Data/hora: 11/06/2024 07:18:19

Biblioteca(s): 	Embrapa Florestas.	
Data corrente: 	27/12/2023	
Data da última atualização: 	27/12/2023	
Autoria: 	DUARTE, M. M.; AGUIAR, N. S. de; GABIRA, M. M.; TOMASI, J. de C.; VIEIRA, L. M.; HELM, C. V.; NOGUEIRA, A. C.; WENDLING, I.	
Afiliação: 	MANOELA MENDES DUARTE, FEDERAL UNIVERSITY OF PARANÁ; NATÁLIA SAUDADE DE AGUIAR, FEDERAL UNIVERSITY OF PARANÁ; MÔNICA MORENO GABIRA, FEDERAL UNIVERSITY OF PARANÁ; JÉSSICA DE CÁSSIA TOMASI, FEDERAL UNIVERSITY OF PARANÁ; LEANDRO MARCOLINO VIEIRA, FEDERAL UNIVERSITY OF PARANÁ; CRISTIANE VIEIRA HELM, CNPF; ANTONIO CARLOS NOGUEIRA, FEDERAL UNIVERSITY OF PARANÁ; IVAR WENDLING, CNPF.	
Título: 	Seasonality and genotype influence on Ilex paraguariensis cuttings rooting and bioactive compounds.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Plant Genetic Resources: Characterization and Utilization, v. 21, n. 2, p. 174-181, 2023.	
DOI: 	https://doi.org/10.1017/S147926212300059X	
Idioma: 	Português	
Conteúdo: 	Abstract Yerba mate (Ilex paraguariensis) leaves have many compounds with proven bioactive activity; so, interest and consumption of species’ products have increased globally. Here, we used 19 yerba mate genotypes from a provenance and progeny trial, yielding findings that could have significant implications for the species’ vegetative propagation and genotype selection, where we indicate some potential genotypes, contributing to yerba mate silviculture and breeding programmes. We evaluated season and genotype effects on rooting of cuttings, con- tents of bioactive compounds and the influence of these compounds on rhizogenic process. We prepared semi-woody cuttings in four seasons; after 100 days we evaluated rooting vari- ables. Methylxanthines (caffeine and theobromine) and monocaffeoylquinic acids contents were measured using high performance liquid chromatography, from aqueous extract of stock plant mature leaves. There was no correlation between rooting variables and evaluated compounds. Just eight genotypes presented above 70% of rooted cuttings in at least one sea- son. Rooting variables varied between these genotypes and seasons. Caffeine and 5-caffeoyl- quinic acid (CQA5) significantly contributed to separated genotypes and seasons. CQA5 showed highest levels in spring. Regarding to genotypes, EC22 showed low levels of caffeine in all seasons. The great variation in compounds among genotypes indicates the possibility of breeding for chemical characteristics and raw material production for different products. Our results also indicate the importance of seasons for yerba mate vegetative propagation success and leaf compound contents.	
Palavras-Chave: 	Ácidos cafeoilquínicos; Caffeoylquinic acids; Methylxanthines; Metilxantinas.	
Thesagro: 	Cafeína; Clonagem; Ilex Paraguariensis; Mate; Reprodução.	
Thesaurus Nal: 	Breeding; Caffeine; Cloning (plants); genetics; Yerba mate.	
Categoria do assunto: 	K Ciência Florestal e Produtos de Origem Vegetal	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (58780-1) - UPC - AP - DD -  -  -  - DIS