Cover illustration: (Top) An oasis of CAM in the Majorelle Gardens, Marrakech. (Photograph: H Griffiths). (Middle) Combined chlorophyll fluorescence (a, b) and thermal imaging (c, d) of a sycamore leaf. Inhibition of transpiration using a patch (down arrow, c) or electron transport (b, green area) results in an increase in leaf temperature (red area, d). These combined images offer the opportunity to allow the link between photosynthetic performance and stomatal behaviour to be studied both temporally and spatially. (Images from unpublished data: T Lawson, N Baker and J Morison, University or Essex). (Bottom) The most common form of Rubisco from plants, cyanobacteria and green algae. This is a hexadecamer of eight large, catalytic subunits (coloured blue) and eight small subunits (coloured yellow). Each large subunit has a binding site for the substrate (red spheres). (Image created and supplied by Inger Andersson).
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