The disordered effector RipAO of Ralstonia solanacearum destabilizes microtubule networks in Nicotiana benthamiana cells.

Ralstonia solanacearum causes bacterial wilt, a devastating disease in solanaceous crops. The pathogenicity of R. solanacearum depends on its type III secretion system, which delivers a suite of type III effectors into plant cells.

The Type III Effector RipL Delays Flowering and Promotes Susceptibility to in .

The plant defense responses to microbial infection are tightly regulated and integrated with the developmental program for optimal resources allocation. Notably, the defense- associated hormone salicylic acid (SA) acts as a promoter of flowering while several plant pathogens actively target the flowering signaling pathway to promote their virulence or dissemination. inject tens of effectors in the host cells that collectively promote bacterial proliferation in plant tissues.

Manipulation of the Host Endomembrane System by Bacterial Effectors.

The endomembrane system, extending from the nuclear envelope to the plasma membrane, is critical to the plant response to pathogen infection. Synthesis and transport of immunity-related proteins and antimicrobial compounds to and from the plasma membrane are supported by conventional and unconventional processes of secretion and internalization of vesicles, guided by the cytoskeleton networks. Although plant bacterial pathogens reside mostly in the apoplast, major structural and functional modifications of the endomembrane system in the host cell occur during bacterial infection.

Identification of RipAZ1 as an avirulence determinant of Ralstonia solanacearum in Solanum americanum.

Ralstonia solanacearum causes bacterial wilt disease in many plant species. Type III-secreted effectors (T3Es) play crucial roles in bacterial pathogenesis. However, some T3Es are recognized by corresponding disease resistance proteins and activate plant immunity.

Perception of unrelated microbe-associated molecular patterns triggers conserved yet variable physiological and transcriptional changes in Brassica rapa ssp. pekinensis.

Pattern-triggered immunity (PTI) includes the different transcriptional and physiological responses that enable plants to ward off microbial invasion. Surface-localized pattern-recognition receptors (PRRs) recognize conserved microbe-associated molecular patterns (MAMPs) and initiate a branched signaling cascade that culminate in an effective restriction of pathogen growth. In the model species Arabidopsis thaliana, early PTI events triggered by different PRRs are broadly conserved although their nature or intensity is dependent on the origin and features of the detected MAMP.

Host adaptation and microbial competition drive phylotype I evolution in the Republic of Korea.

Bacterial wilt caused by the species complex (RSSC) threatens the cultivation of important crops worldwide. We sequenced 30 RSSC phylotype I () strains isolated from pepper () and tomato () across the Republic of Korea. These isolates span the diversity of phylotype I, have extensive effector repertoires and are subject to frequent recombination.

Erratum: Type III Effectors with Predicted Nuclear Localization Signal Localize to Various Cell Compartments and Modulate Immune Responses in spp.

[This corrects the article on p. 43 in vol. 36, PMID: 32089660.

Type III Effectors with Predicted Nuclear Localization Signal Localize to Various Cell Compartments and Modulate Immune Responses in spp.

() is a causal agent of bacterial wilt in crops worldwide including Republic of Korea. virulence predominantly relies on type III secreted effectors (T3Es). However, only a handful of T3Es have been characterized.