Elena Colombi

Elena Colombi
Curtin University · School of Pharmacy & Biomedical Sciences

PhD

About

16
Publications
1,840
Reads
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196
Citations
Introduction
Elena Colombi currently works at the NZIAS, Massey University. Elena does research in Plant Protection, Environmental Science and Molecular Biology. Their most recent publication is 'The ecological genetics of Pseudomonas syringae from kiwifruit leaves'.
Skills and Expertise
Additional affiliations
October 2018 - present
Curtin University
Position
  • Research Associate
July 2017 - July 2018
Massey University
Position
  • Research Associate
June 2013 - August 2017
Massey University
Position
  • PhD Student

Publications

Publications (16)
Article
Full-text available
Horizontal transfer of the integrative and conjugative element ICEMlSymR7A converts non-symbiotic Mesorhizobium spp. into nitrogen-fixing legume symbionts. Here, we discover subpopulations of Mesorhizobium japonicum R7A become epigenetically primed for quorum-sensing (QS) and QS-activated horizontal transfer. Isolated populations in this state term...
Article
Full-text available
Members of the Mesorhizobium genus are soil bacteria that often form nitrogen-fixing symbioses with legumes. Most characterised Mesorhizobium spp. genomes are ~8 Mb in size and harbour extensive pangenomes including large integrative and conjugative elements (ICEs) carrying genes required for symbiosis (ICESyms). Here, we document and compare the c...
Article
Full-text available
Initially reported in Western Australia in the 1980s, community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) has become a major cause of S. aureus infections globally. We report the complete genome sequences of three of the earliest CA-MRSA strains isolated from remote Australian Indigenous communities in the Kimberley region of...
Article
Full-text available
Sequence type 1 (ST1) methicillin-resistant Staphylococcus aureus (MRSA) type IV[2B] has become one of the most common community-associated MRSA clones in Australia. We report the complete genome sequence of one of the earliest isolated Australian S. aureus ST1-MRSA-IV strains, WBG8287, isolated from an Indigenous Australian patient living in the r...
Article
Full-text available
Rhizobia are soil bacteria capable of forming N2-fixing symbioses with legumes, with highly effective strains often selected in agriculture as inoculants to maximize symbiotic N2 fixation. When rhizobia in the genus Mesorhizobium have been introduced with exotic legumes into farming systems, horizontal transfer of symbiosis integrative and conjugat...
Article
Full-text available
Population genomics is transforming our understanding of pathogen biology and evolution, and contributing to the prevention and management of disease in diverse crops. We provide an overview of key methods in bacterial population genomics and describe recent work focusing on three topics of critical importance to plant pathology: (i) resolving path...
Article
Mesorhizobium is a genus of soil bacteria, some isolates of which form an endosymbiotic relationship with diverse legumes of the Loteae tribe. The symbiotic genes of these mesorhizobia are generally carried on integrative and conjugative elements termed symbiosis islands (ICESyms). Mesorhizobium strains that nodulate Lotus spp. have been divided in...
Article
Of 1,033 E. coli urinary tract infection isolates collected from females >12 years of age in Australia, in 2019, only two isolates were resistant to fosfomycin with an MIC >256 mg/L. Despite having different multilocus sequence types, the two isolates harboured an identical plasmid-encoded fosA4 gene. The fosA4 gene has previously been identified i...
Article
Interactions between commensal microbes and invading pathogens are understudied, despite their likely effects on pathogen population structure and infection processes. We describe the population structure and genetic diversity of a broad range of co-occurring Pseudomonas syringae isolated from infected and uninfected kiwifruit during an outbreak of...
Preprint
Interactions between commensal microbes and invading pathogens are understudied, despite their likely effects on pathogen population structure and infection processes. We describe the population structure and genetic diversity of a broad range of co-occurring Pseudomonas syringae isolated from infected and uninfected kiwifruit during an outbreak of...
Article
Full-text available
Recurring epidemics of kiwifruit (Actinidia spp.) bleeding canker disease are caused by Pseudomonas syringae pv. actinidiae (Psa). In order to strengthen understanding of population structure, phylogeography and evolutionary dynamics, we isolated Pseudomonas from cultivated and wild kiwifruit across six provinces in China. Based on the analysis of...
Article
Horizontal gene transfer can precipitate rapid evolutionary change. In 2010 the global pandemic of kiwifruit canker disease caused by Pseudomonas syringae pv. actinidiae (Psa) reached New Zealand. At the time of introduction, the single clone responsible for the outbreak was sensitive to copper, however, analysis of a sample of isolates taken in 20...
Article
Full-text available
Recurring epidemics of kiwifruit ( Actinidia spp.) bleeding canker disease are caused by Pseudomonas syringae pv. actinidiae ( Psa ), whose emergence coincided with domestication of its host. The most recent pandemic has had a deleterious effect on kiwifruit production worldwide. In order to strengthen understanding of population structure, phyloge...
Preprint
Lateral gene transfer can precipitate rapid evolutionary change. In 2010 the global pandemic of kiwifruit canker disease caused by Pseudomonas syringae pv. actinidiae (Psa) reached New Zealand. At the time of introduction, the single clone responsible for the outbreak was sensitive to copper, however, analysis of a sample of isolates taken in 2015...

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Question
Nail polish can't be peeled off and the epidermal tissue doesn't come off that easily.

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Project (1)
Project
To provide a collection of the most recent, and significantly advanced, research on the extensive molecular interactions that plant-associated bacteria establish with their hosts, as well as with other microorganisms. Particular attention will be given to those common or diversifying strategies, mechanisms, and molecules that bacterial plant pathogens, symbionts, and biological control agents rely on for plant colonization and to cope with plant-associated microbes and communities. Information from bacterial comparative genomics, transcriptomic, and metabolomic analysis, together with functional and ecology studies, will provide innovative opportunities to unveil the molecular pathways driving the multifaceted evolution of plant-associated bacteria. At the same time, this information will also be useful to develop eco-friendly and effective plant protection strategies, increase crop yields and quality, and to safeguard the environment. Keywords: Plant-associated bacteria Bacterial communication Bacterial secretion systems Bacterial effectors Quarantine bacteria Genomics Transcriptomics Metabolomic Epidemiology Molecular and innovative diagnosis Ecofriendly control of plant diseases Website: https://www.mdpi.com/journal/microorganisms/special_issues/plant-associated_bacteria