Author

J. D. Callaghan

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Microbiology· 4

Signature Assays, Organisms & Methods

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Approach:experimental assay· 4 Research Focus:host-pathogen & immune response· 3 Assay:metagenomics· 2 Research Focus:ecology & biodiversity· 1 Organism:human· 1 Assay:proteomics· 1 Organism:virus· 1

Frequent Co-Authors

C. S. Sheik· 2 shared N. A. Stella· 2 shared A. J. Heathcote· 1 shared A. J. St. Leger· 1 shared A. Mammen· 1 shared A. S. Grewel· 1 shared A. Wood· 1 shared B. R. Treat· 1 shared

Activity by Year

2020-2024 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 15 mutual co-author links

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2 shared papersMicrobiology

C. S. Sheik

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Author profile →

4 papers

Recent·Most cited

Spatio-temporal dynamics of cyanobacterium Dolichospermum lemmermannii populations in a bloom-prone region of Lake Superior

A. Wood, J. D. Callaghan, R. Loiselle, R. M. McManus, S. S. Brovold, H. A. Wellard Kelly, E. E. Alexson, R. W. Sterner, M. J. Hudson, C. S. Sheik

The paper tracks the seasonal population dynamics of Dolichospermum lemmermannii in Lake Superior, finding low abundances with seasonal spikes and strain turnover.

bioRxiv · Feb 28, 2024 · PreprintMicrobiology

Rise in frequency of lasR mutant Pseudomonas aeruginosa among keratitis isolates between 1993 and 2021

R. M. Q. Shanks, S. Atta, N. A. Stella, C. V. Sundar-Raj, J. E. Romanowski, A. S. Grewel, H. Q. Shanks, S. M. Mumper, D. K. Dhaliwal, A. Mammen, J. D. Callaghan, R. C. Calvario, E. G. Romanowski, R. P. Kowalski, M. E. Zegans, V. Jhanji

The paper tracks the rise in lasR mutations in Pseudomonas aeruginosa keratitis isolates from 1993 to 2021, showing increased frequency and association with worse clinical outcomes.

bioRxiv · Aug 22, 2023 · PreprintMicrobiology

Nitrogen dynamics and fixation control cyanobacterial abundance, diversity, and toxicity in Lake of the Woods (USA, Canada)

K. E. Natwora, A. J. Heathcote, M. B. Edlund, S. E. Bowe, J. D. Callaghan, C. S. Sheik

This study shows that internal nitrogen cycling via nitrogen fixation supports nitrogen-fixing cyanobacteria and cyanotoxin production in Lake of the Woods despite low external nitrogen inputs.

bioRxiv · Apr 12, 2023 · PreprintMicrobiology

Generation of Xylose-inducible promoter tools for Pseudomonas species and their use in implicating a role for the Type II secretion system protein XcpQ in inhibition of corneal epithelial wound closure

J. D. Callaghan, N. A. Stella, K. M. Lehner, B. R. Treat, K. M. Brothers, A. J. St. Leger, R. M. Shanks

This paper develops a xylose-inducible promoter system for Pseudomonas species and uses it to show XcpQ's role in inhibiting corneal wound closure.

bioRxiv · Jan 31, 2020Microbiology