society for Microbiology Meeting at Wageningen on 6 May 1982 Section for Food Microbiology Pages: 512 - 514

28. Dormancy and activation of Phycomyces spores

    • A. J. van Laere

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 515 - 515

29. Interspecies hybridisation in fungi following protoplast fusion

    • J. Anné

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 516 - 516

30. The sucrose phosphorylase of Leuconostoc mesenteroides: production and application

    • A. De Laporte
    • L. De Valk
    • E. J. Vandamme

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 516 - 519

31. Microbiological aspects of anaerobic digestion

    • P. F. Van Assche

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 520 - 520

32. Measuring and control in laboratory fermentors using a microcomputer. Practical experiences

    • B. H. A. van Kleeff

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 521 - 522

33. Estimation of microbial ATP in waters and soils

    • F. Kucnerowicz
    • R. Van de Werf
    • W. Verstraete

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 522 - 523

34. Use of the “net effect” sensor as an important tool in computer-controlled fermentations

    • D. R. De Buyser
    • J. A. Spriet
    • G. C. Vansteenkiste

    Netherlands Society for Microbiology Meeting on 19 November 1981 at Antwerp Section for Technical Microbiology Pages: 523 - 525

35. Annoucements

    Announcement Pages: 526 - 527