A5090305535- Plant Pathogenic Bacteria Studies
- Phytoplasmas and Hemiptera pathogens
- Plant Molecular Biology Research
- Photosynthetic Processes and Mechanisms
- Light effects on plants
- Yersinia bacterium, plague, ectoparasites research
- Legume Nitrogen Fixing Symbiosis
- Plant biochemistry and biosynthesis
- Plant-Microbe Interactions and Immunity
- Studies on Chitinases and Chitosanases
- Insect symbiosis and bacterial influences
- Biochemical and Structural Characterization
- Plant Pathogens and Fungal Diseases
University of California, Riverside
2015-2024
The citrus industry is facing an unprecedented challenge from Huanglongbing (HLB). All cultivars can be affected by the HLB-associated bacterium 'Candidatus Liberibacter asiaticus' (CLas) and there no known resistance. Insight into HLB pathogenesis urgently needed in order to develop effective management strategies. Here, we use Sec-delivered effector 1 (SDE1), which conserved all CLas isolates, as a molecular probe understand virulence. We show that SDE1 directly interacts with papain-like...
The citrus industry is facing an unprecedented crisis due to Huanglongbing (HLB, aka greening disease), a bacterial disease associated with the pathogen Candidatus Liberibacter asiaticus (CLas) that affects all commercial varieties. Transmitted by Asian psyllid (ACP), CLas colonizes phloem, leading reduced yield and fruit quality, eventually tree decline death. Since adequate curative measures are not available, key step in HLB management restrict spread of identifying infected trees...
Summary Gram‐negative bacteria inject type III secreted effectors (T3 SE s) into host cells to manipulate the immune response. The YopJ family effector HopZ1a produced by plant pathogen Pseudomonas syringae possesses acetyltransferase activity and acetylates proteins facilitate infection. Using mass spectrometry, we identified a threonine residue, T346, as main autoacetylation site of HopZ1a. Two neighboring serine residues, S349 S351, are required for in vitro indispensable virulence...