Work

Die organspezifische Photodetermination der Entwicklung von Peroxydaseaktivität im Senfkeimling ( Sinapis alba L.) durch Phytochrom

Year: 1973

Type: article

Abstract: The development of extractable peroxidase activity in the mustard seedling is controlled by phytochrome (Pfr; operationally: Continuous far-red light) in an organ specific manner (enhancement in the cotyledons and taproot, inhibition in the hypocotyl; Tables I, II). Detailed kinetics of peroxidase accumulation in the cotyledons (Figs. 2, 3) reveal the existance of a two-step induction mechanism: 1. Formation of a stable transmitter during a period of competence to Pfr (“determination phase“), and 2. development of peroxidase activity mediated by the transmitter during a later period of competence to the transmitter (“realization phase“). These two periods of seedling development are completely separated in time.

Source: Zeitschrift für Naturforschung C

DOI: 10.1515/znc-1973-5-611

Authors: Peter Schopfer, Claudia Plachy

Institution: University of Freiburg

Language: English

Topic: Light effects on plants

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: hybrid

Estimated APC paid: $2,712