A Re-investigation of Sarcinochrysis marina (Sarcinochrysidales, Pelagophyceae) from its Type Locality and the Descriptions of Arachnochrysis , Pelagospilus, Sargassococcus and Sungminbooa genera nov.

Han, Kwi Young; Graf, Louis; Reyes, Carolina; Melkonian, Barbara; Andersen, Robert A.; Yoon, Hwan Su; Melkonian, Michael

doi:10.1016/j.protis.2017.12.004

Cited by 18 publications

(37 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent phylogenies for pelagophytes have used six genes: the nuclear 18S rRNA, and the plastid genes psa A, psa B, psb A, psb C, and rbc L (Han et al. 2018). To obtain these plastid genes, the Illumina data were assembled (Marcelino et al.…”

Section: Methodsmentioning

confidence: 99%

“…Recently, Sarcinochrysis marina was re‐collected from the type locality and DNA sequences definitively proved that the Sarcinochrysidales belonged within the Pelagophyceae (Han et al. 2018).…”

mentioning

confidence: 99%

“…Currently, the Pelagophyceae contains 14 known genera, while additional taxa may well be included once several suspect species have been isolated and DNA sequences obtained (for summary see Han et al. 2018).…”

mentioning

confidence: 99%

“…1997), whereas the attached species are predominantly capsoid organisms with vegetative cell division ( Arachnochrysis , Chrysocystis, Chrysoreinhardia, Pelagospilus , Sarcinochrysis, Sargassococcus, and Sungminbooa ; see Han et al. 2018), with one filamentous form ( Andersenia ; Wetherbee et al. 2015).…”

mentioning

confidence: 99%

See 3 more Smart Citations

New pelagophytes show a novel mode of algal colony development and reveal a perforated theca that may define the class

Wetherbee

Bringloe

Costa

et al. 2020

Journal of Phycology

Self Cite

View full text Add to dashboard Cite

Pelagophytes (Heterokonta) are a morphologically diverse class of marine algae historically united only by DNA sequences. We established clonal cultures of sand‐dwelling pelagophytes collected from intertidal pools around Australia. Phylogenetic trees based on nuclear 18S rDNA and plastid rbcL, psaA, psaB, psbA, and psbC sequences revealed two new genera, Gazia and Glomerochrysis, related to Aureoumbra in a distinct lineage within the Sarcinochrysidaceae (Pelagophyceae). The three new species (Gazia saundersii, Gazia australica, and Glomerochrysis psammophila), along with an Australian strain of Aureoumbra geitleri, are characterized by dominant benthic stages that differ significantly from one another, while occasionally producing classic heterokont zoospores. The benthic stage of Ga. saundersii has a novel development not observed in any other colonial alga, consisting of large, spherical colonies (up to 140 μm in diameter) containing c. 2,500 cells that eventually differentiate and segregate into a large number of daughter colonies that are subsequently liberated. Alternatively, colonies may differentiate into a mass of zoospores that escape and settle to develop into new colonies. In Gl. psammophila, cubic packets of cells form large sticky clusters that bind sand together, while Ga. australica and A. geitleri are unicellular species. Using fixation by high‐pressure freezing, a distinctive perforated theca was observed by TEM in all genera of this lineage, and we hypothesize this unique covering may be the first morphological feature to characterize most, if not all, pelagophytes. This study substantiates the diverse nature of sand‐dwelling pelagophytes as well as their mechanisms for thriving in a dynamic habitat.

show abstract

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

New pelagophytes show a novel mode of algal colony development and reveal a perforated theca that may define the class

Wetherbee

Bringloe

Costa

et al. 2020

Journal of Phycology

Self Cite

View full text Add to dashboard Cite

show abstract

“…, Han et al. ). The remaining filamentous marine species were placed near the class Xanthophyceae in the class Chrysomerophyceae (Yang et al.…”

Section: Introductionmentioning

confidence: 99%

Further investigations on the PHAEOTHAMNIOPHYCEAE using a multigene phylogeny, with descriptions of five new species

Graf

Yang

Boo

et al. 2019

Journal of Phycology

Self Cite

View full text Add to dashboard Cite

We examined 12 strains representing eight species classified in the algal class Phaeothamniophyceae (Heterokontophyta). Based upon a five‐gene molecular phylogeny (nuclear‐encoded SSU rRNA and plastid‐encoded psaA, psbA, psbC, and rbcL) and light microscopic observations, we describe five new species: Phaeoschizochlamys santosii sp. nov., Phaeoschizochlamys siveri sp. nov., Phaeothamnion wetherbeei sp. nov., Stichogloea dopii sp. nov. and Stichogloea fawleyi sp. nov. The Phaeothamniophyceae, as delimited here, form a natural group that is sister to the Aurearenophyceae. Molecular phylogenetic analyses proved more reliable than morphological characters for distinguishing species. Evolutionary trends with the SI clade of the heterokont algae are discussed.

show abstract

Algae from Secondary Endosymbiosis

Friedl

2024

Biology of Algae, Lichens and Bryophytes

View full text Add to dashboard Cite

A Re-investigation of Sarcinochrysis marina (Sarcinochrysidales, Pelagophyceae) from its Type Locality and the Descriptions of Arachnochrysis , Pelagospilus, Sargassococcus and Sungminbooa genera nov.

Cited by 18 publications

References 18 publications

New pelagophytes show a novel mode of algal colony development and reveal a perforated theca that may define the class

New pelagophytes show a novel mode of algal colony development and reveal a perforated theca that may define the class

Further investigations on the PHAEOTHAMNIOPHYCEAE using a multigene phylogeny, with descriptions of five new species

Algae from Secondary Endosymbiosis

Contact Info

Product

Resources

About