Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/916487
Research center of Embrapa/Collection: Embrapa Acre - Artigo em periódico indexado (ALICE)
Date Issued: 2012
Type of Material: Artigo em periódico indexado (ALICE)
Authors: FLORES, P. S.
OTONI, W. C.
DHINGRA, O. D.
DINIZ, S. P. S. de S.
SANTOS, T. M. dos
BRUCKNER, C. H.
Additional Information: PATRICIA SILVA FLORES, CPAF-AC; WAGNER CAMPOS OTONI, UFV; ONKAR DEV DHINGRA, UFV; SÉRGIO PAULO SEVERO DE SOUZA DINIZ, UEM; TELMA MIRANDA DOS SANTOS; CLAUDIO HORST BRUCKNER.
Title: In vitro selection of yellow passion fruit genotypes for resistance to Fusarium vascular wilt.
Publisher: Plant Cell, Tissue and Organ Culture, Heidelberg, v. 108, n. 1, p. 37-45, Jan. 2012.
Language: en
Keywords: Maracujá amarelo
Yellow passion fruit
Maracuyá amarillo
Fusarium oxysporum f sp passiflorae
Fusariosis
Enfermedades y desórdenes de las plantas
Passiflora edulis f flavicarpa.
Cultivo in vitro
Description: Fusarium vascular wilt (caused by Fusarium oxysporum f. sp. passiflorae) is a limiting factor in the cultivation of yellow passion fruit (Passiflora edulis). Since there is no effective and economically viable control available, development of resistant or at least tolerant cultivars are in demand. A number of procedures have been used for the initial selection of plant genotypes resistant to various fungal pathogens by means of a fungal culture filtrate or purified toxin. In this study, seeds and in vitro-grown plantlets of passion fruit were screened with different concentrations of either Fusarium oxysporum f. sp. passiflorae (FOP) culture filtrate (0, 20, 30, 40 or 50%, v/v) or fusaric acid (0.10, 0.20, 0.30 or 0.40 mM) supplemented in Murashige and Skoog (MS) basal media. Subsequently, selected plants were inoculated with a conidial suspension of FOP to assess correlation between in vivo and in vitro responses. In vitro sensitivity to the selective agents and the resistance response to the pathogen were also compared. Root growth was markedly influenced by FA, culture filtrate, and conidial suspension culture treatments. Observations indicated that roots were primary targets for attack by F. oxysporum. Successful in vitro selection of resistant genotypes by both FA and culture filtrate treatments suggested that this strategy was viable for accelerating breeding of passion fruit for resistance to the Fusarium vascular wilt.
Thesagro: Doença de planta
Maracujá Peroba
Passiflora edulis flavicarpa
Fungo
Fusariose
Seleção genótipa
Cultura in vitro
Variedade resistente
Características Agronômicas
Genótipo.
NAL Thesaurus: Plant diseases and disorders
Fungi
Genotype
Agronomic traits
In vitro culture.
Data Created: 2012-02-24
ISSN: 0167-6857 (impresso) / 1573-5044 (online)
Appears in Collections:Artigo em periódico indexado (CPAF-AC)

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