FIGURE

Fig. 3

ID

ZDB-FIG-070928-2

Publication

Hirata et al., 2007 - Zebrafish relatively relaxed mutants have a ryanodine receptor defect, show slow swimming and provide a model of multi-minicore disease

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Fig. 3

Ca²⁺ transients are smaller in ryr mutant fast muscles. (A) Schematic summary of the experimental procedure. Calcium Green-1 dextran was injected into one cell of 8- to 16-cell-stage embryos. Embryos (48 hpf) were pinned on a dish and given mechanosensory stimulation by a puff of liquid to the tail. The relative level of Calcium Green-1 fluorescence ( ${Delta}$ F/F) in muscle fibers was assayed by line-scanning with a confocal microscopy. (B) The transient increase in relative fluorescence represents the transient increase of Ca²⁺ in the fast muscle following stimulation (arrow) of a wild-type embryo (black) and that of an ryr mutant (red). (C) The transient increase of Ca²⁺ in slow muscle is unperturbed in ryr mutants (red) compared to wild-type (black).

Expression Data

Expression Detail

Antibody Labeling

Phenotype Data

Fish:	ryr1b^mi340/mi340
Observed In:	ryanodine-sensitive calcium-release channel activity
Stage:	Long-pec

Phenotype Detail

Acknowledgments

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