Reproductive morphology and phenological aspects of one morphological variant of Hypnea pseudomusciformis (Gigartinales, Rhodophyta)

Jesus, Priscila Barreto de; Pestana, Edilene Maria dos Santos; Affe, Helen Michelle de Jesus; Rocha, Diogo Souza Bezerra; Caires, Taiara Aguiar; Nunes, José Marcos de Castro; Schnadelbach, Alessandra Selbach

doi:10.1590/0102-33062018abb0247

Cited by 5 publications

(3 citation statements)

References 34 publications

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“…Also, small species find less competition with leafy or leathery forms in this environment (Vasconcelos et al, 2019). In particular, Hypnea pseudomusciformis has biological aspects that favor its occurrence in the reef plateau, such as its reproductive period, that is stimulated by constant nutrients and luminosity (Schenkman, 1989;Caires et al, 2013;Jesus et al, 2019). In addition, the life form in the predominant phase of the reproductive cycle, is composed by an extensive network of basal filaments, which efficiently adhere to the substrate and better cope with desiccation resistance (Reis and Yoneshigue-Valentin, 1998;Bringloe et al, 2020).…”

Section: Rpmentioning

confidence: 99%

A highly diverse phytobenthic community along a short coastal reef gradient in northeastern Brazil

Ferreira

2022

Universitas Scientiarum

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This study aimed to inventory the species of marine macroalgae and analyze the distribution and biomass patterns of their communities along a short coastal reef gradient in northeastern Brazil. Samples were collected using the technique of random squares, distributed in the three habitats: reef front region (FR), tide pools (TP), and reef plateau (RP). These three make up the reef gradient from the sea to the beach. A total of 56 taxa were identified, with Ochrophyta and Rhodophyta standing out as the phyla with the greater taxonomic richness, and the largest biomass represented by the species Sargassum vulgare (30 % of total biomass) and (16 %). The key emergening patterns along the reef gradient were the occurrence of groups of exclusive taxa in each habitat, and significant variation in biomass, greater in the TP (166.1 g m-2) and lower in the RP (70.5 g m-2). Despite being an environment under marked anthropogenic influence (i.e., tourism and development), we observed a high diversity of species, with a distribution pattern that reflects a high environmental heterogeneity and substantial ecological integrity.

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Section: Rpmentioning

confidence: 99%

A highly diverse phytobenthic community along a short coastal reef gradient in northeastern Brazil

Ferreira

2022

Universitas Scientiarum

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“…Molecular studies are rapidly resolving problems of macroalgal taxonomy, clarifying relationships, and leading to the discovery of new taxa (e.g., D ıaz-Tapia et al 2013, Verbruggen 2014, Hardesty and Freshwater 2018. Particularly in the Rhodophyta, studies using DNA markers are leading to the recognition of cryptic species that are impossible to distinguish based solely on morphological characters (e.g., Jesus et al 2018, Boo and Hughey 2019, D ıaz-Tapia et al 2020.…”

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confidence: 99%

“…Particularly in the Rhodophyta, studies using DNA markers are leading to the recognition of cryptic species that are impossible to distinguish based solely on morphological characters (e.g., Jesus et al. 2018, Boo and Hughey 2019, Díaz‐Tapia et al. 2020).…”

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confidence: 99%

Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov.

Tonicelli

Croce

Díaz‐Tapia

et al. 2021

Journal of Phycology

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The classification of Cystoclonium obtusangulum has been questioned since the species was first described by Hooker and Harvey as Gracilaria? obtusangula. The objective of this study was to provide the first comprehensive taxonomic analysis of Cystoclonium obtusangulum, based on DNA sequences coupled with morphological observations made on syntype specimens and new collections. Sequence divergences of rbcL, UPA, and COI‐5P, and maximum‐likelihood phylogenies for rbcL and 18S demonstrated that specimens identified as Cystoclonium obtusangulum represent a clade of two distinct species that are distantly related to the generitype Cystoclonium purpureum. A new genus, Meridionella gen. nov., is proposed for this clade. The two species placed in this new genus were morphologically indistinguishable cryptic species, but have disjunct distributions, with Meridionella obtusangula comb. nov. found from temperate to cold coasts of South America and the Falkland Islands and Meridionella antarctica sp. nov., occurring in Antarctic waters. Vegetative and reproductive characters of Meridionella gen. nov. are described, and implications of our results for the biogeography of the family Cystocloniaceae are discussed.

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Concise review of the genus Hypnea J.V.Lamouroux, 1813

2020

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Reproductive morphology and phenological aspects of one morphological variant of Hypnea pseudomusciformis (Gigartinales, Rhodophyta)

Cited by 5 publications

References 34 publications

A highly diverse phytobenthic community along a short coastal reef gradient in northeastern Brazil

A highly diverse phytobenthic community along a short coastal reef gradient in northeastern Brazil

Meridionella gen. nov., a New Genus of Cystocloniaceae (Gigartinales, Rhodophyta) from the Southern Hemisphere, Including M. obtusangula comb. nov. and M. antarctica sp. nov.

Concise review of the genus Hypnea J.V.Lamouroux, 1813

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