Citrus Huanglongbing correlated with incidence of Diaphorina citri carrying Candidatus Liberibacter asiaticus and citrus phyllosphere microbiome

• DOI: 10.3389/fpls.2022.964193
• Publication Date: 2022-11-18T13:44:44Z
• Authors: Yang Hu; Youqing Meng; Liangjin Yao; Enguo Wang; Tao Tang; Yunsheng Wang; Liangying Dai; Mingping Zhao; Hong-en Zhang; Xiaoyan Fan; Luyun Luo; Wei Xiang; Zhuo Zhang
• Keywords: Diaphorina citri; Phyllosphere; Citrus × sinensis

In China, citrus Huanglongbing (HLB) disease is caused by the Candidatus Liberibacter asiaticus bacterium, which carried Asian psyllid Diaphorina citri Kuwayama. It was hypothesized that epidemic of HLB may related with rate bacterium presence in insect vector and content plant tissues, as well phyllosphere microbe communities changes. This study systematically analyzed or absence Ca. L. tree leaves D. over a 6-year period using real-time PCR. addition, changes number bacteria 12 months were quantified, relationship between proportion carrying plants infected analyzed. Results showed stable relatively low from January to September. The spring summer, then peaked December. gradually declined 2014 2019. significant positive correlation diseased citrus. bacterial fungal on healthy leaf significantly different April Pathogenic invasions change microbial community structure. could be summarized correlated incidence microbiome.