Discontinuities in the callose wall, intermeiocyte connections, and cytomixis in angiosperm meiocytes
- 1 June 1974
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 52 (6) , 1219-1224
- https://doi.org/10.1139/b74-157
Abstract
Discontinuities, considered to be holes, were observed in the meiocyte callose wall of 25 dicotyledon and 5 monocotyledon taxa investigated by phase-contrast and Nomarski interference-contrast optics. With the exception of the Helianthus spp., where regular distribution was observed, the holes were confined to two to four discrete areas of the callose wall. Hole size was highly variable; the largest, of about 2 μm diameter, occurred in lupin (Lupinus polyphyllus Ldl.). Cytoplasmic connections between neighboring meiocytes and (or) cytomictic phenomena were observed in 13 of the 30 taxa investigated.Keywords
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