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Annals of Botany 72: 457-461, 1993
© 1993 Annals of Botany Company

Buckminsterfullerene (C-60 Carbon Allotrope) Inhibits Ethylene Evolution from 1-Aminocyclopropane-1-carboxylic acid (ACC)-treated Shoots of Pea (Pisum sativum), Broadbean (Vicia faba) and Flowers of Carnation (Dianthus caryophyllus)

Ya'Acov Y. Leshem, Dov Rapoport, Aryeh A. Frimer, Gila Strul, Uri Asaf and Israel Felner

Department of Life Sciences and Chemistry, Bar-Ilan University, Ramat Gan 52900 and The Racah Institute of Physics, The Hebrew University of Jerusalem 91904, Jerusalem, Israel

When applied either in the form of a colloidal solution or in liposomes, buckyballs (C-60—buckminsterfullerene) markedly reduced ethylene evolution from cut carnation (Dianthus caryophyllus) flowers, as well as pea (Pisum sativum) and broadbean (Vicia faba) foliage treated with ethylene precursor l-aminocyclopropane-l-carboxylic acid (ACC). The liposome preparation was approximately twice as effective as colloidal solutions. Moreover, upon being incubated in a closed atmosphere with ethylene, buckyballs induced a significant depletion of ambient ethylene which was temperature and C-60—concentration dependent. This mode of C-60 action is attributed to ethylene adsorption stemming from the vast C-60 surface area, calculated to be 1317 m2 g-1, and the affinity of its carbon atoms for the {pi} component in the ethylene double bond.Copyright 1993, 1999 Academic Press

Dainthus caryophyllus, Pisum sativum, Vicia faba, adsorption, ethylene, fullerene


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