Kemper, E.


First Report on the Transmission of ‘Candidatus Liberibacter americanus’ from Citrus to Nicotiana tabacum cv. Xanthi

Francischini et al. (2007). Plant Disease 91 (5)
Ca. Liberibacter americanus
Huanglongbing (HLB), also known as greening, is one of the most important diseases of citrus worldwide. The causal agent is a gram-negative bacterium known to inhabit the phloem of infected plants. Three different candidate species infect citrus: ‘Candidatus Liberibacter africanus’ found in the African continent; ‘Ca. L. asiaticus’ found in Asia, Brazil, and the United States; and ‘Ca. L. americanus’ found in Brazil. (1). Tobacco is an easily transformable plant species that can be used as an e