CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000316

Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis

Identifieur interne : 000316 ( PascalFrancis/Corpus ); précédent : 000315; suivant : 000317

Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis

Auteurs : A. Hassen ; N. Saidi ; M. Cherif ; A. Boudabous

Source :

Bioresource technology [ 0960-8524 ] ; 1998.

RBID : Pascal:98-0380080

Descripteurs français

Pascal (Inist)
- Pollution chimique, Impact environnement, Pollution sol, Pollution eau, Sorption, Accumulation biologique, Synthèse protéique, Pseudomonas aeruginosa, Bacillus thuringiensis, Métal lourd, Cation minéral, Pigment organique, Citrique acide.

English descriptors

KwdEn :
- Bacillus thuringiensis, Biological accumulation, Chemical pollution, Citric acid, Environment impact, Heavy metal, Inorganic cation, Organic pigment, Protein synthesis, Pseudomonas aeruginosa, Soil pollution, Sorption, Water pollution.

Abstract

The biosorption of the heavy metals most frequently found in polluted environments by Pseudomonas aeruginosa and Bacillus thuringiensis was studied. The effects of these metals on bacterial growth, quantity of dry cells, ammonium assimilation, pigment production, and protein synthesis were investigated. At lower concentrations than the minimal inhibitory concentration (MIC), the metals partially limited bacterial growth and caused an inhibition proportional to the metal concentration applied. The production of bacterial biomass varied according to the nature and concentration of the metals, and to the bacterial strain studied. The biosorption of metals by P. aeruginosa and B. thuringiensis was variable. Mercury and copper appeared to be the elements most adsorbed by bacteria. Citrate noticeably increased the biosorption of chromium by P. aeruginosa (0.07-45.9%) and copper by B. thuringiensis (18.7-33.8%). Metallic cations exerted variable effects on protein synthesis. Zinc stimulated protein synthesis in P. aeruginosa, and cadmium inhibited it significantly in B. thuringiensis. Mercury and cobalt, at concentrations below the MIC, always inhibited the synthesis of pigments in P. aeruginosa. The strong interactions of mercury and copper with organic matter suggest that these undesirable elements might be removed from the environment by bacterial trapping and sequestration. A better understanding of the different forms of metals actually existing in polluted environments (speciation) would be of great interest.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A11	`01`	`1`		`@1 HASSEN (A.)`
A11	`02`	`1`		`@1 SAIDI (N.)`
A11	`03`	`1`		`@1 CHERIF (M.)`
A11	`04`	`1`		`@1 BOUDABOUS (A.)`
A14	`01`			`@1 Institut National de Recherche Scientifique et Technique, URNE-Eau, B.P. 15 @2 1082, Cité Mahrajène @3 TUN @Z 1 aut. @Z 2 aut.`
A14	`02`			`@1 Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle @2 1082 Cité Mahragène @3 TUN @Z 3 aut.`
A14	`03`			`@1 Faculté des Sciences de Tunis, Laboratoire de microbiologie, Campus universitaire @2 1060 Tunis @3 TUN @Z 4 aut.`
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A21				`@1 1998`
A23	`01`			`@0 ENG`
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A44				`@0 0000 @1 © 1998 INIST-CNRS. All rights reserved.`
A45				`@0 27 ref.`
A47	`01`	`1`		`@0 98-0380080`
A60				`@1 P`
A61				`@0 A`
A64		`1`		`@0 Bioresource technology`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 The biosorption of the heavy metals most frequently found in polluted environments by Pseudomonas aeruginosa and Bacillus thuringiensis was studied. The effects of these metals on bacterial growth, quantity of dry cells, ammonium assimilation, pigment production, and protein synthesis were investigated. At lower concentrations than the minimal inhibitory concentration (MIC), the metals partially limited bacterial growth and caused an inhibition proportional to the metal concentration applied. The production of bacterial biomass varied according to the nature and concentration of the metals, and to the bacterial strain studied. The biosorption of metals by P. aeruginosa and B. thuringiensis was variable. Mercury and copper appeared to be the elements most adsorbed by bacteria. Citrate noticeably increased the biosorption of chromium by P. aeruginosa (0.07-45.9%) and copper by B. thuringiensis (18.7-33.8%). Metallic cations exerted variable effects on protein synthesis. Zinc stimulated protein synthesis in P. aeruginosa, and cadmium inhibited it significantly in B. thuringiensis. Mercury and cobalt, at concentrations below the MIC, always inhibited the synthesis of pigments in P. aeruginosa. The strong interactions of mercury and copper with organic matter suggest that these undesirable elements might be removed from the environment by bacterial trapping and sequestration. A better understanding of the different forms of metals actually existing in polluted environments (speciation) would be of great interest.
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C03	`01`	`X`	`ENG`	`@0 Chemical pollution @5 01`
C03	`01`	`X`	`SPA`	`@0 Polución química @5 01`
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C03	`02`	`X`	`SPA`	`@0 Impacto medio ambiente @5 02`
C03	`03`	`X`	`FRE`	`@0 Pollution sol @5 03`
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C03	`03`	`X`	`SPA`	`@0 Polución suelo @5 03`
C03	`04`	`X`	`FRE`	`@0 Pollution eau @5 04`
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C03	`04`	`X`	`GER`	`@0 Wasserverschmutzung @5 04`
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C03	`05`	`X`	`ENG`	`@0 Sorption @5 05`
C03	`05`	`X`	`SPA`	`@0 Sorción @5 05`
C03	`06`	`X`	`FRE`	`@0 Accumulation biologique @5 06`
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C03	`07`	`X`	`FRE`	`@0 Synthèse protéique @5 07`
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C03	`13`	`X`	`FRE`	`@0 Citrique acide @2 NK @5 18`
C03	`13`	`X`	`ENG`	`@0 Citric acid @2 NK @5 18`
C03	`13`	`X`	`SPA`	`@0 Cítrico ácido @2 NK @5 18`
C07	`01`	`X`	`FRE`	`@0 Pseudomonadaceae @2 NS`
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C07	`02`	`X`	`FRE`	`@0 Pseudomonadales @2 NS`
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C07	`03`	`X`	`FRE`	`@0 Bactérie`
C07	`03`	`X`	`ENG`	`@0 Bacteria`
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C07	`05`	`X`	`FRE`	`@0 Bacillales @2 NS`
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N21				`@1 257`

Format Inist (serveur)

NO :	PASCAL 98-0380080 INIST
ET :	Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis
AU :	HASSEN (A.); SAIDI (N.); CHERIF (M.); BOUDABOUS (A.)
AF :	Institut National de Recherche Scientifique et Technique, URNE-Eau, B.P. 15/1082, Cité Mahrajène/Tunisie (1 aut., 2 aut.); Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle/1082 Cité Mahragène/Tunisie (3 aut.); Faculté des Sciences de Tunis, Laboratoire de microbiologie, Campus universitaire/1060 Tunis/Tunisie (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Bioresource technology; ISSN 0960-8524; Royaume-Uni; Da. 1998; Vol. 65; No. 1-2; Pp. 73-82; Bibl. 27 ref.
LA :	Anglais
EA :	The biosorption of the heavy metals most frequently found in polluted environments by Pseudomonas aeruginosa and Bacillus thuringiensis was studied. The effects of these metals on bacterial growth, quantity of dry cells, ammonium assimilation, pigment production, and protein synthesis were investigated. At lower concentrations than the minimal inhibitory concentration (MIC), the metals partially limited bacterial growth and caused an inhibition proportional to the metal concentration applied. The production of bacterial biomass varied according to the nature and concentration of the metals, and to the bacterial strain studied. The biosorption of metals by P. aeruginosa and B. thuringiensis was variable. Mercury and copper appeared to be the elements most adsorbed by bacteria. Citrate noticeably increased the biosorption of chromium by P. aeruginosa (0.07-45.9%) and copper by B. thuringiensis (18.7-33.8%). Metallic cations exerted variable effects on protein synthesis. Zinc stimulated protein synthesis in P. aeruginosa, and cadmium inhibited it significantly in B. thuringiensis. Mercury and cobalt, at concentrations below the MIC, always inhibited the synthesis of pigments in P. aeruginosa. The strong interactions of mercury and copper with organic matter suggest that these undesirable elements might be removed from the environment by bacterial trapping and sequestration. A better understanding of the different forms of metals actually existing in polluted environments (speciation) would be of great interest.
CC :	002A32B06
FD :	Pollution chimique; Impact environnement; Pollution sol; Pollution eau; Sorption; Accumulation biologique; Synthèse protéique; Pseudomonas aeruginosa; Bacillus thuringiensis; Métal lourd; Cation minéral; Pigment organique; Citrique acide
FG :	Pseudomonadaceae; Pseudomonadales; Bactérie; Bacillaceae; Bacillales; Bactérie Gram positif; Bactérie Gram négatif
ED :	Chemical pollution; Environment impact; Soil pollution; Water pollution; Sorption; Biological accumulation; Protein synthesis; Pseudomonas aeruginosa; Bacillus thuringiensis; Heavy metal; Inorganic cation; Organic pigment; Citric acid
EG :	Pseudomonadaceae; Pseudomonadales; Bacteria; Bacillaceae; Bacillales; Gram positive bacteria; Gram negative bacteria
GD :	Wasserverschmutzung; Schwermetall
SD :	Polución química; Impacto medio ambiente; Polución suelo; Contaminación agua; Sorción; Acumulación biológica; Síntesis proteica; Pseudomonas aeruginosa; Bacillus thuringiensis; Metal pesado; Catión inorgánico; Pigmento orgánico; Cítrico ácido
LO :	INIST-18769.354000077119640110
ID :	98-0380080

Links to Exploration step

Pascal:98-0380080

Le document en format XML

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<front><div type="abstract" xml:lang="en">The biosorption of the heavy metals most frequently found in polluted environments by Pseudomonas aeruginosa and Bacillus thuringiensis was studied. The effects of these metals on bacterial growth, quantity of dry cells, ammonium assimilation, pigment production, and protein synthesis were investigated. At lower concentrations than the minimal inhibitory concentration (MIC), the metals partially limited bacterial growth and caused an inhibition proportional to the metal concentration applied. The production of bacterial biomass varied according to the nature and concentration of the metals, and to the bacterial strain studied. The biosorption of metals by P. aeruginosa and B. thuringiensis was variable. Mercury and copper appeared to be the elements most adsorbed by bacteria. Citrate noticeably increased the biosorption of chromium by P. aeruginosa (0.07-45.9%) and copper by B. thuringiensis (18.7-33.8%). Metallic cations exerted variable effects on protein synthesis. Zinc stimulated protein synthesis in P. aeruginosa, and cadmium inhibited it significantly in B. thuringiensis. Mercury and cobalt, at concentrations below the MIC, always inhibited the synthesis of pigments in P. aeruginosa. The strong interactions of mercury and copper with organic matter suggest that these undesirable elements might be removed from the environment by bacterial trapping and sequestration. A better understanding of the different forms of metals actually existing in polluted environments (speciation) would be of great interest.</div>
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<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Pollution sol</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Soil pollution</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Polución suelo</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Pollution eau</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Water pollution</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="GER"><s0>Wasserverschmutzung</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Contaminación agua</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Sorption</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Sorption</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Sorción</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Accumulation biologique</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Biological accumulation</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Acumulación biológica</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Synthèse protéique</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Protein synthesis</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Síntesis proteica</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Pseudomonas aeruginosa</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Pseudomonas aeruginosa</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Pseudomonas aeruginosa</s0>
<s2>NS</s2>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Bacillus thuringiensis</s0>
<s2>NS</s2>
<s5>11</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Bacillus thuringiensis</s0>
<s2>NS</s2>
<s5>11</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Bacillus thuringiensis</s0>
<s2>NS</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Métal lourd</s0>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Heavy metal</s0>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="X" l="GER"><s0>Schwermetall</s0>
<s5>15</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Metal pesado</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Cation minéral</s0>
<s5>16</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Inorganic cation</s0>
<s5>16</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Catión inorgánico</s0>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Pigment organique</s0>
<s5>17</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Organic pigment</s0>
<s5>17</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Pigmento orgánico</s0>
<s5>17</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Citrique acide</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Citric acid</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Cítrico ácido</s0>
<s2>NK</s2>
<s5>18</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Pseudomonadaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Pseudomonadaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Pseudomonadaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Pseudomonadales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Pseudomonadales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Pseudomonadales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Bactérie</s0>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Bacteria</s0>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Bacteria</s0>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Bacillaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Bacillaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Bacillaceae</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="FRE"><s0>Bacillales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="ENG"><s0>Bacillales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="05" i2="X" l="SPA"><s0>Bacillales</s0>
<s2>NS</s2>
</fC07>
<fC07 i1="06" i2="X" l="FRE"><s0>Bactérie Gram positif</s0>
<s5>40</s5>
</fC07>
<fC07 i1="06" i2="X" l="ENG"><s0>Gram positive bacteria</s0>
<s5>40</s5>
</fC07>
<fC07 i1="06" i2="X" l="SPA"><s0>Bacteria Gram positiva</s0>
<s5>40</s5>
</fC07>
<fC07 i1="07" i2="X" l="FRE"><s0>Bactérie Gram négatif</s0>
<s5>41</s5>
</fC07>
<fC07 i1="07" i2="X" l="ENG"><s0>Gram negative bacteria</s0>
<s5>41</s5>
</fC07>
<fC07 i1="07" i2="X" l="SPA"><s0>Bacteria Gram negativa</s0>
<s5>41</s5>
</fC07>
<fN21><s1>257</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 98-0380080 INIST</NO>
<ET>Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis</ET>
<AU>HASSEN (A.); SAIDI (N.); CHERIF (M.); BOUDABOUS (A.)</AU>
<AF>Institut National de Recherche Scientifique et Technique, URNE-Eau, B.P. 15/1082, Cité Mahrajène/Tunisie (1 aut., 2 aut.); Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle/1082 Cité Mahragène/Tunisie (3 aut.); Faculté des Sciences de Tunis, Laboratoire de microbiologie, Campus universitaire/1060 Tunis/Tunisie (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Bioresource technology; ISSN 0960-8524; Royaume-Uni; Da. 1998; Vol. 65; No. 1-2; Pp. 73-82; Bibl. 27 ref.</SO>
<LA>Anglais</LA>
<EA>The biosorption of the heavy metals most frequently found in polluted environments by Pseudomonas aeruginosa and Bacillus thuringiensis was studied. The effects of these metals on bacterial growth, quantity of dry cells, ammonium assimilation, pigment production, and protein synthesis were investigated. At lower concentrations than the minimal inhibitory concentration (MIC), the metals partially limited bacterial growth and caused an inhibition proportional to the metal concentration applied. The production of bacterial biomass varied according to the nature and concentration of the metals, and to the bacterial strain studied. The biosorption of metals by P. aeruginosa and B. thuringiensis was variable. Mercury and copper appeared to be the elements most adsorbed by bacteria. Citrate noticeably increased the biosorption of chromium by P. aeruginosa (0.07-45.9%) and copper by B. thuringiensis (18.7-33.8%). Metallic cations exerted variable effects on protein synthesis. Zinc stimulated protein synthesis in P. aeruginosa, and cadmium inhibited it significantly in B. thuringiensis. Mercury and cobalt, at concentrations below the MIC, always inhibited the synthesis of pigments in P. aeruginosa. The strong interactions of mercury and copper with organic matter suggest that these undesirable elements might be removed from the environment by bacterial trapping and sequestration. A better understanding of the different forms of metals actually existing in polluted environments (speciation) would be of great interest.</EA>
<CC>002A32B06</CC>
<FD>Pollution chimique; Impact environnement; Pollution sol; Pollution eau; Sorption; Accumulation biologique; Synthèse protéique; Pseudomonas aeruginosa; Bacillus thuringiensis; Métal lourd; Cation minéral; Pigment organique; Citrique acide</FD>
<FG>Pseudomonadaceae; Pseudomonadales; Bactérie; Bacillaceae; Bacillales; Bactérie Gram positif; Bactérie Gram négatif</FG>
<ED>Chemical pollution; Environment impact; Soil pollution; Water pollution; Sorption; Biological accumulation; Protein synthesis; Pseudomonas aeruginosa; Bacillus thuringiensis; Heavy metal; Inorganic cation; Organic pigment; Citric acid</ED>
<EG>Pseudomonadaceae; Pseudomonadales; Bacteria; Bacillaceae; Bacillales; Gram positive bacteria; Gram negative bacteria</EG>
<GD>Wasserverschmutzung; Schwermetall</GD>
<SD>Polución química; Impacto medio ambiente; Polución suelo; Contaminación agua; Sorción; Acumulación biológica; Síntesis proteica; Pseudomonas aeruginosa; Bacillus thuringiensis; Metal pesado; Catión inorgánico; Pigmento orgánico; Cítrico ácido</SD>
<LO>INIST-18769.354000077119640110</LO>
<ID>98-0380080</ID>
</server>
</inist>
</record>

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Serveur d'exploration sur le cobalt au Maghreb

Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis

Effects of heavy metals on Pseudomonas aeruginosa and Bacillus thuringiensis

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