有毒的矿物质首先被根部吸收，然后转移到茎和叶上。
Toxic minerals would first be absorbed by roots but later relocated to the stem and leaves.
此前研究人员曾报告称，虽然植物没有大脑，但它们的茎和叶发出的电信号还是触发了类似于意识的反应。
Though plants lack brains, the firing of electrical signals in their stems and leaves nonetheless triggered responses that hinted at consciousness, researchers previously reported.
茎和叶的表皮细胞外壁还有角质层。
The outer wall of epidermal cells of stem and leaf has the thicker cuticle.
有些草皮品种长有茎和叶。
茎和叶可以用作烹饪调味品，但必须在食用前去除。
The leaves and stem can be used in cooking for flavor, but must be removed before eating.
土豆植物的茎和叶是有毒的，甚至土豆本身也是有毒的。
The stem and leaves of the plant are toxic, and even the potato itself is toxic.
当玉米粒和甘蔗的汁液被分离用于制糖后，总会残留下大量的茎和叶。
Once corn kernels and sugar-cane SAP have been taken away for sugar, they leave plenty of stalks and leaves behind.
虽然果肉本身不含毒素，但其茎和叶却饱含一种叫做配糖生物碱的化学物质。
Though the fruit itself doesn't contain poison, the stem as well as the leaves contain a chemical known as glycoalkaloid.
一旦你确定铁线莲是得了枯萎病，并且已经造成了永久损害，除掉所有受损和死亡的茎和叶。
Once you have determined the clematis has wilt and has sustained permanent damage, remove all the damaged leaves and stems including those that have fallen.
坏处：除了对西红柿的喜爱，西红柿的茎和叶含有生物碱苷，这种有毒物质会导致头疼、胃疼、呼吸衰竭以及麻木。
The bad: Beyond the heartburn of the tomato itself, tomato stems and leaves contain glycoalkoloids, a poison that causes headaches, stomach aches, cases of respiratory depression, and loss of feeling.
于是从2002年到现在，维京猪再度蓬勃发展，价格也大幅回升到和品质相符的价格，品质指的是瓶子的形状和颜色，茎和叶。
Then Viking boomed once again from 2002 till now. The price raises tremendously up to their quality; that means shape and colour of the pitchers, stem and leaves.
磺酰脲类除草剂可被植物的根、茎和叶强烈吸收，并在植株内迅速传导转移和代谢，快速代谢失活是作物对该类除草剂的选择性基础。
Sulfonylurea herbicide can be absorbed by roots, stetro and leaves, and rapidly transported and metabolized in plants. Rapid metabolize is the basis of selectivity of this kind of herbicide.
那么这些细胞是如何分化并形成像根、茎、叶和果实那样不同的结构的呢？
How then can these cells differentiate and form structures as different as roots, stems, leaves, and fruits?
植物的祖先是进行光合作用的单细胞生物，由此产生的植物可能缺乏真正的根、茎、叶和复杂的生殖结构，如花朵。
The ancestors of plants were photosynthetic single-celled organisms that gave rise to plants presumably lacked true roots, stems, leaves, and complex reproductive structures such as flowers.
把马齿苋想成是生菜的一个伟大的替代品：叶和茎是脆的、耐嚼、多汁，而且它们有淡淡的柠檬味。
Think of purslane as a great alternative to lettuce: the leaves and stems are crisp, chewy, succulent, and they have a mild lemony taste.
倡导者们声称纤维素(组成植物的根、茎、叶和木材)如果能够被恰当处理，就能够成为玉米中所含的淀粉的替代物。
Boosters claimed that cellulose, from which the stalks, leaves and wood of plants are made, could if suitably treated become a substitute for the starch in corn.
把马齿苋想成是生菜的一个伟大的替代品：叶和茎是脆的，耐嚼，多汁，而且它们有淡淡的柠檬味。
Think of purslane as a great alternative or addition to lettuce: the leaves and stems are crisp, chewy, and succulent, and they have a mild lemony taste.
而玉米秸秆，即收割玉米后留在庄稼地里的叶、茎和棒子芯，都无法得到利用。
Corn stover — that is, the leaves, stalk and cobs from the corn left in the field after harvest — cannot be made into ethanol.
清洗再弄干瑞士甜菜，然后把叶和茎切成到1英寸大小。
Wash and dry a bunch of Swiss chard, and then chop the leaves and stems into 1-inch pieces.
把三磅盐混合在一加仑的肥皂水里，用喷雾器喷洒到叶和茎上，会杀死这种顽强的有害物。
Three pounds of salt mixed with a gallon of soapy water, applied to the leaves and stems of poison ivy with a sprayer, will kill this tenacious pest of a plant.
在中国，烟粉虱传播烟草曲茎病毒和番茄黄曲叶病毒，这些病毒在B生物型入侵前便有之，但新的生物型在感染该等病毒的植株上活得尤为“有滋有味”。
curly shoot virus and tomato yellow leaf curl virus. These predatethe arrival of biotype B, but the new arrival does particularly well on plants infected by them.
高峰期前，用促进茎、叶生长和延长有效光合作用时间的方法，能在生长后期提高块茎的产量和秋水仙碱的含量。
The yield of tuber and colchicine content could be increased by means of promoting the growth of stem and leaves and elongating the effective photosynthetic time before the peak appeared.
美洲一种结红果的山楂，叶和茎密被短绒毛。
American red-fruited hawthorn with stems and leaves densely covered with short woolly hairs.
本种在茎的分枝，叶形，叶缘，和花序梗长度方面显示了巨大变化性。
This species shows great variability in stem branching, leaf shape, leaf margin , and peduncle length.
这周我们学习的是植物，我们学习了植物的各个部分：根，茎，叶和花朵。
This week we have been working on plants. We learned the part of the plant: roots, stems, leaves, and flowers.
亚洲的植物，具有一丛可以吃的白茎和暗绿色的叶。
Asiatic plant grown for its cluster of edible white stalks with dark green leaves.
一种植物病，通常由真菌引起，在植物的叶和茎上产生小斑点。
A plant disease, usually caused by fungi, that produces minute spots on leaves and stems.
一种植物病，通常由真菌引起，在植物的叶和茎上产生小斑点。
A plant disease, usually caused by fungi, that produces minute spots on leaves and stems.
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