Studies on the Roots of Musa acuminata cv. Gros Michel

Abstract

The anatomy of the adventitious roots of Musa acuminata cv. Gros Michel is described. Interesting anatomical features are the occurrence of lysigenous lacunae in the cortex and the presence of very large metaxylem vessels and internal phloem strands in the stele. The organization of the root meristem is considered in terms of present concepts. Histological preparations and autoradiographs suggest the existence of an area of relative quiescence in the meristem. The use of modified histogen terminology in describing the apex is recommended. The development of the tissue systems is also described with emphasis on the differentiation of the vascular tissue.