Re-appraisal of the nature of the pigment produced by Aeromonas salmonicida

John Donlon; Seán McGettigan; Paul O'Brien; Pádraig ÓCarra

doi:10.1111/j.1574-6968.1983.tb00558.x

Re-appraisal of the nature of the pigment produced by Aeromonas salmonicida

John Donlon
, Seán McGettigan
, Paul O'Brien
, Pádraig ÓCarra

Molecular Biosciences

University of Galway

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

12 Citations (Scopus)

Abstract

Aeromonas salmonicida grown aerobically in the presence of tyrosine produces a dark-brown pigment, previously considered to be of a melanin type. However, this pigment is very water-soluble in contrast to melanin's solubility. In addition, no evidence for the presence of key early reactions and intermediates of the melanogensis pathway has been obtained. Radioisotopic labelling experiments, spectral data and chromatographic analyses support the conclusion that pigment biosynthesis, from tyrosine by Aeromonas salmonicida differs substantially from that of melanogenesis, and strongly suggest that the first intermediate is 2,4-dihydroxyphenylalanine and not 3,4-dihydroxyphenylalanine.

Original language	English
Pages (from-to)	285-290
Number of pages	6
Journal	FEMS Microbiology Letters
Volume	19
Issue number	2-3
DOIs	https://doi.org/10.1111/j.1574-6968.1983.tb00558.x
Publication status	Published - 1983

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10.1111/j.1574-6968.1983.tb00558.x

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title = "Re-appraisal of the nature of the pigment produced by Aeromonas salmonicida",

abstract = "Aeromonas salmonicida grown aerobically in the presence of tyrosine produces a dark-brown pigment, previously considered to be of a melanin type. However, this pigment is very water-soluble in contrast to melanin's solubility. In addition, no evidence for the presence of key early reactions and intermediates of the melanogensis pathway has been obtained. Radioisotopic labelling experiments, spectral data and chromatographic analyses support the conclusion that pigment biosynthesis, from tyrosine by Aeromonas salmonicida differs substantially from that of melanogenesis, and strongly suggest that the first intermediate is 2,4-dihydroxyphenylalanine and not 3,4-dihydroxyphenylalanine.",

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T1 - Re-appraisal of the nature of the pigment produced by Aeromonas salmonicida

AU - Donlon, John

AU - McGettigan, Seán

AU - O'Brien, Paul

AU - ÓCarra, Pádraig

PY - 1983

Y1 - 1983

N2 - Aeromonas salmonicida grown aerobically in the presence of tyrosine produces a dark-brown pigment, previously considered to be of a melanin type. However, this pigment is very water-soluble in contrast to melanin's solubility. In addition, no evidence for the presence of key early reactions and intermediates of the melanogensis pathway has been obtained. Radioisotopic labelling experiments, spectral data and chromatographic analyses support the conclusion that pigment biosynthesis, from tyrosine by Aeromonas salmonicida differs substantially from that of melanogenesis, and strongly suggest that the first intermediate is 2,4-dihydroxyphenylalanine and not 3,4-dihydroxyphenylalanine.

AB - Aeromonas salmonicida grown aerobically in the presence of tyrosine produces a dark-brown pigment, previously considered to be of a melanin type. However, this pigment is very water-soluble in contrast to melanin's solubility. In addition, no evidence for the presence of key early reactions and intermediates of the melanogensis pathway has been obtained. Radioisotopic labelling experiments, spectral data and chromatographic analyses support the conclusion that pigment biosynthesis, from tyrosine by Aeromonas salmonicida differs substantially from that of melanogenesis, and strongly suggest that the first intermediate is 2,4-dihydroxyphenylalanine and not 3,4-dihydroxyphenylalanine.

UR - https://www.scopus.com/pages/publications/0037623247

U2 - 10.1111/j.1574-6968.1983.tb00558.x

DO - 10.1111/j.1574-6968.1983.tb00558.x

M3 - Article

AN - SCOPUS:0037623247

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VL - 19

SP - 285

EP - 290

JO - FEMS Microbiology Letters

JF - FEMS Microbiology Letters

IS - 2-3

ER -

Re-appraisal of the nature of the pigment produced by Aeromonas salmonicida

Abstract

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