phloem strand 中文意思是什麼
phloem strand
解釋
韌皮束-
Haplostele a type of protostele having a solid strand of stele with the xylem on the inside encircled by phloem, pericycle, and endodermis
單中柱:原生中柱的一種類型,是由韌皮部、中柱鞘和內皮層包圍著內方的木質部構成的實心中柱。 -
Roots also differ from roots in the arrangement of xylem and phloem, having a solid central strand of vascular tissue rather than a hollow cylinder of conducting tissue
根和莖不同,它無葉綠素,沒有芽和葉,木質部和韌皮部的排列順序也不同,其內部為實心的維管組織,而莖的內部為中空的圓柱形輸導組織。
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