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1998

Assessment of environmental conditions that favor hepatotoxic and neurotoxic Anabaena spp. strains cultured under light limitation at different temperatures

Rapala, J. & Sivonen, K., 1998, In : Microbial Ecology. 36, p. 181-192 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization of the nisFEG operon of the nisin Z producing Lactococcus lactis subsp lactis N8 strain

Immonen, T. & Saris, P. E. J., 1998, In : DNA Sequence. 9, p. 263-274 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Evidence for a mosaic structure of the Tn5481 in Lactococcus lactis N8

Immonen, T., Wahlstrom, G., Takala, T. & Saris, P. E. J., 1998, In : DNA Sequence. 9, p. 245-261 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Folding of active beta-lactamase in the yeast cytoplasm before translocation into the endoplasmic reticulum. Mol Biol Cell. 1998 4:817-27

Paunola E, Suntio T, Jämsä E, Makarow M. , 1998, In : Molecular Biology of the Cell.

Research output: Contribution to journalArticleScientificpeer-review

Seven new microcystins possessing two L-glutamic acid units, isolated from Anabaena sp. strain 186

Namikoshi, M., Yuan, M., Sivonen, K., Carmichael, W. W., Rinehart, K. L., Rouhiainen, L., Sun, F., Brittain, S. & Otsuki, A., 1998, In : Chemical Research in Toxicology. 11, p. 143-149 7 p.

Research output: Contribution to journalArticleScientificpeer-review

The mitochondrial toxin produced by Streptomyces griseus strains isolated from an indoor environment is valinomycin

Andersson, M. A., Mikkola, R., Kroppenstedt, R. M., Rainey, F. A., Peltola, J., Helin, J., Sivonen, K. & Salkinoja-Salonen, M. S., 1998, In : Applied and Environmental Microbiology. 64, p. 4767-4773 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Variation of microcystin content of cyanobacterial blooms and isolated strains in Lake Grand-Lieu (France)

Vezie, C., Brient, L., Sivonen, K., Bertru, G., Lefeuvre, J. C. & Salkinoja-Salonen, M., 1998, In : Microbial Ecology. 35, p. 126-135 10 p.

Research output: Contribution to journalArticleScientificpeer-review

1997

Characterization of cyanobacteria by SDS-PAGE of whole-cell proteins and PCR/RFLP of the 16S rRNA gene

Lyra, C., Hantula, J., Vainio, E., Rapala, J., Rouhiainen, L. & Sivonen, K., 1997, In : Archives of Microbiology. 168, p. 176-184 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Comparative study of toxic and non-toxic cyanobacterial products: A novel glycoside, suomilide, from non-toxic Nodularia spumigena HKVV

Fujii, K., Sivonen, K., Adachi, K., Noguchi, K., Shimizu, Y., Sano, H., Hirayama, K., Suzuki, M. & Harada, K., 1997, In : Tetrahedron Letters. 38, p. 5529-5532 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Comparative study of toxic and non-toxic cyanobacterial products: Novel peptides from toxic Nodularia spumigena AV1

Fujii, K., Sivonen, K., Adachi, K., Noguchi, K., Sano, H., Hirayama, K., Suzuki, M. & Harada, K., 1997, In : Tetrahedron Letters. 38, p. 5525-5528 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Growth, nitrogen fixation, and nodularin production by two Baltic sea cyanobacteria

Lehtimaki, J., Moisander, P., Sivonen, K. & Kononen, K., 1997, In : Applied and Environmental Microbiology. 63, p. 1647-1656 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Isolation of a Lactococcus lactis strain with high resistance to nisin and increased nisin production

Qiao, M., Omaetxebarria, M. J., Ra, R., Oruetxebarria, I. & Saris, P. E., 1997, In : Biotechnology Letters. 1997 / 19, p. 199 - 202 4 p.

Research output: Contribution to journalArticleScientificpeer-review

Occurrence of microcystin-containing cyanobacterial blooms in freshwaters of Brittany (France)

Vezie, C., Brient, L., Sivonen, K., Bertru, G., Lefeuvre, J. C. & Salkinoja-Salonen, M. S., 1997, In : Archiv für Hydrobiologie. 139, p. 401-413 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Persistence of cyanobacterial hepatotoxin, microcystin-LR in particulate material and dissolved in lake water

Lahti, K., Rapala, J., Fardig, M., Niemela, M. & Sivonen, K., 1997, In : Water Resources Research. 31, p. 1005-1012 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Variation of microcystins, cyanobacterial hepatotoxins, in Anabaena spp. as a function of growth stimuli

Rapala, J., Sivonen, K., Lyra, C. & Niemela, S. I., 1997, In : Applied and Environmental Microbiology. 63, p. 2206-2212 7 p.

Research output: Contribution to journalArticleScientificpeer-review

1996

Development of toxic cyanobacteria in western France. Detection of toxicity with Artemia salina tests

Vezie, C., Sivonen, K., Brient, L., Bertru, G. & Lefeuvre, J. C., 1996, In : Annales de Limnologie. 32, p. 123-128 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Evidence for a role of NisT in transport of the lantibiotic nisin produced by Lactococcus lactis N8

Qiao, M. & Saris, P. E., 1996, In : FEMS Microbiology Letters. 1996 7 144, p. 89 - 93 5 p.

Research output: Contribution to journalArticleScientificpeer-review

Genes responsible for nisin synthesis, regulation and immunity form a regulon of two operons and are induced by nisin in Lactoccocus lactis N8

Ra, S-G. R., Qiao, M., Immonen, T., Pujana, I. & Saris, P. E., 1996, In : Microbiology. 142, p. 1281-1288 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Hepatotoxic microcystin diversity in cyanobacterial blooms collected in Portuguese freshwaters

Vasconcelos, V. M., Sivonen, K., Evans, W. R., Carmichael, W. W. & Namikoshi, M., 1996, In : Water Resources Research. 30, p. 2377-2384 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Regulation of the nisin operons in Lactococcus lactis N8

Qiao, M., Ye, S., Koponen, O., Ra, S-G. R., Usabiaga, M., Immonen, T. & Saris, P. E., 1996, In : Journal of Applied Microbiology. 80, p. 626-634 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Screening for cyanobacterial toxins in bloom and strain samples by thin layer chromatography

Pelander, A., Ojanpera, I., Sivonen, K., Himberg, K., Waris, M., Niinivaara, K. & Vuori, E., 1996, In : Water Research. 30, p. 1464-1470 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Solution structure of nodularin - An inhibitor of serine/threonine-specific protein phosphatases

Annila, A., Lehtimaki, J., Mattila, K., Eriksson, J. E., Sivonen, K., Rantala, T. T. & Drakenberg, T., 1996, In : Journal of Biological Chemistry. 271, p. 16695-16702 8 p.

Research output: Contribution to journalArticleScientificpeer-review

1995

ASSESSMENT OF RAPID BIOASSAYS FOR DETECTING CYANOBACTERIAL TOXICITY

LAHTI, K., AHTIAINEN, J., RAPALA, J., SIVONEN, K. & NIEMELA, S. I., 1995, In : Letters in Applied Microbiology. 21, p. 109-114 6 p.

Research output: Contribution to journalArticleScientificpeer-review

BIOSYNTHESIS OF ANATOXIN-A IN ANABAENA-FLOS-AQUAE AND HOMOANATOXIN-A IN OSCILLATORIA-FORMOSA

HEMSCHEIDT, T., RAPALA, J., SIVONEN, K. & SKULBERG, O. M., 1995, In : Journal of the Chemical Society. Chemical communications. p. 1361-1362 2 p.

Research output: Contribution to journalArticleScientificpeer-review

Characterization of procaryotic mRNAs by RT/PCR technique

Ra, R. & Saris, P. E., 1995, In : BioTechniques. 1995 / 18, p. 792 - 795 4 p.

Research output: Contribution to journalArticleScientificpeer-review

CHARACTERIZATION OF TOXIN-PRODUCING CYANOBACTERIA BY USING AN OLIGONUCLEOTIDE PROBE CONTAINING A TANDEMLY REPEATED HEPTAMER

ROUHIAINEN, L., SIVONEN, K., BUIKEMA, W. J. & HASELKORN, R., 1995, In : Journal of Bacteriology. 177, p. 6021-6026 6 p.

Research output: Contribution to journalArticleScientificpeer-review

ISOLATION AND CHARACTERIZATION OF MICROCYSTINS (HEPTAPEPTIDE HEPATOTOXINS) FROM PORTUGUESE STRAINS OF MICROCYSTIS-AERUGINOSA KUTZ EMEND ELEKIN

VASCONCELOS, V. M., SIVONEN, K., EVANS, W. R., CARMICHAEL, W. W. & NAMIKOSHI, M., 1995, In : Archiv für Hydrobiologie. 134, p. 295-305 11 p.

Research output: Contribution to journalArticleScientificpeer-review

The cellular location and effect on nisin immunity of the NisI protein from Lactococcus lactis N8 expressed in Escherichia coli and L. lactis

Qiao, M., Immonen, T., Koponen, O. & Saris, P. E., 1995, In : FEMS Microbiology Letters. 131, p. 75-80 6 p.

Research output: Contribution to journalArticleScientificpeer-review

THE CODON USAGE OF THE NISZ OPERON IN LACTOCOCCUS-LACTIS N8 SUGGESTS A NON-LACTOCOCCAL ORIGIN OF THE CONJUGATIVE NISIN-SUCROSE TRANSPOSON

IMMONEN, T., YE, S., RA, R., QIAO, M., PAULIN, L. & SARIS, P. E. J., 1995, In : DNA Sequence. 5, p. 203-218 16 p.

Research output: Contribution to journalArticleScientificpeer-review

The Manganese Binding Site of Manganese Peroxidase: Characterization of an Asp179Asn Site-Directed Mutant Protein

Kusters-van Someren, M., Kishi, K., Lundell, T. K. & Gold, M., Aug 1995, In : Biochemistry. 34, 33, p. 10620-10627 8 p.

Research output: Contribution to journalArticleScientificpeer-review

The U2-snRNP B´´ protein gene is an early growth-inducible gene

Laitinen, J., Saris, P. E., Hölttä, E. J. & Petterson, I., 1995, In : Journal of Cellular Biochemistry. 1995 / 58, p. 490 - 498 9 p.

Research output: Contribution to journalArticleScientificpeer-review

1994

BIODEGRADABILITY AND ADSORPTION ON LAKE-SEDIMENTS OF CYANOBACTERIAL HEPATOTOXINS AND ANATOXIN-A

RAPALA, J., LAHTI, K., SIVONEN, K. & NIEMELA, S. I., 1994, In : Letters in Applied Microbiology. 19, p. 423-428 6 p.

Research output: Contribution to journalArticleScientificpeer-review

Do carbohydrates play a role in the lignin peroxidase cycle? Redox catalysis in the endergonic region of the driving force

Schoemaker, H. E., Lundell, T., Floris, R., Glumoff, T., Winterhalter, K. H. & Piontek, K., 1994, In : Bioorganic & Medicinal Chemistry. 2, 6, p. 509-519 11 p.

Research output: Contribution to journalArticleScientificpeer-review

ISOLATION AND IDENTIFICATION OF 12 MICROCYSTINS FROM 4 STRAINS AND 2 BLOOM SAMPLES OF MICROCYSTIS SPP - STRUCTURE OF A NEW HEPATOTOXIN

LUUKKAINEN, R., NAMIKOSHI, M., SIVONEN, K., RINEHART, K. L. & NIEMELA, S. I., 1994, In : Toxicon. 32, p. 133-139 7 p.

Research output: Contribution to journalArticleScientificpeer-review

THE EFFECT OF QUINONE-REDUCING AND PHENOL-METHYLATING ENZYMES ON THE YELLOWING OF MECHANICAL PULP

HATAKKA, A., METTALA, A., ROUHIAINEN, L. & VIIKARI, L., 1994, In : Holzforschung : international journal of the biology, chemistry, physics and technology of wood. 48, p. 82-88 7 p.

Research output: Contribution to journalArticleScientificpeer-review

THE EFFECTS OF INCUBATION-TIME, TEMPERATURE, LIGHT, SALINITY, AND PHOSPHORUS ON GROWTH AND HEPATOTOXIN PRODUCTION BY NODULARIA STRAINS

LEHTIMAKI, J., SIVONEN, K., LUUKKAINEN, R. & NIEMELA, S. I., 1994, In : Archiv für Hydrobiologie. 130, p. 269-282 14 p.

Research output: Contribution to journalArticleScientificpeer-review

The oxidation of veratryl alcohol, dimeric lignin models and lignin by lignin peroxidase - The redox cycle revisited.

Schoemaker, H. E., Lundell, T. K., Hatakka, A. I. & Piontek, K., 1994, In : FEMS Microbiology Reviews. 13, p. 321-332 12 p.

Research output: Contribution to journalArticleScientificpeer-review

1993

ALGAE IN MOSQUITO BREEDING SITES AND THE EFFECTIVENESS OF THE MOSQUITO LARVICIDE BACILLUS-THURINGIENSIS H-14

ABDELHAMEED, A., KIVIRANTA, J., SIVONEN, K., NIEMELA, S. & CARLBERG, G., 1993, In : World Journal of Microbiology & Biotechnology. 9, p. 156-159 4 p.

Research output: Contribution to journalArticleScientificpeer-review

ANATOXIN-A CONCENTRATION IN ANABAENA AND APHANIZOMENON UNDER DIFFERENT ENVIRONMENTAL-CONDITIONS AND COMPARISON OF GROWTH BY TOXIC AND NONTOXIC ANABAENA-STRAINS - A LABORATORY STUDY

RAPALA, J., SIVONEN, K., LUUKKAINEN, R. & NIEMELA, S. I., 1993, In : Journal of Applied Phycology. 5, p. 581-591 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Biosynthesis of nisin in the subtilin producer Bacillus subtilis ATCC6633

Rintala, H., Graeffe, T., Paulin, L., Kalkkinen, N. & Saris, P. E., 1993, In : Biotechnology Letters. 1993 / 15, p. 991 - 996 6 p.

Research output: Contribution to journalArticleScientificpeer-review

ISOLATION AND IDENTIFICATION OF 8 MICROCYSTINS FROM 13 OSCILLATORIA-AGARDHII STRAINS AND STRUCTURE OF A NEW MICROCYSTIN

LUUKKAINEN, R., SIVONEN, K., NAMIKOSHI, M., FARDIG, M., RINEHART, K. L. & NIEMELA, S. I., 1993, In : Applied and Environmental Microbiology. 59, p. 2204-2209 6 p.

Research output: Contribution to journalArticleScientificpeer-review

LIQUID-CHROMATOGRAPHY MASS-SPECTROMETRIC DETECTION OF ANATOXIN-A, A NEUROTOXIN FROM CYANOBACTERIA

HARADA, K., NAGAI, H., KIMURA, Y., SUZUKI, M., PARK, H. D., WATANABE, M. F., LUUKKAINEN, R., SIVONEN, K. & CARMICHAEL, W. W., 1993, In : Tetrahedron. 49, p. 9251-9260 10 p.

Research output: Contribution to journalArticleScientificpeer-review

Production of multiple lignin peroxidases by the white-rot fungus Phlebia ochraceofulva

Vares, T., Lundell, T. K. & Hatakka, A. I., 1993, In : Enzyme and microbial technology. 15, 8, p. 664-669 6 p.

Research output: Contribution to journalArticleScientificpeer-review

TOXICITY OF CYANOBACTERIA TO MOSQUITO LARVAE SCREENING OF ACTIVE COMPOUNDS

KIVIRANTA, J., ABDELHAMEED, A., SIVONEN, K., NIEMELA, S. I. & CARLBERG, G., 1993, In : Environmental Toxicology. 8, p. 63-71 9 p.

Research output: Contribution to journalArticleScientificpeer-review

1992

2 METHYL-ESTER DERIVATIVES OF MICROCYSTINS, CYCLIC HEPTAPEPTIDE HEPATOTOXINS, ISOLATED FROM ANABAENA-FLOS-AQUAE STRAIN CYA 83/1

SIVONEN, K., SKULBERG, O. M., NAMIKOSHI, M., EVANS, W. R., CARMICHAEL, W. W. & RINEHART, K. L., 1992, In : Toxicon. 30, p. 1465-1471 7 p.

Research output: Contribution to journalArticleScientificpeer-review

2 NEW L-SERINE VARIANTS OF MICROCYSTINS-LR AND MICROCYSTINS-RR FROM ANABAENA SP STRAINS 202-A1 AND 202-A2

NAMIKOSHI, M., SIVONEN, K., EVANS, W. R., CARMICHAEL, W. W., SUN, F., ROUHIAINEN, L., LUUKKAINEN, R. & RINEHART, K. L., 1992, In : Toxicon. 30, p. 1457-1464 8 p.

Research output: Contribution to journalArticleScientificpeer-review