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Relevant bibliographies by topics / Bangiales

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Academic literature on the topic 'Bangiales'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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Journal articles on the topic "Bangiales"

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DUMILAG, RICHARD V., ZAE-ZAE A. AGUINALDO, CYNTHIA B. MINTU, MYRNA P. QUINTO, EVELYN C. AME, ROLANDO C. ANDRES, WILBERTO D. MONOTILLA, et al. "A review of the current taxonomic status of foliose Bangiales (Rhodophyta) in the Philippines." Phytotaxa 312, no. 1 (July 4, 2017): 47. http://dx.doi.org/10.11646/phytotaxa.312.1.3.

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Causes of taxonomic confusion are lamentably well known in foliose Bangiales. A magnitude of these uncertainties stems from the paucity of available taxonomic traits in morphologically homoplastic species. At present, the taxonomic identity and systematics of many of the Philippine foliose Bangiales are in a state of flux. A critical examination of published literature on Philippine records of 10 species of foliose Bangiales has rendered the need for re-confirmation of the presence of Porphyra atropurpurea, Porphyra marcosii, Pyropia denticulata, and Pyropia suborbiculata while records of Porphyra umbilicalis, Pyropia vietnamensis, Wildemania variegata, and the invalid name Porphyra crispata have been omitted from the list. Currently, there are only two confirmed species of foliose Bangiales in the Philippines, which are Pyropia acanthophora and Pyropia tanegashimensis. Thus, this review exhorts a re-examination of collected Philippine foliose Bangiales materials using both morphological and molecular analysis.

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DUMILAG, RICHARD V., ZAE-ZAE A. AGUINALDO, CYNTHIA B. MINTU, MYRNA P. QUINTO, EVELYN C. AME, ROLANDO C. ANDRES, WILBERTO D. MONOTILLA, and SANDRA L. YAP. "Morphological and molecular confirmation of the occurrence of Pyropia tanegashimensis (Bangiales, Rhodophyta) from Palaui Is., Sta. Ana, Cagayan, Philippines." Phytotaxa 255, no. 1 (April 5, 2016): 83. http://dx.doi.org/10.11646/phytotaxa.255.1.8.

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The known morphological features in identifying common species of foliose Bangiales (e.g., members of Pyropia and Porphyra), which are very few and often overlapping, are recently resolved using comparative analysis of DNA sequences and statistics. Records of foliose Bangiales in the Philippines were historically identified based on morphology. Considering the recent radical changes in the taxonomy among these rhodophytes and problems posed by morphology-based identification, taxonomic re-appraisal of Philippine foliose Bangiales based on critical morphological and molecular studies is needed. This study used plastid rbcL and mitochondrial COI-5P gene sequences to investigate the identity of foliose Bangiales collected in Palaui Is., Sta. Ana, Cagayan, Philippines. Observation of key phenotypes revealed the identity of the collected materials as Py. tanegashimensis. Resulting phylogenetic trees showed placement of our collected specimens into a highly supported Py. tanegashimensis clade from Japan and Brazil. Our molecular analysis also suggested that the Philippine Py. tanegashimensis includes endemic populations distinct from the introduced strain originally reported from Brazil.

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Dumilag, Richard V., and Sandra L. Yap. "Pyropia lunae sp. nov. and Pyropia islae sp. nov. (Bangiales, Rhodophyta) from the Philippines." Botanica Marina 61, no. 5 (September 25, 2018): 467–80. http://dx.doi.org/10.1515/bot-2018-0024.

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AbstractChallenges in morphology come to bear when assigning specific names in foliose Bangiales. Recent studies suggest that the integration of molecular and phenotypic data is essential, particularly in setting species boundaries and revealing the true species diversity of a given area. In an attempt to further elucidate the diversity of foliose Bangiales in the Philippines, two new species,Pyropia lunaesp. nov. andPyropia islaesp. nov. are described. Each species differs from other closely related taxa by a combination of morphological and anatomical characters, and nucleotide sequences. Phylogenetic reconstruction based onrbcL gene sequences supports the sister relationship ofP. lunaeandPyropia acanthophora, whereasP. islaeis recovered as a species allied toPyropia tanegashimensisandPyropia denticulata. These two previously undescribed species increase the number of confirmed PhilippinePyropiaspecies to four. So far,P. lunaeandP. islaeare found only from the Batanes Islands whileP. acanthophoraandP. tanegashimensisare known to extend their native distributions across into the Indo-Pacific waters. Questions remain, however, with regard to the true species diversity of foliose Bangiales in the Philippines. A wider sampling effort and the application of molecular methods will make it possible to resolve the remaining gaps in the taxonomy of Philippine foliose Bangiales.

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Kumar, C. Anil, and M. V. N. Panikkar. "Indian species ofPorphyra (Rhodophyceae, Bangiales)." Feddes Repertorium 108, no. 5-6 (August 1997): 419–23. http://dx.doi.org/10.1002/fedr.4921080516.

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Kumar, C. Anil, and M. V. N. Panikkar. "Indian species of Porphyra (Rhodophyceae, Bangiales)." Feddes Repertorium 108, no. 5-6 (April 18, 2008): 419–23. http://dx.doi.org/10.1002/fedr.19971080516.

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Kornmann, P., and P. H. Sahling. "ThePorphyra species of Helgoland (Bangiales, Rhodophyta)." Helgoländer Meeresuntersuchungen 45, no. 1-2 (March 1991): 1–38. http://dx.doi.org/10.1007/bf02365634.

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Koizumi, Jiro, Naoki Takatani, Noritoki Kobayashi, Koji Mikami, Kazuo Miyashita, Yumiko Yamano, Akimori Wada, Takashi Maoka, and Masashi Hosokawa. "Carotenoid Profiling of a Red Seaweed Pyropia yezoensis: Insights into Biosynthetic Pathways in the Order Bangiales." Marine Drugs 16, no. 11 (November 1, 2018): 426. http://dx.doi.org/10.3390/md16110426.

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Carotenoids are natural pigments that contribute to light harvesting and photo-protection in photosynthetic organisms. In this study, we analyzed the carotenoid profiles, including mono-hydroxy and epoxy-carotenoids, in the economically valuable red seaweed Pyropia yezoensis, to clarify the detailed biosynthetic and metabolic pathways in the order Bangiales. P. yezoensis contained lutein, zeaxanthin, α-carotene, and β-carotene, as major carotenoids in both the thallus and conchocelis stages. Monohydroxy intermediate carotenoids for the synthesis of lutein with an ε-ring from α-carotene, α-cryptoxanthin (β,ε-caroten-3’-ol), and zeinoxanthin (β,ε-caroten-3-ol) were identified. In addition, β-cryptoxanthin, an intermediate in zeaxanthin synthesis from β-carotene, was also detected. We also identified lutein-5,6-epoxide and antheraxanthin, which are metabolic products of epoxy conversion from lutein and zeaxanthin, respectively, by LC-MS and 1H-NMR. This is the first report of monohydroxy-carotenoids with an ε-ring and 5,6-epoxy-carotenoids in Bangiales. These results provide new insights into the biosynthetic and metabolic pathways of carotenoids in red seaweeds.

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Zou, Dinghui, and Kunshan Gao. "Photosynthetic bicarbonate utilization inPorphyra haitanensis (Bangiales, Rhodophyta)." Chinese Science Bulletin 47, no. 19 (October 2002): 1629–33. http://dx.doi.org/10.1007/bf03184112.

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Lindstrom, Sandra C., Mandy R. Lindeberg, and Daniel A. Guthrie. "Marine macroalgae of the Aleutian Islands: I. Bangiales." ALGAE 30, no. 4 (December 15, 2015): 247–63. http://dx.doi.org/10.4490/algae.2015.30.4.247.

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Kikuchi, Norio, Shogo Arai, Goro Yoshida, Jong-Ahm Shin, Judy E. Broom, Wendy A. Nelson, and Masahiko Miyata. "Porphyra migitae sp. nov. (Bangiales, Rhodophyta) from Japan." Phycologia 49, no. 4 (July 2010): 345–54. http://dx.doi.org/10.2216/09-82.1.

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Dissertations / Theses on the topic "Bangiales"

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McGregor, Bruce Jonathan. "Aspects of the biology of Porphyra (Bangiales, rhodophyta) of the Isle of Man." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317182.

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Reddy, Mageshnee Mayshree. "Taxonomy and systematics of the Bangiales (Rhodophyta) in South Africa using an integrative approach." Doctoral thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29434.

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The Bangiales is a globally distributed red algal order that is best known for its economic value in the nori industry. The morphological simplicity of the Bangiales offers limited distinguishing characters for taxonomy and the order was therefore broadly classified into two genera based on morphology: the bladed Porphyra and filamentous Bangia. However, in 2011, a taxonomic revision of the Bangiales based on a two-gene phylogeny identified 15 genera. Since then, an additional bladed genus and numerous species have been added to the order. The Bangiales were first recorded in South Africa in 1843 when Porphyra capensis Kützing was described. Since then several changes have been made to the bangialean flora of South Africa with many new species discovered based on morphological identification. In 2004, a preliminary molecular assessment of Poprhyra along the South African coast revealed far greater species diversity than previously recorded. Following the taxonomic revision by Sutherland et al. (2011), some species from South Africa have been transferred to the genus Pyropia, others remain in Porphyra and many others have not yet been re-assessed. At present, three genera; the filamentous, Bangia and the bladed Porphyra and Pyropia have been recorded in South Africa, and comprise numerous species (based on morphology) and molecular entities. In the present study a comprehensive collection of newly collected and herbarium specimens (collectively ca. 300 specimens from ca. 50 sites) of the Bangiales from South Africa was analysed. A total of 241 sequences were generated for three unlinked loci (nSSU, rbcL & cox1). Taxa were identified or delimited via an integrative taxonomic approach using molecular, morpho-anatomical and ecological data. Species were delimited using three DNA-based species delimitation methods (ABGD, GMYC, PTP) applied to the mitochondrial gene cox1 (n=203) and the plastid gene rbcL (n=80). A multigene phylogeny was also constructed (nSSU, rbcL & cox1) and used to delimit species. Subsequent morpho-anatomical analyses complemented with ecological data and herbarium specimens (South Africa and Namibia) showed that 16 species in three genera (11 Porphyra, four Pyropia and one Bangia) are present along the South African coast. Morpho-anatomical characters of two species with uncertain taxonomic status were consistent with the descriptions of two widespread species, Bangia cf. fuscopurpurea and Py. cf. suborbiculata but remain to be confirmed using a molecular approach. In addition, two new species, Pyropia meridionalis sp. nov. and Porphyra agulhensis sp. nov. were described. Pyropia meridionalis is a kelp-associated species that is commonly found on the kelp limpet, Cymbula compressa, or on the stipes of Ecklonia maxima, and rarely on other species of southern African kelp, Laminaria pallida and E. radiata or other algae. This species occurs along the southwest and west coast of South Africa throughout the year, but may extend to Namibia. Pyropia meridionalis was shown to be previously misidentified as Py. gardneri in South Africa. This species was not closely related to other southern African endemic species of Pyropia, suggesting that species colonized and spread along this coastline independently. Nevertheless, most species shared close genetic affinities to other Southern Hemisphere taxa. This supports the notion of historic connectivity in the Southern Ocean proposed for red algae. Porphyra agulhensis is characterized by delicate laciniate rosette blades and a distinct greenish to pale pinkish-purple colour. This species was shown to be historically misidentified as P. capensis and is restricted to the Agulhas Marine Province on the south coast of South Africa. It includes one cryptic species (RSAj). The remaining eight molecular species of Porphyra formed a monophyletic group and occurred along the Benguela Marine Province on the west coast of South Africa. No single morpho-anatomical or ecological character could distinguish between these molecular species. Despite overlapping conventional morpho-anatomical or ecological characters among cryptic species, all features were within the range of the current description of P. capensis and were therefore referred to as the P. capensis cryptic species complex (PCC). High genetic diversity and several major lineages were identified in the PCC along the Benguela Marine Province. Conversely, the Porphyra agulhensis cryptic species duo along the Agulhas Marine Province presented low levels of genetic variation with ca. 70% of individuals belonging to a single haplotype group. Genetic diversity within Porphyra in South Africa was higher on the west coast of South Africa than on the south coast and the region between Cape Agulhas and Cape Point was identified as a region of major biogeographic change. Historic and contemporary processes, which likely shape present-day genetic patterns in South African Porphyra, are discussed. Similar to Pyropia, species of Porphyra from South Africa shared a close phylogenetic affinity with some Chilean bladed Bangiales, providing further support for historic connectivity in these red algae in the Southern Ocean. South Africa is now home to the second highest number of species of Porphyra in the world and shares three species of Pyropia with Namibia (based on morphological identification). All species identified using molecular sequences appear to be endemic to South Africa or southern Africa. The extensive genetic diversity found along the South African coast compares well with other Southern Hemisphere countries, such as Chile and New Zealand. The Southern Hemisphere has been suggested as the origin and centre of diversity for the Bangiales, but still remains relatively unexplored, and further investigations are likely to yield further species and species links.

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Oliveira, Mariana Cabral de. "Filogenia de Porphyra spp. (Rhodophyta): sequenciamento do gene nuclear para o RNA da subunidade pequena do ribossomo (rDNA 18S) e estudos morfológicos da fase Conchocelis." Universidade de São Paulo, 1993. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-09082016-164600/.

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O gênero Porphyra (Rhodophyta) apresenta uma considerável importância econômica, sendo extensivamente cultivado e consumido como alimento. O gênero é representado por mais de 70 espécies e apresenta ampla distribuição geográfica, desde regiões tropicais até polares. Sua taxonomia, baseada em poucos caracteres da fase macroscópica do seu ciclo de vida, é ainda bastante problemática. Para tentar entender melhor a taxonomia e a história evolutiva de Porphyra foram utilizadas metodologias de biologia molecular e características da fase conchocelis do ciclo de vida. Verificou-se que caracteres da fase microscópica podem ser utilizados para complementar os conhecimentos taxonômicos tradicionais. Para tentar elucidar a posição filogenética do gênero Porphyra na divisão Rhodophyta e, dentro do gênero, entre espécies do Atlântico, o gene nuclear que codifica para o RNA ribossomal da subunidade pequena do ribossomo (rDNA 18S) foi amplificado através de PCR, clonado e completamente sequenciado. Foram utilizadas três espécies de Porphyra da Nova Escócia (Canadá) e duas de São Paulo (Brasil). As sequências obtidas foram alinhadas com as de alguns eucariontes e de outras algas vermelhas, incluindo uma sequência publicada de \"Porphyra umbilicalis\" da França. As árvores filogenéticas foram construídas através dos métodos de parcimônia, distancia e máxima verossimilhança. As analises mostraram que o gênero Porphyra é monofilético para as cinco espécies estudadas e constitui um dos ramos mais antigos dentro das algas vermelhas já analisados. O gênero Porphyra, subclasse Bangiophycidae, apresentou uma diferença substancial em relação aos gêneros da subclasse Florrideophycidae, sustentando assim, a divisão de Rhodophyta em duas subclasses pela taxonomia tradicional. Entre os eucariontes, Porphyra divergiu ao mesmo tempo que o nuclemorfo de Cryptomonas. O alto grau de divergência genética encontrada entre espécies de Porphyra, além de indicações do registo fóssil, na literatura, sugerem que o gênero é bastante primitivo dentro das algas vermelhas. Surpreendentemente, a sequência publicada para \"Porphyra umbilicalis\" apresentou mais de 99% de identidade com uma espécie de Palmaria que pertence à subclasse Florideophycidae; neste caso, a biologia molecular serviu para comprovar a identificação errônea do exemplar cuja sequência foi publicada. Durante a análise filogenética, verificou-se a ocorrência de um intron do grupo ICI nos genes rDNA 18S de Porphyra spiralis var. amplifolia. Esse intron ocorre na mesma posição que os introns do grupo IC1 nos rDNA 18S dos fungos Pneumocystis carinii, Protomyces inouyei e da alga verde Chlorella ellipsoidea, e apresenta identidade de sequências nos domínios P1 e P2, fora da região conservada, com o intron de Pn. Carinii. Três variantes, diferindo do tamanho da seqüencia do domínio P1, foram observados em três populações com distribuição geográfica diferente. O variante maior pode se auto-processar (\"self-splice\") in vitro. Quadros abertos de leitura estão presentes nos introns, mas não correspondem a nenhum gene conhecido. Introns estão presentes no rDNA 18S de outras espécies de Porphyra, que também podem apresentar variantes do rDNA 18S sem introns
The red algas genus Porphyra has considerable economic importance, and some species are extensively cultivated for human food. The genus is represented by more than 70 species, and occurs worldwide. Its taxonomy, based mainly on morphological characters of the macroscopic phase of its life-cycle is still unsettled. Alternatives to try to understand better the taxonomy and evolutive history of the genus were ascertained. It was verified that characters of the microscopic, filamentous phase, of the life-cycle of Porphyra may be used to complement the traditional taxonomic studies. To try to elucidate the phylogenetic position of Porphyra relative to the other red algae, and within the genus, among isolates from different locations, nuclear-encoded small-subunit ribosomal RNA genes (18S rDNAs) were PCR-amplified, cloned and completely sequenced. Three species of Porphyra from Nova Scotia and two species from Brasil were aligned with 18S sequences of other eukaryotes, including one published sequence of \"Porphyra umbilicalis\" from France. Phylogenetic trees were constructed by parsimony, distance and maximum-likelihood procedures. Analysis of our data revealed that these Porphyra species represented one of the deepest branches so far discovered within red algae. There was a great degree of primary sequence difference between Porphyra (subclass Bangiophycidae), and the other red algae belonging to the subclasses Florideophycidae. These results support the division of red algae into two subclasses by traditional taxonomy. Among eukaryotes Porphyra diverges at the same point as the Cryptomonas nucleomorph. The great among of sequence divergence, and the fossil record suggest that Porphyra, my indeed, be a very primitive red alga. Surprisingly, the 18S RNA sequence of the French \"Porphyra umbilicalis\" does not fit in our Porphyra category; instead, it has more than 99% identity with a species of Palmaria belonging to the subclass Florideophycidae. Therefore it was concluded that \"P. umbilicalis\" with the published sequence was actually a Palmaria palmate that was misidentified. During the phylogenetic analysis it was found that a group IC1 intron occurs in nuclear 18S rRNA genes of Porphyra spiralis var. amplifolia. This intron occurs at the same position of the group IC1 introns in 18S rDNAs of the fungus Pneumocystis carinii, Protomyces inouyei and the green alga Chlorella ellipsoidea, and shares primary-structural identity with the Pn. Carinii intron in domains P1 and P2, outside the conserved core. Three size-variants, differing in amount of optimal sequence in P1, exist and are differentially distributed in geographically distinct populations. The largest variant can self-splice in vitro. Open reading frames are present, but do correspond to known genes. Introns are present in the 18S rDNAs of several other Porphyra species, that may also have intronless rDNA copies

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Müller, Kirsten Marianne. "Biogeography and systematic status of the genus Bangia, within the order Bangiales and subclass Bangiophycideae." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0005/NQ43268.pdf.

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Dlaza, Thembinkosi Steven. "Development in culture, ecophysiology and nutritional content of three South African Porphyra (Rhodophyta, Bangiales) species." Doctoral thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10425.

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The first aim of this study was therefore to study the reproductive biology and phenology of three common Porphyra species (Porphyra aeodis Griffin, Bolton et Anderson 1999, Porphyra capensis Katzing 1843 and Porphyra saldanhae Stegenga, Bolton et Anderson 1997), which occur on the west coast of South Africa. The second aim of the study was to investigate, in culture, the ecophysiological responses of the different phases of the life histories of these threes species to various environmental variables. The third aim of this study was to quantify some important aspects of the nutritional composition of these three species and to investigate seasonal variations in these nutrients.

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Holmes, Mary Jane. "Phenology and observations on the morphology, cytology and life history of species of Porphyra (Bangiales, Rhodophyta) from Britain." Thesis, Bath Spa University, 2004. http://researchspace.bathspa.ac.uk/1451/.

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Tala, Fadia. "Fenologia e ecofisiologia das macroalgas Porphyra spp. (Bangiales, Rhodophyta) e Lessonia spp. (Laminariales, Phaeophyceae) na costa norte e central do Chile: variações latitudinais e sazonais." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/41/41132/tde-31032014-110235/.

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O propósito dos estudos fenológicos é descrever e compreender como o desenvolvimento dos organismos ocorre em resposta às variações ambientais que mudam ciclicamente e como certos fatores estimulam a geração de uma cascata de sinais e reações que abrangem desde mudanças moleculares, bioquímicas e fisiológicas, os que acabam se manifestando como padrões anuais de abundância e reprodução. As mudanças ambientais ocorrem em escalas temporais (diárias, sazonais, interanuais) e espaciais (latitudinal, em profundidade, em altitude) e têm um forte impacto no crescimento e desenvolvimento das espécies, em especial de aquelas com características sésseis. O objetivo deste estudo foi caracterizar os padrões fenológicos (sazonais e latitudinais) de abundância, reprodução, fotossíntese e capacidade antioxidante de dois gêneros de macroalgas de importância ecológica e econômica, Porphyra spp. (rodofícea) e Lessonia spp. (feofícea), distribuídas ao longo da costa norte e centro (25° - 34°S) do Chile. Os resultados mostram que variações sazonais de radiação e latitudinais de temperatura influenciam significativamente as respostas fenológicas e ecofisiológicas das espécies estudadas. No caso de Porphyra spp., o ajuste temporal mais notório envolve um desenvolvimento fenológico anual para a população do norte e perene para as do centro e sul. As características fisiológicas mostraram diminuição na eficiência fotossintetizante, pigmentos (clorofila α, carotenoides e ficobiliproteínas) e proteínas solúveis em primavera-verão, acompanhados por aumento da capacidade antioxidante. No caso de Lessonia e embora a abundância não tenha mostrado uma mudança sazonal nas populações, o ajuste temporal mais notório aconteceu nas características fisiológicas, com diminuição na eficiência fotossintetizante, pigmentos (clorofilas α e c, carotenoides), fenois e capacidade antioxidante durante o verão, acompanhado por aumento na absorptância do talo, ETRmax e NPQ. Estudos sobre as identidades taxonômicas das populações de Porphyra são necessários para distinguir entre possíveis padrões devido à caraterísticas da espécie de possíveis variações morfológicas ou ecotípicas. Estudos das espécies de Lessonia próximas aos seus limites de distribuição biogeográfica poderiam elucidar se as diferenças fenológicas e fisiológicas são devido a padrões dependentes das espécies ou são mascaradas por características ambientais locais. Os estudos fenológicos e as mudanças em nível bioquímico/fisiológico podem subsidiar novos destinos da biomassa produzida ou da matéria prima proveniente de organismos de importância econômica. Além disso, alterações nos padrões fenológicos e ecofisiológicos típicos podem direcionar a compreensão sobre os impactos de câmbios ambientais tais como os câmbios climáticos globais, contaminação e poluição, sobrexploração e as interações e dinâmica entre as populações
The purpose of phenological studies is to describe and understand how the development of the organisms occurs in response to environmental variations which change cyclically and how certain factors stimulate the generation of signals and a cascade of reactions from molecular, biochemical and physiological levels, which at the end manifests annual patterns of abundance and reproduction. Environmental changes occur in time scale (daily, seasonal, interannual) and spatial scale (latitudinal, depth, altitude) and have a strong impact on growth and development of the species, especially those with sessile characteristics. The purpose of this study was to characterize the phenology (seasonal and latitudinal) of abundance, reproduction, photosynthesis and antioxidant capacity of two macroalgae with ecological and economic importance, Porphyra spp. (Rhodophyta) and Lessonia spp. (Phaeophyceae), distributed along the coast north and center (25° - 34°S) in Chile. The results show that seasonal changes in radiation and latitudinal temperature significantly influence the phenological and ecophysiological responses of the species studied. For Porphyra spp., the most notorious temporal adjustment involves an annual phenological development from north population in contrast to perennial populations from central and south. The physiological characteristics showed decrease in photosynthetic efficiency, pigments (chlorophyll a, carotenoids and phycobiliproteins) and soluble proteins in spring-summer, accompanied by increasing in antioxidant capacity. For Lessonia spp., although the abundance showed no seasonal changes between the populations, the most notoriously temporal adjustment occurs in physiological characteristics with decrease in photosynthetic efficiency, pigments (chlorophylls a and c, carotenoids), phenols and antioxidant capacity during the summer, followed by increase in thallus absorptance, ETRmax and NPQ. Studies on the taxonomic identity of Porphyra populations are required to distinguish between possible characteristics due to species-specific patterns from morphological or ecotypes variations. Studies in the species Lessonia near their limits of biogeographical distribution could elucidate whether the phenological and physiological differences are due to patterns species-specific or are masked by local environmental characteristics. The phenological studies and changes in the biochemical/physiological levels can subsidize new destination of biomass production and raw material from organisms economically important. Moreover, changes in typical phenological and ecophysiological patterns can give a light about environmental impacts of alterations such as global climate changes, contamination and pollution, overexploitation and interactions and dynamics between populations.

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Lynch, Michael. "Characterizing the phylogenetic distribution of cryptic species in the Rhodophyta using novel gene sequence analysis and molecular morphometrics." Thesis, 2011. http://hdl.handle.net/10012/5943.

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The Rhodophyta (red algae) are an ancient crown group of the Eukarya (ca. 1400-1500 million years), comprised of 5000 - 6000 species. Gametophytes of taxa excluding the speciose Class Florideophyceae are typically of very simple unicellular, filamentous or foliose morphologies. These simple morphologies are often homoplasious (resulting from convergent or parallel evolution) and can be indistinguishable among distinct taxa, leading to cryptic species. As a result, historical morphology-based taxonomy is often not congruent with evolutionary history. Intraspecific genetic variation is not yet characterized for non-Florideophyceae taxa. Here the intraspecific genetic variation was characterized for a locally endemic, morphologically distinct bangiophyte red alga, Bangia maxima Gardner using inter simple sequence repeat (ISSR) patterns from 91 individual filaments across seven local populations. A high degree of genetic variation was observed over very small distances (< 25 cm) and very little genetic exchange was observed between populations. It is possible that B. maxima is a true endemic species and its population dynamics may differ from other Bangia species. Metrics of sequence-based identification rely on genetic divergence among isolates to distinguish taxonomic units independent of morphology. Such metrics are especially useful for morphologically simple or cryptic species. The mitochondrial cytochrome oxidase c subunit 1 gene has been proposed for the Florideophyceae. An evaluation of this gene as a metric for non-Florideophyceae taxa was undertaken and limited utility was demonstrated in most lineages of Rhodophyta due to poor or inconsistent amplification and conflicts with nuclear and plastid phylogenies. Patterns of genetic divergence among taxa are used to infer evolutionary relationships. The nuclear ribosomal small subunit (nSSU rRNA) is the taxonomically broadest pool of gene sequence data for the Rhodophyta. The use of stochastic models of nucleotide evolution is the most common approach to inferring phylogenies using this gene, ignoring much of its evolutionary information as different characters that contribute to secondary structure (e.g. paired nucleotides) are treated independently. The incorporation of structural information leads to more biologically realistic evolutionary models increasing phylogenetic resolution. Parametric models incorporating structural information were used here to more fully resolve phylogenies for all known Rhodophyta lineages. Novel phylogenetic topologies were observed and well supported for each Class within the Rhodophyta resulting in a number of formally proposed or suggested taxonomic revisions. These include phylogenetic resolution of Rhodophyta Classes, support for the introduction of 11 genera within the Bangiales and support for various taxonomic revisions within the Florideophyceae previously proposed but not yet fully adopted. As structure evolves more slowly than its constituent sequence, secondary structure elements can further resolve evolutionary relationships, especially in lineages as old as the Rhodophyta. A novel encoding of secondary structure elements and subsequent multivariate analysis was performed for all known Rhodophyta nSSU rRNA gene sequences, reinforcing phylogenetic results. Computer programs developed for these analyses are publicly available. The analyses presented here significantly advanced understanding of the evolutionary distribution of cryptic species within the Rhodophyta. Furthermore, useful methods for the characterization of such species are presented, as is a demonstration of the utility of biologically realistic sequence models parameterizing nSSU rRNA structure in resolving ambiguous phylogenetic relationships. Most importantly, this work also represents a significant improvement toward taxonomy congruent with evolutionary history for the Rhodophyta.

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Book chapters on the topic "Bangiales"

1

Candia, A., S. Lindstrom, and E. Reyes. "Porphyra sp. (Bangiales, Rhodophyta): reproduction and life form." In Sixteenth International Seaweed Symposium, 115–19. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4449-0_13.

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2

Fujita, Yuji, and Munehisa Saito. "Protoplast isolation and fusion in Porphyra (Bangiales, Rhodophyta)." In Thirteenth International Seaweed Symposium, 161–66. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2049-1_22.

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3

Queiroz, Kevin de, Philip D. Cantino, and Jacques A. Gauthier. "Bangiales Nägeli 1847 [G. W. Saunders], converted clade name." In Phylonyms, 161–62. Boca Raton : CRC Press, [2019]: CRC Press, 2020. http://dx.doi.org/10.1201/9780429446276-34.

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4

Hwang, Mi Sook, Jin Koo Kim, Doo Saing Sim, Yoon Sik Oh, and Han Gu Choi. "Growth and Reproduction of Porphyra Kuniedae Kurogi (Bangiales, Rhodophyta) from Korea." In Key Engineering Materials, 569–76. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-958-x.569.

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5

Notoya, Masahiro, and Akinori Miyashita. "Life history, in culture, of the obligate epiphyte Porphyra moriensis (Bangiales, Rhodophyta)." In Sixteenth International Seaweed Symposium, 121–25. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4449-0_14.

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6

Shin, Jong-ahm, and Akio Miura. "Estimation of the degree of self-fertilization in Porphyra yezoensis (Bangiales, Rhodophyta)." In Thirteenth International Seaweed Symposium, 397–400. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2049-1_56.

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7

Griffin, N. J., J. J. Bolton, and R. J. Anderson. "The effects of a simulated harvest on Porphyra (Bangiales, Rhodophyta) in South Africa." In Sixteenth International Seaweed Symposium, 183–89. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4449-0_21.

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8

Waaland, J. Robert, Leal G. Dickson, and Ellen C. S. Duffield. "Conchospore production and seasonal occurrence of some Porphyra species (Bangiales, Rhodophyta) in Washington State." In Thirteenth International Seaweed Symposium, 453–59. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2049-1_64.

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9

Nam-Gil, Kim. "Culture studies of Porphyra dentata and P. pseudolinearis (Bangiales, Rhodophyta), two dioecious species from Korea." In Sixteenth International Seaweed Symposium, 127–35. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4449-0_15.

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10

Yan, Xing-Hong, Yuji Fujita, and Yusho Aruga. "High monospore-producing mutants obtained by treatment with MNNG in Porphyra yezoensis Ueda (Bangiales, Rhodophyta)." In Asian Pacific Phycology in the 21st Century: Prospects and Challenges, 133–40. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-94-007-0944-7_17.

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