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| Pereira,Marlon Corrêa; Rocha,Diego Ismael; Veloso,Tomás Gomes Reis; Pereira,Olinto Liparini; Francino,Dayana Maria Teodoro; Meira,Renata Maria Strozi Alves; Kasuya,Maria Catarina Megumi. |
| Cyrtopodium glutiniferum is an endemic orchid of Brazil with potential medicinal and ornamental applications. As mycorrhizal fungi are essential for the initiation of the orchid life cycle, the aim of this study was to determine the strains of mycorrhizal fungi suitable for seed germination and protocorm development of C. glutiniferum and to characterize the symbiotic development of protocorms. Seeds of C. glutiniferum were inoculated with nine mycorrhizal fungi, Epulorhiza spp., Ceratorhiza spp., Rhizoctonia sp., originally isolated from Brazilian neotropical orchids. Only Epulorhiza isolates promoted seed germination and protocorm development. Three Epulorhiza isolates (M1, M6 = E. epiphytica, M20 = Epulorhiza sp.) promoted protocorm development until... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ceratorhiza; Epulorhiza; Orchid conservation; Seedling production; Symbiosis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400567 |
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| Pita-Barbosa,Alice; Sant'Anna-Santos,Bruno Francisco; Silva,Kellen Lagares Ferreira; Azevedo,Aristéa Alves; Rocha,Diego Ismael. |
| Visando avaliar os efeitos do fluoreto sobre capim-braquiária, plantas de Brachiaria brizantha e B. decumbens foram submetidas a nevoeiros simulados com fluoreto (10 µg ml-1). Amostras foliares de porções aparentemente sadias foram coletadas 24 horas após a última exposição para análises microscópicas. Folhas, raízes e rizomas foram submetidos à quantificação do teor de fluoreto. As folhas apresentaram necroses pequenas e esparsas. Somente as folhas acumularam fluoreto, apresentando teores 4,4 e 5,2 vezes maiores que no tratamento controle, em B. brizantha e B. decumbens, respectivamente, não havendo diferença no potencial acumulador das duas espécies. As principais alterações micromorfológicas observadas foram lesões próximas aos tricomas, sugerindo que... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomia vegetal; Capim-braquiária; Necrose. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000400012 |
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| Carvalho,Paula Pinheiro de; Antoniazzi,Camila Aparecida; Faria,Rodrigo Brito de; Carvalho,Ilio Fealho de; Rocha,Diego Ismael; Silva,Maurecilne Lemes da. |
| ABSTRACT The present study reports a shoot organogenesis-based system for in vitro regeneration of Passiflora miniata, an Amazonia passion fruit species. Root segments were cultured in Murashige and Skoog (MS) medium supplemented with different concentrations (range 2-9 µM) of 6-benzyladenine (BA); thidiazuron (TDZ) or kinetin (KIN). Plant growth regulators were not added to the control treatment. Root explants have showed a high regenerative potential. After 30 days of in vitro culture, the root explants showed several shoots formed direct and indirectly. TDZ provided the best response in the differentiation adventitious shoots, mainly in the presence of 6.8 µM. The cytokinins BA and KIN responded producing a reduced number of shoots. After 120 days,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphogenesis; Ornamental passion fruit; Plant regeneration; Root explant; Shoot organogenesis; Thidiazuron. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100406 |
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