pericycle 中文意思是什麼
pericycle
解釋
n. 名詞 【植物；植物學】中柱鞘。adj. 形容詞 -cyclic
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Surrounding the central cylinder is the pericycle.
圍繞中柱的是中柱鞘。 -
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。 -
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，側根正對著木質部發生； （ 2 ）幼根內皮層細胞具凱氏帶加厚，維管柱內緊挨中柱鞘內側具有2 ~ 4層大型薄壁細胞； （ 2 ）根中無髓和樹脂道； （ 4 ）次生結構發生於根毛區，維管形成層由初生木質部和初生韌皮部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 ）次生韌皮部有石細胞，次生木質部射線發達。 -
Lateral root any root that arises from the pericycle of another root
側根：起源於根的中柱鞘的根。 -
The stele includes all primary tissues derived from the procambium consists of pericycle，phloem and xylem.
中柱包括從原形成層衍生而來的全部初生組織，由中柱鞘、韌質部和木質部組成。
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