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Amylase isozyme polymorphism in maize.

J G Scandalios1

  • 1AEC Plant Research Laboratory, Michigan State University, East Lansing.

Planta
|February 22, 2014
PubMed
Summary
This summary is machine-generated.

Genetic stocks of Zea mays exhibit amylase isozyme polymorphisms detectable via starch gel electrophoresis. Hybrid enzymes suggest altered electrophoretic mobilities in specific F1 hybrids.

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Area of Science:

  • Plant genetics
  • Biochemistry
  • Molecular biology

Background:

  • Amylase isozyme patterns can vary within plant genetic stocks.
  • Understanding enzyme activity during germination is crucial for plant development studies.

Purpose of the Study:

  • To investigate amylase isozyme polymorphisms in Zea mays.
  • To characterize amylase activity during seed germination and in adult plants.
  • To analyze hybrid enzyme formation in Zea mays F1 hybrids.

Main Methods:

  • Starch gel electrophoresis was employed to detect amylase isozymes.
  • Amylase activity was monitored from the second day post-germination.
  • Enzyme activity was assessed in various tissues of adult Zea mays plants.

Main Results:

  • Amylase activity was first detected on the second day after germination, with optimal resolution on the third day.
  • No amylase activity was observed in tissues from adult plants.
  • Unique hybrid patterns were identified in F1 hybrids, including evidence of intermediate zones and novel enzyme forms.

Conclusions:

  • Amylase isozyme polymorphisms are present in Zea mays genetic stocks.
  • Hybrid enzyme formation, potentially with altered electrophoretic mobilities, occurs in specific F1 hybrids.
  • Amylase activity is transient and primarily associated with early germination stages in Zea mays.