Integrative systematics approaches revealed that the rare red alga Schimmelmannia (Shimmelmanniaceae, Acrosymphytales) from Japan is a new species: The description of S. benzaiteniana sp. nov.

2020 ◽  
Vol 68 (4) ◽  
pp. 290-297
Author(s):  
Masakazu Hoshino ◽  
Chihiro Ino ◽  
Taiju Kitayama ◽  
Kazuhiro Kogame
Keyword(s):  
New Species ◽  
Red Alga ◽  
Integrative Systematics ◽  
A New Species

scholarly journals Discovery of the freshwater sponge genus Corvospongilla Annandale (Porifera: Spongillida) in Australia with the description of a new species and phylogeographic implications

Limnology ◽  
2021 ◽  
Author(s):  
Renata Manconi ◽  
Dirk Erpenbeck ◽  
Jane Fromont ◽  
Gert Wörheide ◽  
Roberto Pronzato
Keyword(s):  
New Species ◽  
Morphological Traits ◽  
Freshwater Sponge ◽  
Freshwater Sponges ◽  
Molecular Analyses ◽  
Biogeographic Patterns ◽  
Hydrographic Basin ◽  
Integrative Systematics ◽  
North Western ◽  
A New Species

AbstractA recent discovery of freshwater sponges in an unexplored hydrographic basin in north-western Australia provided the opportunity to investigate the genus Corvospongilla Annandale (Spongillida: Spongillidae) using integrative systematics. Emendation of the genus diagnosis is provided. A comparative analysis of a Corvospongilla global dataset of morphological traits together with biogeographic patterns disclosed a new Australasian Corvospongilla species and along with molecular analyses provided the basis for a phylogenetic and phylogeographic tree for some Asian, Afrotropical and Australasian lineages.

Petersenia palmariae n. sp. (Oomycetes): a pathogenic parasite of the red alga Palmaria mollis (Rhodophyceae)

1985 ◽  
Vol 63 (3) ◽  
pp. 404-408 ◽  
Author(s):  
John P. van der Meer ◽  
Curt M. Pueschel
Keyword(s):  
New Species ◽  
Marine Algae ◽  
Vancouver Island ◽  
Red Alga ◽  
Palmaria Palmata ◽  
Infection Cycle ◽  
Fungal Parasite ◽  
Pathogenic Parasite ◽  
A New Species

Specimens of Palmaria mollis (Setchell and Gardner) van der Meer and Bird collected from Vancouver Island, Canada, were found to harbour a pathogenic fungal parasite. When infected fronds were put into culture, the algal thallus became completely covered with small white lesions. These were most concentrated in young tissue and soon killed the apices of the fronds. The parasite completed approximately one infection cycle per week at 10 °C. It died at temperatures near 15 °C, even though the host remained healthy at 20 °C. The parasite was identified as a species of Petersenia (Oomycetes). It most resembled P. lobata (H. E. Petersen) Sparrow but differed sufficiently in detail to consider it a new species, Petersenia palmariae. The new species does not infect Ceramium rubrum (Hudson) C. Agardh which serves as host for both P. lobata and P. pollagaster, the only other members of the genus known to parasitize marine algae. Nor does it infect Palmaria palmata (L.) O. Kuntze, a species related to the host on which it was discovered, which suggests Petersenia palmariae may be host specific.

Streblocladia (Rhodomelaceae) in New Zealand: recognition of a new species

Phytotaxa ◽  
2018 ◽  
Vol 374 (1) ◽  
pp. 41
Author(s):  
MYUNG SOOK KIM ◽  
BYEONGSEOK KIM ◽  
MI YEON YANG ◽  
ROBERTA D’ARCHINO ◽  
JUDY E. SUTHERLAND ◽  
...  
Keyword(s):  
New Species ◽  
New Zealand ◽  
Strong Support ◽  
Red Alga ◽  
Morphological Evidence ◽  
Rbcl Gene ◽  
Monophyletic Clade ◽  
Molecular Analyses ◽  
A New Species ◽  
Rbcl Gene Sequences

The genus Streblocladia was described by early European collectors based on S. neglecta, a marine red alga from southern New Zealand currently treated as a taxonomic synonym of Streblocladia glomerulata. In New Zealand, Streblocladia includes two species and has always been considered distinct. To analyse the phylogenetic relationships of this genus with other Polysiphonia sensu lato, we conducted a molecular-assisted investigation using plastid rbcL gene sequences of recent collections of Streblocladia from New Zealand, as well as morphological observations. The molecular analyses indicated that Streblocladia species form a monophyletic clade sister to P. rhododactyla with strong support. The Streblocladia clade is clearly separated from other species of Polysiphonia sensu lato. Species of Streblocladia are characterized by sympodially branched, corticated main axes, the absence of vegetative trichoblasts, and spermatangial branches that are unilaterally arranged and replace the whole trichoblast. As a result, the New Zealand endemic Polysiphonia rhododactyla is transferred to the genus Streblocladia on the basis of genetic and morphological evidence and compared with the two other species from New Zealand, S. glomerulata and S. muelleriana.

Hypnea platyclada, a new species of red alga (Rhodophyta, Cystocloniaceae) from Brazil

Phytotaxa ◽  
2013 ◽  
Vol 85 (1) ◽  
Author(s):  
PRISCILA BARRETO DE JESUS ◽  
SILVIA MARIA PITA DE BEAUCLAIR GUIMARÃES ◽  
JOSÉ MARCOS DE CASTRO NUNES
Keyword(s):  
New Species ◽  
Red Alga ◽  
A New Species

scholarly journals Taxonomic determination of the cryptogenic red alga, Chondria tumulosa sp. nov., (Rhodomelaceae, Rhodophyta) from Papahānaumokuākea Marine National Monument, Hawai‘i, USA: A new species displaying invasive characteristics

PLoS ONE ◽  
2020 ◽  
Vol 15 (7) ◽  
pp. e0234358
Author(s):  
Alison R. Sherwood ◽  
John M. Huisman ◽  
Monica O. Paiano ◽  
Taylor M. Williams ◽  
Randall K. Kosaki ◽  
...  
Keyword(s):  
New Species ◽  
Red Alga ◽  
National Monument ◽  
A New Species

Rhoicosphenia michali: a new species of marine diatom (Bacillariophyta) from King George Island, Antarctica

Phytotaxa ◽  
2014 ◽  
Vol 191 (1) ◽  
pp. 141 ◽  
Author(s):  
Ryszard Ligowski ◽  
ADIL Y. AL-HANDAL ◽  
ANGELA WULFF ◽  
RICHARD W. JORDAN
Keyword(s):  
New Species ◽  
Southern Hemisphere ◽  
Living Cells ◽  
Red Alga ◽  
Marine Diatom ◽  
King George Island ◽  
Coastal Habitats ◽  
Free Living ◽  
Sublittoral Zone ◽  
A New Species

Rhoicosphenia michali sp. nov., described from the shallow sublittoral zone in Antarctica, is the second species in the genus with just one raphe slit on its convex valve. The first species, Rhoicosphenia flexa, was also described from marine coastal habitats in the Southern Hemisphere. Here, the morphology and ecology of R. flexa and R. michali are compared. The new species described herein may be endemic to Antarctica and can be found as free living cells on the shallow seabed, although it mainly occurs on the red alga Georgiella confluens, which is endemic to Antarctica.

Integrative systematics of clathrinid sponges: morphological, reproductive and phylogenetic characterisation of a new species of Leucetta from Antarctica (Porifera, Calcarea, Calcinea) with notes on the occurrence of flagellated sperm

2018 ◽  
Vol 32 (4) ◽  
pp. 827 ◽  
Author(s):  
Ana Riesgo ◽  
Fernanda F. Cavalcanti ◽  
Nathan J. Kenny ◽  
Pilar Ríos ◽  
Javier Cristobo ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
South Shetland Islands ◽  
New Taxon ◽  
Shetland Islands ◽  
Morphological And Molecular Data ◽  
Integrative Systematics ◽  
First Time ◽  
A New Species

Our study reports on the occurrence of a new species of Leucetta (Calcinea, Calcarea) from the Southern Ocean, Leucetta giribeti, sp. nov., collected in the shallow waters (15m depth) of Deception Island, South Shetland Islands. This new taxon is described based on a combination of morphological and molecular data, including the description of oocytes, embryos, larvae and sperm found in the choanosome. While female reproductive elements showed great similarities with those of other calcineans, sperm is reported here for the first time in the whole Calcinea subclass. Sperm cells are flagellated and possess a typical spermatic mid-piece, which is usually observed in cnidarians. In our phylogenetic analyses, we recovered Leucetta giribeti, sp. nov. as sister species of a clade formed by species of the genera Leucetta, Pericharax and Leucettusa. Although the clade in which Leucetta giribeti, sp. nov. is placed is supported by molecular and morphological features, we cannot propose a new genus due to uncertainties regarding the type species of the genus, Leucetta primigenia Haeckel, 1872. Our study reinforces the relevance of integrative approaches in the description of new taxa and contributes to resolving the poorly known reproductive patterns of Antarctic sponge species.

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