Cleavage of the Carboxyl-Terminus of LEACS2, a Tomato 1-Aminocycl-opropane-1-Carboxylic Acid Synthase Isomer, by a 64-kDa Tomato Metalloprotease Produces a Truncated but Active Enzyme Effects of salviandic acid B(SA-B) on activity of basement membrane-type collagenase and impact of regulatory factors in rats with cardiac hypertrophy