Title
Hypothenemus hampei (Coleoptera: Curculionidae) as in vitro inducer of laminarinase and chitinase of Beauveria bassiana (Hypocreales: Clavicipitaceae)
Other title
Hypothenemus hampei (Coleoptera: Curculionidae) induce in vitro laminarinasa y quitinasa de beauveria bassiana (Hypocreales: Clavicipitaceae)
Date Issued
01 January 2017
Access level
metadata only access
Resource Type
journal article
Author(s)
Acuña-Payano R.
Quiroz-Farfán D.
Laynes-Zela P.
Publisher(s)
Sociedad Colombiana de Entomologia
Abstract
In Peru, Hypothenemus hampei or the coffee berry borer, (CBB) is the most important pest, causing specific damage to coffee crops, because it causes fruit to fall during feeding. On the other hand, Beauveria bassiana is an entomopathogenic fungus widely used in biological control. This study determine the induction of chitinase and laminarinase of B. bassiana in presence of H. hampei powder and how it relates to pathogenicity in order to promote the development of biological control agents and replace the use of pesticides. Three different liquid media cultures were prepared to induce the enzymatic production and growth of B. bassiana; and biomass, total proteins, conidia, enzymatic activities and enzymatic specific activities were evaluated. Data were analyzed using Spss 19.0. Significant differences (P < 0.05) for biomass (F = 5.30; df = 35; P < 0.05), conidia (F = 190.87; df = 35; P < 0.05), total proteins (F = 91.04; df = 35; p < 0.05), laminarinase activity (F = 27.61; df = 35; P < 0.05), specific laminarinase activity (F = 25.31; df = 35; P < 0.05), chitinase activity (F = 32.66; df = 35; P < 0.05) and specific chitinase activity (F = 26.91; df = 35; P < 0.05) were determined between each treatment evaluated. Levels of chitinase and laminarinase determined that induction of these enzymes is possible in liquid media cultures supplemented with powdered H. hampei extract. Results require further evaluation for application in vivo but are fundamental and constitute a contribution to knowledge about the pathogenic mechanism of B. bassiana.
Start page
7
End page
13
Volume
43
Issue
1
Language
Spanish
OCDE Knowledge area
Micología
Zoología, Ornitología, Entomología, ciencias biológicas del comportamiento
Protección y nutrición de las plantas
Subjects
Scopus EID
2-s2.0-85039779391
Source
Revista Colombiana de Entomologia
ISSN of the container
01200488
Sources of information:
Directorio de Producción Científica
Scopus