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Article: Effect of iron on growth, biochemical composition and paralytic shellfish poisoning toxins production of Alexandrium tamarense

TitleEffect of iron on growth, biochemical composition and paralytic shellfish poisoning toxins production of Alexandrium tamarense
Authors
KeywordsAlexandrium Tamarense
Iron (Fe)
Paralytic Shellfish Poisoning (Psp)
Issue Date2010
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/hal
Citation
Harmful Algae, 2010, v. 9 n. 1, p. 98-104 How to Cite?
AbstractEffects of iron (Fe) on growth, biochemical composition and paralytic shellfish poisoning (PSP) toxins production of Alexandrium tamarense were studied. Under Fe-limited conditions (1 nmol L -1 Fe), the alga exhibited a low specific growth rate (0.076 ± 0.017 d -1, n = 3) that was nearly a half of that under Fe-replete conditions (1 μmol L -1 Fe, 0.137 ± 0.00752 d -1, n = 4), and the cell density on day 21 (8210 cells mL -1) was also less than a half of that under Fe-replete conditions (2 × 10 4 cells mL -1). At the same time, total pigment, chlorophyll a (Chla), protein, carbohydrate contents per cell and Chla/carotenoid ratio decreased. In contrast, the PSP toxins content and the PSP toxicity per cell of the alga increased remarkably. Under Fe-limited conditions, total PSP toxins content and relative toxicity of alga were 2.55- and 2.54-fold of those under Fe-replete conditions, respectively. In addition, the profiles of PSP toxins also changed notably. The cellular content of gonyautoxin 1 + 4 (GTX1 + 4) increased for 5.6-fold along with the decrease of saxitoxin (STX) and gonyautoxin 2 + 3 (GTX2 + 3) contents contrasting to that under Fe-replete conditions. It suggested that the availability of Fe might effectively control the growth and toxic production of the alga and thereby influence the toxic effect of these harmful bloom events. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/179167
ISSN
2015 Impact Factor: 2.664
2015 SCImago Journal Rankings: 1.644
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHe, Hen_US
dc.contributor.authorChen, Fen_US
dc.contributor.authorLi, Hen_US
dc.contributor.authorXiang, Wen_US
dc.contributor.authorLi, Yen_US
dc.contributor.authorJiang, Yen_US
dc.date.accessioned2012-12-19T09:52:30Z-
dc.date.available2012-12-19T09:52:30Z-
dc.date.issued2010en_US
dc.identifier.citationHarmful Algae, 2010, v. 9 n. 1, p. 98-104en_US
dc.identifier.issn1568-9883en_US
dc.identifier.urihttp://hdl.handle.net/10722/179167-
dc.description.abstractEffects of iron (Fe) on growth, biochemical composition and paralytic shellfish poisoning (PSP) toxins production of Alexandrium tamarense were studied. Under Fe-limited conditions (1 nmol L -1 Fe), the alga exhibited a low specific growth rate (0.076 ± 0.017 d -1, n = 3) that was nearly a half of that under Fe-replete conditions (1 μmol L -1 Fe, 0.137 ± 0.00752 d -1, n = 4), and the cell density on day 21 (8210 cells mL -1) was also less than a half of that under Fe-replete conditions (2 × 10 4 cells mL -1). At the same time, total pigment, chlorophyll a (Chla), protein, carbohydrate contents per cell and Chla/carotenoid ratio decreased. In contrast, the PSP toxins content and the PSP toxicity per cell of the alga increased remarkably. Under Fe-limited conditions, total PSP toxins content and relative toxicity of alga were 2.55- and 2.54-fold of those under Fe-replete conditions, respectively. In addition, the profiles of PSP toxins also changed notably. The cellular content of gonyautoxin 1 + 4 (GTX1 + 4) increased for 5.6-fold along with the decrease of saxitoxin (STX) and gonyautoxin 2 + 3 (GTX2 + 3) contents contrasting to that under Fe-replete conditions. It suggested that the availability of Fe might effectively control the growth and toxic production of the alga and thereby influence the toxic effect of these harmful bloom events. © 2009 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/halen_US
dc.relation.ispartofHarmful Algaeen_US
dc.subjectAlexandrium Tamarenseen_US
dc.subjectIron (Fe)en_US
dc.subjectParalytic Shellfish Poisoning (Psp)en_US
dc.titleEffect of iron on growth, biochemical composition and paralytic shellfish poisoning toxins production of Alexandrium tamarenseen_US
dc.typeArticleen_US
dc.identifier.emailChen, F: sfchen@hku.hken_US
dc.identifier.authorityChen, F=rp00672en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.hal.2009.08.006en_US
dc.identifier.scopuseid_2-s2.0-70449715168en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70449715168&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume9en_US
dc.identifier.issue1en_US
dc.identifier.spage98en_US
dc.identifier.epage104en_US
dc.identifier.isiWOS:000272602500012-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridHe, H=55214936100en_US
dc.identifier.scopusauthoridChen, F=7404907980en_US
dc.identifier.scopusauthoridLi, H=11639817500en_US
dc.identifier.scopusauthoridXiang, W=24780158300en_US
dc.identifier.scopusauthoridLi, Y=35203363800en_US
dc.identifier.scopusauthoridJiang, Y=24605346600en_US
dc.identifier.citeulike5672878-

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