Related Experiment Videos
Maize pyruvate decarboxylase mRNA is induced anaerobically
1School of Biological Sciences, University of Nebraska, Lincoln 68588-0118.
Plant Molecular Biology
|August 1, 1989
Summary
Researchers identified a maize pyruvate decarboxylase (PDC) gene. This gene is anaerobically induced and present in low copy numbers in maize, offering insights into plant anaerobic metabolism.
Area of Science:
- Plant molecular biology
- Enzymology
- Genetics
Background:
- Pyruvate decarboxylase (PDC) is crucial for anaerobic fermentation in plants.
- Understanding maize PDC gene regulation is important for crop resilience.
Purpose of the Study:
- To identify and characterize the maize pyruvate decarboxylase (PDC) gene.
- To investigate the expression patterns and genomic organization of the maize PDC gene.
Main Methods:
- Oligonucleotide-based cDNA identification by comparing bacterial and yeast PDC sequences.
- Protein sequence analysis and immunological precipitation using maize PDC-specific antiserum.
- Northern and Southern blot analyses to study gene expression and copy number.
Main Results:
- A cDNA encoding a 65 kDa protein similar to bacterial and yeast PDC was identified.
- The identified protein was confirmed as maize PDC via specific antiserum precipitation.
- Maize PDC mRNA is induced under anaerobic conditions.
- The maize PDC gene exists in a single or low copy number within the genome.
Conclusions:
- A novel maize pyruvate decarboxylase (PDC) gene has been characterized.
- Maize PDC expression is regulated by anaerobic induction.
- The low copy number suggests a specific and essential role for this gene in maize.