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

He, Hongzhi; Chen, Feng; Li, Huashou; Xiang, Wenzhou; Li, Yongjun; Jiang, Yue

doi:10.1016/j.hal.2009.08.006

Cited by 27 publications

(26 citation statements)

References 47 publications

(67 reference statements)

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“…Very recently, He et al (2010) studied the effect of Fe limitation on A. tamarense . Growth rate and chlorophyll a content were reduced by half, and protein by a factor of three in Fe-limited cells (1 nM Fe) relative to Fe-replete controls (1 μM Fe).…”

Section: Physiology and Nutritionmentioning

confidence: 99%

The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health

et al. 2012

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The dinoflagellate genus Alexandrium is one of the major harmful algal bloom (HAB) genera with respect to the diversity, magnitude and consequences of blooms. The ability of Alexandrium to colonize multiple habitats and to persist over large regions through time is testimony to the adaptability and resilience of this group of species. Three different families of toxins, as well as an as yet incompletely characterized suite of allelochemicals are produced among Alexandrium species. Nutritional strategies are equally diverse, including the ability to utilize a range of inorganic and organic nutrient sources, and feeding by ingestion of other organisms. Many Alexandrium species have complex life histories that include sexuality and often, but not always, cyst formation, which is characteristic of a meroplanktonic life strategy and offers considerable ecological advantages. Due to the public health and ecosystem impacts of Alexandrium blooms, the genus has been extensively studied, and there exists a broad knowledge base that ranges from taxonomy and phylogeny through genomics and toxin biosynthesis to bloom dynamics and modeling. Here we present a review of the genus Alexandrium, focusing on the major toxic and otherwise harmful species.

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Section: Physiology and Nutritionmentioning

confidence: 99%

The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health

et al. 2012

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“…they showed marked differential effects between spring and summer. these metals serve important metabolic purposes ranging from photosynthetic electron transport, respiratory electron transport, nitrate and nitrite reduction, sulfate reduction, dinitrogen fixation and detoxification of reactive oxygen species (Rueter & ades 1987, Boyd et al 2000, sunda 2001, he et al 2010.…”

Section: Discussionmentioning

confidence: 99%

Green algal interactions with physicochemical parameters of some manmade ponds in Zaria, northern Nigeria

et al. 2011

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-(Green algal interactions with physicochemical parameters of some manmade ponds in Zaria, northern nigeria). Green algal species and their association with physicochemical parameters in some manmade ponds in Zaria, nigeria were studied from november 2005 to august 2006. Phytoplankton and water samples were collected, preserved and analyzed using standard methods. a total of 27 green algal species divided into 16 families were recorded. shannon diversity indices ranged from 1.75 to 2.39 in all ponds, dominance index from 0.14 to 0.23 and species evenness 0.56 to 0.64. Closterium sp. and Rhizoclonium hookeri kuetz. were positively associated with the concentration of Fe, however they were negatively correlated (sensitive) to alkalinity, total dissolved solids and electrical conductivity. Stichococcus bacillaris naegeli, Staurastrum rotula nordst. and Sphaeroplea sp. had significant positive relationship with biochemical oxygen demand (BOD), Mn, and Mo levels in the water. Pseudouvella americana (snow) Wille. and Scenedesmus quadricauda (turp.) de Bréb. showed a close positive association with alkalinity but were sensitive to Fe, Bod, Mn and Mo. the species reported here showed closed association with physicochemical factors in these ponds.key words -Chlorophyta, diversity, ecology, lenthic water bodies, trace metals RESUMO -(Interação de algas verdes com parâmetros físico-químicos em lagoas artificiais em Zaria, Norte da Nigéria). As espécies de algas verdes e sua associação com parâmetros físico-químicos em lagoas artificiais de Zaria, Nigéria foram estudados entre novembro de 2005 e agosto de 2006. As amostras de fitoplâncton e de água foram coletadas, preservadas e analisadas usando métodos padrões. Foram registradas um total de 27 espécies de algas verdes divididas em 16 famílias. os indices de diversidade de shannon variaram de 1,75 a 2,39 em todas as lagoas; índice de dominância de 0,14 a 0,23 e a eqüidade de espécies de 0,56 a 0,64. Closterium sp. e Rhizoclonium hookeri kuetz. foram associados positivamente com a concentração de Fe, porém eles foram correlacionados negativamente (sensíveis) à alcalinidade, condutividade elétrica e sólidos totais dissolvidos. as espécies Stichococcus bacillaris naegeli, Staurastrum rotula nordst. e Sphaeroplea sp. tiveram relação positiva e significativa com a demanda bioquímica de oxigênio, e com os níveis de Mn e Mo na água. Pseudouvella americana (snow) Wille. e Scenedesmus quadricauda (turp.) de Bréb. mostraram estreita associação positiva com a alcalinidade, mas foram sensíveis ao Fe, dBo, Mn e Mo. as espécies relatadas aqui apresentaram associação próxima com fatores físico-químicos nessas lagoas.

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“…El efecto del hierro también fue estudiado en las microalgas dinoflageladas Scrippsiella trochoidea y Alexandrium tamarense, conocidas por formar parte de las mareas rojas observadas en aguas marinas y responsables de daños ecológi-cos y económicos [16], [17]. Mientras que para la microalga Scrippsiella trochoidea se observó un efecto positivo en el crecimiento de la microalga para valores de Fe 3+ entre 0,39 y 3,9 µM y un efecto de saturación por dicho ión entre 3,9 y 39 µM [16], para la microalga Alexandrium tamarense el efecto positivo del hierro fue evidenciado entre 1 nM y 1 µM pero para concentraciones entre 1 y 10 µM la microalga experimentó inhibición [17].…”

Section: Introductionunclassified

“…Mientras que para la microalga Scrippsiella trochoidea se observó un efecto positivo en el crecimiento de la microalga para valores de Fe 3+ entre 0,39 y 3,9 µM y un efecto de saturación por dicho ión entre 3,9 y 39 µM [16], para la microalga Alexandrium tamarense el efecto positivo del hierro fue evidenciado entre 1 nM y 1 µM pero para concentraciones entre 1 y 10 µM la microalga experimentó inhibición [17].…”

Section: Introductionunclassified

Efecto del hierro en el crecimiento y acumulación de lípidos en la microalga colombiana Chlorella Vulgaris LAUN 0019

Bermúdez¹,

Landínez²,

Sáenz³

et al. 2011

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

Cited by 27 publications

References 47 publications

The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health

The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health

Green algal interactions with physicochemical parameters of some manmade ponds in Zaria, northern Nigeria

Efecto del hierro en el crecimiento y acumulación de lípidos en la microalga colombiana Chlorella Vulgaris LAUN 0019

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