玉米

It mainly empoison feed and cropper, such as wheat oat corn and so forth. It can arouse uterine portliness, metrohypertrophia, non-oestrus and abortion of female livestock, female symptom of boar.

玉米赤霉烯酮可引起雌性畜禽的阴道上皮角质化、子宫肥大、流产、假发情或不发情等类雌激素综合症，雄性动物接触玉米赤霉烯酮后出现&雌性化&症状，此外，玉米赤霉烯酮还具有免疫毒性和潜在的致癌性，对动物和人类健康的威胁十分巨大。

We used maize seedlings (Zea mays L.) and tobacco (Nicotiana plumbaginjfolia L.) as material. In the first section, we have investigated cold- shock-induced chilling, drought, heat and salt stress resistance in maize seedlings. In the second section, by modifying the Ca~ and CaM levels, we have tried to establish the involvement of calcium messenger system in the cold-shock-induced cross adaptation. In the third section, we have tried to establish a transgenic tobacco system expression CaMICaMIBP genes, so that the others can use it to investigate the process of physiology and biochemistry which endonuclear and cytosolic calmodulin have taken part in.

以玉米幼苗和烟草为实验材料，本文第一部分通过将玉米幼苗进行短期冷驯化后对冷胁迫、干旱胁迫、热胁迫及盐胁迫的影响，试图证明玉米幼苗中交叉适应现象的存在及其机理；第二部分通过外源修改Ca~(2+)和CaM水平，研究了钙信使系统在交叉适应现象中的可能作用；第三部分通过建立诱导性表达CaM/CaMBP转基因烟草体系，便于研究受细胞质CaM和细胞核CaM调控的各种生理生化过程。

We use the DD-PCR to isolate disease-resistance related genes from the maize inbred 48-2 which is resistant to Helminthosporium turcicum.

本研究以抗大斑病玉米自交系48-2为材料，利用mRNA差异显示技术从玉米中克隆与玉米抗病相关的基因。

The six groups classified by cluster analysis of SSR markers is consistent with the available pedigree and the result of combining ability. So it is feasible to analyze the genetic diversity of maize population by SSR markers and to distinguish heterotic group by method of mixed sampling.

6个玉米群体的聚类结果与系谱来源和田间配合力测定结果基本一致，说明，用若干单株混合取样分析玉米群体SSR的遗传多样性，进而对不同玉米群体划分杂种优势类群是可行的。

The corn hybrid species of Haiyu4 was used as experiment materials. The dynamics regulations of main physiological parameters were studied in this experiment, in which it was subjected to drought stress at different growth stages, different holard and irrigation before seeding.

本试验以海玉4号玉米杂交种为试材，通过不同土壤重量含水量及不同坐水量处理，不同生育时期干旱胁迫处理，并通过对相关生理指标和产量及籽粒品质的测定及分析，探讨春玉米主要生理指标的动态变化规律，为北方春玉米旱作栽培及节水灌溉提供理论依据。

Hydroxamic acid β-glucoside is confirmed as a major natural substrate of maize β-glucosidase.β-glucosidase plays a significant role in defensing some pathogens and pests of maize seedling by releasing hydroximic acids .

并确认了氧肟酸葡萄糖苷即是玉米葡萄糖苷酶的主要底物，以及氧肟酸在玉米葡萄糖苷酶的催化下释放氧肟酸是玉米幼苗时期抵御病虫害的一种重要方式。

Compared with high oil normal corn, high oil waxy corn under near isogenic background has a significant drop for oil content.

与高油玉米和特高油玉米相比，相应近等基因背景下的高油糯玉米和特高油糯玉米油分含量显著降低。

In this study 2mG2-epsps gene was used to be a selection marker gene, and a series of experiments were designed for determining the time of their screening and selection pressure. The results showed that 1 mM glyphosate isopropylamine and 15 days screening can be effectively inhibited non-transgenic maize callus tissue differentiation. So this research work has provided a safe and effective screening system for corn and other monocotyledons crops.

实验中以2mG2-epsps基因作为筛选标记基因，为确定其筛选时间及筛选压力，进行了玉米愈伤组织对不同浓度草甘膦的抗性实验，确定向培养基中添加浓度为1mM的草甘膦异丙胺盐筛选15天能有效的抑制非转基因玉米愈伤组织的分化，本研究的再生植株的阳性率为45%，为玉米及其它单子叶作物转化提供了一种有效、安全的筛选体系。

A small amount of use, digestible energy of wheat close to corn, the chicken metabolizable energy lower than corn; a large number of use, due to the role of non-starch polysaccharide anti-nutritional effects, available energy lower than corn.

少量使用时，小麦消化能和玉米接近，鸡代谢能低于玉米；大量使用时，由于受非淀粉多糖抗营养作用的影响，可利用能量低于玉米。

The decisive influencing factor of viscosity in carboxyl-methylation was cross-linking reaction. Carboxyl-methylation was the main influencing factor of solubility and swelling capacity in modification of high content amylose starch. The structure and gelatinization property of different amylose content were analyzed with an Olympus Vanox BHS-2 multi-function optic microscope, and the results were as follows. The structure of ordinary cornstarch was different from the high amylose; gelatinization temperature and pH value of starch were affected deeply by amylose content, but had little difference between the gelatinization of high content amylose starch contained 50% and 70% amylose; pH value had much more effect than temperature on the gelatinization of high content amylose cross-linked starch. Monochloroacetic acid consumption, alcohol concentration and pH value influenced the starch carboxyl-methylation. When alcohol concentration was 60%, pH value 10, monochloroacetic acid/starch mass ratio 55%, the carboxyl-methylation of high amylose cross-linked cornstarch had the best result. With the In-Vitro digestibility model and biodegradation experiment, the digestibility and biodegradability of high amylose cornstarch and its modified starch were detected.

采用Brabande粘度测定仪和Olympus Vanox BHS-2型多功能光学显微镜等分析手段对链淀粉含量50％和70％的高链玉米淀粉及其交联和交联羧甲基化淀粉的结构和性质进行了表征和分析，结果表明，普通玉米淀粉结构与含链淀粉50％和70％高链玉米淀粉结构不同；高链淀粉比普通淀粉难糊化，高链改性淀粉糊化受pH值影响较大，受温度影响较小；淀粉的冻融稳定性、透光率、溶解度、膨胀度和粘度受链淀粉的含量和改性的影响，但是，链淀粉含量超过50％时，则链淀粉含量对淀粉的膨胀度和溶解度影响不大；改性淀粉性质的影响因素中，影响粘度主要因素是交联反应，影响透明度、溶解度和膨胀度主要因素是羧甲基化改性；一氯乙酸用量、反应时乙醇浓度及碱性条件都会影响高链淀粉及其交联淀粉的羧甲基化改性效果，制备羧甲基化改性淀粉的最佳工艺是在pH值为10的60％的乙醇浓度介质中按一氯乙酸/淀粉质量比为55％进行取代反应。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷