無維韌皮部 的英文怎麼說

中文拼音 [wéirèn]
無維韌皮部 英文
leptome
  • : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
  • : Ⅰ動詞1 (連接) tie up; hold together; link 2 (保持; 保全) maintain; safeguard; preserve; keep ...
  • : 形容詞(不易折斷; 柔軟而結實) pliable but strong; tenacious; tough
  • : Ⅰ名詞1 (人或物體表面的一層組織) skin 2 (皮革) leather; hide 3 (毛皮) fur 4 (包在外面的一層...
  • : Ⅰ名詞1 (部分; 部位) part; section; division; region 2 (部門; 機關或組織單位的名稱) unit; mini...
  • 皮部 : cutaneous area
  1. We have observed the following characteristics of anatomical structure and development : ( 1 ) the primary roots belong to archetype and the lateral roots occur in the position toward the xylem of the vascular cylinder ; ( 2 ) the root endodermis consists of thicken casparian strips, and there are from two lo four layers parenchyma cells near the pericycle ; ( 3 ) the pith and resins canals are absent in the toots ; ( 4 ) secondary structure occurs in the root hair zone, and vascular cambium is formed from the parenchyma cells between the primary xylem and primary phloem ; ( 5 ) tanning materials are abundant in pericycle cells and phelloderm cells ; ( 6 ) sclereids are found in secondary phloem, and rays are rather rich in secondary xylem

    結果表明:氣生不定根具有以下結構特徵和發育特點: ( 1 )根為二原型,側根正對著木質發生; ( 2 )幼根內層細胞具凱氏帶加厚,管柱內緊挨中柱鞘內側具有2 ~ 4層大型薄壁細胞; ( 2 )根中髓和樹脂道; ( 4 )次生結構發生於根毛區,管形成層由初生木質和初生之間的薄壁細胞轉化形成; ( 5 )中柱鞘和栓內層細胞富含單寧類物質; ( 6 )次生有石細胞,次生木質射線發達。
  2. 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,它葉綠素,沒有芽和葉,木質的排列順序也不同,其內為實心的管組織,而莖的內為中空的圓柱形輸導組織。
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