A CYTOLOGICAL STUDY IN POLLEN ABORTION IN C-CYTOPLASMIC MALE-STERILE CORN ( ZEA MAYS, L. )

doi:10.3321/j.issn:1000-7091.1987.01.001

Abstract

Abstract: The development processes of anthers and microspores of C-cytoplas-mic male-sterile lines and its maintainers in corn were observed and compared by the light and the electron microscope. The results of the study showed that the earliest abortion of the C-microspores occurred in the young microspore stage, their full abortion occurred in the miol-1-nucleate microspore stage, and the disintegration of the tapetum occurred before flowering stage. At the young microspore stage, numerous "cup shaped" plastids can be observed in the C-tapetal cells. The mainly cytological reason resulting the abortion is the abnormal function of the tapetal cells.

Key words: Corn, C-cytoplasmic male sterility inbred, Pollen abortion maintainer, Microspore development

Chen Weicheng, Li Guizhen. A CYTOLOGICAL STUDY IN POLLEN ABORTION IN C-CYTOPLASMIC MALE-STERILE CORN ( ZEA MAYS, L. )[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1987, 2(1): 1-6. doi: 10.3321/j.issn:1000-7091.1987.01.001.

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