ZFIN Image: Phan et al., 2018, Fig. 8

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Figure Caption

Fig. 8

In vivo effect of ?eccA1, ?espG1 and ?espH in zebrafish larvae.

Graphs A-C show relative levels of infection as determined by automated pixel count software for infection of zebrafish larvae. The larvae were infected with ~75?150 CFU red fluorescent M. marinum mutant strains and analyzed at 4 dpi. Graphs show combined data of three independent biological replicates per mutant strain, each dot represents one larva. Bars represent mean and standard error of the mean. A. Systemic infection of zebrafish larvae with M. marinum ?eccA₁, B. M. marinum ?espG₁ and C. M. marinum ?espH, * = <0.05, **** <0.001. Representative bright field and corresponding fluorescent images are depicted in: D. WT infection, F. eccCb₁ mutant infection, H. M. marinum ?eccA₁, J. M. marinum ?espG₁, L. M. marinum ?espH. Confocal imaging of a single cluster of infected L-plastin labeled phagocytic cells (cyan) in the tail of infected larvae confirmed the phenotype seen in fluorescent imaging: E. WT infection, G. eccCb1 mutant infection, I. M. marinum ?eccA₁, K. M. marinum ?espG₁, M. M. marinum ?espH, depicting a cording phenotype (closed arrows) and intense fluorescent spots suggestive for phagocytic cell debris (open arrows). Scale bar E, G, I, K, M = 50 ?m.

Figure Data

Phenotype details

Acknowledgments

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