Suppression by Citrus Exocortis Viroid Infection of the Naturally Occurring Inhibitor of the Conversion of 1-aminocyclopropane-1-carboxylic Acid to Ethylene by Tomato Microsomes |
| |
Authors: | J M Bellés V Conejero |
| |
Institution: | Departamento de Biotecnología, E.T.S.I. Agrónomos, Universidad Politécnica, 46022 Valencia, Spain |
| |
Abstract: | Citrus exocortis viroid (CEVd) infection of tomato cell cultures suppresses the constitutive inhibitor which blocks the conversion of 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene by tomato microsomes. The inhibitor is associated to microsomal membranes and is also found in the water soluble fraction co-isolated from the cells. The inhibitory effect is concentration dependent, heat stable and could be removed from solution by dialysis. Its possible relationship with regulation of the viroid-induced ethylene production is discussed. |
| |
Keywords: | |
|
|