Rosy Mary Santos Isaias1, Denis Coelho Oliveira2, Ana Sílvia Franco Pinheiro Moreira3, Geraldo Luiz Gonçalves Soares4, Renê Gonçalves Silva Carneiro5. 1. Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Botânica, Avenida Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais, Brazil, CEP 31270-901. Electronic address: rosy@icb.ufmg.br. 2. Universidade Federal de Uberlândia, Instituto de Biologia, Campus Umuarama, Rua Ceará s/n, Bloco 2D, Uberlândia, Minas Gerais, Brazil, CEP 38400-902. Electronic address: denisoliveira@inbio.ufu.br. 3. Universidade Federal de Uberlândia, Instituto de Biologia, Campus Umuarama, Rua Ceará s/n, Bloco 2D, Uberlândia, Minas Gerais, Brazil, CEP 38400-902. Electronic address: anasilvia@inbio.ufu.br. 4. Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Departamento de Botânica, Avenida Bento Gonçalves, 9500, Bl. IV, Prédio 43433, Sala 222, Porto Alegre, Rio Grande do Sul, Brazil, CEP 91509-900. Electronic address: geraldo.soares@ufrgs.br. 5. Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Departamento de Botânica, Avenida Antônio Carlos, 6627, Pampulha, Belo Horizonte, Minas Gerais, Brazil, CEP 31270-901. Electronic address: rgscarneiro@gmail.com.
Abstract
BACKGROUND: Galls have specialized tissues for the protection and nutrition of the inducers, and these tissues have been studied from the developmental and histochemical perspectives. Recently, the role of oxidative stress in galls has been tested histochemically through detection of H2O2 in gall tissues. SCOPE OF REVIEW: Developmental processes and cytological events are revisited from the perspective of the redox-potential balance in both the apoplast and symplast, especially concerning the accumulation of reactive oxygen species (ROS). MAJOR CONCLUSIONS: The redox potential is imbalanced differently in the apoplast and symplast at gall sites, with the apoplast having lower antioxidant-buffering capacity than the symplast. The strategies to recover redox-potential homeostasis involve the dissipation of ROS by scavenging molecules, such as phenolics, flavonoid derivatives, tocopherol, and enzyme systems. GENERAL SIGNIFICANCE: Insect galls are good models to test developmental hypotheses. Although the exact mechanisms of gall induction and development have not been elucidated at the biochemical and biophysical levels, modulation of the redox potential is involved in the crucial steps of gall initiation and establishment. This article is part of a Special Issue entitled Redox regulation of differentiation and de-differentiation.
BACKGROUND: Galls have specialized tissues for the protection and nutrition of the inducers, and these tissues have been studied from the developmental and histochemical perspectives. Recently, the role of oxidative stress in galls has been tested histochemically through detection of H2O2 in gall tissues. SCOPE OF REVIEW: Developmental processes and cytological events are revisited from the perspective of the redox-potential balance in both the apoplast and symplast, especially concerning the accumulation of reactive oxygen species (ROS). MAJOR CONCLUSIONS: The redox potential is imbalanced differently in the apoplast and symplast at gall sites, with the apoplast having lower antioxidant-buffering capacity than the symplast. The strategies to recover redox-potential homeostasis involve the dissipation of ROS by scavenging molecules, such as phenolics, flavonoid derivatives, tocopherol, and enzyme systems. GENERAL SIGNIFICANCE: Insect galls are good models to test developmental hypotheses. Although the exact mechanisms of gall induction and development have not been elucidated at the biochemical and biophysical levels, modulation of the redox potential is involved in the crucial steps of gall initiation and establishment. This article is part of a Special Issue entitled Redox regulation of differentiation and de-differentiation.
Authors: Bruno G Ferreira; Renan Falcioni; Lubia M Guedes; Sofia C Avritzer; Werner C Antunes; Luiz A Souza; Rosy M S Isaias Journal: J Histochem Cytochem Date: 2016-11-12 Impact factor: 2.479
Authors: Lubia M Guedes; Narciso Aguilera; Bruno G Ferreira; Sebastián Riquelme; Katia Sáez-Carrillo; José Becerra; Claudia Pérez; Evelyn Bustos; Rosy M S Isaias Journal: J Plant Res Date: 2019-06-27 Impact factor: 2.629
Authors: Denis C Oliveira; Ana Silvia F P Moreira; Rosy M S Isaias; Vitor Martini; Uiara C Rezende Journal: Front Plant Sci Date: 2017-07-24 Impact factor: 5.753
Authors: Bruno G Ferreira; Denis C Oliveira; Ana S F P Moreira; Ana P Faria; Lubia M Guedes; Marcel G C França; Rafael Álvarez; Rosy M S Isaias Journal: PLoS One Date: 2018-10-22 Impact factor: 3.240