Hypoplastic Myelodysplastic Syndrome with Tetrasomy 8: a Case Report and a Literature Review

One case without metaphase was found to have trisomy 8 ( 14.6%) and tetrasomy 8 ( 80.4%) by I-FISH.

1例无分裂相加速期患者，I-FISH发现同时存在8三体（14.6%）和8四体（80.4%）。

互联网摘选

Plant aneuploids, such as monosomic, trisomic, tetrasomic et al, are the important basic materials for genetic study and chromosome engineering breeding, and in the physic orientation of gene loci or molecular markers or linkage groups, their function is without substitution.

植物单体、三体、缺失体等非整倍体是遗传研究和染色体工程育种的重要基础材料，在基因及分子标记的物理定位、确定连锁群与染色体的对应关系上具有不可替代的作用。

互联网摘选

Double reduction exhibited at As-073 simultaneously gave evidence of tetrasomic inheritance.

同时观测到位点As-073上出现双减少配子，也为四倍体遗传提供了证据。

互联网摘选

Study on Temperature, Time and PH Value's Affection on the Volume Grown by Enzymatic Way to Hydrolyze Starch to Produce Glucose, Disaccharide, Trisaccharide and Tetrasaccharide

温度、时间、PH值对酶法水解淀粉生产葡萄糖二糖三糖四糖生成量影响的研究

互联网摘选

5-Aminolevulinic acid ( ALA) is a common precursor in the biosynthesis of tetrapyrrole compounds such as porphyrins, chlorophyll, heme and vitamin B12, widely exists in the cells of microorganisms, plants and animals.

5-氨基乙酰丙酸（5-aminolevulinic acid，ALA）是生物合成卟啉、叶绿素、亚铁血红素和维生素B12等四吡咯化合物的共同前体物质，广泛存在于微生物、植物和动物细胞中。

互联网摘选

The results indicate that the oxidative cleavage of the heme ring in vivo is catalyzed by the combined actions of NADPH-cytochrome C reductase and heme oxygenase to yield the linear tetrapyrrole biliverdin IXa.

发现由NADPH&细胞色素C还原酶和血红素加氧酶的联合活性使血红素氧化降解产生专一性的胆绿素Ⅸα。

互联网摘选

Linear tetrapyrrole pigments play a very important role in the absorption of light energy in phycobiliproteins and phytochrome to regulate photosynthesis and photomorphogenesis, especially as the chromophore of fluorescent proteins ( FPs).

线性四毗咯色素在藻胆蛋白、光敏色素等色素蛋白中起着吸收光能的作用，并以此调节光合作用和光形态发生。

互联网摘选

Tuning the intermolecular interaction of such kind of tetrapyrrole derivatives can be easily reached by introducing functional groups ( actually additional non-covalent interactions) onto the peripheral positions of porphyrin ring.

所以，调控卟啉类化合物及其衍生物的分子间弱作用可以很容易地通过在卟啉环或其衍生物的外围引入不同的官能团（实际上是通过引入官能团来引入非共价弱作用）来实现。

互联网摘选

Mg-Protoporphyrin ⅸ ( MP), a tetrapyrrole intermediate in the plastid act as a plastid signal.

质体中进行的四吡咯代谢的中间产物镁&原卟啉Ⅸ（Mg-ProtoporphyrinⅨ，MP）就是这样一类质体信号。

互联网摘选

Porphyrins and their non-naturally occurring analogues, phthalocyanines, are the most common and important tetrapyrrole derivatives.

卟啉和它们的非天然类似物&酞菁是最普通也是最重要的四吡咯衍生物。

互联网摘选

The Function of Tetrapyrrole Intermediates in the Plastid-to-nucleus Signalling of Plant Cells

四吡咯代谢中间产物在植物质体向细胞核信号转导中的作用

互联网摘选

This regulation model leads to the disordered status of photosynthesis associated nuclear genes expression and tetrapyrrole biosynthesis pathway.

这种调控模式导致光合作用相关基因表达和四吡咯生物合成代谢途径的紊乱。

互联网摘选

The alternate usage of one unit for production of cumene and tetrapropylene is introduced.

介绍兰州炼油化工总厂苯烃化和四聚丙烯工艺交替使用同一套装置的设计。

互联网摘选

By analyzing chromosomes of embryogenic callus tissue cells with eight months continuous subculture demonstrated that the mumber and structure of chromosome were relatively steady, in which diploid cell occupied ( 97.2%), tetraploidy cell ( 1.87%), haploidy cell ( 0.93%).

继代8个月的胚性愈伤组织细胞的染色体数目和结构相对稳定，其中二倍体细胞占97.20%，四倍体细胞占1.87%，单倍体细胞占0.93%。

互联网摘选

The results showed that the crude protein content, the eighteen essential amino acids and the twelve essential amino acids in the powder of tetraploidy black locust for fodder leaves were highly at the four stages, and along with the time process, they were all descending gradually.

结果表明，饲料型四倍体刺槐叶粉4个时期的粗蛋白1、8种氨基酸总量和12种必需氨基酸含量均较高，且呈现随时间的推移而逐渐下降的趋势；

互联网摘选

And there were eighteen amino acids in the leaves of tetraploidy Robinia pseudoacacia for fodder, moreover, their contents were descending gradually along with the time, and its nutrition was as well as or higher than Medicago sativa at growing stages.

不同生长时期叶片均含18种氨基酸，其含量随时间的推移呈下降趋势，且在生长时期较苜蓿草粉高或与之相当。

互联网摘选

The studies on the induction of tetraploidy, using either hydrostatic pressure treatment alone or a combination of hydrostatic pressure and cold treatment for blocking first cleavage, were attempted in transparent colored crucian carp ( Carassius auratus transparent colored variety).

采用静水压处理和静水压与冷休克结合处理两种方法进行了抑制第一次卵裂诱导水晶彩鲫四倍体的研究。

互联网摘选

Tetraploidy was induced by inhibiting polar body I in eggs from triploid Crassostrea gigas fertilized with haploid sperms with 0.5mg/dm 3 CB treatment.

本文采用长牡蛎三倍体卵子与二倍体精子授精，用0.5mg/dm3CB处理受精卵抑制第一极体排放诱导出四倍体。

互联网摘选

P53 abnormality and aneuploidy often coexist in human tumors, and tetraploidy is considered as an intermediate between normal diploidy and aneuploidy.

p53异常和非整倍体通常共存于人类肿瘤中，而四倍体则被认为是正常的二倍体细胞转化到非整倍体细胞的中间体，且其也与p53的异常密切相关。

互联网摘选

The highest tetraploidy was 40.0 ± 0.0%.

最高四倍体诱导率为40.0±0.0%。

互联网摘选