Buscar

 

RI UFLA (Universidade Federal de Lavras) >
DBI - Departamento de Biologia >
DBI - Artigos publicados em periódicos >

Por favor, utilize esse identificador para citar este item ou usar como link: http://repositorio.ufla.br/jspui/handle/1/12299

Título: Effects of 60 Hz sinusoidal magnetic field on in vitro establishment, multiplication, and acclimatization phases of Coffea arabica seedlings.
Autor(es): Alemán, Elizabeth Isaac
Moreira, Rafael Oliveira
Lima, Andre Almeida
Silva, Samuel Chaves
González-Olmedo, J. L.
Chalfun-Junior, A.
Assunto: 60 Hz magnetic field
Magnetic fields
RBCS1
Coffee seedlings
Net photosynthesis
Publicador: Bioelectromagnetics Society
Data de publicação: Set-2014
Referência: ALÉMAN, E. I. et al. Effects of 60 Hz sinusoidal magnetic field on in vitro establishment, multiplication, and acclimatization phases of Coffea arabica seedlings. Bioelectromagnetics, Gaithersburg, v. 35, n. 6, p. 414-425, 2014.
Abstract: The influence of extremely low frequency electromagnetic fields on net photosynthesis, transpiration, photosynthetic pigment concentration, and gene expression of ribulose 1,5-bisphosphate carboxylase/oxygenase small subunit (RBCS1), during in vitro establishment, in vitro multiplication and acclimatization phases of coffee seedlings were investigated. Untreated coffee plants were considered as control, whereas treated plants were exposed to a 60 Hz sinusoidal magnetic field of 2 mT of magnetic induction during 3 min. This magnetic field was generated by an electromagnet, connected to a wave generator. The results revealed that magnetically treated plants showed a significant increase in net photosynthesis (85.4% and 117.9%, in multiplication and acclimatization phases, respectively), and in photosynthetic pigment concentration (66.6% for establishment phase, 79.9% for multiplication phase, and 43.8% for acclimatization phase). They also showed a differential RBCS1 gene expression (approximately twofold) and a decrease of transpiration rates in regard to their control plants. In conclusion, the findings suggest that the application of 60 Hz magnetic field to in vitro coffee plants may improve the seedlings quality by modifying some photosynthetic physiological and molecular processes, increasing their vigor, and ensuring better plant development in later stages.
URI: http://onlinelibrary.wiley.com/doi/10.1002/bem.21859/abstract
http://repositorio.ufla.br/jspui/handle/1/12299
Idioma: en_US
Aparece nas coleções: DBI - Artigos publicados em periódicos

Arquivos neste Item:

Não há arquivos associados para este Item.

Itens protegidos por copyright, com todos os direitos reservados, Salvo indicação em contrário.


Mostrar estatísticas

 


DSpace Software Copyright © 2002-2007 MIT and Hewlett-Packard - Feedback