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Pellizzari,Franciane Maria; Bernardi,Juliane; Silva,Elzi Manoelle; Silva,Michelle Cristine; Yokoya,Nair S.. |
This study describes the diversity of benthic marine algae from insular areas of the southern Brazilian coast. Algal samples were collected between 2006 and 2010 during the winter and the summer seasons at three sites in the coastal waters of Paraná, Brazil: Ilha do Mel, Currais Archipelago and Ilha do Farol. The samples were collected along parallel transects on the coast. In this survey, Paraná marine phycoflora comprised 139 taxa (90 Rhodophyta, 27 Chlorophyta and 22 Phaeophyceae). Fifty-two species represent new records for the state, and 14 taxa are present at all sampling sites and in both seasons. Higher diversities of rhodophytes and chlorophytes were observed at Ilha do Mel, while phaeophytes were more diverse at Currais Archipelago. Lower algal... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seaweeds; Inventory; Paraná Coast; Southern Atlantic. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032014000200113 |
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Bravin,Isolda Cecília; Valentin,Yocie Yoneshigue; Yokoya,Nair S.. |
Culturas axênicas de Hypnea musciformis (Wulfen) Lamouroux foram estabelecidas em meio de Provasoli (PES) sólido com diferentes concentrações de ágar (0,4%, 0,6%, 0,8% e 1,0%) para avaliar o seu efeito na formação de calos e na regeneração de plantas. O cultivo em meio sólido induziu a formação de quatro tipos de calos (apical - CApi, lateral 1 - CLat1, lateral 2 - CLat2 e basal - CBas), os quais são constituídos internamente por proliferações unisseriadas pigmentadas. O tipo CApi foi o mais freqüente (taxa de 5,3 calos por explante em 1,0% de ágar). A maior biomassa das plântulas regeneradas (7,4 g) foi alcançada a partir de calos cultivados a 1,0% de ágar. A formação dos quatro tipos de calos é um dado inédito e indica que as diferentes concentrações de... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calos; Cultura axênica; Efeito do ágar; Hypnea musciformis; Rhodophyta. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042006000100015 |
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Horta,Paulo A.; Yokoya,Nair S.; Guimarães,Silvia M.P.B.; Bacci,Denise S.; Oliveira,Eurico C.. |
Hypoglossum hypoglossoides (Stackhouse) Collins & Hervey is reported for the first time from the infralittoral of São Paulo and Santa Catarina states. The species was already reported to the states of Rio de Janeiro, Espírito Santo and Bahia as Hypoglossum tenuifolium (Harvey) J. Agardh var. carolinianum Williams. A detailed description of the morphology and reproduction is given based on field-collected material. Unialgal cultures were initiated from tetraspore germination, and growth rates of gametophytes were determined under different conditions of temperature, photoperiod and irradiance. Gametophytes grew well between 15 to 30 ºC, 14L:10D and 10L:14D photoperiods and irradiance from 20 to 120 µmol photons.m-2.s-1, but presented low percentage... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Delesseriaceae; Development; Hypoglossum hypoglossoides; Reproduction; Rhodophyta. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000400004 |
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