Titers of 'Ca. Liberibacter asiaticus' in Murraya paniculata and Murraya-reared Diaphorina citri Are Much Lower than in Citrus and Citrus-reared Psyllids

Sammanfattning

Huanglongbing, one of the most devastating diseases of citrus, is associated with the bacterium 'Candidatus Liberibacter asiaticus' vectored by the Asian citrus psyllid, Diaphorina citri, in North America. Murraya paniculata is a common ornamental plant that is an alternate host of both the psyllid and bacterium. We tested M. paniculata and Citrus sinensis grown together in the same field for their titer of 'Ca. L. asiaticus'. We found the bacterium in both M. paniculata and C. sinensis, but the titer was four orders of magnitude lower in M. paniculata. We also assayed D. citri from laboratory colonies reared on either 'Ca. L. asiaticus'-infected M. paniculata or infected Citrus spp. Psyllids reared on infected M. paniculata also carried bacterial titers five orders of magnitude lower than psyllids reared on infected Citrus spp. These observations imply resistance to huanglongbing in M. paniculata.

Nyckelord

alternate host; Asian citrus psyllid; citrus huanglongbing; orange jasmine

Publicerad i

HortScience
2012, volym: 47, nummer: 10, sidor: 1449-1452
Utgivare: AMER SOC HORTICULTURAL SCIENCE

SLU författare

• Walter, Abigail

  • United States Department of Agriculture (USDA)

UKÄ forskningsämne

Patobiologi
Zoologi
Jordbruksvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.21273/hortsci.47.10.1449

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/41803