pentarch การใช้

1 . the study of comparative anatomy on the structure of seedlings of acorus tatarinowii and zantedeschia aethiopica suggested a . tatarinowii was more primitive " x " - shape mesarch haplostele , while z aethiopica atactostele ; the actinostele of root of the former was di - to octoarch , but the latter only di - to pentarch ; the pattern of endothecial wall thickening in a . tatarinowii was characteristic of five - face thickened and contained passage cell , while z . aethiopica four - faced thickened and known as casparian strip