DIVERSITY AND MORPHOLOGY OF <i>SKELETONEMA</i> SPECIES IN SOUTHERN BRAZIL, SOUTHWESTERN ATLANTIC OCEAN<sup>1</sup>

Bergesch, Marli; Garcia, Marinês; Odebrecht, Clarisse

doi:10.1111/j.1529-8817.2009.00743.x

Cited by 31 publications

(9 citation statements)

References 13 publications

(32 reference statements)

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“…Various species have been reported to occur in coastal waters, for example, in China, Korea, Russia, Brazil, and Uruguay (Bergesch et al . ; Gonzalez–Piana & Ferrari ; Jung et al . ; Torgan et al .…”

Section: Introductionmentioning

confidence: 99%

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

Yamada

Otsubo

Tsutsumi

et al. 2017

Phycological Research

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SUMMARY Small subunit (SSU) and large subunit (LSU) rDNA sequences have been commonly used to delineate the taxonomy and biogeography of the planktonic diatom genus Skeletonema, but the genes occur as multiple copies and are therefore not suitable for barcoding purposes. Here, we analyzed phylogenetic relationships of Skeletonema using the mitochondrial‐encoded cytochrome c oxidase I gene (cox1), as well as partial LSU rDNA (D1–D3) and SSU rDNA, to identify the factors that define species and to evaluate the utility of these three markers for this taxon. Twelve Skeletonema species were divided into six clades, I–VI, each of which comprised the same species by the three markers: clades I (S. japonicum, S. grethae, S. pseudocostatum, and S. tropicum), II (S. menzelii), III (S. dohrnii and S. marinoi), IV (S. costatum, S. potamos, and S. subsalsum), V (S. grevillei), and VI (S. ardens). However, the branching order among these clades was incongruent among the markers. In clade III, six S. marinoi strains had identical cox1 sequences. These S. marinoi strains branched along with S. dohrnii, except for strains from the Gulf of Naples, with high support in cox1. Species delimitation between S. dohrnii and S. marinoi was therefore not supported. In clade IV, S. costatum and S. subsalsum were robustly clustered, with S. potamos as a sister clade in the cox1 tree, not in the LSU and SSU trees. In clade II, cox1 also confirmed that S. menzelii includes three subclades potentially distinguishable from each other by morphological features. Cox1 proved to be the most useful marker for the identification of Skeletonema species because it gave a tree with highly supported clades, has sufficient variation within and among species, encodes a protein in a single copy, and requires relatively few primers.

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Section: Introductionmentioning

confidence: 99%

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

Yamada

Otsubo

Tsutsumi

et al. 2017

Phycological Research

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“…S. tropicum showed the highest cell number and growth rate in the summer experiment (SiNP μ =0.74; NP μ =0.56). S. tropicum is a warm-water species (Hasle and Syvertsen, 1996) that can be found during the summer at Cassino Beach and the adjacent Patos Lagoon in southern Brazil (Bergesch et al, 2009) and in other locations (e.g., Dokai Bay, Japan) (Kaeriyama et al, 2011). Hulburt and Guillard (1968) concluded that S. tropicum would not be found in areas where the winter seawater temperature decreases to less than 15°C.…”

Section: Discussionmentioning

confidence: 98%

The response of surf-zone phytoplankton to nutrient enrichment (Cassino Beach, Brazil)

Piedras

Odebrecht

2012

Journal of Experimental Marine Biology and Ecology

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“…This is an agreement a previous study indicating that Skeletonema sp. grow well under wide salinity conditions in the natural environment 34,56,57 . However, C. didymus showed As biotransformation under salinities between 10–30‰, whereas below 5‰ and above 35‰, the redox reaction, as well as methylation, was absent.…”

Section: Resultsmentioning

confidence: 99%

Arsenic biotransformation potential of six marine diatom species: effect of temperature and salinity

Papry

Ishii

Mamun

et al. 2019

Sci Rep

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Temperature and salinity effects on marine diatom species growth has been studied extensively; however, their effect on arsenic (As) biotransformation has been imprecise. This study reports the growth, and As biotransformation and speciation patterns at various temperatures and salinities of six marine diatom species: Asteroplanus karianus , Thalassionema nitzschioides , Nitzschia longissima , Skeletonema sp., Ditylum brightwellii , and Chaetoceros didymus . The growth rate and As biotransformation potentials of these species during three weeks of culture in f/2 based medium were significantly affected by wide temperature (0–35 °C) and salinity (0.3–50‰) ranges. Growth and As biotransformation were higher at optimum temperatures of 10–25 °C, and salinity of 10–35‰, whereas growth and arsenic biotransformation were lower at <5 °C and 5‰ and >25 °C and 35‰, respectively. The results showed that As(V) to As(III) biotransformation differed significantly ( p < 0.05) between day 10 and 17. At optimum temperature and salinity levels, the cell size and As biotransformation were higher for all the species. A conceptual model on temperature and salinity effects on growth and As uptake and biotransformation mechanisms by these species has been proposed based on the findings of this study.

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DIVERSITY AND MORPHOLOGY OF SKELETONEMA SPECIES IN SOUTHERN BRAZIL, SOUTHWESTERN ATLANTIC OCEAN¹

Cited by 31 publications

References 13 publications

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

The response of surf-zone phytoplankton to nutrient enrichment (Cassino Beach, Brazil)

Arsenic biotransformation potential of six marine diatom species: effect of temperature and salinity

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DIVERSITY AND MORPHOLOGY OF SKELETONEMA SPECIES IN SOUTHERN BRAZIL, SOUTHWESTERN ATLANTIC OCEAN1

Cited by 31 publications

References 13 publications

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

Utility of mitochondrial‐encoded cytochrome c oxidase I gene for phylogenetic analysis and species identification of the planktonic diatom genus Skeletonema

The response of surf-zone phytoplankton to nutrient enrichment (Cassino Beach, Brazil)

Arsenic biotransformation potential of six marine diatom species: effect of temperature and salinity

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DIVERSITY AND MORPHOLOGY OF SKELETONEMA SPECIES IN SOUTHERN BRAZIL, SOUTHWESTERN ATLANTIC OCEAN¹