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| Ceresini,Paulo C.; Costa-Souza,Elaine; Zala,Marcello; Furtado,Edson L.; Souza,Nilton L.. |
| The white-thread blight and black rot (WTBR) caused by basidiomycetous fungi of the genus Ceratobasidium is emerging as an important plant disease in Brazil, particularly for crop species in the Ericales such as persimmon (Diospyros kaki) and tea (Camellia sinensis). However, the species identity of the fungal pathogen associated with either of these hosts is still unclear. In this work, we used sequence variation in the internal transcribed spacer regions, including the 5.8S coding region of rDNA (ITS-5.8S rDNA), to determine the phylogenetic placement of the local white-thread-blight-associated populations of Ceratobasidium sp. from persimmon and tea, in relation to Ceratobasidium species already described world-wide. The two sister populations of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecological speciation; Fungal plant pathogens; Host specialization; Population divergence; Phylogenetics. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000300016 |
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| Guerrini,Iraê A.; Trigueiro,Rodrigo M.; Leite,Regina M.; Wilcken,Carlos F.; Velini,Edivaldo D.; Mori,Edson S.; Furtado,Edson L.; Marino,Celso L.; Maia,Ivan G.. |
| Abscisic acid (ABA) regulates stress responses in plants, and genomic tools can help us to understand the mechanisms involved in that process. FAPESP, a Brazilian research foundation, in association with four private forestry companies, has established the FORESTs database (<A HREF="https://forests.esalq.usp.br">https://forests.esalq.usp.br</A>). A search was carried out in the Eucalyptus expressed sequence tag database to find ESTs involved with 9-cis epoxycarotenoid dioxygenase (NCED), the regulatory enzyme for ABA biosynthesis, using the basic local BLAST alignment tool. We found four clusters (EGEZLV2206B11.g, EGJMWD2252H08.g, EGBFRT3107F10.g, and EGEQFB1200H10.g), which represent similar sequences of the gene that produces NCED. Data... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Eucalyptus EST; Abscisic acid; Water deficit; Drought resistance; NCED. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000400020 |
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