Responses of the Host Plant Tissues to Gall Induction in Aspidosperma spruceanum Mü***.(Apocynaceae)

作     者：Anete Teixeira Formiga Geraldo Luiz Goncalves Soares Rosy Mary dos Santos Isaias 

作者机构：Departamento de BotanicaCampus da PampulhaInstituto de Ciencias BiologicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil Departamento de BotanicaCampus do ValeInstituto de BiocienciasUniversidade Federal do Rio Grande do SulPorto AlegreBrazil 

出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)

年 卷 期：2011年第2卷第6期

页      面：823-834页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：The authors would like to thank the undergraduate stu-dent Ariane Chagas de Castro of the Universidade Fe-deral de Minas Gerais(UFMG)for helping with the col-lections CNPq and CAPES for financial support and scholarship 

主　　题：Aspidosperma Cell Competence Gall Development Leaf Anatomy 

摘      要：The ontogenetic characterization of the leaf galls induced in the internervural region and in the second and third order veins of A. spruceanum Müell Arg. (Apocynaceae) aims to evaluate the distinct levels of cell reaction during the process of gall formation, and the relation between external gall morphology and the oviposition sites. The ground system had the most remarkable alterations, namely, the non differentiation of palisade parenchyma in both leaf sides, the hyperplasia of the spongy parenchyma and the neoformation of fibersclereids, a cell type not observed in non galled leaves. Changes of the feeding sites inside the larval chamber reveal distinct levels of cell competence to respond to the insects stimuli and explain the variations in the shape of the larval chamber.