查询词典 plasmalemma

There are experimental results as follows:(1) Eriophorum comosum Nees shows strong cold resistance in plasmalemma permeability research. The lethal temperature of Eriophorum comosum Nees is the lowest LT_(50 in comparison with another two plants and is lower than -11.5℃ in August 2005 and December 2005; Soluble protein content of each plant is rising before or after cold hardiness. By SDS-PAGE, Protein band is analysed. Band quantity of Eriophorum comosum Nees is the most and its band color is darkest.(2) Soluble sugar content of three plants after cold hardiness are higher than before cold hardiness, moreover soluble sugar content after cold hardiness shows a decline and there is a narrow range in Eriophorum comosum Nees; Free Proline accumulation is changed by cold stress, and cold resistance is relative to free Proline accumulation; chlorophyll content of both three plants, including chlorophyll a, chlorophyll b and chlorophyll a/b, show a decline tendency along with the descent of temperature. Cynodon dactylon is highly sensitive to cold stress.(3) The soil POD and urease activities' absolute value of Erioophorum comosum Nees and Pogonatherum panideumHack were more than that of Cynodon dactylon before or after low temperature stress, especially POD activities.

实验结果表明：(1)在膜透性的研究中，丛毛羊胡子草抗寒性最强，采用电导率法测得半致死温度LT_(50最低，丛毛羊胡子草抗寒锻炼前后半致死温度LT_(50均小于-11.5℃；在可溶性蛋白含量研究中，抗寒锻炼前后三种植物的可溶性蛋白含量均增加，同时采用SDS-PAGE法，通过对蛋白条带分析，以丛毛羊胡子草条带数最多且着色深；(2)在可溶性糖的研究中，三种植物经抗寒锻炼后叶片可溶性糖含量都比抗寒锻炼前高，且经过抗寒锻炼后三种植物可溶性糖均呈下降趋势，丛毛羊胡子草可溶性糖含量下降较小；从游离脯氨酸含量可知，低温的胁迫影响了植物叶片游离脯氨酸的含量变化，植物的抗寒性与游离脯氨酸有关；低温胁迫下三种植物叶绿素含量随着温度的下降，叶绿素含量、叶绿素a、叶绿素b和叶绿素a／b均呈下降趋势，狗牙根对低温胁迫最为敏感；(3)低温锻炼前后，丛毛羊胡子草和金发草的土壤过氧化物酶与脲酶活性的绝对值均大于狗牙根的，特别是过氧化物酶，说明丛毛羊胡子草和金发草的酶活性大于狗牙根的。

The plasmalemma of cells within meristematic regions was observed to possess invaginations in cultured callus of Stevia rebaudiana under differentiation.

对在分化条件下的甜菊愈伤组织分生区域细胞的质膜内陷进行了超微结构和酸性磷酸酶细胞化学研究。

During the wall thickening, the number of Golgi bodies increased apparently and cytoplasm was filled with Golgi vesicles. Polylamellate structure of the secondary wall appeard, Along with the further development of tracheary elements, the nucleous disappeared and organelles were decreased, while cortical microtubules were arranged neatly against the inner side of plasmalemma.

初生壁与质膜之间有间隔较规律的次生壁突起；中期，线粒体和高尔基体的数量明显增加，细胞质中几乎充满高尔基体及其囊泡，次生壁中微纤丝已成有序排列；晚期，细胞核消失，导管中央形成空腔，细胞器迅速减少，仅观察到少量高尔基体和线粒体，有大量周质微管沿细胞长轴分布，且在次生壁的周围有大量小泡附着，次生壁的分层结构清晰可见。

The results show that salicylic acid helps decrease the relative plasmalemma osmoses and reduce the content of malondialdehyde in the leaves of red grapes young plants, thus improves their cold resistance; The effect on the subjects dealt with 1.25mmol/L SA is the most obvious.

在秋季越冬前抗寒锻炼期间定期取1年生根，测定质膜相对透性、丙二醛含量的变化。结果表明：水杨酸能降低红提葡萄幼苗质膜相对透性和丙二醛含量；增强了幼苗的抗寒性；1.25mmol/L SA 处理表现最为明显。

The distribution of ATPase activity in the phloem parenchyma cells and flesh parenchyma cells(no-phloem parenchyma cells)changed during the different developmental phases of the fruit.It isparticularly interesting to observe a band along the plasmalemma of flesh parenchyma cellsadjacent to the phloem,the band highly enriched with the ATPase activity,forming a ring ofencirclement that surrounds the phloem.

结果表明：SE/CC复合体的ATP酶主要定位于质膜上，韧皮薄壁细胞和果肉薄壁细胞的ATP酶在不同时期的分布和活性是不一样的，令人注目的是：在邻近韧皮部的果肉库细胞的细胞壁和质膜之间发现一条ATP酶活性物质的聚集带，形成环状，包围韧皮部。

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。