[en] K. Shibata (1957) opened a new avenue to research when, having introduced the opal glass technique, he recorded absorption spectra of etiolated and greening leaves. He discovered how these spectra were changing, and he showed that the chlorophyll(ide) forms formed in the light were not everlasting, but were replaced one by another. Since this discovery, a number of chlorophyll(ide) forms have been characterized in the etiolated leaf. The life-time of some of these chlorophyllides is short. Some are transformed reversibly into another; some are transformed irreversibly. These transformations need light in some cases. Their temperature dependence varies greatly.
Ministère de la politique scientifique. Actions concertées
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] ULiège. Patrimoine - Université de Liège. Patrimoine [BE]
Funding number :
nr 80/85-1983
Commentary :
Bereza and Dujardin have contributed to the second part of this paper (from section 3.2 onwards). B. Bereza was on leave from the Biophysics Laboratory of the University of Wroclaw, Poland.
