J.A. De Greef

Floral Induction of Bromeliads by Ethylene

It is common knowledge that ethylene can be used as forcing agent of the flowering process in bromeliads such as pineapple (Ananas comosus L. Merr.).

Endogenous Ethylene Production and Flowering of Bromeliaceae

For many years it is known that exogenous ethylene can induce flowering of pineapple. Due to the lack of sensitive methods the ethylene production of bromeliad plants has never been studied in relation to flowering induction. We demonstrated a positive correlation between ethylene production capacity of the bromeliad plant and its flowering process.

The Influence of Oxygen Concentration on Ethylene Production and the Content of 1-Aminocyclopropane-1-Carboxylic Acid (ACC) and 1-Malonylaminocyclopropane-1-Carboxylic Acid (MACC) in Etiolated Phaseolus Vulgaris Seedlings

Ethylene production by etiolated bean seedlings showed a sharp peak around 1 % O2. The time course of low O2-stimulated ethylene production reveals that at least 8 h exposure to low O2 levels is required to initiate high ethylene release. CO2 production gradually increased as the O2 concentration was increased.