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ABSTRACT: Management of citrus huanglongbing with native citrus endophytes

PROVIDER: PRJNA640485 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12053301_1.fastq.gz	Fastqsanger.gz
	SRR12053301_2.fastq.gz	Fastqsanger.gz
	SRR12053302_1.fastq.gz	Fastqsanger.gz
	SRR12053302_2.fastq.gz	Fastqsanger.gz
	SRR12053303_1.fastq.gz	Fastqsanger.gz

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Peptidomics of the Asian Citrus Psyllid

Project description:The aim of this study was to develop methods for the extraction of endogenous peptides from the Asian citrus psyllid, vector of the bacteria that cause the major citrus disease Huanglongbing. In addition, the native peptidome of the Asian citrus psyllid is described, with an emphasis on candidate neuropeptides.

2020-03-19 | PXD014801 | Pride

Project description:Manipulation of citrus microbiomes with native endophytes

| PRJNA891542 | ENA

Deciphering the Bacterial Microbiome of Citrus Plants in Response to ‘Candidatus Liberibacter asiaticus’-Infection and Antibiotic Treatments

Project description:Huanglongbing (HLB) is a worldwide devastating disease of citrus. There are no effective control measures for this newly emerging but century-old disease. A powerful oligonucleotide microarray of high-density 16S rRNA genes, the PhyloChip microarray, has been developed and effectively used to study bacterial diversity, especially from environmental samples. In this article, we aim to decipher the bacterial microbiome in HLB-affected citrus versus non-infected citrus as well as in citrus plants treated with ampicillin and gentamicin using PhyloChip-based metagenomics.

2013-05-09 | GSE46728 | GEO

Gene expression in Citrus sinensis fruit tissues harvested from huanglongbing-infected trees: comparison with girdled fruit

Project description:In this data set, we reported for the first time that huanglongbing disease (HLB) induces major changes in the expression of global genes in flavedo, vascular and juice vesicle tissues of citrus fruit.

2012-12-01 | GSE33373 | GEO

Expression data of sweet orange in response to Candidatus Liberibacter asiaticus infection at advanced stage

Project description:Citrus Huanglongbing (HLB, or greening) is one of the most severe diseases of citrus. Plant disease symptom development is considered to be the consequence of a number of molecular, cellular and physiological changes, and may also be associated with host defense responses. Understanding citrus host response to HLB may contribute to the development of new strategies to control this destructive disease. We performed microarray analysis to identify the differentially expressed genes in sweet orange in response to HLB infection using the Affymetrix GeneChip® citrus genome array.

2011-07-07 | GSE29633 | GEO

Tissue-specific transcriptomic profiling of ‘Candidatus Liberibacter asiaticus’ in citrus reveals novel insights into Huanglongbing pathogenesis

Project description:‘Candidatus Liberibacter asiaticus’ (Las) is a gram-negative bacterial pathogen associated with citrus huanglongbing (HLB) or greening disease. Las is transmitted by the Asian citrus psyllid (ACP) where it colonizes the phloem tissue, resulting in substantial economic losses to citrus industry worldwide. Despite extensive efforts, effective management strategies against HLB remain elusive, necessitating a deeper understanding of the pathogen’s biology. Las undergoes cell-to-cell movement through phloem flow from source to sink tissues and these tissues have varying responses to Las infection. Here, we investigate the transcriptomic landscape of Las in citrus sink tissues, particularly seed coat vasculatures, revealing more complete gene expression profiling of Las and unique transcriptomic pattern compared to previous studies using midrib tissues. Comparative transcriptomics between citrus seed coat vasculature and midrib tissues and ACP allowed the identification of tissue-specific responses and metabolic states of Las in planta. Furthermore, analysis of putative regulatory elements uncovers the potential role of LuxR-type transcription factors in regulating the expression of effector genes in citrus. We characterized two Las virulence factors that exhibit increased expression in seed coat vasculature tissue. Their ability to suppress different immune outputs was accessed and we demonstrate that they may contribute to the suppression of callose deposition during Las colonization. Moreover, this work provides novel insights into the pathogenesis of the devastating citrus HLB.

2024-06-30 | GSE270557 | GEO

Response of Sweet Orange (Citrus sinensis) to Candidatus Liberibacter asiaticus Infection

Project description:Citrus greening or huanglongbing (HLB) is a devastating disease of citrus. HLB is associated with the phloem-limited fastidious prokaryotic alpha-proteobacterium Candidatus Liberibacter spp. In this report, we used sweet orange (Citrus sinensis) leaf tissue infected with 'Ca. Liberibacter asiaticus' and compared this with healthy controls. Investigation of the host response was examined with citrus microarray hybridization based on 30,171 sets expressed sequence tag sequences from several citrus species and hybrids. The microarray analysis indicated that HLB infection significantly affected expression of 624 genes whose encoded proteins were categorized according to function. The categories included genes associated with sugar metabolism, plant defense, phytohormone, and cell wall metabolism, as well as 14 other gene categories.

2013-10-01 | GSE33003 | GEO

Gene expression in Citrus sinensis (L.) Osbeck following infection with the bacterial pathogen Candidatus Liberibacter asiaticus causing Huanglongbing in Florida

Project description:Huanglongbing (HLB) (=citrus greening) is a destructive disease of citrus which is caused by a fastidious, phloem-inhabiting bacterium of the genus Candidatus Liberibacter. Large-scale analysis of gene expression changes in ‘Valencia’ orange leaves were studied during the course of 19 weeks after inoculation with Ca. L. asiaticus using the Affymetrix GeneChip® citrus genome array to provide new insights into the molecular basis of citrus response to this pathogen. Of the more than 33,000 probe sets on the microarray 21,067 were expressed in the leaves, of which 279 and 515 were differentially expressed (FDR ≤ 0.05) five to nine and 13-17 weeks after inoculation, respectively. Results from semi-quantitative RT-PCR analysis performed on 14 selected genes were highly correlated with those observed with the microarray. Gene expression changes involved a variety of different processes including cell defense, transport, cellular organization, photosynthesis, and carbohydrate metabolism. Notable was the pathogen-induced accumulation of transcripts for a phloem-specific lectin PP2-like protein. Transcriptional changes and their relation to disease symptom development are discussed. This is the first study of transcriptional profiling in citrus in response to liberibacter infection using microarray technology. Huanglongbing (HLB) is a destructive disease of citrus which is suspected to be caused by a phloem-inhabiting bacterium of the genus Candidatus Liberibacter. Large-scale analysis of gene expression changes in ‘Valencia’ orange (C. sinensis) leaves were studied during the course of 19 weeks after inoculation with Ca. L. asiaticus (Las), the pathogen associated with HLB in Florida, using the Affymetrix GeneChip® citrus genome array to provide new insights into the molecular basis of citrus response to this pathogen.

2011-11-04 | GSE33459 | GEO

Characterization of the microbial community structure in Candidatus Liberibacter asiaticus-infected Citrus plants treated with antibiotics in the field

Project description:Huanglongbing (HLB) is a worldwide devastating disease of citrus. There are no effective control measures for this newly emerging but century-old disease. Previously, we reported a combination of Penicillin G and Streptomycin was effective in eliminating or suppressing the associated bacterium, ‘Candidatus Liberibacter asiaticus’ (Las). Here we report the bacterial composition and community structure in HLB-affected citrus plants during a growing season and while being treated with antibiotic combinations PS (Penicillin G and Streptomycin) and KO (Kasugamycin and Oxytetracycline) using the Phylochip™ G3 array.

2013-05-09 | GSE46727 | GEO

Transcriptomic response of Huanglongbing infected Citrus sinensis following field application of a microbial fermentation product

Project description:Huanglongbing (HLB) is considered the most destructive disease in Citrus production and threatens the future of the industry. Microbial derived defence elicitors have gained recognition for their role in plant defence priming. A transcriptomic assessment using GeneChip microarray of the hour 6 samples revealed differential expression of 565 genes when MFA was applied to healthy trees and 909 genes when applied infected citrus trees when compared to their respective controls. There were 403 uniquely differentially expressed genes in response to MFA following an intersectional analysis of both healthy and infected citrus trees. The transcriptomic analysis revealed that several genes associated with plant development, growth and defence were upregulated in response to MFA, including, multiple PR genes, lignin formation genes, ROS related genes, hormone synthases and hormone regulators.

2021-11-15 | E-MTAB-10919 | biostudies-arrayexpress

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