Characterization of bacterial strains isolated from the Musa spp. with in vitro antifungal activity against Mycosphaerella fijiensis
Journal Title: Biotecnología Vegetal - Year 2010, Vol 10, Issue 1
Abstract
The study of Musa - Mycosphaerella fijiensis interaction and their interaction with microorganisms in Musa spp. phyllosphere may contribute to the development of breeding strategies to achieve more durable resistance and highly selective fungicides. However, little is known about the microbiota present in this crop and its possible relationship to the causal agent of the disease. Then, the aimed of this research was to isolate bacterium from the phyllosphere of bananas and plantains and to characterize those with in vitro antifungal activity against M. fijiensis. Tissue samples were taken from leaves, with and without symptoms of the disease, from three partially resistant and three susceptible cultivars. The method of leaf printing on solid medium was used to isolate the bacterium. Isolation and characterization was carried out by traditional tests described for these purposes. The in vitro antifungal activity was determined by dual culture. An amount of 317 bacterial strains were isolated out of which 20 of them showed antifungal activity against M. fijiensis. The 80.0% came from tissues with symptoms of black Sigatoka and 75.0% from partially resistant cultivars. Representatives of the Bacillaceae family were predominant. A common feature of selected strains was the presence of pigments and the ability to degrade different substrates.
Authors and Affiliations
Ivian Poveda , Mileidy Cruz-Martín , Cynthia Sánchez-García , Mayra Acosta-Suárez , Michel Leiva-Mora , Berkis Roque , Yelenys Alvarado-Capó
Keywords
Related Articles
- EP ID EP683802
- DOI -
- Views 152
- Downloads 0
Variables associated with the productivity of Bambusa vulgaris var. Schard vulgaris. ex Wendl. and its kidnapping potential of carbon dioxide
Bamboos are important crops based on their potential for environmental services, carbon dioxide sequestration and timber production in a short period of time. In this study, eight variables associated with the productiv...
Cardenolide metabolism and genetic transformation of Digitalis. Potentials and challenges
Cardenolides are secondary metabolites produced by plants of the genus Digitalis. These are widely used in treatments of congestive heart failure. Failed attempts to obtain suitable cardenolide levels from in vitro cul...
Use of Temporary Immersion Systems for the production of sugar cane vitro plants
This work was done at the sugarcane biofactory belonging to the Estación Territorial de Investigaciones de la Caña de Azúcar (ETICA) Villa Clara Cienfuegos. The objectives were to study the effect of temporary immersio...
Physiological indices associated with the growth of varieties of potato obtained by biotechnological methods
The aim of this work was to evaluate physiological indexes associated with growth of potatoes varieties (Solanum tuberosum L.) micropropagated using biotechnological methods. Minitubers with 10-15 grams of ‘Grettel’, ‘...
Predicting the affinity of A 2A adenosine receptor antagonists using decision trees
Neurodegenerative diseases are being treated by modulating adenosine receptors with more effective, safe and selective antagonists. The objective of the study was to develop a methodology to obtain classification models...