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Plants usually less than 20 cm tall; lobes of lower corolla lip distinctly emarginate; basal leaves many; inflorescences dense

植株通常20厘米高的不到;清楚的更低的花冠唇的裂片微缺;基生叶很多;花序紧密 139c subsp。

Plants usually 20--40(--45) cm tall; lobes of lower corolla lip indistinctly emarginate; basal leaves fewer; inflorescences interrupted.

通常的植株20-40(-45)厘米高;不清楚的更低的花冠唇的裂片微缺;基生叶更少;花序间断。

Nicotianamine synthase gene has an important function in the Fe-deficiency response of graminaceous monocots, and it catalyzes substance to nicotianamine which plays an important carrier in the internal transport of Fe(superscript 2+) and other divalent metal ions. Nicotianamine can bind with Fe(superscript 2+) to form Fe(superscript 2+)-NA complex and protect plants from toxicity in acidic soil.

烟酰胺合成酶基因在单子叶禾本科的缺铁胁迫应答反应中起着关键作用,它的催化产物烟酰胺是铁及其他二价金属离子在体内吸收和转运的重要载体,且能与Fe(上标 2+)结合形成Fe(上标 2+)-NA复合物,从而使植物在酸性土壤中免受铁毒害。

Detail of young leaves and growing point; many leaves reduced to bare midrib or narrow green

缺锰甘蓝的鞭尾症:关键在于嫩叶和生长点,许多叶片露出中脉或缩小成绿色波状的薄层残留,心叶和生长点变褐并死亡,顶部周围有大量绿色长有托叶的叶片。

Unripe nog of ground of big Xie La is well-balanced, the errant bud that blade notch is in is easy air plant, blossom new individual plant, this kind of unique multiply kind, often arouse the interest of people.

大叶落地生根株匀称,叶片缺刻处的不定芽易落地生根,长成新株,这种独特的繁衍方式,常引起人们的爱好。

Synflorescences in the apex of the branches, flower yellow, ligule floret 1 (rarely 2), pappus absent.

近缘,它们的共同特征是花序托无托片;不同点在于黄菊属叶对生或交互对生,常基部连合,头状花序在枝顶聚集成平顶形的伞房状或近球形的复合花序,花黄色,舌状花1(-2),冠毛缺。

Leaf base with a broad sinus; flower buds broadly ovate; corolla glabrous; stigma head conical, not exserted from corolla tube; follicles puberulent, muricate, or rugose

叶基部具一宽的凹缺;花芽宽卵形;花冠无毛;圆锥状的柱头头状花序,并非从花冠筒外露;被微柔毛,粗糙的蓇葖果,或具皱纹 2 Metaplexis hemsleyana 华萝

In addition, we found that 4-phenyl-l,2,4-triazolinium N-ylides reacted withvarious electron-deficient olefins to afford pyrrole derivatives in good yields via 1,3-dipolar cycloaddition oxidative ring fission, In some cases, tetrahydropyrrolo[1,2-b]triazole and pyrrolo[1,2-b]triazole, which are stable and are not aromatized orcleaved in the reaction conditions, could be isolated, This is a facile and novel route forthe synthesis of pyrrole derivatives.

此外,本文研究了五员三氮杂环化合物4-苯基1,2,4-三氮唑的N-叶立德,发现在氧化剂存在下与缺电子烯烃发生1,3-偶极环加成反应生成的吡咯并[1,2-b]三氮唑,在大多数情况下开环生成吡咯衍生物,反应条件温和,收率良好,是合成吡咯衍生物的一个新的途径。

All ofthese reactions were carried out under mild conditions and are new effective methodsfor the preparation of indolizine derivatives. The reaction of phthalazinium and quinoxalinium N-ylides with electron-deficientolefins in the presence of oxidants have also been studied, it has been found that activemanganese dioxide could behave as a dehydrogenating oxidant. Pyrrolo[2,1-a]phthalazines and pyrrolo[1,2-a]quinoxalines are obtained in this way.

本文还对六员二氮杂环化合物酞嗪和喹喔啉的N-叶立德在氧化剂存在下与缺电子烯烃的l,3-偶极环加成反应作了研究,发现活性二氧化锰也是一个优良的氧化剂,并分别合成得到了吡咯并[2,1-a]酞嗪和吡咯并[1,2-a]喹喔啉衍生物。

Japonica and 1.3 cm of U.pinnatifida which showed heterosis in growth during the temporarily sea cultivaton. The phenotypic character of F_1 juvenile sporophyte of L.japonica♀×U.pinnatifida♂was similar to that of the female parent, namely, L.japonica which generated no rudiments of the pinnate lobations.

海带♀×裙带菜♂杂交组合的受精率为20-33%,在暂养期间F_1幼孢子体达到2.2 cm,大于海带、裙带菜幼孢子体的1.8 cm和1.1 cm,表现出生长优势;F_1幼孢子体表现出母本海带的性状,无裂叶缺刻雏形的形成。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力