Work

Photocontrol of the Expression of Genes Encoding Chlorophyll a/b Binding Proteins and Small Subunit of Ribulose-1,5-Bisphosphate Carboxylase in Etiolated Seedlings of Lycopersicon esculentum (L.) and Nicotiana tabacum (L.)

Year: 1990

Type: article

Abstract: Phytochrome and the blue ultraviolet-A photoreceptor control light-induced expression of genes encoding the chlorophyll a/b binding protein of photosystem II and photosystem I and the genes for the small subunit of the ribulose-1,5-bisphosphate carboxylase in etiolated seedlings of Lycopersicon esculentum (tomato) and Nicotiana tabacum (tobacco). A ;high irradiance response' also controls the induction of these genes. Genes encoding photosystem II- and I-associated chlorophyll a/b binding proteins both exhibit a transient rapid increase in expression in response to light pulse or to continuous irradiation. In contrast, genes encoding the small subunit exhibit a continuous increase in expression in response to light. These distinct expression characteristics are shown to reflect differences at the level of transcription.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.93.3.990

Authors: Barbara Wehmeyer, Anthony R. Cashmore, Eberhard Schäfer

Institution: University of Pennsylvania

Language: English

Topic: Light effects on plants

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: green

Funders: U.S. Department of Energy, Deutsche Forschungsgemeinschaft, National Institutes of Health