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During the process of long-time adaptive evolution, wetland plants adopted a series of special strategies to acclimate to salt stress. The main strategies are: 1 life history adjustment, e. g., to adjust seed germination time, implement seed dormancy and viviparity, and change reproductive manner to escape from direct salt stress, 2 morphological adjustment, e. g., to adjust biomass allocation pattern, age stem, defoliate, and carnify vegetative organs to isolate the redundant Na(superscript +) to the inactive-metabolism shoots or exclude the Na(superscript +)from tissues; 3 anatomic adjustment, e. g., to sink stoma, develop aerenchyma, and thicken cuticle and phellogen to maintain normal photosynthesis and respiration; 4 physiological and biochemical adjustment, e. g., to exclude and excrete salt, compartmentalize ions, adjust osmosis, do selective absorption, regulate hormones, and induce antioxidative enzymes to maintain the osmotic equilibrium and eliminate the active oxygen in cell; and 5 molecular level adjustment, e. g., to start up many salt-induced genes to regulate the metabolic responses to salt stress.

在长期的适应进化过程中,湿地植物形成了多种适应盐胁迫的策略,主要有:1生活史方面,植物可通过种子萌发时间的调整、种子体眠、胎生、繁殖方式的改变等逃避盐度的直接伤害;2形态学方面,植物可通过生物量分配模式的调整、茎的老化、落叶及营养器官的肉质化等将多余的Na隔离到代谢不活跃的茎中或将其排出体外;3解剖学方面,植物可通过气孔下陷、发达的通气组织、增加细胞木栓层、角质层及栅栏组织的厚度等以维持植物正常的光合作用和呼吸作用;4生理生化方面,植物可通过离子区隔化、拒盐、泌盐、选择性吸收、渗透调节、激素调节及抗氧化物酶的诱导等来维持细胞内正常的渗透压,清除胞内活性氧分子;5分子水平方面,植物可通过多种与盐胁迫相关的基因来调控细胞内的多种代谢反应。

The distribution of the qualitative characters The performance of the 39 chief qualitative characters were observed and recorded,according to the test method of morphological characters in the .The results of distribution proportion of each character in cultivars group showed that the distribution of 32 characters(number of ray flower rings,floret curliness,shape of leaf base,size of stipule and so on) were very asymmetrical with near or above 70%cultivars concentrated upon one or two performance, however,the distribution of the other 7 characters(floret type,surface color of outer floret,back color of outer floret,color of disc floret,claw in base of sinus between lateral lobes,stem erectness and stem color) in the cultivars group were relatively symmetrical.

质量性状分布参照《菊花DUS测试指南》的形态性状测试方法,观察记录大菊39个主要质量性状的表现,计算各性状的表现式样在品种群内的分布比例,结果显示舌状花的重瓣性、花瓣曲反状况、叶片基部性状、托叶大小等32个性状的表现式样在品种群内分布极不均匀,接近或超过70%的品种集中在性状的1种或2种表现式样中;而花瓣形状、外花瓣表面色、外花瓣背面色、花中心部颜色、叶裂刻基部有无突起、茎的曲直性和茎色等7个性状的表现式样在品种群内的分布则相对均匀。4。

Clematis texensis flowers have unusual shape of an elongated jug or an egg, open at the top and made up of 4 fancifully twisted tepals. The outer side of the tepals can be anything from deep red to orange red, and the inner side is most frequently creamy yellow or pink-red but you can also find the scarlet ones. Leaves are blue-green. The plant is a climbing semi-perennial - only the base of the stems is woody. Stems reach up to 3 m and twine around the supports by leaf petioles

Clematis texensis的花有奇特的形状,有长水壶状或鸡蛋状,在顶端开花,花朵由4个反卷花瓣组成,花瓣外部从深红色到橙红色,内部一般是乳脂状的黄色或粉红色,也有鲜红色的,叶片青绿色,攀援植物,植株基部是木质化,茎长可达3米,通过叶柄缠绕支撑物生长。

Gull sb. out of sth.gull-like jaeger of northern seas.

有白霜的茎;有白霜的李子;有霜的葡萄。

Corm An organ of perennation and vegetative reproduction, consisting of a short erect fleshy swollen underground stem, usually broader than high and covered with membranous scales. It stores food material in the stem and bears buds in the axils of the scalelike leaf remains of the previous years ' growth.

球茎:球形或扁球形短而肥大的地下茎,节和节间明显,节上有退化的鳞片状叶和腋芽,顶端有一个显著的顶芽,茎内储藏着大量的营养物质,有繁殖作用。

The salty gland of Messerschmidia sibirica is developed from epidermic cell of stem and leaf.

利用石蜡切片法研究了砂引草茎叶的解剖结构,尤其是对泌盐腺的位置、泌盐腺的形态结构及泌盐腺的发生发育过程进行了系统的研究,结果表明:砂引草茎的初生结构维管束是外韧的,且其有10-12束,大小不等,髓和髓射线发达;叶的上下表皮细胞各一层,栅栏组织与海绵组织分化明显。

Stonoliferous herb of southwestern United States and Mexico having a pungent rootstock and small spicate flowers with white bracts suggesting an anemone.

美国墨西哥西南部草本植物,有辛辣的块状茎,长有有白色苞片的小穗状花,使人想起银莲花。

There seemed to have been grass paths here and there ,and in one or two corners there were alcoves of evergreen with stone seasts or tall moss-covered flower urns in them .

到处似乎都有草茎的痕迹,更有一两个角落由常绿植物围成的凉亭,内有石凳,或长满苔藓的高脚花翁。

On soil fungi, Fusarium root shell mold, Rhizoctonia, Pythium, Miao-rot fungus, Corticiumpathogens have a significant effect on the damping-off,diseases, damping-off, Fusarium wilt, Verticillium, Sclerotinia, Colletotrichum, disease, dry rot, scab, Sclerotinia rot, seedling blight, stem blight, leaf blight, steep root, even the special effects for the continuous cropping obstacles.

对土壤真菌、镰刀菌、根壳菌、丝核菌、腐霉菌、苗腐菌、伏革菌等病原菌都有显著的防治效对立枯病、烂秧病、猝倒病、枯萎病、黄萎病、菌核病、炭疽病、疫病、干腐病、黑星病、菌核软腐病、苗枯病、茎枯病、叶枯病、沤根、连作重茬障碍有特效。

The cultural characteristics between hypovirulent strain and high virulent strain was highly distinct.The pathogen of banana anthracnose latents on fruit, foliage, bract, blossom and stalk, stalk of plants with this disease is the most important carrier. The infection type of bannana fruit anthracnose is latent infection.

在香蕉果皮、叶、苞片、花器及假茎上均有香蕉炭疽病菌潜伏,假茎的病残体带菌率最高,为主要的侵染来源;采后香蕉果实上炭疽病侵染型为潜伏侵染型;开花后20d 的香蕉果实开始带菌,随时间延长,带菌量逐渐增加,以后各个生长阶段的带菌率与降雨量有关;炭疽病菌在果指不同部位的分布存在差异。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。