Cucumber hypocotyls were extracted and the extract centrifuged at 100,000g to yield a supernatant or cytosol fraction. Binding of [(3)H]-gibberellin(4) (GA(4)) to soluble macromolecular components present in the cytosol was demonstrated at 0 C by Sephadex chromatography. Binding assays performed with cytosol that had been preheated or incubated with protease, DNase, RNase, or phospholipase A or...

Forekomst av gibberellinliknande substanser hos gran (Picea abies (L.) Karst.) och deras betydelse for tillvaxt och blomning Abstract ODC 161.4-174.7 Growing shoots and young seedlings of Norway spruce (Picea abies) contain at least six different gibberellin-like substances; most probably none o f them is identical to gibberellic acid or gibberellin A l. The gibberellin-like substances are all ...

Many plant developmental, physiological and metabolic processes are regulated, at least in part, by nutrient availability. In particular, alterations in the availability of soluble sugars, such as glucose and sucrose, help regulate a diverse array of processes. Multiple lines of evidence indicate that many of these processes are also regulated in response to other signalling molecules, such as ...