D - dicotyledon 中文 - EN166

dicotyledon n.雙子葉植物。adj.-ous

dicoumarin
These results show that coda gene cloned from e . coli can express specifically in the anther of both monocotyledon and dicotyledon plant species upon induction of 5 - fc , and the in vivo expression product of the gene can transform the 5 - fc used externally into 5 - fu , which leads to all or partial inactivity of anthers and / or pollens 以上結果表明， coda基因在單子葉植物和雙子葉植物花藥中的特異性表達，能將外用的5 - fc在體內轉化為5 - fu ，導致花藥或花粉的部分和全部失活。
( 4 ) the tubiform petal of p . suffruticosa andr . and paeonia lactiflora pall , is a special petal which only has been occurred in the highflower of pralification flower of the above two species . the petal is similar to corolla of some family of sympetalous dicotyledon in shape , however it has a more thin base and many different lobes in form and size （ 4 ）在對臺閣花型的研究中新發現了一種特殊的花瓣一筒狀花瓣，它具有筒狀結構，外形類似于一些合瓣花類植物的花冠，但筒的基部更細，向上變粗，口部邊緣變化較大，具形狀和大小各異的裂片，有的呈喇叭形，有的呈鐘形，筒內壁上有時具一頂部游離的芒狀物。
Monocotyledons and dicotyledons are so termed because they normally conatin one and two cotyledons respectively although there are exceptions 盡管有例外的情況出現，我們通常還是根據子葉的數目為一片還是兩片而把植物分成單子葉植物和雙子葉植物。
Angiosperms are divided into two major classes , the monocotyledons ( monocotyledonae ) and dicotyledons ( dicotyledonae ) , with a small basal group known as primitive dicotyledons 被子植物可以劃分為兩個綱，單子葉植物綱和雙子葉植物綱。
Some 60 of monocotyledons and 40 of dicotyledons are polyploid , as are 90 of ferns , many bryophytes , and some algae 60的單子葉植物和40的雙子葉植物、 90的蕨類植物、多數苔蘚植物以及某些藻類，都是多倍體。
A clearly defined endodermis is seen in all roots and in the stems of the non seed - bearing vascular plants and some dicotyledons 所有不產生種子的維管植物和一些雙子葉植物的莖中都可以清楚的顯示出這一結構。
Astrosclereid an irregularly branched sclereid found in the messophyll of leaves of certain dicotyledons 星狀石細胞：在一些雙子葉植物的葉肉細胞中發現的一種不規則的分枝狀的石細胞。
Dicotyledons usually show a netlike arrangement whereas monocotyledons generally show a parallel distribution of vein 雙子葉植物主要為網狀脈，而單子葉植物主要為平行脈。
The dicotyledons diverged at an early stage of their evolution into two main groups . 雙子葉植物在演化的早期階段就已分化為兩大支派。
All trees except palms are dicotyledons . 除了棕櫚樹，所有的樹都是雙子葉植物。