primary phloem 中文意思是什麼
primary phloem
解釋
初生韌皮部-
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。 -
Primary phloem phloem derived from the procambium in the young plant
初生韌皮部：指幼嫩植物中來源於原形成層的韌皮部。 -
Protophloem the first - formed primary phloem, differentiated from the procambium in the region just behind the meristem
原生韌皮部：最早形成的初生韌皮部，由位於分生組織中的原形成層分化而來。 -
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。 -
The secondary phloem parenchyma cells and secondary phloem ray parenchyma cells were the preferential sites for protein storage to the xylem parenchyma cells whereas a large amount of vegetative storage proteins was present in xylem, especially in the primary xylem and the inner secondary xylem of the extended stems
營養貯藏蛋白質優先在次生韌皮部的韌皮薄壁細胞和韌皮射線薄壁細胞中積累，在新梢伸長生長停止后，新梢基部莖的木質部中也積累了相當數量的營養貯藏蛋白質，主要分佈在初生木質部和內側次生木質部的各種生活的薄壁細胞中。 -
More anthraquinone compounds was distributed in pith ray cells and the tissues of mature stem suchas bundle sheaths in large - scale vascular bundle, primary phloem and primary xylem than that in young stem. [ conclusion ] the distribution of anthraquinone compounds in the stem was of multilocus
結果隨著莖的不斷成熟，在莖的表皮、近表皮的1 ~ 2層皮層細胞及較內部皮層中，不同程度地增加貯藏和積累了一定數量的蒽醌類化合物，成為莖外部貯藏和積累蒽醌共化合物的主要結構部位成熱莖大型維管束的維管束鞘、初生韌皮部、初生木質部等組織和髓射線細胞分佈了比幼莖多的蒽醌類化合物。
分享友人