Journal of Plant Physiology & Pathology ISSN: 2329-955X

Research Article, J Plant Physiol Pathol Vol: 5 Issue: 2

Aggressiveness of Cuban Papaya ringspot virus Isolates on Carica papaya L. cv. Maradol Roja under Greenhouse Conditions

Dariel Cabrera Mederos1,2*, Maylin Cruz3, Claudia F. Nome2, Fabián Giolitti2, Orelvis Portal4*

1Departamento de Agronomía, Facultad de Ciencias Agropecuarias, Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba

2Instituto de Patología Vegetal (IPAVE), Centro de Investigaciones Agropecuarias (CIAP), Instituto Nacional de Tecnología Agropecuaria (INTA), Av. 11 de Septiembre 4755, X5020ICA Córdoba, Argentina

3Laboratorio Provincial de Sanidad Vegetal, Santa Clara, Cuba

4Departamento de Biología, Facultad de Ciencias Agropecuarias, Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba

*Corresponding Authors:
Dariel Cabrera Mederos
Departamento de Agronomía
Facultad de Ciencias Agropecuarias
Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba
Tel: +53-42-207171
E-mail: [email protected]
 
Orelvis Portal
Departamento de Biología
Facultad de Ciencias Agropecuarias
Universidad Central “Marta Abreu” de Las Villas, Santa Clara, Cuba
E-mail: [email protected]
 

Received Date: February 28, 2017; Accepted Date: April 11, 2017; Published Date: April 16, 2017

Citation: Cabrera Mederos D, Cruz M, Nome CF, Giolitti F, Portal O (2017) Aggressiveness of Cuban Papaya ringspot virus Isolates on Carica papaya L. cv. Maradol Roja under Greenhouse Conditions. J Plant Physiol Pathol 5:2. doi: 10.4172/2329-955X.1000163

Abstract

Aggressiveness of Cuban Papaya ringspot virus Isolates on Carica papaya L. cv. Maradol Roja under Greenhouse Conditions

Carica papaya is a major fruit crop in tropical and subtropical regions; however, its production has several constraints. Papaya ringspot virus (PRSV) is the most important pathogen affecting papaya plantations. Symptoms induced by a known PRSV isolate on papaya plants after mechanical inoculation were described to elaborate an evaluation scale under greenhouse conditions. The aggressiveness of 24 Cuban PRSV isolates was determined by assessing symptom severity induced on papaya plants cv. Maradol roja under greenhouse conditions. An evaluation scale of 0 to 6 scores was elaborated based on the observations of PRSV symptom progress. Symptoms induced by Cuban PRSV isolates included vein clearing, mottling and swelling zones on the adaxial leaf surface, slight deformation of young leaves and distortion. PRSV isolates from Nueva Paz, Güines, and San José de Las Lajas in the west, Sancti Spíritus in the center, and Palma Soriano and Puerto Padre in the east of the country were the most aggressive according to their area under the disease progress curve values. Knowledge about the aggressiveness of this virus is crucial for selecting PRSV isolates to implement management strategies and papaya breeding programs in Cuba.

Keywords: Mechanical inoculation; Papaya; PRSV

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