Work

Induction of mRNA for Phosphoenolpyruvate Carboxylase Is Correlated with a Decrease in Shoot Water Content in Well-Irrigated Mesembryanthemum crystallinum

Year: 1992

Type: article

Abstract: The abundance of mRNA specific for phosphoenolpyruvate carboxylase (PEPCase) was measured in leaves from well-watered plants of Mesembryanthemum crystallinum. Plants grown side by side in pots of four different volumes (0.16, 0.74, 2.6, 6.5 liters) were compared. The time of increase in the steady-state level of PEPCase mRNA in well-watered plants was dependent on soil volume. The larger the pot, the later PEPCase transcripts were increased. PEPCase mRNA induction started when shoot water content decreased to well below 4000% of dry weight. No positive correlation with the developmental status of the plants could be found. The data indicate that PEPCase mRNA induction in well-watered plants up to 10 weeks of age is controlled environmentally rather than developmentally.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.99.2.759

Authors: Jürgen M. Schmitt, Mechtild Piepenbrock

Institution: Freie Universität Berlin

Language: English

Topic: Plant Stress Responses and Tolerance

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: green

Funder: Deutsche Forschungsgemeinschaft