Data/hora: 01/06/2024 05:42:48

Provedor de dados: 	124	
País: 	Brazil	
Título: 	Influence of laboratory cultivation on species of Rhodophyta physiological evaluations and antifungal activity against phytopathogens	
Autores: 	Machado,Levi Pompermayer; Matsumoto,Silvia Tamie; Cuzzuol,Geraldo Rogério Faustini; Oliveira Jr,Luiz Fernando Ganassali.	
Data: 	2014-03-01	
Ano: 	2014	
Palavras-chave: 	Plant physiology; Macroalgae; Nonstructural carbohydrates; Pigments.	
Resumo: 	The present study examined changes that took place in the physiology of three species of Rhodophyta by analysing the concentration of pigments and non-structural carbohydrates, comparatively evaluating algae collected from nature and after 28 days of laboratory cultivation. Another objective of the study was to determine whether the species retain their antifungal potential after the period of laboratory cultivation, correlating the changes in physiology and those from bioactivity. After carrying out laboratory cultivation, the results indicated a trend, in the three species of macroalgae, towards a reduction in pigment concentrations, mainly in the phycobiliproteins. For the non-structural carbohydrates no response pattern of the macroalgae was observed for the conditions evaluated. Extracts from the macroalgae, Ochtodes secundiramea and Palisada flagellifera, after laboratory cultivation showed a significant increase in antifungal potential which could be positively correlated with the change in concentration and ratios of chlorophyll-a and accessory pigments. Applying techniques of laboratory cultivation to macroalgae was an efficient tool for gaining knowledge of the physiology, and for obtaining biomass and compounds having biotechnological applications, without impacting on natural populations.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100007	
Editor: 	Universidade Federal do Ceará	
Relação: 	10.1590/S1806-66902014000100007	
Formato: 	text/html	
Fonte: 	Revista Ciência Agronômica  v.45 n.1 2014	
Fonte: 	info:eu-repo/semantics/openAccess