毒害植物的

Aluminum toxicity is a major factor limiting plant growth on acid soil.

铝毒害是酸性土壤中限制植物生长的重要逆境因子。

Androgynus was a kind of hyperaccumulator in Cd, with critical value of 50 mg/kg, above which would cause poison in S. androgynus, and even dead when it was up to 800mg/kg; transfer coefficient would decrease with the increase in treated concentrations, which show that plant would protest Cd against transferring to above-grounds and causing poison.

以上结果说明五指山野菜是Cd超积累植物，且50 mg/kg时是五指山野菜正常生长的临界值，高于此浓度，将对其产生毒害，当浓度为800 mg/kg时，植株出现死亡；随处理浓度的增加，转移系数逐渐变小，说明植物在高Cd胁迫下阻止Cd向地上部分转移而产生更严重的毒害。

Aluminum is one of the most abundant elements present in the earth's crust.

摘要铝毒害是酸性土壤上限制植物生长发育的主要因素之一。

The oxides of nitrogen can have deleterious effects on materials, vegetation, and animal and human life

氮的氧化物对物质、植物、动物和人类生活有毒害效应。

The galanthus nivalis agglutinin is one kind of plant mannose combine agglutinin, it can integrate on the glycoprotein acceptor of insect enteron epithelial cell, and produces partial or system poisons to the insect and suppresses its growth.

雪花莲凝集素是目前与害虫治理有关且研究得比较多的一种单子叶植物甘露糖结合凝集素，能结合到昆虫消化道上皮细胞糖蛋白受体上，对昆虫产生局部或系统毒害后果，抑制害虫生长发育繁殖。

As for the monitor of water pollution, Lemna minor, Spirodela polyrrhiza shleid and Azalla imbricate Nakai could be used as the monitors for the naphthalene pollution in water body because of their sensitivity to it.

在净化过程中，萘对5种水生植物产生生理毒害作用，且随萘浓度的增加显示出明显的毒害效应，表现为呼吸强度受到抑制，叶绿素含量降低；对POD而言，凤眼莲、喜旱莲子草随萘浓度增加逐渐升高，而浮萍、紫萍则表现出先升高然后降低，满江红一直降低。

The optimal boron concentration for growth of pea (Pisum sativum L.) andcucumber (Cucumis Sativus L.) plants was screened by designing a series of boronconcentration in nutrient solution and the influeuce of boron deficiency or toxicityon integrity of cell membrane in different organs of the two plants was studied bymeasuring pH of the nutrient solution,〓 concentration and conductance in rootexudate solution and extracting solution of different organs from the two plants.

用不同浓度硼的营养液培养豌豆、黄瓜植株，筛选和确定在温室条件下生长所需的最适硼浓度和硼毒害浓度；进而通过对缺硼、对照和硼毒害处理后营养液pH变化，根分泌物和不同组织浸提液中K+浓度和电导率的测定，研究了缺硼和硼毒害对两种植物不同组织细胞膜完整性的影响。

Na+ vacuolar compartment plays an important role in adaption to Na+ toxity in plants, especially in pehalophyte.

Na+液泡内区域化是植物特别是盐生植物适应Na+毒害非常有效的手段，液泡型Na+/H+逆转蛋白在这一过程中起重要的作用。

He results show that the virus regained infectivity, and the tannins did not direct viricidal effect. Tannins extracted from Polygonum perfoliatum or Archontophoenix alexandrae seeds showed strongly anti-TMV activities separately. TMV virions seems to be aggregated when TMV incubated with the tannins by electron microscope. It seems that TMV coat protein bind to the tannins based on PAGE. Tannins did not reduce infectivity when applied either before or after TMV inoculation. It is proposed that tannins extracted from the 11 species inhibited TMV by binding with TMV coat protein to interfere with recognition site essential for viral coat protein. Tannins extracted from Euphorbia hirta, P. perfoliatum, P. cuspidatum reduce infectivity when applied immediately in N.

MV分别与这11种植物单宁混合后，通过透析除去单宁后，可恢复大部分侵染力，表明单宁对病毒粒体并无直接毒害作用；TMV与杠板归和假槟榔种子中提取的单宁分别混合后，电镜下观察粒体呈现明显的聚集现象；TMV外壳蛋白分别与这两种植物单宁混合后，聚丙烯酰胺凝胶电泳中CP泳带滞后；单宁在病毒接种前施用未降低TMV对叶片的侵染能力；这些结果表明植物单宁对TMV抑制作用可能是单宁与TMV-CP结合影响病毒对叶片侵染位点的识别而降低TMV侵染性，而这种结合是可逆的。

The experiments thus demonstrated some general influences of arbuscular mycorrhizae in the balance of plant mineral nutrition and alleviation of heavy metal toxicity, also the clear variation in fungal adaptation to soil contamination and affinity to host plants, and indicated the possibility of screening of fungal strains for specific application purposes.

试验结果证实了重金属污染条件下丛枝菌根平衡宿主植物矿质营养和减轻重金属毒害的普遍积极作用，同时表明不同真菌菌株对宿主植物适合性及对土壤适应性存在明显变异，显示了适应于不同应用目的筛选适用菌株的可能性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。