Neosiphonia ramirezii sp. nov. (Rhodomelaceae, Rhodophyta) from Peru

Abstract

The genus Neosiphonia Kim and Lee 1999 contains approximately 30 species worldwide. Unidentified samples from Peru are here described as a new species, Neosiphonia ramirezii sp. nov., on the basis of morphological and molecular data. N. ramirezii sp. nov. is characterized by the presence of a limited prostrate system, well-developed erect filaments, rhizoids cut off from pericentral cells by cross walls, four pericentral cells that are completely ecorticate, scarce trichoblasts, inconspicuous scar cells, procarps with three-celled carpogonial branches, spermatangial branches developed from basal cells of forked trichoblasts, and spirally arranged tetrasporangia. Our new species is distinct from N. flaccidissima (Hollenberg) Kim et Lee, N. sphaerocarpa (Børgesen) Kim et Lee, and N. savatieri (Hariot) Kim et Lee from the Pacific temperate coast of South America and from 14 Neosiphonia species reported worldwide by having limited prostrate filaments attached by numerous rhizoids, dichotomous ("Y" shaped) branches in the main axes, and scarce trichoblasts. Phylogenetic rbcL analyses confirm the placement of the new taxon as a distinct species in the genus Neosiphonia.

Wilsonosiphonia gen. nov. (Rhodomelaceae, Rhodophyta) based on molecular and morpho‐anatomical characters

“…Cho, Polysiphonia nuda Mamoozadeh & Freshwater (Mamoozadeh and Freshwater , Bustamante et al. , ). However, if there are more than four pericentral cells, the number of pericentral cells varies, as in Lampisiphonia iberica Bárbara, Secilla, Diaz‐Tapia & H.G.…”

Polysiphonia freshwaterisp. nov. andPolysiphonia koreanasp. nov.: two new species ofPolysiphonia(Rhodomelaceae, Rhodophyta) from Korea

“…Polymerase chain reactions (PCR) were set up with a final volume of 20 μl, by using 2.5 μl of genomic DNA, 2 μl of 10 mM dNTP mix, 2 μl of 10× reaction buffer, 1 μl of 5-10 μM forward and reverse primers and 0.2 μl of TOP DNA polymerase (Bioneer, Daejeon, Korea). The rbcL locus was amplified by using the primer combination F7-R753 and F645-RrbcS start (Lin et al, 2001;Bustamante et al, 2013), and purified with the PCRquick-spin TM PCR Product Purification Kit (iNtRON Biotechnology Inc., Seongnam, Korea). Cycle sequencing was performed by using the primers F7, F645, R753 and RrbcS start (Freshwater & Rueness, 1994;Cho et al, 2003;Bustamante et al, 2012).…”

The Introduction of the Asian Red Algae Melanothamnus japonicus (Harvey) Díaz-Tapia & Maggs in Peru as a Means to Adopt Management Strategies to Reduce Invasive Non-Indigenous Species

“…Molecular evidence for the introduction of M. japonicus has been shown in Italy [18], the USA, Spain, Australia, and New Zealand [11,22], without reports for South American countries. Even though M. japonicus has not been reported on the Pacific and Atlantic coasts of South America, ten Melanothamnus species have been identified in these regions, with Peru [23][24][25][26]. It is noteworthy to mention that the identification of many of these species, along with the newly identified Rhodophyta species for South America [27][28][29][30][31], was performed thanks to the use of molecular tools, highlighting the importance of molecular analysis for revealing the hidden biodiversity in those regions where the phycological studies have recently begun to increase [25].…”