A new crustose red alga Peyssonnelia rumoiana (Rhodophyta, Gigartinales) from Japan

Kato, Aki; Masuda, Michio

doi:10.1046/j.1440-1835.2003.00289.x

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…The arrangement of hypothallial filaments (polyflabellate versus parallel) is a critical taxonomic feature (Denizot 1968; Maggs & Irvine 1983; Guimarães & Fujii 1999; Kato & Masuda 2002, 2003). P. boudouresquei , described from Brazil (Yoneshigue 1984), and P. japonica , originally described from Shizuoka Prefecture, Japan (Segawa 1941), are discriminated from P. armorica by possessing hypothallial filaments arranged in a parallel layer (Guimarães & Fujii 1999; A. Kato, unpubl.…”

Section: Resultsmentioning

confidence: 99%

“…Although 9 species of Peyssonnelia have been reported in Japanese waters (Kato & Masuda 2003), our continuing field surveys along the Japanese coasts have revealed the presence of several unrecorded or undescribed species of Peyssonnelia . Here we report the occurrence of 2 species, Peyssonnelia armorica (P. Crouan et H. Crouan) Weber‐van Bosse and Peyssonnelia harveyana J. Agardh, from Japan for the first time and we describe the detailed morphological features by which these species can be precisely identified.…”

Section: Introductionmentioning

confidence: 90%

“…Peyssonnelia Decaisne (Peyssonneliaceae, Gigartinales) is the largest genus of non‐coralline crustose Rhodophyta and currently includes 71 species worldwide (Kato & Masuda 2002, 2003). However, little is known regarding the reproductive structures of many of these species (Maggs & Irvine 1983), in particular about the origin of the gonimoblast and the developmental pattern of spermatangia, both of which are now considered requisite for species discrimination of Peyssonnelia (Maggs & Irvine 1983; Guimarães & Fujii 1999; Kato & Masuda 2002, 2003).…”

Section: Introductionmentioning

confidence: 99%

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New records of Peyssonnelia armorica and Peyssonnelia harveyana (Rhodophyta, Gigartinales) from Japan

Kato

Masuda

Kawai

2005

Phycological Research

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Two species of the crustose red algal genus Peyssonnelia (Gigartinales, Peyssonneliaceae) are reported from Japanese waters for the first time. These species share the following combination of vegetative and reproductive features: thalli with appressed margins, perithallial filaments arising from the whole upper surface of each hypothallial cell (the Peyssonnelia rubra-type anatomy), unicellular rhizoids, hypobasal calcification and spermatangia that are produced in double chains (the Peyssonnelia harveyana-type spermatangial filament). However, they differ obviously from each other in the hypothallus orientation as seen from below, the perithallus structure in relation to the consistency of the crust, the origin of gonimoblasts and the elevation of the nemathecia. Peyssonnelia armorica is characterized by: (i) hypothallial filaments comprising a polyflabellate layer; (ii) easily separable perithallial filaments in a gelatinous matrix; (iii) gonimoblasts originating exclusively from the auxiliary cell; and (iv) semi-immersed (slightly elevated) nemathecia. Peyssonnelia harveyana is characterized by: (i) hypothallial filaments arranged in parallel rows; (ii) closely packed perithallial filaments in a firm matrix; (iii) gonimoblsts originating from both the auxiliary cell and the connecting filament; and (iv) conspicuously elevated nemathecia.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

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New records of Peyssonnelia armorica and Peyssonnelia harveyana (Rhodophyta, Gigartinales) from Japan

Kato

Masuda

Kawai

2005

Phycological Research

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New records of three marine red algae from Japan

Masuda¹,

Tani

Kurihara

2006

Phycological Research

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Three species in the red algal order Ceramiales, Dasya longifila Masuda et Uwai (Dasyaceae), Endosiphonia horrida (C. Agardh) P. Silva (Rhodomelaceae) and Laurencia flexilis Setchell (Rhodomelaceae), are reported from Japan for the first time, and their morphological features are described along with taxonomic comments. Our findings point to the northernmost limit of geographic distribution of these species in the northwestern Pacific. Dasya longifila is characterized by small, sparsely corticated axes, long pseudolaterals in which intercalary cell divisions take place, and a small number of tetrasporangial stichidia and spermatangial branches per fertile pseudolateral. Endosiphonia horrida is characterized by frequently anastomosing branches that form a bush-like tuft without a percurrent axis, inner cortical cells becoming the same length as the axial and periaxial cells, and luxuriously developed, unbranched trichoblasts. Laurencia flexilis is characterized by numerous cartilaginous rigid axes developing from a basal disc without creeping branches, the production of 4 periaxial cells per vegetative segment and the absence of longitudinally oriented secondary pitconnections between contiguous superficial cortical cells.

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Taxonomic revision of the Peyssonneliales (Rhodophyta): Circumscribing the authentic Peyssonnelia clade and proposing four new genera and seven new species

Pestana

Nunes

Cassano

et al. 2021

Journal of Phycology

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The Peyssonneliaceae represents the only family in the order Peyssonneliales, a clade of red encrusting algae distributed worldwide, including 136 species in eleven currently accepted genera. Delineation of genera in the Peyssonneliaceae has mostly been based on vegetative characteristics. Previous molecular phylogenies have shown that some traditionally circumscribed genera are not monophyletic and relationships among them are uncertain. We contribute to the knowledge of the evolutionary history of this clade, presenting a robust rbcL phylogeny that provides new insights on the origin and diversification of the Peyssonneliales. Based on a broad dataset and morphological analyses, we propose a revised taxonomic scheme for the Peyssonneliales resolved as monophyletic with well-supported main lineages. Our results show that Peyssonnelia is polyphyletic, and, therefore, we propose three new genera, Agissea, Olokunia, and Rhodowynnea to accommodate species currently assigned to Peyssonnelia, but distantly related to the clade with the type species of the genus. Additionally, barcoding techniques and analyzed criteria for specific delimitation supported the establishment of one new genus, Brasilophycus, and seven new species, from northeastern Brazil: Agissea amadoi, A. densissima, A. taberniforma, A. villatlantica, A. yemonjasagbae, Brasilophycus similis, and B. roseomarginatus. Our integrative taxonomic approach reveals underestimated diversity of Brazilian Peyssonneliales. Investment in broader sampling along the Brazilian coast and other tropical areas may reveal that its marine biodiversity can be expanded, enlightening our knowledge about this ecologically important group of red algae.

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A new crustose red alga Peyssonnelia rumoiana (Rhodophyta, Gigartinales) from Japan

Cited by 5 publications

References 7 publications

New records of Peyssonnelia armorica and Peyssonnelia harveyana (Rhodophyta, Gigartinales) from Japan

New records of Peyssonnelia armorica and Peyssonnelia harveyana (Rhodophyta, Gigartinales) from Japan

New records of three marine red algae from Japan

Taxonomic revision of the Peyssonneliales (Rhodophyta): Circumscribing the authentic Peyssonnelia clade and proposing four new genera and seven new species

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