Data/hora: 06/06/2024 04:44:24

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 09/01/2009
Data da última atualização: | 18/08/2016
Autoria: | MORAES, R. M.; MELO, I. S. de; JOSHI, V. C.; SUMYANTO, J.; SAMOYLENKO, V.; ILIAS, M.
Afiliação: | R. M. Moraes, University of Mississippi; ITAMAR SOARES DE MELO, CNPMA; V. C. Joshi, University of Mississippi; J. Sumyanto, University of Mississippi; V. Samoylenko, University of Mississippi; M. Ilias, University of Mississippi.
Título: | Identification of endophytic bactéria from micropropagated yacon (Smallanthus sonchifolius) crowing under autotrophic and Heterotrophic systems.
Ano de publicação: | 2008
Fonte/Imprenta: | In: Planta Médica, Dordrecht, v.74, n.3, p.323, 2008. Abstracts of the 7 th Annual Oxford International Conference on the Science of Botanicals & American Society of Pharmacognosy 4th Interim Meeting, Oxford, MS, 2008.
Idioma: | Inglês
Conteúdo: | Yacon, Smallanthus sonchifolius, an Andean species. is a rich source of dictetíc oligofructans with low glucose content. proteins and phenolic compounds. These constituents have shown efficacy in the prevention of diet-related ehronic diseases, including gastroin-testinal disorders and diabetes |1,2|. Yacon is part of a research program at the National Center for Natural Products Research (NCNPR) and University of Mississippi Field Station to develop new alternative root crops for Mississippi while attempting to im-prove the diet of low incorne families. Yacon can be easily propa-gated by cultings. Virus and nematode infections have been re-ported on plants propagated by cuttings in Brazil. a country that hás adopted Yacon as specialty crop [3|. We have developed two culture systems. autotrophic and heterotrophic, to produce healthy plants. Herem we describe the presence of endophytic bactéria m micropropagated Yacon. In auxin free media, new roots were induced. Overa 15day period. the average root mduction per expiam was 5.45 to 8.75 under autotrophic and heterotrophic cul-tures, respectively. Root lenglh vaned between 3 and 60mrn. The presence of root hairs and lateral roots was noticed only in auto-trophic condilions. These beneficiai bactéria were identified and chemically ctiaracterized. Acknowledgement: This research work was partially supported by the USDA/ARS Cooperative Research Agreement No. 58-6408-2-009. Referentes; |1) Terada S. et ai. (2006] Yakugaku Zasshi 126(8): 665-669. (2| Valentová K. Ulri-chová j. (2003) Biomedical Papers 147: 119-130. [3| Mogor C. et ai, (2003) Acta Horticulturea 597: 311 -313.
Palavras-Chave: | Autotrophic; Endophytic; Heterotrophic systems; Identification; Micropropagated.
Thesagro: | Bactéria.
Categoria do assunto: | V Taxonomia de Organismos
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/146524/1/2008RA-020.pdf
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (7939-1) - UPC - RA - DD -  -  - 2008RA_020 - DIS