English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Some plant pathogens form obligate relationships with their insect vector and are vertically transmitted via eggs analogous to insect endosymbionts. Whether insect endosymbionts manipulate plant defenses to benefit their insect host remains unclear. The tomato psyllid,  Bactericerca cockerelli  (Sulc), vectors the endosymbiont “ Candidatus  Liberibacter psyllaurous”  (Lps)  during feeding on tomato ( Solanum lycopersicum  L.).  Lps  titer in psyllids varied relative to the psyllid developmental stage with younger psyllids harboring smaller  Lps  populations compared to older psyllids. In the present study, feeding by different life stages of  B. cockerelli  infected with  Lps , resulted in distinct tomato transcript profiles. Feeding by young psyllid nymphs, with lower  Lps  levels, induced tomato genes regulated by jasmonic acid (JA) and salicylic acid (SA) ( Allene oxide synthase ,  Proteinase inhibitor 2 ,  Phenylalanine ammonia-lyase 5 ,  Pathogenesis-related protein 1 ) compared to feeding by older nymphs and adults, where higher  Lps  titers were found. In addition, inoculation of  Lps  without insect hosts suppressed accumulation of these defense transcripts. Collectively, these data suggest that the endosymbiont-like pathogen  Lps  manipulates plant signaling and defensive responses to benefit themselves and the success of their obligate insect vector on their host plant.

plos one

Manipulation of Plant Defense Responses by the Tomato Psyllid (Bactericerca cockerelli) and Its Associated Endosymbiont Candidatus Liberibacter Psyllaurous