查询词典 phloem

Experimental results show that there are existing some indifferent mechanisms to the pollen sterilization of the Ms types: during the period of single nucleic to three nucleic pollen cell,we observed that the cell of xylem and phloem in anther septum abnormally developed,also the cell in the sheath of vascular bundle,smaller and arranged irregularly; the metabolic block developed too,es...

结果表明，不育类型的花粉败育有着一些共同的机理：在花粉单核期至三核期可见到花药隔维管束的木质部及韧皮部细胞发育较差，维管束鞘细胞发育不良，体积较小，排列紊乱；在单核花粉期至三核花粉期均发生物质代谢障碍，特别在花药部位尤为明显；由于维管束发育不良和花药物质代谢障碍，导致了花粉缺乏营养而败育。

According to the changes of plasm components and cell structure,the development process of SE in secondary phloem could be divided into three stages,ie immature,mature and degenerated stages.

根据筛管细胞结构和原生质组分的系列变化，可将筛管发育过程划分为未成熟期、成熟期和衰退期。

Indo-acetic acid promoted endosperms cell to stretch and enlarge; abscisic acid promoted sink activity and unload of the organic material from phloem and facilitated mature and senile of grains.

脱落酸则可能增加库活性，促进有机物韧皮部卸出来促进籽粒灌浆，并可能与赤霉素一起共同调控籽粒的成熟和衰老。

Among various fruit-growing positions, compared with the abnormal lateral fruitlets, the normal central and lateral fmitlets had higher fresh weight, dry weight and total Ca, Mg, K content of single fruit, and bigger diameter, more vascular bundles, thicker xylem and bigger phloem vascular bundles area of pedicel, but lower content of Ca, Mg in pedicels.

结果表明，随幼果的发育，单个幼果重量和Ca、Mg、K含量呈增加趋势；与发育不正常的边果相比，发育正常的中心果和边果的鲜重、干重、果柄直径、维管束数目、木质部厚度、韧皮部维管束面积和单果Ca、Mg、K总含量较高，而以干重为单位的果柄Ca、Mg含量较低。

The quantity and cell size of the xylem and phloem of the leaf vascular bundle in P. yunnanensis Franch.(Kunming, mid-part of Yunnan) was relatively less and smaller than that in south-east of Yunnan .

滇中地区的云南松，其针叶维管束内木质部和韧皮部的数量和组成分子的大小比滇东南地区的少且相对较小。

Total RNA was isolated from phloem of young shoots and retro-transcripted to cDNA by RT-PCR with specific primers, and the amplified cDNA fragments were sequenced for identification of subtypes. An effective RT-PCR technique was established for detecting citrus viroid types, and three types were recognized, i.e.

以田间柑橘枝条韧皮部为试材，提取总RNA，反转录成cDNA，再用不同类型类病毒的特异引物进行PCR扩增，鉴定出各个样品所携带的柑橘类病毒类型；通过测序分析各类型的序列，并与国内外报道的序列进行同源性分析，确定所测样品的亚型。

Branches, leaves and phloem of apple collected from an old orchard in Yanji, Xinjiang were used for total RNA isolation specific fragments of Apple fruit crinkle viroid were amplified by RT-PCR using the primers disigned according to the sequence AB104558 on GenBank. Ten sequences were obtained through recovering, cloning and sequencing, and also registered in GenBank accession No.

采集新疆焉耆地区的老果园中的苹果树枝条、叶片和韧皮部，提取总RNA，根据GenBank中的AB104558序列设计引物，利用RT-PCR技术扩增出苹果皱果类病毒（Apple fruit crinkle viroid ，AFCVd）特异条带，通过回收、克隆和测序，结果表明，获得的10条序列，已在GenBank中登录（登录号：EU031507～EU031516）。

What the textile industry use is the ramies phloem fiber. The raw fiber must be unglued before it is used to spin.

纺织工业利用的是苎麻韧皮纤维，原麻需经过脱胶后才能用于纺织。

Kenaf phloem bundle fiber layers were separated by five treatments, and the diameter and maximum tensile force of bundle fiber of each layer were measured.

通过5种处理方法分离红麻韧皮部束纤维层，测定各层束纤维的直径d及其所能承受的最大拉力Fmax，计算束纤维的极限抗拉强度σ。

The fiber average length of the phloem is 7.45mm and the fiber average length of the xylem is 0.58 mm.

明，人工种植构树韧皮部果胶含量较高，达11.67％；皮、杆的冷、热水抽出物及1％NaOH抽出物均比杨木高出几倍；韧皮部纤维平均长度为7.45 mm，而木质部仅为0.58 mm。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。