Huanglongbing is a disease associated with which type of bacteria?

Huanglongbing (HLB), also known as citrus greening disease, is specifically associated with phloem-limited fastidious bacteria. These bacteria belong to the genus Candidatus Liberibacter, which are known to inhabit the phloem tissue of plants. The disease primarily affects citrus trees, leading to symptoms such as yellowing leaves, misshapen fruit, and eventual decline of the tree.

The association with phloem-limited bacteria is crucial because it underscores how this pathogen affects nutrient transport within the plant. The bacteria interfere with the plant's ability to properly transport sugars and nutrients, leading to the typical symptoms seen in HLB-infected trees. The understanding of this relationship is essential for developing effective management strategies for controlling the disease and mitigating its impact on citrus production.