Data/hora: 10/06/2024 15:08:39

Provedor de dados: 	61	
País: 	Brazil	
Título: 	Foliar application of Burkholderia sp. strain TNAU-1 leads to activation of defense responses in chilli (Capsicum annuum L.)	
Autores: 	Madhavan,Srinivasan; Paranidharan,Vaikuntavasan; Velazhahan,Rethinasam.	
Data: 	2011-01-01	
Ano: 	2011	
Palavras-chave: 	Capsicum annuum; Chitinase; Induced resistance; Peroxidase; Phenolics; Polyphenol oxidase; Thaumatin-like protein.	
Resumo: 	Induction of phenolics, peroxidase (PO), polyphenol oxidase (PPO), chitinase and thaumatin-like proteins (TLP) in leaves of chilli (Capsicum annuum L.) in response to foliar application with a biocontrol agent Burkholderia sp. strain TNAU-1 was studied. Chilli plants, when sprayed with Burkholderia sp. strain TNAU-1 showed increase in phenolic content one day after application and the maximum accumulation was observed seven days after treatment. Three new peroxidase isozymes (PO-1, PO-2 and PO-3) were induced in chilli leaves upon treatment with Burkholderia sp. strain TNAU-1. The activity of all the peroxidases was at the maximum level three days after treatment and subsequently decreased. Protein extracts obtained from Burkholderia sp. strain TNAU-1 treated plants exhibited a major polyphenol oxidase (PPO-1) one day after treatment. The activity of PPO-1 subsequently decreased, but continuously present throughout the experimental period of 15 days. Western blot analysis of protein extracts from Burkholderia sp. strain TNAU-1 treated chilli leaves revealed that two TLPs with sizes of 23 and 25 kDa and a chitinase with an apparent molecular weight of 28 kDa were induced three days after treatment.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202011000400003	
Editor: 	Brazilian Journal of Plant Physiology	
Relação: 	10.1590/S1677-04202011000400003	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Plant Physiology  v.23 n.4 2011	
Fonte: 	info:eu-repo/semantics/openAccess