Scytolyngbya timoleontis, gen. et sp. nov. (Leptolyngbyaceae, Cyanobacteria): a novel false branching Cyanobacteria from China

Song, Gaofei; Jiang, Yongguang; Li, Renhui

doi:10.11646/phytotaxa.224.1.5

Cited by 24 publications

(16 citation statements)

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“…The Synechococcales contains a great number of molecularly and morphologically divergent taxa. Seventy-four genera were recognized in the order in the newest taxonomic system (Komárek et al 2014), with (counting Lagosinema) 18 additional genera being published since that treatment (Dvořák et al 2015;Song et al 2015;Vaz et al 2015;Li & Li 2016;Miscoe et al 2016;Sciuto & Moro 2016;Dvořak et al 2017;Jahodářová et al 2017aJahodářová et al , 2017bSciuto et al 2017;Mai et al 2018). Furthermore, there are numerous unnamed or incorrectly named sequenced species that appear in our Science for the Developing World (OWSD) and the Swedish International Development Cooperation Agency (Sida) postgraduate training fellowship to Sandra C. Akagha (Grant No.…”

Section: Discussionmentioning

confidence: 99%

Lagosinema tenuis gen. et sp. nov. (Prochlorotrichaceae, Cyanobacteria): a new brackish water genus from Tropical Africa

Akagha¹,

Johansen²,

Nwankwo³

et al. 2019

Fottea

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A novel filamentous, nonheterocytous cyanobacterium was isolated from Lagos Lagoon, Nigeria. The isolate was <3.0 µm wide, untapered, with small rounded polar bodies (aerotopes or cyanophycin granules) visible at the crosswalls, and consequently fit the morphological description of Limnothrix planctonica. Although morphologically inseparable from that species, it was molecularly distant from that taxon, with genetic identities between the two taxa ranging 90.73-92.49%, a degree of separation typical of different genera. Both taxa, as well as Limnothrix rosea, are phylogenetically in the Prochlorotrichaceae, distant from the type species of Limnothrix, L. redekei, which is in the Pseudanabaenaceae. The isolate is herein described as Lagosinema tenuis gen. et sp. nov.

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Section: Discussionmentioning

confidence: 99%

Lagosinema tenuis gen. et sp. nov. (Prochlorotrichaceae, Cyanobacteria): a new brackish water genus from Tropical Africa

Akagha¹,

Johansen²,

Nwankwo³

et al. 2019

Fottea

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“…Unfortunately, this circumscription is so broad that numerous genetically distinct strains and species were assigned to Leptolyngbya based on morphology, even though recent phylogenetic studies have demonstrated that the genus is polyphyletic and in need of taxonomic revision , Osorio-Santos et al 2014. This revisionary work has commenced, and over a dozen novel genera have been split out of Leptolyngbya thus far (Abed et al 2002, Turicchia et al 2009, Perkerson et al 2011, Taton et al 2011, Zammit et al 2012, Dadheech et al 2012, Vaz et al 2015, Song et al 2015a, 2015b, Miscoe et al, 2016, Sciuto et Moro 2016, Sciuto et al 2017, Strunecký et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Nodosilinea chupicuarensis sp. nov. (Leptolyngbyaceae, Synechococcales) a subaerial cyanobacterium isolated from a stone monument in central Mexico

et al. 2018

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Microorganisms of subaerial biofilms, which develop on the surface of stone monuments, have been widely studied due to their impact on Cultural Heritage deterioration. Nevertheless, these extremophile microorganisms are poorly characterised. In this study, a cyanobacterial strain isolated from an archaeological zone in north-central Mexico was characterised through a polyphasic study based on ecological, morphological, and molecular data. Phylogenetic analyses were done using sequences of the 16S rRNA gene and the 16S-23S ITS region. Based on the polyphasic data, a new species corresponding to the genus Nodosilinea is described. This alkaliphilic species has optimum growth at pH of 9. Its fatty acid profile indicates that C18:1, 9E and C16:0 are its most abundant fatty acids. Extracellular polymeric substance production was verified on this strain. Only a few species of the genus Nodosilinea have been documented and described, and this is the first report of their presence in central Mexico. Hence the name Nodosilinea chupicuarensis sp. nov. is proposed.

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“…Phylogenetic evaluations of the genus emerging from 16S rRNA gene sequence phylogeny revealed that there are two groups: Leptolyngbya sensu stricto, a monophyletic and well-supported clade and Leptolyngbya sensu lato, comprising several morphologically and phylogenetically related lineages (Taton et al 2006). Subsequently, phylogenetic studies on Leptolyngbya sensu lato led to the separation and definition of several new genera: Nodosilinea, Haloleptolyngbya, Oculatella, Scytolyngbya, Pantanalinema, Alkalinema, and Stenomitos (Perkerson et al 2011, Dadheech et al 2012, Zammit et al 2012, Song et al 2015, Vaz et al 2015, Miscoe et al 2016.…”

Section: Discussionmentioning

confidence: 99%

Leptothoe, a new genus of marine cyanobacteria (Synechococcales) and three new species associated with sponges from the Aegean Sea

Konstantinou

Voultsiadou

Panteris

et al. 2019

Journal of Phycology

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Cyanobacterial diversity associated with sponges remains underestimated, though it is of great scientific interest in order to understand the ecology and evolutionary history of the symbiotic relationships between the two groups. Of the filamentous cyanobacteria, the genus Leptolyngbya is the most frequently found in association with sponges as well as the largest and obviously polyphyletic group. In this study, five Leptolyngbya‐like sponge‐associated isolates were investigated using a combination of molecular, chemical, and morphological approach and revealed a novel marine genus herein designated Leptothoe gen. nov. In addition, three new species of Leptothoe, Le. sithoniana, Le. kymatousa, and Le. spongobia, are described based on a suite of distinct characters compared to other marine Leptolyngbyaceae species/strains. The three new species, hosted by four sponge species, showed different degrees of host specificity. Leptothoe sithoniana and Le. kymatousa hosted by the sponges Petrosia ficiformis and Chondrilla nucula, respectively, seem to be more specialized than Le. spongobia, which was hosted by the sponges Dysidea avara and Acanthella acuta. All three species contained nitrogen‐fixing genes and may contribute to the nitrogen budget of sponges. Leptothoe spongobia TAU‐MAC 1115 isolated from Acanthella acuta was shown to produce microcystin‐RR indicating that microcystin production among marine cyanobacteria could be more widespread than previously determined.

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Scytolyngbya timoleontis, gen. et sp. nov. (Leptolyngbyaceae, Cyanobacteria): a novel false branching Cyanobacteria from China

Cited by 24 publications

References 0 publications

Lagosinema tenuis gen. et sp. nov. (Prochlorotrichaceae, Cyanobacteria): a new brackish water genus from Tropical Africa

Lagosinema tenuis gen. et sp. nov. (Prochlorotrichaceae, Cyanobacteria): a new brackish water genus from Tropical Africa

Nodosilinea chupicuarensis sp. nov. (Leptolyngbyaceae, Synechococcales) a subaerial cyanobacterium isolated from a stone monument in central Mexico

Leptothoe, a new genus of marine cyanobacteria (Synechococcales) and three new species associated with sponges from the Aegean Sea

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