Cytological Effects of Protoanemonin on the Root Tip of Zea Mays

Protoanemonin, a relatively simple, highly unsaturated lactone, has pronounced cytological effects on the root tip of Zea Mays. It inhibits mitosis in a manner quite different from that of colchicine. After treatment most of the nuclei appear to be in interphase or early prophase. A small proportion...

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Bibliographic Details
Published in:American journal of botany 1949-04, Vol.36 (4), p.317-322
Main Authors: Erickson, Ralph O., Rosen, Gloria U.
Format: Article
Language:English
Subjects:
Anaphase
Cell walls
Cytoplasm
Furans
Meristem
Metaphase
Mitochondria
Mitosis
Old Medline
Prophase
Root tips
Stem cells
Vacuoles
Zea mays
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Summary:Protoanemonin, a relatively simple, highly unsaturated lactone, has pronounced cytological effects on the root tip of Zea Mays. It inhibits mitosis in a manner quite different from that of colchicine. After treatment most of the nuclei appear to be in interphase or early prophase. A small proportion are in a condition resembling late prophase, but there are no metaphases, ariaphases or telophases. Treatment with protoanemonin also leads to disappearance of the mitochondria, and appears to be injurious to cytoplasmic and vacuolar structure. The effect on mitochondria occurs at a lower concentration level than that required to show nuclear effects.
ISSN:0002-9122
1537-2197
DOI:10.1002/j.1537-2197.1949.tb05266.x