Comment. Foliar d15N is negatively correlated with rainfall along the IGBP transect in Australia.
Response. Interpretation of increased foliar d15N in woody species along a rainfall gradient in northern Australia

Abstract

Mannose 6-phosphate reductase (M6PR, EC 1.1.1.224), a potential target for thechemical control of the parasitic angiosperms that produce mannitol, waspurified from the photosynthetic parasiteStriga hermonthica (Del.) Benth. and the achlorophyllousparasite Orobanche ramosa L. Except for theK_m values for NADPH, most of thecharacteristics of the enzymes are similar in these species, i.e. a monomericstructure of 38–39 kDa molecular mass, a pH optimum of 7.0–7.5suggesting a cytosolic location, a relatively high optimum temperature(35–45˚C), a low K_mvalue for mannose 6-phosphate of 5.9–8.6 mM and, lastly, a significantpreference for NADPH as nucleotidic cofactor.