逆境

Water stress is one of the most important abiological stress to maize seedling .In this study, we arm to identify the sensitive stage of maize seedling to water stress and select the material which tolerance to flooding. And we use waterlogging tolerance index to identify the sensitive stage of maize seedling. we have studied 20 inbred lines of maize which seedlings under water stress in three stage. The result show that the three leave stage is the most obvious stage to flood stress. In addition, we have analyzed ten of the inbred lines to re-act the waterlogging tolerance index. The result show good re-action. And the result also show that waterlogging tolerance index is a credible index to select waterlogging tolerance materials in seedling.

涝渍是玉米苗期主要的非生物逆境胁迫之一；本试验通过对20份玉米自交系进行苗期的淹水对照试验，采用了三个处理时期，并利用耐渍系数作为指标进行敏感时期的鉴定，结果表明三叶一心期是淹水的相对最佳时期；同时利用其中10份自交系对耐渍系数的重演性进行了分析，结果表明其重演性很好；同时结果还表明耐渍系数是耐渍性鉴定的一个可靠指标。

These results suggest that ZmNAC1 may play important roles in abiotic resistance pathways.

这些结果表明，ZmNAC1可能在植物逆境反应中起作用。

Many studies have demonstrated that ERF transcription factors have important roles in plant adaptation to abiotic stress.

研究表明，ERF类转录因子在植物适应非生物逆境的过程中起著非常重要的作用。

Many studies have demonstrated that ERF transcription factors have important roles in plant adaptation to abiotic stress.

研究表明，ERF类转录因子在植物适应非生物逆境的过程中起着非常重要的作用。

They can clean MDA and activity oxygen and other injurant. Escaping MDA and phase. The SOD, CAT, AsA in body of slash pine's half-sib have function normal and accordantly activity oxygen accumulate mass and keep full unction of cell and escape disturbing to physiological metabolize of slash pine's half-sib and keep them develop normal and escape them injure.

表明在干旱逆境条件下，湿地松各家系体内的SOD、CAT和AsA协调正常运行，清除体内产生的MDA和活性氧等有害物质，避免活性氧和MDA的大量积累，维护其细胞功能性的完整，保护湿地松各家系生理代谢活动不受干扰而能正常生长发育，使其免受伤害。

Cells growing aerobically are exposed to reactive oxygen species generated during metabolism.

生物在正常生长代谢过程中，会产生活性氧化物质(reactive oxygen species， ROS)，做为讯息传导分子，帮助生物抵抗逆境，顺利进行生长发育。

But K+ content in every organ of A.commans persicoides rootstocks was higher than that of other two almond rootstocks;the ratio of Na+/K+ in Amygdalus communis L.was higher than that of other two rootstocks.

盐逆境下植物器官之间Na+的区域化分配往往决定着植物整体水平的耐盐能力，Greenway和Munns提出，非盐生植物通过在根部贮存较多的Na+，以阻止Na+在地上部积累，有利于增强植物的耐盐性[1]。

The result indicated that yellow light could improve the leaf antioxidase activity, reduce EC, and benefit to improving the resistance to adversity.

本试验结果表明，黄光可以提高叶用莴苣的抗氧化酶活性，降低电渗率，有利于提高对逆境的抵抗能力。

Under arock,bravely Tanchunaodai grass,tenacious instinct for survival that it embraced the sun..people are often the case,the face of adversity and stress,often produce forward momentum.

片岩下的一棵不屈地探出脑袋的小草，求生的本能使它顽强地拥抱阳光…人也往往云云，在逆境和压力中，每一每一会孕育发生进步的动力。

SOD and POD were important antioxidant enzymes for resisting drought in seedlings of Broussonetia papyrijera L., which can effectively avoid the iniury of oxidative stress for the trees through inducing the plasma-membre protection system. But the function of CAT to resist drought was not obvious.

SOD和POD是构树幼苗抗干旱的重要抗氧化酶，它能够通过自身诱导抗氧化酶系统以提高适应能力而忍受逆境，但构树幼苗的CAT酶在抗干旱胁迫上的作用不明显。

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