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| SANTANA,Marcos Diones Ferreira; VARGAS-ISLA,Ruby; NOGUEIRA,Janaina da Costa; ACCIOLY,Thiago; SILVA,Bianca Denise Barbosa da; COUCEIRO,Sheyla Regina Marques; BASEIA,Iuri Goulart; ISHIKAWA,Noemia Kazue. |
| ABSTRACT The high diversity of the genus Geastrum and the difficulty of obtaining mycelial cultures impairs the study of the ecophysiology and the exploration of the biotechnological potential of the taxon. In this study, different culture media were tested to obtain mycelial cultures for G. lloydianum and G. subiculosum collected in the Brazilian Amazon. Data on spore germination, and isolation of monokaryotic cultures and in vitro sexual reproduction are presented, as well as a brief morphological description of the cultures obtained. For both species, Potato Dextrose Agar (PDA) was the most promising of the tested culture media. The highest growth in agar culture ever recorded for this genus is reported (4.9 mm per week for G. lloydianum and 7.5 mm for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Earthstars; Gasteroid fungus; Geastrum lloydianum; Geastrum subiculosum; Mycelial growth. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100061 |
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| MIYAHIRA,Igor Christo; MANSUR,Maria Cristina Dreher; PIMPÃO,Daniel Mansur; COUCEIRO,Sheyla Regina Marques; SANTOS,Sonia Barbosa dos. |
| ABSTRACT Diplodon granosus was one of the first freshwater mussels to be described for South America. However, the status of the species was confusing for a long time, receiving different taxonomic treatments. In this paper, we redescribe the shell, with new data on the soft parts and information on the distribution and conservation of D. granosus, a rarely recorded species. The shell is thin, not inflated; the macrosculpture is composed only by granules that cover the whole shell, not forming bars; the microsculpture comprises short spikes. In the soft parts we highlight the few, weak and irregularly distributed lamellar connections of the outer demibranch and some features of the stomach, such as the distally enlarged minor typhlosole. There are records... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Unionida; Hyriidae; Rhipididontini; Taxonomy; Conservation. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100044 |
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