Diaphorina citri is an important vector transmitting Candidatus Liberibacter asiaticus (Las), the phloem-limited bacterium that causes huanglongbing (HLB) disease in citrus. Experiments by Mann et al. (2012) suggest that Las influences host selection behavior by D. citri by modifying the release of specific volatiles and plant nutritional contents, facilitating the spread of Las. While increased preference of insect vectors for virus-infected versus non-infected host plants has been demonstrated for both persistently and non-persistently transmitted viruses, little is known about similar interactions involving pathogenic bacteria.
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