查询词典 plants

The biological characters of p5CS-bar gene transgenic wheatgrasse and control plants were observed and analysed that none but caudex have marked differences(0.05); The values of plant height、spike length、spike width and stem/leaf are less than control plants, leaf length and leaf width are more than control plants; Under the same condition of growth and climate to compare transgenic wheatgrass with control plants we can see that trning-green sage is advance, defer procreate period, long viridity period, growth speed become slow and the figure of curves is"S", more tillers.

2对转p5CS-bar基因冰草阳性植株和阴性对照植株进行生物学性状观测比较，分析得出：只有丛茎差异显著，显著水平为0.05；株高、穗长、穗宽和茎叶比的值均稍小于对照，叶长和叶宽的值稍大于阴性对照；在栽培、气候相同条件下，返青期相对提前，生育期推后，青绿期延长；生长速度变缓，在整个生育期呈"S"型生长曲线；分蘖能力增加。

Results showed that the root colonization rate of S. gracilis (62.2%) was higher than that of A. conyzoides (36.5%) and P.notatum (37.3%).The arbuscule percentage showed a similar pattern. Although the biomass and P content in the shoots of the three grass species were comparable, P content in S. gracilis roots was higher than that in A. conyzoides and P. notatum roots. The species richness and hyphal density in the rhizosphere soil of S. gracilis plants were less than those of A. conyzoides and P. notatum plants, while the spore density was highest for A. conyzoides and lowest for P. notatum. Diversity index of the native AM fungi in the rhizosphere soil of P. notatum plants was slightly higher than those of S. gracilis and A. conyzoides plants. PCRDGGE analysis was consistent with the morphological results.

结果表明，柱花草根系的侵染率(62.2%)显著高于百喜草(36.5%)和藿香蓟(37.3%)，丛枝率有相似的趋势；3种草地上部的生物量和含磷量没有差异，但是柱花草根系含磷量显著高于百喜草和藿香蓟；柱花草根际土壤中AM真菌的菌种丰度和菌丝密度均小于百喜草和藿香蓟，但是孢子密度大于藿香蓟而小于百喜草；藿香蓟根际土著AM真菌群落的多样性指数略高于柱花草和百喜草；PCR-DGGE分析结果与之吻合。

Gramineae and Compositae by the shifting sand to the fixed sandy land, the species of which changed greatly, that indicated they were playing a great role in the recovery of the sands. Asclepiadaceae plants could serve as a indicative plants to distinguish between the types of shifting sand and other sand; Portulacaceae and Bibgnoniaceae plants, which appeared only in the fixed sandy land, has become a landmark to determine the fixed sand plants. In addition to artificially plant Caragana spp. and Artemisia spp.

豆科和藜科植物作为流动沙地的先锋物种，表现出较强的适应能力；禾本科和菊科植物由流动沙地到固定沙地，其种类变化较大，表明其在沙地恢复中发挥着巨大的作用；萝摩科植物可作为区分流动沙地和其它沙地类型的指示性植物；马齿苋科和紫薇科植物仅在固定沙地中出现，已成为判断固定沙地的标志性植物。

The cDNA document of ACC oxidase gene of Citrus aurantium L. was cloned. By using the program of BLAST on NCBI GenBank database, the sequence presented a very high match with the ACC oxidase genes from other plants. The base sequence was analysed by using biology programe of DNAStar 5.0. 278 amino acids were coded by the base sequence and the base sequence had the same conserve region of ACC oxidase gene of many kinds of other plants. The base sequences comparability was more than 72% compared with those of many kinds of other plants. The amino acid sequences comparability was more than 70% compared with those of a lot of other plants.

克隆了酸橙1-氨基环丙烷－1-羟酸氧化酶基因cDNA片段，将片段序列在NCBI网站上进行同源性搜索，显示的皆为不同植物的ACC氧化酶基因，因而认为所克隆的片段就是酸橙ACC氧化酶基因；并运用DNAStar5.0软件进行序列分析，推导的氨基酸序列为278个残基；具有所有植物ACC氧化酶基因共有的保守区域；与多种植物的ACC氧化酶基因的核苷酸和氨基酸序列的同源性都在72%和70%以上。

As the depth of the standing water in the freshwater marsh increased and cyperaceous plants replaced the gramineous plants, the capacity of plants to transport methane from the freshwater marsh into the atmosphere increased significantly, however the comprehensive effect of plants on methane production decreased.

在腐泥沼泽中，随着沼泽静水层深度的增加，植物种类由禾本科植物——小叶章演替为莎草科植物——乌拉苔草和毛果苔草，植物传输甲烷的能力显著提高，占沼泽甲烷排放总量的比例从31%上升到72%~86%。

The mainly results of this work are as follows: 1. To determine the genetic characterize of Gl_2~e gene, we investigated the different positions and stages of 1599 F_2 segregating plants. The results showed that 441 plants had dark-colored glands; 427 glandless plants and 761 plants with low-glands respectively.

本研究结果如下：一、分别对不同生育时期F_2群体单株各部位性状调查发现，表现为TM-1有腺体性状的411株，表现为海_1无腺体性状的427株，与F_1一样少腺体的761株，经检验符合1：2：1的分离比例X~2=4.028＜X~2_(0.05，2=5.99，进一步证明海_1无腺体性状是由一对不完全显性基因Gl_2~e控制。

However, compared with their parents, these plants showed some degeneration. Aside from pure diploid plants, mixoploid plants also were obtained by inducing of DMSO. Furthermore, there was much cytology behavior variation of mitosis between pure diploid and mixoploid plants.

DMSO诱导玉米孤雌生殖除获得纯合二倍体植株外，还获得了部分的混倍体，细胞染色体有丝分裂细胞学行为也相对有较大的变异。

Percent and 21. 4 percent respectively. F1 plants of R01 self-cross also present diverse colors such as white, pink, red, nacarat/saffron, dark yellow, yellow and so on, And the pink and the nacarat/saffron plants have the highest proportions, 50.6 percent and 31. 4 percent, respectively. The wide segregation chromatogram of self-cross progeny implies that these two varieties themselves contain the abundant genetic polymorphism. The ISSR genetic diversity analysis and the principle factor analysis were performed using 49 plants of RP1 self-cross progeny population and 123 plants of R01 self-cross progeny population.

RP1及R01的遗传多样性最高，这从自交一代的表观性状及ISSR的遗传变异可以得到证实，如RP1自交，F1代花色有白色、粉色、玫瑰红、深红色、桔红/桔黄、黄色，黄红复色等，其中以粉色及桔红/桔黄色占的比例最大（分别占61.2％，21.4％）；R01自交，Fl代花色有白色、粉色、红色、桔红//桔黄、深黄色，黄色，其中以粉色及桔红/桔黄色占的比例最大（分别占50.6％，31.4％），较广的自交分离色谱，表明两个品系自身存在丰富的遗传多态性。

In the area, it is rich in wild plant resources, and the statistic result shows that there are about 40 wild fruit tre es, 30 edible plants, 64 forage plants, 111 nectariferous plants, 132 ornamental pla nts, 50 perfume plants and 131medic...

在这些植物种类中有国家重点保护植物9种、中国珍稀濒危保护植物3种、自治区重点保护植物9种；林区野生植物资源非常丰富，统计结果表明：野生果树40种、食用植物30种、饲用植物64种、蜜源植物111种、观赏植物132种、香料植物50种、药用植物131种。

Therefore, we selected common species of Ranunculaceae. comparative primordial plants in Alpine Meadow at Eastern QinghaiTibetan Plateau, and studied the reproductive strategies, such as reproductive allocation, especially sex allocation, to understand how the plants adapt the environmental conditions. The results showed:(1) At higher altitude, the self-incompatible plant, such as Trollius ranunculoides tended to become limited by pollination rather than by nutrient availability, while the self-compatible plants, such as Anemone rivularis and A. obtusiloba seemed not to be limited by pollen availability, which suggested that ability of self pollination for alpine plants may be a mechanism of reproductive assurance.(2) Influences induced by high altitude on the reproduction of these species occurred on different reproductive characters, which suggest species-specific adaptive strategies. The influences are dependent on plant size to some extent.

因此，我们选择在青藏高原东部的高寒草甸，以比较原始的植物类群—毛茛科植物为研究对象，选择一些常见种探讨其繁殖对策，如繁殖分配和性分配问题，试图揭示这些植物如何适应环境条件，最后的结果表明： 1高寒草甸高海拔区，自交植物(如小花草玉梅A.rivularis和钝裂银莲花A.obtusiloba)的繁殖不受花粉限制，而完全异交植物(毛茛状金莲花T.ranunculoides)的繁殖受花粉限制，表明高海拔地区植物的白花授粉能力可能是一种繁殖保障机制，能够避免恶劣环境对植物有性繁殖的不利影响； 2海拔高度对植物的影响因种而异，不同的物种受影响的繁殖性状不同，即使同属亲缘种间也存在差异，表明不同物种对相似环境压力的适应对策不同；而且，海拔高度对植物的影响在一定程度上依赖于植物个体大小，说明植物通过调整其个体大小与繁殖性状的关系来适应环境梯度的变化； 3植物花期和果期的繁殖分配并不完全随海拔升高而减小(只有小花草玉梅的果期RA随海拔升高而减小30％)，与Iwasa和Cohen的预测不完全一致(他们认为繁殖分配随生长季缩短而减小)。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。