actinostele 中文意思是什麼
actinostele
解釋
星狀中柱-
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
通過對石菖蒲和馬蹄蓮幼苗結構的比較解剖學研究，發現石菖蒲幼苗的子葉節區下部為原始的中始式二原型的「工」字形的單中柱，而馬蹄蓮為散生中柱；石菖蒲根的維管柱為2 - 8原型星狀中柱，馬蹄蓮為2 - 5原型星狀中柱。石菖蒲根的內皮層細胞壁為馬蹄形五面加厚；而馬蹄蓮為凱氏帶四面加厚。
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