CHEMICAL DEFENSE RESPONSES IN Eucalyptus globulus (Labill) PLANTS

Journal of The Chilean Chemical Society

BECERRA, JOSɹ  SÁNCHEZ-OLATE, MANUEL¹  RÍOS, DARCY¹  SÁEZ, KATIA¹  BITTNER, MAGALIS¹  PEREZ, CLAUDIA¹  TRONCOSO, CHRISTIAN¹ 

[1] Universidad de Concepción, Concepción, Chile

关键词: E. globules;    chemical defense;    terpenes and quinones. ;    INTRODUCTION;   

DOI  :  10.4067/S0717-97072011000300010

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

This study evaluated the expression of defense compounds by the secondary metabolism of Eucalyptus globulus plants subjected to attacks by the insect Ctenarytaina eucalypti (blue gum psyllid) and abiotic mechanical damage using gas chromatography with flame ionization detection (GC-FID) and mass detection (MS). The results show that both biological and mechanical attacks activated defense responses in the plants. We identified 34 compounds in the leaves of the treated plants. In the case of the plants damaged by C. eucalypti, four of the compounds differed from those of the control: three oxygenated monoterpenes (borneol, exo-2-hydroxy cineole and thymol) and one quinone (6-acethyl-flaviolin). In the case of the mechanical damage, five compounds differed from the control: three sesquiterpenes (alloaromadendrene, eremophilene, and caryophyllene-oxide), borneol, and 6-acethyl-flaviolin. According to the results, different compounds are biosynthesized when faced with biotic and abiotic inductions, indicating a certain level of specificity in the response of the plants to different types of damage.

【 授权许可】

Unknown