First and second line mechanisms of cadmium detoxification in the lichen photobiont Trebouxia impressa (Chlorophyta)
“First line” defence mechanisms, such as phytochelatin biosynthesis, and “second line” mechanisms, such as stress protein induction, were investigated in cadmium-exposed cells of Trebouxia impressa Ahmadjian, a green microalgal species that is a common photobiont of the lichen Physcia adscendens (Fr...
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| Veröffentlicht in: | Environmental pollution (1987) 2008, Vol.151 (2), p.280-286 |
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| creator | Sanità di Toppi, L. Pawlik-Skowrońska, B. Vurro, E. Vattuone, Z. Kalinowska, R. Restivo, F.M. Musetti, R. Skowroński, T. |
| description | “First line” defence mechanisms, such as phytochelatin biosynthesis, and “second line” mechanisms, such as stress protein induction, were investigated in cadmium-exposed cells of
Trebouxia impressa Ahmadjian, a green microalgal species that is a common photobiont of the lichen
Physcia adscendens (Fr.) H. Olivier. When
T. impressa cells were exposed to 0, 9 and 18
μM Cd for 6, 18 and 48
h, glutathione and phytochelatins efficiently protected the cells against Cd damage. By contrast, the highest Cd concentration (36
μM) at the longest exposure-time (48
h) caused marked drops in glutathione and phytochelatin content, several types of ultrastructural damage, and decreases in cell density and total chlorophyll concentration. In this case, induction of stress proteins was observed, but only long after the induction of phytochelatins. Thus, stress proteins could represent a “second line” mechanism to counteract Cd stress, activated when there is a decline in the “first line” mechanism of Cd detoxification given by phytochelatins.
Trebouxia impressa photobionts protect themselves against cadmium stress by means of phytochelatins and stress proteins. |
| doi_str_mv | 10.1016/j.envpol.2007.06.010 |
| format | Article |
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Trebouxia impressa Ahmadjian, a green microalgal species that is a common photobiont of the lichen
Physcia adscendens (Fr.) H. Olivier. When
T. impressa cells were exposed to 0, 9 and 18
μM Cd for 6, 18 and 48
h, glutathione and phytochelatins efficiently protected the cells against Cd damage. By contrast, the highest Cd concentration (36
μM) at the longest exposure-time (48
h) caused marked drops in glutathione and phytochelatin content, several types of ultrastructural damage, and decreases in cell density and total chlorophyll concentration. In this case, induction of stress proteins was observed, but only long after the induction of phytochelatins. Thus, stress proteins could represent a “second line” mechanism to counteract Cd stress, activated when there is a decline in the “first line” mechanism of Cd detoxification given by phytochelatins.
Trebouxia impressa photobionts protect themselves against cadmium stress by means of phytochelatins and stress proteins.</description><identifier>ISSN: 0269-7491</identifier><identifier>EISSN: 1873-6424</identifier><identifier>DOI: 10.1016/j.envpol.2007.06.010</identifier><identifier>PMID: 17658203</identifier><identifier>CODEN: ENVPAF</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Animal, plant and microbial ecology ; Antioxidants - metabolism ; Applied ecology ; biochemical mechanisms ; Biological and medical sciences ; biological resistance ; Cadmium ; Cadmium - pharmacokinetics ; cell culture ; chlorophyll ; Chlorophyta - chemistry ; Chlorophyta - metabolism ; Chlorophyta - ultrastructure ; Ecotoxicology, biological effects of pollution ; Environmental Pollutants - pharmacokinetics ; Fundamental and applied biological sciences. Psychology ; General aspects ; glutathione ; Glutathione - analysis ; Glutathione - metabolism ; Heat-Shock Proteins - metabolism ; heavy metals ; Inactivation, Metabolic ; Lichenes ; Lichens ; Lichens - metabolism ; metabolic detoxification ; metal tolerance ; microalgae ; Microscopy, Electron, Transmission ; Oxidative Stress ; photobionts ; Physcia adscendens ; Phytochelatins ; Phytochelatins - metabolism ; Plant cytology, morphology, systematics, chorology and evolution ; plant proteins ; plant stress ; protective effect ; Stress proteins ; symbionts ; symbiosis ; synergism ; synergists ; Thallophyta ; Time ; toxic substances ; transmission electron microscopy ; Trebouxia ; Trebouxia impressa</subject><ispartof>Environmental pollution (1987), 2008, Vol.151 (2), p.280-286</ispartof><rights>2007 Elsevier Ltd</rights><rights>2008 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c476t-17b1c3fa0af0958ac53af46b0fd0b4ab322b69858eb0d83d73b190774eedbd4e3</citedby><cites>FETCH-LOGICAL-c476t-17b1c3fa0af0958ac53af46b0fd0b4ab322b69858eb0d83d73b190774eedbd4e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.envpol.2007.06.010$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,3550,4024,4050,4051,23930,23931,25140,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20301794$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17658203$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sanità di Toppi, L.</creatorcontrib><creatorcontrib>Pawlik-Skowrońska, B.</creatorcontrib><creatorcontrib>Vurro, E.</creatorcontrib><creatorcontrib>Vattuone, Z.</creatorcontrib><creatorcontrib>Kalinowska, R.</creatorcontrib><creatorcontrib>Restivo, F.M.</creatorcontrib><creatorcontrib>Musetti, R.</creatorcontrib><creatorcontrib>Skowroński, T.</creatorcontrib><title>First and second line mechanisms of cadmium detoxification in the lichen photobiont Trebouxia impressa (Chlorophyta)</title><title>Environmental pollution (1987)</title><addtitle>Environ Pollut</addtitle><description>“First line” defence mechanisms, such as phytochelatin biosynthesis, and “second line” mechanisms, such as stress protein induction, were investigated in cadmium-exposed cells of
Trebouxia impressa Ahmadjian, a green microalgal species that is a common photobiont of the lichen
Physcia adscendens (Fr.) H. Olivier. When
T. impressa cells were exposed to 0, 9 and 18
μM Cd for 6, 18 and 48
h, glutathione and phytochelatins efficiently protected the cells against Cd damage. By contrast, the highest Cd concentration (36
μM) at the longest exposure-time (48
h) caused marked drops in glutathione and phytochelatin content, several types of ultrastructural damage, and decreases in cell density and total chlorophyll concentration. In this case, induction of stress proteins was observed, but only long after the induction of phytochelatins. Thus, stress proteins could represent a “second line” mechanism to counteract Cd stress, activated when there is a decline in the “first line” mechanism of Cd detoxification given by phytochelatins.
Trebouxia impressa photobionts protect themselves against cadmium stress by means of phytochelatins and stress proteins.</description><subject>Animal, plant and microbial ecology</subject><subject>Antioxidants - metabolism</subject><subject>Applied ecology</subject><subject>biochemical mechanisms</subject><subject>Biological and medical sciences</subject><subject>biological resistance</subject><subject>Cadmium</subject><subject>Cadmium - pharmacokinetics</subject><subject>cell culture</subject><subject>chlorophyll</subject><subject>Chlorophyta - chemistry</subject><subject>Chlorophyta - metabolism</subject><subject>Chlorophyta - ultrastructure</subject><subject>Ecotoxicology, biological effects of pollution</subject><subject>Environmental Pollutants - pharmacokinetics</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General aspects</subject><subject>glutathione</subject><subject>Glutathione - analysis</subject><subject>Glutathione - metabolism</subject><subject>Heat-Shock Proteins - metabolism</subject><subject>heavy metals</subject><subject>Inactivation, Metabolic</subject><subject>Lichenes</subject><subject>Lichens</subject><subject>Lichens - metabolism</subject><subject>metabolic detoxification</subject><subject>metal tolerance</subject><subject>microalgae</subject><subject>Microscopy, Electron, Transmission</subject><subject>Oxidative Stress</subject><subject>photobionts</subject><subject>Physcia adscendens</subject><subject>Phytochelatins</subject><subject>Phytochelatins - metabolism</subject><subject>Plant cytology, morphology, systematics, chorology and evolution</subject><subject>plant proteins</subject><subject>plant stress</subject><subject>protective effect</subject><subject>Stress proteins</subject><subject>symbionts</subject><subject>symbiosis</subject><subject>synergism</subject><subject>synergists</subject><subject>Thallophyta</subject><subject>Time</subject><subject>toxic substances</subject><subject>transmission electron microscopy</subject><subject>Trebouxia</subject><subject>Trebouxia impressa</subject><issn>0269-7491</issn><issn>1873-6424</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0c-L1DAUB_Aiijuu_geiuSh6mPGlSZP2IsjgqrDgwd1zyI9Xm6FtapIuu_-9GWbQm54ehM_38ci3ql5S2FGg4sNhh_PdEsZdDSB3IHZA4VG1oa1kW8Fr_rjaQC26reQdvaiepXQAAM4Ye1pdUCmatga2qfKVjykTPTuS0IYyRj8jmdAOevZpSiT0xGo3-XUiDnO49723OvswEz-TPGAJ2AFnsgwhB1PeM7mJaMJ67zXx0xIxJU3e7YcxxLAMD1m_f1496fWY8MV5Xla3V59v9l-319-_fNt_ut5aLkXeUmmoZb0G3UPXtNo2TPdcGOgdGK4Nq2sjurZp0YBrmZPM0A6k5IjOOI7ssnp72rvE8GvFlNXkk8Vx1DOGNSnaNbJpqfg_5G1TU9YWyE_QxpBSxF4t0U86PigK6liLOqhTLepYiwKhSi0l9uq8fzUTur-hcw8FvDkDnawe-6hn69MfVwhQ2fHiXp9cr4PSP2Mxtz9qoAygFXXXHS_8eBJYPvbOY1TJepwtOh_RZuWC__etvwGURbiU</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>Sanità di Toppi, L.</creator><creator>Pawlik-Skowrońska, B.</creator><creator>Vurro, E.</creator><creator>Vattuone, Z.</creator><creator>Kalinowska, R.</creator><creator>Restivo, F.M.</creator><creator>Musetti, R.</creator><creator>Skowroński, T.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7TV</scope><scope>7U7</scope><scope>M7N</scope></search><sort><creationdate>2008</creationdate><title>First and second line mechanisms of cadmium detoxification in the lichen photobiont Trebouxia impressa (Chlorophyta)</title><author>Sanità di Toppi, L. ; Pawlik-Skowrońska, B. ; Vurro, E. ; Vattuone, Z. ; Kalinowska, R. ; Restivo, F.M. ; Musetti, R. ; Skowroński, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c476t-17b1c3fa0af0958ac53af46b0fd0b4ab322b69858eb0d83d73b190774eedbd4e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Animal, plant and microbial ecology</topic><topic>Antioxidants - metabolism</topic><topic>Applied ecology</topic><topic>biochemical mechanisms</topic><topic>Biological and medical sciences</topic><topic>biological resistance</topic><topic>Cadmium</topic><topic>Cadmium - pharmacokinetics</topic><topic>cell culture</topic><topic>chlorophyll</topic><topic>Chlorophyta - chemistry</topic><topic>Chlorophyta - metabolism</topic><topic>Chlorophyta - ultrastructure</topic><topic>Ecotoxicology, biological effects of pollution</topic><topic>Environmental Pollutants - pharmacokinetics</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General aspects</topic><topic>glutathione</topic><topic>Glutathione - analysis</topic><topic>Glutathione - metabolism</topic><topic>Heat-Shock Proteins - metabolism</topic><topic>heavy metals</topic><topic>Inactivation, Metabolic</topic><topic>Lichenes</topic><topic>Lichens</topic><topic>Lichens - metabolism</topic><topic>metabolic detoxification</topic><topic>metal tolerance</topic><topic>microalgae</topic><topic>Microscopy, Electron, Transmission</topic><topic>Oxidative Stress</topic><topic>photobionts</topic><topic>Physcia adscendens</topic><topic>Phytochelatins</topic><topic>Phytochelatins - metabolism</topic><topic>Plant cytology, morphology, systematics, chorology and evolution</topic><topic>plant proteins</topic><topic>plant stress</topic><topic>protective effect</topic><topic>Stress proteins</topic><topic>symbionts</topic><topic>symbiosis</topic><topic>synergism</topic><topic>synergists</topic><topic>Thallophyta</topic><topic>Time</topic><topic>toxic substances</topic><topic>transmission electron microscopy</topic><topic>Trebouxia</topic><topic>Trebouxia impressa</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sanità di Toppi, L.</creatorcontrib><creatorcontrib>Pawlik-Skowrońska, B.</creatorcontrib><creatorcontrib>Vurro, E.</creatorcontrib><creatorcontrib>Vattuone, Z.</creatorcontrib><creatorcontrib>Kalinowska, R.</creatorcontrib><creatorcontrib>Restivo, F.M.</creatorcontrib><creatorcontrib>Musetti, R.</creatorcontrib><creatorcontrib>Skowroński, T.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><jtitle>Environmental pollution (1987)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sanità di Toppi, L.</au><au>Pawlik-Skowrońska, B.</au><au>Vurro, E.</au><au>Vattuone, Z.</au><au>Kalinowska, R.</au><au>Restivo, F.M.</au><au>Musetti, R.</au><au>Skowroński, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>First and second line mechanisms of cadmium detoxification in the lichen photobiont Trebouxia impressa (Chlorophyta)</atitle><jtitle>Environmental pollution (1987)</jtitle><addtitle>Environ Pollut</addtitle><date>2008</date><risdate>2008</risdate><volume>151</volume><issue>2</issue><spage>280</spage><epage>286</epage><pages>280-286</pages><issn>0269-7491</issn><eissn>1873-6424</eissn><coden>ENVPAF</coden><abstract>“First line” defence mechanisms, such as phytochelatin biosynthesis, and “second line” mechanisms, such as stress protein induction, were investigated in cadmium-exposed cells of
Trebouxia impressa Ahmadjian, a green microalgal species that is a common photobiont of the lichen
Physcia adscendens (Fr.) H. Olivier. When
T. impressa cells were exposed to 0, 9 and 18
μM Cd for 6, 18 and 48
h, glutathione and phytochelatins efficiently protected the cells against Cd damage. By contrast, the highest Cd concentration (36
μM) at the longest exposure-time (48
h) caused marked drops in glutathione and phytochelatin content, several types of ultrastructural damage, and decreases in cell density and total chlorophyll concentration. In this case, induction of stress proteins was observed, but only long after the induction of phytochelatins. Thus, stress proteins could represent a “second line” mechanism to counteract Cd stress, activated when there is a decline in the “first line” mechanism of Cd detoxification given by phytochelatins.
Trebouxia impressa photobionts protect themselves against cadmium stress by means of phytochelatins and stress proteins.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>17658203</pmid><doi>10.1016/j.envpol.2007.06.010</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0269-7491 |
| ispartof | Environmental pollution (1987), 2008, Vol.151 (2), p.280-286 |
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| subjects | Animal, plant and microbial ecology Antioxidants - metabolism Applied ecology biochemical mechanisms Biological and medical sciences biological resistance Cadmium Cadmium - pharmacokinetics cell culture chlorophyll Chlorophyta - chemistry Chlorophyta - metabolism Chlorophyta - ultrastructure Ecotoxicology, biological effects of pollution Environmental Pollutants - pharmacokinetics Fundamental and applied biological sciences. Psychology General aspects glutathione Glutathione - analysis Glutathione - metabolism Heat-Shock Proteins - metabolism heavy metals Inactivation, Metabolic Lichenes Lichens Lichens - metabolism metabolic detoxification metal tolerance microalgae Microscopy, Electron, Transmission Oxidative Stress photobionts Physcia adscendens Phytochelatins Phytochelatins - metabolism Plant cytology, morphology, systematics, chorology and evolution plant proteins plant stress protective effect Stress proteins symbionts symbiosis synergism synergists Thallophyta Time toxic substances transmission electron microscopy Trebouxia Trebouxia impressa |
| title | First and second line mechanisms of cadmium detoxification in the lichen photobiont Trebouxia impressa (Chlorophyta) |
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