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. 2021 Jun 11;12:681251. doi: 10.3389/fmicb.2021.681251

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Copyright © 2021 Fang, Guo, Zhao, Li, Liao, Deng, Xu and Zheng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Quantitative distribution off “Candidatusf Liberibacter asiaticus” (CLas) in citrus branches and fruits. (A) Symptom development of HLB-affected “Shatangju” mandarin (Citrus reticulata Blanco “Shatangju”) fruits. (B) Temporal dynamics of CLas population in different parts of HLB-affected “Shatangju” branches. Ten citrus branches were monthly collected from HLB-affected citrus trees during August 15, 2017, to January 15, 2018, and August 15, 2018 to January 15, 2019. Note the vascular columella (white arrow) under the peduncle of diseased fruit started to turn into orange in October.