Contrasting amino acid profiles among permissive and non-permissive hosts of Candidatus liberibacterasiaticus, putative causal agent of Huanglongbing

M. Setamou, O.J. Alabi, Catherine Simpson, J.L. Jifon

Research output: Contribution to journalArticlepeer-review

Abstract

\textcopyright 2017 Setamou et al. Huanglongbing is a devastating disease of citrus. In this study, a comprehensive profile of phloem sap amino acids (AA) in four permissive host plants of Candidatus Liberibacter asiaticus (CLas) and three non-permissive Rutaceae plants was conducted to gain a better understanding of host factors that may promote or suppress the bacterium. The AA profiles of Diaphorina citri nymphs and adults were similarly analyzed. A total of 38 unique AAs were detected in phloem sap of the various plants and D. citri samples, with phloem sap of young shoots containing more AAs and at higher concentrations than their mature counterparts. All AAs detected in phloem sap of non-permissive plants were also present in CLas-permissive hosts plus additional AAs in the latter class of plants. However, the relative composition of 18 commonly shared AAs varied between CLas-permissive hosts and non-permissive plants. Multivariate analysis with a partial least square discrimina
Original languageEnglish
JournalPLoS ONE
StatePublished - 2017

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