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3-Bromocinnamic acid: Noval plant cytokinin

Promulgator: :admin   Send date: :2011-11-28 09:47 Visitor: :

      3-Bromocinnamic acid is among a class of cinnamic acid to promote cell division and induce bud formation and to promote the growth of plant hormones. For the marrow, or tissue culture of tobacco stem segments, between the bromine acid can stop the division has been re-marrow cell division. This phenomenon has been used for cytokinin bioassay. Differentiation of normal stem segments by regulating the proportion of auxin and cytokinin. When the ratio of cytokinin on the auxin concentration is high, can induce bud formation; otherwise it has the tendency to promote rooting. Such as the inhibition of axillary bud between the local application of bromine acid, can lift the top of the axillary bud inhibition (ie, the top edge). Natural clustered plants (rosette-like plant) or because of the occurrence of disease, "witches' broom" of the plant where, often contain more cytokinins. 3-Bromocinnamic acid also prevents senescence in vitro, Paul Green, and this is mainly due to delay between the bromo acid chlorophyll and protein degradation rate, stable polyribosomes (high protein synthesis place), inhibition of DNA enzymes, RNA enzymes and protease activity to maintain membrane integrity and so on. Between the bromine leaves the local application of acid, to absorb the rest of the material together at the operation to the application and accumulation. Bromine acid can also be used between fruit and vegetables, the main role for the promotion of cell expansion, improve fruit set, delay leaf senescence.