Phylogenetic re-evaluation of the Laurencia complex (Rhodophyta) with a description of L. succulenta sp. nov. from Korea

Nam, Ki Wan

doi:10.1007/978-1-4020-5670-3_54

Cited by 10 publications

(24 citation statements)

References 29 publications

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“…Nam) Martin-Lescanne. The changes made were based on both morphological and molecular approaches and involved the resurrection of the genus Osmundea (Nam et al, 1994); the elevation of subgenus Chondrophycus to generic rank (Garbary & Harper, 1998); new delineations of the genera Chondrophycus, Laurencia and Osmundea (Nam, 1999); proposal and subsequent validation by Nam (2006Nam ( , 2007 of the genus Palisada, based on Yamada's (1931) section Palisadae; and the establishment of the genus Yuzurua, based on Nam's (1999) subgenus Yuzurua (Martin- Lescanne et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Several morphological, anatomical and reproductive characters that are used in the taxonomy of the Laurencia complex of genera have been shown to possess diagnostic value only at the generic level (Saito, 1967;Nam et al, 1994;Garbary & Harper, 1998;Nam, 1999Nam, , 2006. Likewise, many species are poorly defined and exhibit extensive morphological plasticity, which complicates their taxonomic delimitation.…”

Section: Introductionmentioning

confidence: 99%

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Redefining the taxonomic status ofLaurencia dendroidea(Ceramiales, Rhodophyta) from Brazil and the Canary Islands

Cassano

Metti

Millar

et al. 2012

European Journal of Phycology

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Morphological and molecular studies have been performed on Laurencia dendroidea derived from Brazil and the Canary Islands. This species possesses all of the characters that are typical of the genus Laurencia, including the production of the first pericentral cell underneath the basal cell of the trichoblast; the production of tetrasporangia from particular pericentral cells without the formation of additional fertile pericentral cells; spermatangial branches that are produced from one of two laterals on the suprabasal cell of the trichoblasts; and a procarp-bearing segment that possesses five pericentral cells. The phylogenetic position of L. dendroidea was inferred by analysing the chloroplast-encoded rbcL gene sequences of 51 taxa. Phylogenetic analyses revealed that the taxa previously identified and cited in Brazil as Laurencia filiformis, L. majuscula and L. obtusa and in the Canary Islands as L. majuscula all represent the same taxonomic entity and examination of type material allowed us to identify this entity as L. dendroidea, whose type locality is in Brazil. Laurencia obtusa from the Northern Atlantic is confirmed to represent a distinct species, which displays high genetic divergence with respect to western and eastern Atlantic samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Redefining the taxonomic status ofLaurencia dendroidea(Ceramiales, Rhodophyta) from Brazil and the Canary Islands

Cassano

Metti

Millar

et al. 2012

European Journal of Phycology

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“…The taxonomy of the Laurencia complex has undergone several changes based on the use of new vegetative morpho-anatomical and reproductive features, cladistic analyses of morphological characters and molecular approaches based on the plastidial rbcL gene (Nam et al, 1994;Garbary & Harper, 1998;Nam, 1999Nam, , 2006Nam, , 2007Martin-Lescanne et al, 2010). These changes include the resurrection of the genus Osmundea Stackhouse (Nam et al, 1994), the elevation of the subgenus Chondrophycus Tokida & Saito (in Saito, 1967) to the generic rank (Garbary & Harper, 1998), the new delineations of the genera Chondrophycus, Laurencia and Osmundea (Nam, 1999), the definition of the proposal of the genus Palisada (Yamada) K.W.…”

Section: Introductionmentioning

confidence: 99%

“…These changes include the resurrection of the genus Osmundea Stackhouse (Nam et al, 1994), the elevation of the subgenus Chondrophycus Tokida & Saito (in Saito, 1967) to the generic rank (Garbary & Harper, 1998), the new delineations of the genera Chondrophycus, Laurencia and Osmundea (Nam, 1999), the definition of the proposal of the genus Palisada (Yamada) K.W. Nam based on Yamada's (1931) section Palisadae (Nam, 2006) and its later validation (Nam, 2007), and the establishment of the genus Yuzurua (K.W. Nam) Martin-Lescanne based on Nam's (1999) subgenus Yuzurua (Martin-Lescanne et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Lamouroux itself, Osmundea, Chondrophycus, Palisada and Yuzurua. Several morpho-anatomical and reproductive characters used in the taxonomy of the complex have been shown to have diagnostic value at the generic level only (Saito, 1967;Nam et al, 1994;Garbary & Harper, 1998;Nam, 1999Nam, , 2006. Many species have no defined taxonomic boundaries and present extensive morphological plasticity, making their taxonomic delimitation difficult.…”

Section: Introductionmentioning

confidence: 99%

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Overview of the taxonomy and of the major secondary metabolites and their biological activities related to human health of the Laurencia complex (Ceramiales, Rhodophyta) from Brazil

Fujii¹,

Cassano²,

Stein³

et al. 2011

Rev. bras. farmacogn.

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Abstract:In Brazil, the Laurencia complex is represented by twenty taxa: Laurencia s.s. with twelve species, Palisada with four species (including Chondrophycus furcatus now that the proposal of its transference to Palisada is in process), and Osmundea and Yuzurua with two species each. The majority of the Brazilian species of the Laurencia complex have been phylogenetically analyzed by 54 rbcL sequences, including five other Rhodomelacean species as outgroups. The analysis showed that the Laurencia complex is monophyletic with high posterior probability value. The complex was separated into five clades, corresponding to the genera: Chondrophycus, Laurencia, Osmundea, Palisada, and Yuzurua. A bibliographical survey of the terpenoids produced by Brazilian species showed that only six species of Laurencia and five of Palisada (including C. furcatcus) have been submitted to chemical analysis with 48 terpenoids (47 sesquiterpenes and one triterpene) isolated. No diterpenes were found. Of the total, 23 sesquiterpenes belong to the bisabolane class and eighteen to the chamigrene type, whose biochemical precursor is bisabolane, two are derived from lauranes and four are triquinols. Despite the considerable number of known terpenes and their ecological and pharmacological importance, few experimental biological studies have been performed. In this review, only bioactivities related to human health were considered.

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Progress in the Chemistry of Organic Natural Products 102

Kinghorn¹,

Falk²,

Gibbons³

et al. 2016

Progress in the Chemistry of Organic Natural Products

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Phylogenetic re-evaluation of the Laurencia complex (Rhodophyta) with a description of L. succulenta sp. nov. from Korea

Cited by 10 publications

References 29 publications

Redefining the taxonomic status ofLaurencia dendroidea(Ceramiales, Rhodophyta) from Brazil and the Canary Islands

Redefining the taxonomic status ofLaurencia dendroidea(Ceramiales, Rhodophyta) from Brazil and the Canary Islands

Overview of the taxonomy and of the major secondary metabolites and their biological activities related to human health of the Laurencia complex (Ceramiales, Rhodophyta) from Brazil

Progress in the Chemistry of Organic Natural Products 102

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