花瓣

Petals basally connate; androecium and gynoecium subequal to petal length species nos.

花瓣基部合生；雄蕊群和雌蕊群近等长于花瓣长度种类号。

In model plant, Antirrhinum majus, CYCLOIDEA and DICHOTOMA have been shown expressed in dorsal petals and co-activate RADIALIS.

再加上RAD与腹侧花瓣促进基因DIVARICATA 相互拮抗，而使DIV无法作用在背侧花瓣，最后促成金鱼草成为两侧对称花型。

Racemes (1–)3–8(–11) per branchlet; petal margins thickened and apically fimbriate; persistent style 3–6 mm; petals 3–5 mm.

总状花序(1-)3-8(-11)每小枝；花瓣边缘加厚和顶部流苏状；宿存花柱3-6毫米；花瓣3-5毫米 5

Sepals 3(or 5); lateral sepals free or connate, margins entire or serrate; lower sepal large, petaloid, usually navicular, funnelform, saccate, or cornute, tapering or abruptly constricted into a nectariferous spur broadly or narrowly filiform, straight, curved, incurved, or ± coiled, swollen at tip, or pointed, rarely 2-lobed, rarely without spur. Petals 5, free, upper petal flat or cucullate, small or large, often crested abaxially, lateral petals free or united in pairs. Stamens 5, alternating with petals, connate or nearly so into a ring surrounding ovary and stigma, falling off in one piece before stigma ripens; filaments short, flat with a scalelike appendage inside; anthers 2-celled, connivent, opening by a slit or pore.

萼片3(或5)；侧萼片离生或者合生，边缘全缘或者有锯齿；更低的萼片大，瓣状，通常舟形，漏斗状，囊状，或具角状突起，渐减突然或缢缩进一分泌蜜汁具距或宽狭丝状，花瓣5，离生，上面的花瓣平坦的或者兜状，雄蕊5，与花瓣互生，合生或者近合生成环而围绕子房和柱头，在柱头成熟之前完整地从上面落下；花丝短，扁平，在里面的有一鳞片状附属物；花药2室，靠合，通过一条裂缝或者孔开裂。

Petals 3, very unequal; middle petal enlarged to form a labellum; lateral petals small, apex often aristate.

花瓣3，非常或不相等；中间花瓣扩大形成唇瓣；侧花瓣小，先端通常具芒。

Petals alternisepalous,(2-)4, absent in female flowers of some Myriophyllum , imbricate, longer than sepals, often deciduous with stamens.

花瓣与萼片互生，(2-)4，但是Myriophyllum的一些种类雌花无花瓣，花瓣覆瓦状排列，比萼片长，通常与雄蕊一起脱落。

A F2 population derived from a cross between apetalous line' APT02 'and normal petalled cultivar 'ZS NO.4' was used for molecular markers and mapping of the gene controlling petal-loss trait in Brassica napus.20 pairs of AFLP primers and 170 pairs of SRAP primers were selected between two parents.

在无花瓣品系APT02和正常有花瓣品种中双4号构建的的F2分离群体中，运用AFLP和SRAP两种标记技术对甘蓝型油菜花瓣缺失基因进行分子标记和图谱定位。

By means of three years investigation of peach-blossom cultivars found in Beijing, and based on the classification system of flower culti-vars presented by professor Chen Junyu, the author uses the branching habit as the first classification criterion, flower-form as the second criterion, and flower-color, number of petals and calyces as the third criterion.

作者在北京市桃花品种调查的基础上，以枝姿作为第一级分类标准；以花型作为第二级分类标准；以花色、花瓣数、花萼数等作为第三级分类标准。并将花瓣5枚的定为单瓣；花瓣10—40枚的定为复瓣；40枚以上的定为重瓣。

Five floral organ identity genes of Mussaenda pubescens were cloned and their expression patterns among different organs were detected by RT-PCR. The AP1 homologue, MupAP1, is expressed in enlarged and small sepals, petals and stamens, carpels and fruits; the SEP3 homologue, MupSEP is strongly expressed in all floral organs and weak in leaves as well. Two of the B class gene, AP3 homologue MupDEF and TM6 homologue MupTM6, were detected expressed in all floral organs, however, the other B class gene, MupGLO, homologous to PI, were detected expressed in small sepals, petals and stamens, carpels and fruits, but not in enlarged sepals.

本论文选殖出五个毛玉叶金花花器同源基因，其中A群基因AP1的同源基因MupAP1在两型花萼、花瓣及雄蕊、心皮、果实中有表现，E群基因SEP3的同源基因MupSEP则在所测部位均有表现，B群基因中，AP3的同源基因MupDEF及TM6的同源基因MupTM6在两型花萼、花瓣及雄蕊、心皮及果实中均有表现，另一个B群基因，PI的同源基因MupGLO则在花瓣及雄蕊、心皮、果实及小花萼中有表现，但在膨大花萼中并没有侦测到表现。

In SGK321 with expression of CpTI and Bt insecticidal protein genes, both petal and leaf showed significantly higher insect resistant activity than bud and boll heart.

结果表明：7月中旬两种转基因抗虫棉抗虫效果均较好，尤其是CpTI-Bt棉棉叶和花瓣对4龄幼虫3天内致死率为92%以上；8月中旬两种转基因棉的抗虫活性均明显降低，且Bt棉的杀虫活性显著低于CpTI-Bt棉，其幼虫死亡率与对照受体棉中16的死亡率之间无显著差异，仅显著抑制了幼虫的生长；石远321(SGK321受体品系)的花瓣具有一定的抗虫活性，可显著降低取食幼虫的体重，甚至造成部分幼虫死亡；CpTI-Bt棉中，花瓣和棉叶的抗虫性明显高于蕾和铃心。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。