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[Scanning electron microscope observation on endosperm starch grain characters in multiplasmic maize]
Yi Chuan Xue Bao = Acta Genetica Sinica
|December 10, 1999
Summary
Different maize cytoplasms significantly alter endosperm starch grain characteristics. Sweet corn lines exhibit spherical, tightly packed grains, while male-sterile lines show irregular, loosely packed grains, impacting seed quality.
Area of Science:
- Plant Science
- Genetics
- Agronomy
Context:
- Maize (Zea mays) genetics involves understanding cytoplasmic effects on plant traits.
- Endosperm starch composition is crucial for seed quality and agricultural applications.
Purpose:
- To investigate the impact of diverse cytoplasms on maize endosperm starch grain morphology.
- To correlate starch grain characteristics (shape, size) with seed quality traits.
Summary:
- Scanning electron microscopy revealed distinct endosperm starch grain patterns in eleven multiplasmic maize lines.
- Sweet corn cytoplasmic lines (su1, sh2, btl) displayed spherical, tightly packed starch grains.
- Cytoplasmic male sterility (CMS) lines (T, S, C, 21A) generally showed irregular, loosely packed grains, with notable exceptions like CMS-T Mo17.
Impact:
- Findings highlight cytoplasm-specific variations in maize starch grain structure.
- This research provides insights into the relationship between starch properties and seed quality.
- The study contributes to advancing maize genetics and breeding strategies.