Cephalothrix lacustris Malone et al. (2015: 3004)

Cunha De Oliveira, Elane D., Da Cunha, Alan C., Da Silva, Natalina B., Castelo-Branco, Raquel, Morais, João, Schneider, Maria Paula C., Faustino, Silvia M. M., Ramos, Vitor & Vasconcelos, Vitor, 2019, Morphological and molecular characterization of cyanobacterial isolates from the mouth of the Amazon River, Phytotaxa 387 (4), pp. 269-288 : 278

publication ID

https://doi.org/ 10.11646/phytotaxa.387.4.1

DOI

https://doi.org/10.5281/zenodo.13725387

persistent identifier

https://treatment.plazi.org/id/92147D1A-FFE9-FFC5-FF23-D6F4FE6CAA21

treatment provided by

Felipe

scientific name

Cephalothrix lacustris Malone et al. (2015: 3004)
status

 

Cephalothrix lacustris Malone et al. (2015: 3004) ( Figs 2D, 2I, 2J View FIGURE 2 )

Strains:— LEGE 15487 (MF629804), LEGE 15492 (MF629809) and LEGE 15493 (MF629810).

Description:— In culture, the trichomes start growing at the bottom of the culture flask, forming a thin biofilm towards the top, at the air-medium interface. Groups of filaments may float on the surface of the culture medium or may stay attached to air bubbles at the bottom of the flask. Trichomes are straight or flexuous, slightly constricted at the cell-cell joints and exhibit gliding motility and biconcave necridia. The trichomes are pale to olive-green and are solitary or grouped in mats. In addition, the trichomes have facultative hyaline and firm sheaths that are either attached to the trichome or are at a slight distance ( Fig. 2D, 2I, 2J View FIGURE 2 ). Cells are wider (4.2–7.5 μm) than long (1.4–3.8 μm) and have facultative gas vesicles. Apical cells might be rounded or capitate and have facultative calyptra.

Phylogeny and polyphasic identification:— The 16S rRNA gene sequences of LEGE 15487, LEGE 15493 and LEGE 15492 showed similarity values equal or higher than 98.8% ( Table 4) with the sequences from Cephalothrix lacustris Malone et al. (2015: 3004) CCIBt 3261 (98.8–99.5%) and C. lacustris CMAA 1561 (98.9–99.5%). Concerning the phylogenetic tree, only the ML method was able to give support to a subgroup formed by the abovementioned strains plus C. komarekiana Malone et al. (2015: 3003) CMAA 1558 and Phormidium sp. KS ( Fig. 3 View FIGURE 3 , see also Fig. S1 View FIGURE 1 and Fig. S2 View FIGURE 2 ). Still, the three inference methods support a major clade (ML/BI/MP = 100/1.00/97) that encloses the abovementioned group of sequences and also the sequence of Cephalothrix komarekiana CCIBt 3277, the type strain of the genus ( Fig. 3 View FIGURE 3 ). Based on the morphology, ecology and molecular data, these LEGE strains can be identified as Cephalothrix lacustris .

Kingdom

Animalia

Phylum

Nemertea

Class

Hoplonemertea

Order

Monostilifera

Family

Carcinonemertidae

Genus

Cephalothrix

Loc

Cephalothrix lacustris Malone et al. (2015: 3004)

Cunha De Oliveira, Elane D., Da Cunha, Alan C., Da Silva, Natalina B., Castelo-Branco, Raquel, Morais, João, Schneider, Maria Paula C., Faustino, Silvia M. M., Ramos, Vitor & Vasconcelos, Vitor 2019
2019
Loc

Cephalothrix lacustris

Malone, C. F. da & Rigonato, J. & Laughinghouse, H. D. & Schmidt, E. C. & Bouzon, Z. L. & Wilmotte, A. & Fiore, M. F. & Sant'Anna, C. L. 2015: )
2015
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