An assessment of the microbial contribution to aquatic dissolved organic nitrogen using amino acid enantiomeric ratios

V  Jones; M J  Collins; K E H  Penkman; R  Jaffe; G A  Wolff

doi:10.1016/j.orggeochem.2004.11.008

An assessment of the microbial contribution to aquatic dissolved organic nitrogen using amino acid enantiomeric ratios

V Jones, M J Collins, K E H Penkman, R Jaffe, G A Wolff

Research output: Contribution to journal › Article › peer-review

Abstract

There is increasing evidence that certain microbially-derived compounds may account for part of the aquatic dissolved organic nitrogen (DON) pool. Enantiomeric ratios of amino acids were used to assess the microbial input to the DON pool in the Florida Everglades, USA. Elevated levels Of D-alanine, D-aspartic acid, D-glutamic acid and D-serine indicated the presence of peptidoglycan in the samples. The estimated peptidoglycan contribution to amino acid nitrogen ranged from 2.8 +/- 0.1% to 6.4 +/- 0.9%, increasing with salinity from freshwater to coastal waters. The distribution of individual D-amino acids in the samples suggests additional inputs to DON, possibly from archaea or from abiotic racemization Of L-amino acids. (c) 2005 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	1099-1107
Number of pages	9
Journal	Organic Geochemistry
Volume	36
Issue number	7
DOIs	https://doi.org/10.1016/j.orggeochem.2004.11.008
Publication status	Published - 2005

Keywords

BACTERIAL-CELL WALL
SARGASSO SEA
MATTER
PEPTIDOGLYCAN
ARCHAEA
PROTEIN
OCEAN
RACEMIZATION
SEAWATER
PACIFIC

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10.1016/j.orggeochem.2004.11.008

Cite this

@article{4364865c9bfc411594cc7c8efdfa91b5,

title = "An assessment of the microbial contribution to aquatic dissolved organic nitrogen using amino acid enantiomeric ratios",

abstract = "There is increasing evidence that certain microbially-derived compounds may account for part of the aquatic dissolved organic nitrogen (DON) pool. Enantiomeric ratios of amino acids were used to assess the microbial input to the DON pool in the Florida Everglades, USA. Elevated levels Of D-alanine, D-aspartic acid, D-glutamic acid and D-serine indicated the presence of peptidoglycan in the samples. The estimated peptidoglycan contribution to amino acid nitrogen ranged from 2.8 +/- 0.1% to 6.4 +/- 0.9%, increasing with salinity from freshwater to coastal waters. The distribution of individual D-amino acids in the samples suggests additional inputs to DON, possibly from archaea or from abiotic racemization Of L-amino acids. (c) 2005 Elsevier Ltd. All rights reserved.",

keywords = "BACTERIAL-CELL WALL, SARGASSO SEA, MATTER, PEPTIDOGLYCAN, ARCHAEA, PROTEIN, OCEAN, RACEMIZATION, SEAWATER, PACIFIC",

author = "V Jones and Collins, {M J} and Penkman, {K E H} and R Jaffe and Wolff, {G A}",

year = "2005",

doi = "10.1016/j.orggeochem.2004.11.008",

language = "English",

volume = "36",

pages = "1099--1107",

journal = "Organic Geochemistry",

issn = "0146-6380",

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TY - JOUR

T1 - An assessment of the microbial contribution to aquatic dissolved organic nitrogen using amino acid enantiomeric ratios

AU - Jones, V

AU - Collins, M J

AU - Penkman, K E H

AU - Jaffe, R

AU - Wolff, G A

PY - 2005

Y1 - 2005

N2 - There is increasing evidence that certain microbially-derived compounds may account for part of the aquatic dissolved organic nitrogen (DON) pool. Enantiomeric ratios of amino acids were used to assess the microbial input to the DON pool in the Florida Everglades, USA. Elevated levels Of D-alanine, D-aspartic acid, D-glutamic acid and D-serine indicated the presence of peptidoglycan in the samples. The estimated peptidoglycan contribution to amino acid nitrogen ranged from 2.8 +/- 0.1% to 6.4 +/- 0.9%, increasing with salinity from freshwater to coastal waters. The distribution of individual D-amino acids in the samples suggests additional inputs to DON, possibly from archaea or from abiotic racemization Of L-amino acids. (c) 2005 Elsevier Ltd. All rights reserved.

AB - There is increasing evidence that certain microbially-derived compounds may account for part of the aquatic dissolved organic nitrogen (DON) pool. Enantiomeric ratios of amino acids were used to assess the microbial input to the DON pool in the Florida Everglades, USA. Elevated levels Of D-alanine, D-aspartic acid, D-glutamic acid and D-serine indicated the presence of peptidoglycan in the samples. The estimated peptidoglycan contribution to amino acid nitrogen ranged from 2.8 +/- 0.1% to 6.4 +/- 0.9%, increasing with salinity from freshwater to coastal waters. The distribution of individual D-amino acids in the samples suggests additional inputs to DON, possibly from archaea or from abiotic racemization Of L-amino acids. (c) 2005 Elsevier Ltd. All rights reserved.

KW - BACTERIAL-CELL WALL

KW - SARGASSO SEA

KW - MATTER

KW - PEPTIDOGLYCAN

KW - ARCHAEA

KW - PROTEIN

KW - OCEAN

KW - RACEMIZATION

KW - SEAWATER

KW - PACIFIC

U2 - 10.1016/j.orggeochem.2004.11.008

DO - 10.1016/j.orggeochem.2004.11.008

M3 - Article

SN - 0146-6380

VL - 36

SP - 1099

EP - 1107

JO - Organic Geochemistry

JF - Organic Geochemistry

IS - 7

ER -