The unsurpassed sensitivity of the Imager is demonstrated in these Images of F', Fm', Fq'/Fm' and NPQ one minute after a caterpillar walks across a leaf. Caterpillar "footsteps" are visible as areas of photosynthetic inhibition. For the possible mechanism see Bown at al (2002) Plant Physiol 129: 1430- 1434.

[For assistance with the terms used, please see our terminology page].
Further details: micro-imaging of cells and
chloroplasts.
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