Data/hora: 09/06/2024 11:47:48

Provedor de dados: 	22	
País: 	Brazil	
Título: 	Chitosan in the induction of resistance to the damping off  tomato seedlings caused by Rhizoctonia solani Kuhn

Chitosan in the induction of resistance to the damping off tomato seedlings caused by Rhizoctonia solani Kuhn	
Autores: 	Rocha, Rita de Cassia Dosciatti Serrão; Mazaro, Sérgio Miguel; Possenti, Jean Carlo; Freddo, Álvaro Rodrigo; Zorzzi, Ivan Carlos; Dallacosta, Nean Locatelli.	
Data: 	2017-12-20	
Ano: 	2017	
Palavras-chave: 	Fitopatologia; Proteínas relacionadas à patogênese (PRP’s); Solanum lycopersicum L.	
Resumo: 	The objective of this study was to evaluate the potential of chitosan in the damping off tomato resistance induction caused by Rhizoctonia solani. The tomato seeds were submerged in solution with chitosan for twenty minutes in concentrations of 0.25; 0.5; 1 and 2% and in the control (distilled water only). The seeds were sown in polystyrene trays containing substrate inoculated with R. solani and kept in a growth chamber with 12 hours photoperiod and temperature of 25 ºC ± 2 °C for 14 days. After this period we evaluated the survival of seedlings, length and fresh weight and activity of the enzyme phenylalanine ammonia lyase (PAL), chitinase and β-1,3-glucanase. The results showed that chitosan when applied to the treatment of tomato seeds at a concentration of 0.30%, favoring the survival of seedlings inoculated with the pathogen substrate. This result is mainly related to the activation of resistance mechanisms in the plant, evidenced by activation of FAL enzymes, chitinase and β-1,3-glucanases.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/15038	
Editor: 	Scientia Agraria Paranaensis	
Relação: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/15038/12126

http://e-revista.unioeste.br/index.php/scientiaagraria/article/downloadSuppFile/15038/2342

http://e-revista.unioeste.br/index.php/scientiaagraria/article/downloadSuppFile/15038/2343

http://e-revista.unioeste.br/index.php/scientiaagraria/article/downloadSuppFile/15038/2344

http://e-revista.unioeste.br/index.php/scientiaagraria/article/downloadSuppFile/15038/2345	
Formato: 	application/pdf	
Fonte: 	Scientia Agraria Paranaensis; Vol. 16, No 4 (2017); 430-435

1983-1471	
Fonte: 	http://creativecommons.org/licenses/by-nc-sa/4.0