phloem ['fləuem]

phloem的基本解释

n.

韧皮部, 筛部

phloem所属的单词分类

Plant / 植物 [187]

vascular plant  ·  terminal bud  ·  simple leaf  ·  sea weed  ·  sage brush  ·  petrified wood  ·  opposite leaves  ·  lateral bud  ·  lanceolate leaf  ·  incomplete flower

与phloem相关的网络例句 [注：此内容来源于网络，仅供参考]

The results showed that at the beginning stage of being attacked by Chinesis white pine beetle and their symbiotic blue-stain fungus, PAL, PPO, SOD activities and MDA content significantly increased in the phloem of P. armandi, and decreased with the increase of the number of D. armandi and the attacking on the xylem and phloem of P. armandi from blue-stain fungus, then reached the minimum level in withering stage of P. armandi. But the contents of nutrition materials in the phloem, such as water, protein, glucide, fat, amylum and so on, declined with the infestation of D. armandi and symbiotic fungus. In summary, the resistance of physiology and biochemistry in the phloem of P.

结果表明，在华山松大小蠹和共生蓝变真菌危害初期，华山松韧皮部内的苯丙氨酸解氨酶、多酚氧化酶、超氧化物歧化酶活性均显著提高，丙二醛含量明显增加；但随着华山松大小蠹种群数量的增加和蓝变真菌对华山松韧皮部和木质部组织危害的加剧，韧皮部组织内的PAL、PPO和SOD活性逐渐降低，在枯立木阶段降至最低；与此同时，华山松韧皮部内的水分及蛋白质、糖类、粗脂肪、淀粉等营养物质含量，则随华山松大小蠹和共生蓝变真菌危害的加剧而不断减少。

The results showed that glucose and fructose are primary soluble sugars from night to 10: 00 a.m. in mature leaves, but during 13: 00 - 16: 00 p.m., stachyose becomes the most abundant oligosaccharide, this diurnal change is mostly due to the tempestuous fluctuation of stachyose concentration in mature leaves. During photoassimilate transportation, the p rimary soluble sugar in phloem sap is stachyose. When transportation is finished, sucrose becomes the main sugar in phloem sap. Cucumber leavesmay store photoassimilate in the forms of starch, glucose, fructose, stachyose and sucrose at night. The concentrations of glucose, fructose and stachyose in phloem sap are much lower than in leaves at that time. There may be some unique mechanisms modulating source-sink translocation by which soluble sugars in leaveswere prevented from loading into the phloem further during night.

结果表明夜间至上午10： 00，葡萄糖和果糖是叶片中主要的可溶性糖，而下午13： 00至16： 00，水苏糖成为成熟叶片中含量最高的可溶性糖，这种变化主要由叶片中水苏糖含量剧烈的昼夜变化引起；当黄瓜同化物从源叶向外运输时，韧皮部汁液中的可溶性糖以水苏糖为主，运输完毕后则以蔗糖为主；黄瓜成熟叶片在夜间以淀粉、葡萄糖、果糖、水苏糖、蔗糖等各种形式贮藏尚未运出的同化物，而此时韧皮部汁液中葡萄糖、果糖、水苏糖的含量极低，可能有特定的源库调节机制阻止叶片中的可溶性糖在夜间进一步向韧皮部中装载。

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。

与phloem相关的网络解释 [注：此内容来源于网络，仅供参考]

phloem：韧皮部

永久组织是有分生组织衍生的细胞发展而来的,因其生理机能和结构的不同,而区分为表皮组织(surface tissue)、薄壁组织(parenchyma)、机械组织(mechanical tissue)、维管组织(vascular tissue)输导组织,木质部(xylem)、韧皮部(phloem)

phloem：[植]韧皮部

pheromone 外激素,信息激素,味诱激素 | phloem [植]韧皮部 | phosphorus 磷(化学符号P)

phloem：軔皮部

pheromone 費洛蒙;傳訊素 | phloem 軔皮部 | pholadobiose 隙棲性生物群

phloem：筛管部

pheromone trap 信息素罗网 | phloem 筛管部 | phloem fiber 韧皮纤维

phloem island：[植]韧皮岛

USES United States Employment Service 美国就业局 | phloem island [植]韧皮岛 | impressed variation 强制变异