Data/hora: 21/06/2024 22:16:48

Biblioteca(s): | Embrapa Café.
Data corrente: | 13/04/2011
Data da última atualização: | 13/04/2011
Autoria: | BUDZINSKI, I. G. F.; LEITE, T. F.; TAKAHASHI, E. K.; PEREIRA, L. F. P.; VIEIRA, L. G. E.
Afiliação: | IAPAR; IAPAR; ÁGUAS CLARAS BIOTECNOLOGIA LTDA.; LUIZ FILIPE PROTASIO PEREIRA, SAPC; IAPAR.
Título: | Coffea expansin gene family and expansin expression during fruit maturation.
Ano de publicação: | 2007
Fonte/Imprenta: | In:INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 21., 2006, Montpellier, France. Table of contents... Montpellier, France: Association for Science and Information on Coffee, 2007. 1 CD-ROM.
Idioma: | Inglês
Conteúdo: | Expansins (EXP) are plant cell-wall loosing proteins involved in cell enlargement and developmental process such as organogenesis, seeds germination, cell wall dissolution and fruit ripening. Two families of EXP are known, &#945;-expansin (EXPA), involved in the control of cell wall extension, and &#946;-expansins (EXPB), the major allergens of grass pollen that also have cell wall-loosening activity. With the objective to study the role of EXP in coffee fruit maturation we selected EXP homologous sequences on the Brazilian Coffee Genome Project database. Full-length contigs were classified according the EXP family. Northern blots of pulp from fruits at the latest stages of maturation (22-32 weeks after flowering) showed increased transcription of one contig (CaEXP1). This higher transcription corresponds with a climacteric burst, during the expansion of pulp, with a decline in ?cherry? fruits. The transcription of CaEXP1 was also observed in roots, shoots, flower and flower buds, but not in leaves.
Palavras-Chave: | Oganogenesis.
Thesaurus Nal: | Coffea.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/32598/1/Coffea-Expansin-Gene.pdf
Registro original: | Embrapa Café (CNPCa)
Exemplares: | CNPCa - (196-1) - UPC - AA - DD -  -  -  - DIS