Data/hora: 19/06/2024 21:49:34

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)	
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