Induced defense strategies of plants against Ralstonia solanacearum

Haoqi Shi; Yong Liu; Anming Ding; Weifeng Wang; Yuhe Sun

doi:10.3389/fmicb.2023.1059799

Induced defense strategies of plants against Ralstonia solanacearum

Front Microbiol. 2023 Jan 26:14:1059799. doi: 10.3389/fmicb.2023.1059799. eCollection 2023.

Authors

Haoqi Shi^{1

2}, Yong Liu³, Anming Ding¹, Weifeng Wang¹, Yuhe Sun¹

Affiliations

¹ Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong, China.
² The Graduate School, Chinese Academy of Agricultural Sciences, Beijing, China.
³ Tobacco Breeding and Biotechnology Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China.

Abstract

Plants respond to Ralstonia solanacearum infestation through two layers of immune system (PTI and ETI). This process involves the production of plant-induced resistance. Strategies for inducing resistance in plants include the formation of tyloses, gels, and callose and changes in the content of cell wall components such as cellulose, hemicellulose, pectin, lignin, and suberin in response to pathogen infestation. When R. solanacearum secrete cell wall degrading enzymes, plants also sense the status of cell wall fragments through the cell wall integrity (CWI) system, which activates deep-seated defense responses. In addition, plants also fight against R. solanacearum infestation by regulating the distribution of metabolic networks to increase the production of resistant metabolites and reduce the production of metabolites that are easily exploited by R. solanacearum. We review the strategies used by plants to induce resistance in response to R. solanacearum infestation. In particular, we highlight the importance of plant-induced physical and chemical defenses as well as cell wall defenses in the fight against R. solanacearum.

Keywords: ETI; PTI; Ralstoniasolanacearum; cell wall; cell wall integrity; structural defense.

Publication types

Review