phloem

phloem怎么读

英式音标：[ˈfləʊem]

美式音标：[ˈfloʊem]

phloem基本解释

n. 筛部，[植] 韧皮部

phloem的意思释义

n.

韧皮部；

英英释义

n.(botany) tissue that conducts synthesized food substances (e.g., from leaves) to parts where needed; consists primarily of sieve tubes

同义词：bast

phloem用法及例句

双语例句

用作名词(n.)

In vascular plants, the xylem and phloem serve to translocate such substances.

维管植物的木质部和韧皮部主要进行对这类物质进行运输。

The secondary phloem consisted of sieve cells and phloem parenchymas.

根的次生韧皮部则由筛胞和韧皮薄壁细胞组成。

例句参考

PHLOEM UNLOADING: Sieve Element Unloading and Post-Sieve Element Transport

Na+ and Cl- transport in the phloem from leaves of NaCl-treated barley

INTEGRATIVE PLANT BIOLOGY: Role of Phloem Long-Distance Macromolecular Trafficking

The phloem-limited bacterium of greening disease of citrus is a member of the α subdivision of the Proteobacteria.

Export of FT protein from phloem companion cells is sufficient for floral induction in Arabidopsis

Avoiding Effective Defenses: Strategies Employed by Phloem-Feeding Insects

CONSTANS acts in the phloem to regulate a systemic signal that inducesphotoperiodic flowering of Arabidopsis

\'Candidatus Phytoplasma\', a taxon for the wall-less, non-helical prokaryotes that colonize plant phloem and insects

Berthomieu, P. et al. Functional analysis of AtHKT1 in Arabidopsis shows that Na+ recirculation by the phloem is crucial for salt to...

phloem词源

phloem (n.)

1870, from German phloëm (1858), coined by German botanist Karl Wilhelm von Nägeli (1817-1891) from Greek phloos, phloios \"bark of trees,\" of uncertain origin, + passive suffix -ema.

phloem相关例句

1. Between primary xylem and primary phloem there are 2—3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized.

初生木质部与初生韧皮部之间可见到2—3层排列规则或不规则的薄壁组织细胞，但是没有维管形成层的发生。

2. Vascular cambium The ring of CAMBIUM formed by the activity of the interfascicular cambium and the intrafascicular cambium that gives rise to secondary xylem and secondary phloem.

由于维管束内形成层和束间形成层的活动产生的环状形成层结构，它的分裂活动可以形成次生木质部和次生韧皮部。

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3. And no significant differences were found in feeding behaviors among aphids on three plant parts once sustained ingestion started in the phloem.

一旦口针进入韧皮部持续吸食阶段，蚜虫在三个部位的取食行为没有太大的差异。

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4. The growth of hypogeal stem contain tri-growth, and the anomalous secondary growth is the result of supernumerary cambium that derived from the outmost elements of secondary phloem.

地下茎加粗过程中形成三生结构，其异常结构是由于次生韧皮部外侧发生的额外形成层所致，其起源于薄壁细胞；

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5. ABA in bud and phloem of species was increased by soil drought and there were interrelated notable negative relationships between ABA and water content, sprout rate and survival rate.

各树种在萌芽过程中其芽体和韧皮部中的脱落酸（ABA）含量随土壤干旱程度的加重而升高，并与苗体组织含水量、萌芽率及成活率呈显著负相关；

6. The fall of phloem exudation rate concurred with a decrease of potassium concentration and an increase of sucrose concentration of sap.

韧皮部溢泌速率降低伴随汁液中钾离子浓度降低和蔗糖浓度增高。

7. In vascular plants, the xylem and phloem serve to translocate such substances.

维管植物的木质部和韧皮部主要进行对这类物质进行运输。

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8. It is a lateral meristem and contains fusiform initials giving rise to secondary xylem and phloem and ray initials giving rise to medullary rays. See also secondary growth.

维管形成层属于侧生分生组织，包括能够产生次生木质部与次生韧皮部的纺锤状形成层原始细胞和产生髓射线的射线原始细胞。

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9. Results: The microscopical characteristics such phellem, cortex, phloem and xylem were observed in the transverse section of the stem.

结果：牛耳枫茎横切面主要由木检层、皮层、韧皮部及木质部等组成；

15. Results The structures of the aloe leaves were basically similar as characterized by the presence of the large, well developed parenchymatous cells in the phloem pole where anthraquinones were stored.

结果芦荟属植物叶的基本结构类似，维管束韧皮部内具大型薄壁细胞为该属的结构特征，是蒽醌类物质的主要贮存场所；

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16. The secondary phloem consisted of sieve cells and phloem parenchymas.

根的次生韧皮部则由筛胞和韧皮薄壁细胞组成。

17. The photosynthate in phloem transports by liquid form and the water of the liquid mainly comes from the xylem.

结果表明，同化物在韧皮部中以液流形式运输，液流中的水主要来源于木质部；

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18. After the assay of the peroxidase and esterase isoenzymes in the phloem of eight mulberry varieties in rest stage, no relativity is found between the resistance and isoenzymes.

对处于休眠期的八个品种桑树韧皮部的过氧化酶和酯酶同功酶作了分析，未发现抗病性与同功酶之间有相关性。

19. The vascular bundle consists of vascular bundle sheath, xylem, phloem and big parenchymatous cells.

维管束由维管束鞘、木质部、韧皮部和大型薄壁细胞组成。

20. Cortex (pl. cortices or cortexes) A primary tissue in roots and stems of vascular plants derived from the corpus meristem, that extends inwards from the epidermis to the phloem.

在维管植物的根和茎中来源于原体分生组织的一种初生组织。从表皮向内一直延伸到韧皮部。

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21. In the transection section, the area of secondary phloem is much larger than secondary xylem.

在横切面上，次生韧皮部的面积比次生木质部大得多。

22. The larvae feed on the bark inside and phloem after hatched and discharge the mixture composed with white fiber, brown power and feces to the bark.

幼虫孵化后取食松树内皮和韧皮部，在树皮外可见白色纤维状或褐色粉末状木屑与粪便的混合物。

23. The result shows that the photosynthate and the water from xylem transportation in phloem are closely interrelated.

结果表明，同化物在韧皮部中以液流形式运输，液流中的水主要来源于木质部；

24. There are some sclerenchymatous cells outside the phloem of each vascular bundle to increase the supporting force of the petiole.

每个维管束的韧皮部外面有数层厚壁细胞，增加叶柄的机械支持作用。

25. Result The active component content in phloem was the highest, while, successively, in pith and in xylem.

结果大黄中的活性成分含量以韧皮部较高，髓部次之，木质部较低。

26. The assimilate transports in the phloem by liquid form and the water of the liquid mainly comes from the xylem.

同化物在韧皮部中以液流形式运输，液流中的水主要来自木质部。

27. Intra fascicular cambium ( fascicular cambium) The part of the VASCULAR CAMBIUM within the vascular between the xylem and phloem.

是位于木质部和韧皮部构成的维管束内的一部分维管形成层。

28. In the bark of tapped trees, the thickness of the conducting phloem is less than 1 mm.

在割胶树的树皮中，有输导功能的韧皮部的厚度不超过1毫米。

29. In the bark of tapped trees, the thickness of the conducting phloem is less than 1 mm.

在割胶树的树皮中，有输导功能的韧皮部的厚度不超过1毫米。

30.phloem necorsis

韧皮部坏死

31.Phloem elements and adjacent tissues are the principal feeding sites for most aphids.

韧皮部及其邻近组织是大多数蚜虫的主要取食部位。

34.translocation in phloem

韧皮部运输

36.secondary phloem

次生韧皮部

37.phloem necrosis

韧皮坏死

38.external phloem

外生韧皮部

39.phloem treatment

韧皮处理