Data/hora: 13/06/2024 16:37:11

Biblioteca(s): 	Embrapa Mandioca e Fruticultura.	
Data corrente: 	13/12/2023	
Data da última atualização: 	13/12/2023	
Autoria: 	VILA VERDE, D. dos S.; MENDES, M. I. de S.; NOBRE, L. V. da C.; SOUZA, A. da S.; SANTOS, K. C. F. dos; SOARES FILHO, W. dos S.	
Afiliação: 	DENISE DOS SANTOS VILA VERDE, UNIVERSITY OF SANTA CRUZ; MARIA INÊS DE SOUZA MENDES, UNIVERSITY OF SANTA CRUZ; LEILA VASCONCELOS DA COSTA NOBRE, FEDERAL UNIVERSITY OF RECÔNCAVO DA BAHIA; ANTONIO DA SILVA SOUZA, CNPMF; KAREN CRISTINA FIALHO DOS SANTOS, CNPMF; WALTER DOS SANTOS SOARES FILHO, CNPMF.	
Título: 	In vitro tolerance of citrus rootstocks under saline stress.	
Ano de publicação: 	2024	
Fonte/Imprenta: 	Plant Cell, Tissue and Organ Culture, v. 156, n. 13, 2024.	
Páginas: 	11 p.	
Idioma: 	Inglês	
Conteúdo: 	Abstract: The search for citrus rootstocks that confer resistance and tolerance to biotic and abiotic factors is increasing. Among abiotic stresses, salinity is one of the main factors that signifcantly afect growth and development in this crop. Faced this situation, genetic improvement seeks, among other aspects, to generate rootstocks that are tolerant to salinity. In this sense, tissue culture constitutes an important tool for citrus improvement, as it helps in the pre-selection of genotypes that best express salinity tolerance. Thus, this work aimed to study the tolerance of 11 citrus rootstocks to saline stress in vitro, using diferent concen-trations of sodium chloride (NaCl). For analysis of in vitro regeneration, 1 cm long stem apexes, originating from the in vitro cultivation of rootstocks, were introduced in basal WPM medium and supplemented with 0.64, 1.28, 1.92, 2.56 and 3.20 g L−1 of NaCl. After 120 days in a growth room, the plants were evaluated and the data were analyzed using the R statistical program. The genotypes showed diferent behaviors depending on the interaction between the studied factors. There was a reduction in most of the in vitro development variables of rootstocks grown in culture medium supplemented with NaCl. The ‘Riverside’ citrandarin genotypes, HTR 051, LRF (LCR × TR) -005, BRS Bravo, TSK × TRBK - Colômbia and BRS H Montenegro, were more tolerant to salinity, while TSKC × CTSW -028, the mandarin ‘Sunki Tropical’ and BRS Santana were the most sensitive.	
Thesagro: 	Citricultura; Cloreto de Sódio; Cultura de Tecido; Regeneração.	
Thesaurus Nal: 	Citrus; In vitro regeneration; Sodium chloride; Tissue culture.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Mandioca e Fruticultura (CNPMF)	
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