查询词典 basipetal

Basipetal differentiation is seen in the formation of proto-and metaxylem in the stem.

在茎原生木质部和次生木质部的形成过程中可以看到这种类型的分化。

All transport was basipetal. Although there was some acropetal movement, assimilate was predominantly translocated towards the basilar.

定量分析表明，尽管有一些向顶的运输，但向基运输是占绝对优势的，但随着无性系生长时间的不同，运输将会发生改变。

The dual scale automaton model is improved by introducing the rule of synchronization development, mechanism of reiteration and delay law of plant growth from the viewpoints of botany,which make it possible to generate almost all types of the inflorescences defined by botanists, and to simulate acropetal and basipetal flowering sequences.

通过在双尺度自动机模型中引入&同步生长机制&和&重复生长机制&，能够模拟所有植物学中给出的花序类型。并通过应用&生长延时机制&，实现了&向顶开花&和&向基开花&两种开花顺序的模拟，避免了L系统用成花信号控制的缺点。最后通过与L系统的比较，证明该方法简单实用

See also acropetal; basipetal.

参见 acropetal； basipetal 。

The stem was ringed below the fed leaves or fruits to prevent basipetal transport before feeding.

以下是被灌成的叶子或水果，以防止在运输basipetal喂养。

B. Longitudinally, IAA presented a basipetal gradient in the vascular tissues of E.

这些梯度差异可能在维持杜仲的形态和动态平衡方面起着重要作用。

An assay of polar auxin transport showed that, in comparison with wild type plants, the basipetal transport activity was greatly reduced in the stem of li mutant.

形态解剖观察发现li突变体茎的形成层和韧皮部分化发育不完全，这与其生长素极性运输能力下降是一致的。

These results suggested that the stimulation effect of local nitrate on LR growth is dependent on auxin. And the auxin mainly comes from the basipetal transport from shoot to roots, but not from the seed or the basipetal transport of auxin from root tip to LR growth sites.

这些结果表明，局部供应硝酸盐对侧根生长的促进作用依赖于生长素，这些生长素主要来源于地上部生长素向侧根生长部位的直接供应，而不是来源于种子或由根尖向侧根发生部位的生长素向基运输。

Our observations with transgenic plants showed that the PF40 gene affected the growth of lateral shoots developing in the basipetal pattern early after floral transition.

测量结果表明PF40基因过量表达的转基因谷子生长素的含量降低为对照的0.6～0.8倍，而细胞分裂素的含量较对照约升高0.2～0.35倍，生长素与细胞分裂素的比值在转基因植物中改变明显，降低到对照的一半。

In the process of root cutting, the root accumulated a lot of soluble sugar and soluble protein, which provided material and energy for the cell differentiation. As root differentiating, soluable protein was continuously used up. During 10 to 20 days, the content of soluble sugar and soluble protein in the basipetal top and end of rootkept comparatively stable, then declined as adventitious buds and roots growing. 40 days later, they kept invariable, because the newly formed bud can photosynthesize and the newly formed root can absorb nutrient from outside. The dynamic balances of endogenous hormone regulate adventitious buds and roots of the root. During callus growing and adventitious bud differentiating.

上部根段在细胞分化前期积累了大量的可溶性糖，为后期的分化提供能源物质，同时积累了大量的可溶性蛋白质，为愈伤组织的产生提供能源，而后随着分化，可溶性蛋白质不断被消耗。10～20d根段上部及下部的可溶性糖、可溶性蛋白质含量保持在相对稳定的水平变化不大，后期随着不定芽及不定根的生长下降较快。40d后，新形成的芽已经能够进行光合作用，新形成的根也可从外界吸收营养物质，可溶性糖、可溶性蛋白质含量基本保持不变。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了