AI Article Synopsis

  • Vector-borne bacterial pathogens negatively impact crops globally, resulting in significant financial losses due to their host- and vector-dependent evolution that has led to a reduced genome size.
  • Research focused on three specific protein features from these pathogens revealed that they have fewer genes related to flagellin and cold shock proteins compared to their free-living relatives, making them less effective at provoking immune responses in plants.
  • The study also found that certain epitopes from the 'Candidatus Liberibacter asiaticus' can trigger immune responses in some plants, indicating that these pathogens have adapted mechanisms to evade detection by their hosts.

Article Abstract

Vector-borne bacterial pathogens cause devastating plant diseases that cost billions of dollars in crop losses worldwide. These pathogens have evolved to be host- and vector-dependent, resulting in a reduced genome size compared to their free-living relatives. All known vector-borne bacterial plant pathogens belong to four different genera: 'Candidatus Liberibacter', 'Candidatus Phytoplasma', Spiroplasma and Xylella. To protect themselves against pathogens, plants have evolved pattern recognition receptors that can detect conserved pathogen features as non-self and mount an immune response. To gain an understanding of how vector-borne pathogen features are perceived in plants, we investigated three proteinaceous features derived from cold shock protein (csp22), flagellin (flg22) and elongation factor Tu (elf18) from vector-borne bacterial pathogens as well as their closest free-living relatives. In general, vector-borne pathogens have fewer copies of genes encoding flagellin and cold shock protein compared to their closest free-living relatives. Furthermore, epitopes from vector-borne pathogens were less likely to be immunogenic compared to their free-living counterparts. Most Liberibacter csp22 and elf18 epitopes do not trigger plant immune responses in tomato or Arabidopsis. Interestingly, csp22 from the citrus pathogen 'Candidatus Liberibacter asiaticus' triggers immune responses in solanaceous plants, while csp22 from the solanaceous pathogen 'Candidatus Liberibacter solanacearum' does not. Our findings suggest that vector-borne plant pathogenic bacteria evolved to evade host recognition.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11512079PMC
http://dx.doi.org/10.1111/mpp.70019DOI Listing

Publication Analysis

Top Keywords

vector-borne bacterial
16
cold shock
12
shock protein
12
free-living relatives
12
flagellin cold
8
elongation factor
8
vector-borne
8
bacterial plant
8
pathogens
8
plant pathogens
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!