| abscission | <botany> The normal shedding from a plant of an organ that is mature or aged, for example a ripe fruit, an old leaf. Adj. Abscissile. (09 Oct 1997) |
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| abscission cellulase | <enzyme> High sequence conservation between bean and soybean abscission cellulase (bac and sac respectively); nucleotide sequence given in first source Registry number: EC 3.2.1.- Synonym: bac gene product, bean, sac gene product, soybean (26 Jun 1999) |