Cytomixis in the Microsporogenesis of Vicia faba L. (Fabaceae)

DOI Web Site 被引用文献34件 参考文献43件
  • Haroun Soliman A.
    Department of Biological and Geological Sciences, College of Education, Tanta University
  • Al Shehri A. M.
    Department of Biological Sciences, College of Science, King Khalid University
  • Al Wadie H. M.
    Department of Biological Sciences, College of Science, King Khalid University

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Cytomixis has been observed in pollen mother cells of Vicia faba. Of all eight sites plant materials were collected and investigated, cytomixis has been noted in six. Four of these sites recorded high percentage of cytomixis, where the two other sites show low concentration of this phenomenon.<br>Cytomixis was observed to occur in forms of cytoplasmic connection and direct fusion. The first type is more frequent than second one. Both types of connections were observed in majority of stages of division. The amount of nuclear material transferred from cell to another was variable from small fragments to the entire complement based on the nature of connection.<br>Abnormalities were observed in all sites investigated. Close relationship is clear between the percentage of this parameter and the percentage of cytomixis. The percentage of pollen fertility is clearly affected by cytomixis and abnormalities. Causes of cytomixis in the present study almost refer to environmental stress and pollution.

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