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Integrated bacterial transcriptome and host metabolome analysis reveals insights into “ Candidatus Liberibacter asiaticus” population dynamics in the fruit pith of three citrus cultivars with different tolerance

Citation
Li et al. (2024). Microbiology Spectrum 12 (4)
Names
Ca. Liberibacter asiaticus
Abstract
ABSTRACT “ Candidatus Liberibacter asiaticus” (CLas), the causal agent of citrus Huanglongbing (HLB), is able to multiply to a high abundance in citrus fruit pith. However, little is known about the biological processes and phytochemical substances that are vital for CLas colonization and growth in fruit pith. In this study, CLas-infected fruit pith of three citrus cultivars (“Shatangju” mandarin, “Guanxi” pomelo, and

Zoothamnium mariella sp. nov., a marine, colonial ciliate with an atypcial growth pattern, and its ectosymbiont Candidatus Fusimicrobium zoothamnicola gen. nov., sp. nov

Citation
Kendlbacher et al. (2024). PLOS ONE 19 (4)
Names
Ca. Fusimicrobium zoothamnicola
Abstract
Ciliates are unicellular eukaryotes, regularly involved in symbiotic associations. Symbionts may colonize the inside of their cells as well as their surface as ectosymbionts. Here, we report on a new ciliate species, designated as Zoothamnium mariella sp. nov. (Peritrichia, Sessilida), discovered in the northern Adriatic Sea (Mediterranean Sea) in 2021. We found this ciliate species to be monospecifically associated with a new genus of ectosymbiotic bacteria, here proposed as Candidatus Fusimicr

Specifically targeting antimicrobial peptides for inhibition of Candidatus Liberibacter asiaticus

Citation
Mallawarachchi et al. (2024). Journal of Applied Microbiology 135 (4)
Names
Ca. Liberibacter asiaticus
Abstract
Abstract Aims Huanglongbing (citrus greening) is a plant disease putatively caused by the unculturable Gram-negative bacterium Candidatus Liberibacter asiaticus (CLas), and it has caused severe damage to citrus plantations worldwide. There are no definitive treatments for this disease, and conventional disease control techniques have shown limited efficacy. This work presents an in silico evaluation of using specifically targeting anti-microbia

Experimental evidence of <scp>d</scp>‐glutamate racemase activity in the uncultivated bacterium Candidatus Saccharimonas aalborgensis

Citation
Peñalver et al. (2024). Environmental Microbiology 26 (4)
Names
Ca. Saccharimonas aalborgenesis Saccharimonas aalborgensis Ts
Abstract
AbstractThe Candidate Phyla Radiation (CPR) encompasses widespread uncultivated bacteria with reduced genomes and limited metabolic capacities. Most CPR bacteria lack the minimal set of enzymes required for peptidoglycan (PG) synthesis, leaving it unclear how these bacteria produce this essential envelope component. In this study, we analysed the distribution of d‐amino acid racemases that produce the universal PG components d‐glutamate (d‐Glu) or d‐alanine (d‐Ala). We also examined moonlighting

Trunk Injection of Citrus Trees with a Polymeric Nanobactericide Reduces Huanglongbing Severity Caused by Candidatus Liberibacter asiaticus

Citation
Guerrero-Santos et al. (2024). The Plant Pathology Journal 40 (2)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB) is a disease caused by the phloem- limited Candidatus Liberibacter asiaticus (CLas) that affects the citrus industry worldwide. To date, only indirect strategies have been implemented to eradicate HLB. Included among these is the population control of the psyllid vector (Diaphorina citri), which usually provides inconsistent results. Even though strategies for direct CLas suppression seem a priori more promising, only a handful of reports have been focused on a confrontation