However, the molecular pathway that regulates the H2O2 level in guard cells remains largely unknown.
然而调节h2o2在气孔保卫细胞内的含量的分子机制还很不清楚。
Thus, we conclude that the sites of H_2O_2 generation induced by ABA in guard cells are plasma membrane and chloroplasts.
从以上的实验结果推知：aba诱导蚕豆保卫细胞中H_2O_2的产生位点是质膜和叶绿体基质。
The stoma size and chloroplast number in guard cells could be regarded as the reliable indicators of ploidy levels to identify seedlings in the early stage.
再生植株叶片气孔大小和气孔保卫细胞内叶绿体数目可以作为从再生植株中早期鉴别四倍体植株的可靠指标。
Taken together, these results suggest that H2O2 could probably act as upstream component of NO signaling and NO negatively regulate H2O2 generation during ABA-induced stomatal closure in guard cells.
这些结果表明，在ABA诱导气孔关闭过程中，H2O2可能在NO的上游起作用并受NO的负反馈调节。
He spent part of the war in the National Guard.
他战时在国民警卫队服役了一段时间。
The Coast Guard needs to decipher garbled messages in a few minutes.
海岸警卫队需要在几分钟内破译含混不清的讯息。
Each corner had a guard tower, each of which was exactly ten metres in height.
每个角都有1个警戒塔，每个塔刚好10米高。
Officially, the guard was to protect us. In fact, they were there to report on our movements.
据宣称，警卫是来保护我们的。实际上，他们是来监视我们的行动的。
Three men were arrested and one was under guard in a hospital.
有三人被捕，一人在医院里受到监视。
We were locked in the paddy wagon while our guard watched a feeble pro-Qaddafi protest.
我们被锁在囚车里，而我们的警卫则看着一场支持卡扎菲的微弱抗议。
Alo on display will be electronic engine control, currently in production to upgrade CH-47 and UH-60 helicopter engine for the U.S. Army and National Guard.
同时展出的还将有发动机控制电子装置，目前正在生产并用于升级美国陆军和国民警卫队的CH-47和UH-60直升机发动机。
I'm going to guard the Queen and stand outside the palace in my tunic.
我要穿着我的束腰外衣站在宫殿外面守卫女王。
Ensure the guard is in place before operating the machine.
一定要在防护装置放到位后再开机器。
Mr. Ying is well-known for his portrayal of a prison guard in the film "The Last Emperor."
英先生因在《末代皇帝》中扮演一个监狱看守而出名。
The governor has now called in the National Guard to assist the clean-up operation.
地方长官现已征召国民警卫队来协助整顿行动。
The guard put a youth in a headlock and dragged him away.
看守用肘部卡住年轻人的脖子，把他拖走了。
The National Guard says an armoury in Fairmont has opened to shelter stranded motorists.
国民警卫队声称费尔蒙特的一个军务楼已经开放，以收容受困的汽车司机们。
The call-up of National Guard and reserve units began in late August.
国民警卫队和预备役部队的征召八月下旬开始。
The guard fired four shots in rapid succession.
卫兵接连开了四枪。
The city had arranged for the National Guard to be brought in.
该市已筹划调入国民警卫队。
In spite of the awkward questions the minister never let his guard fall for a moment.
尽管遇到的是些令人尴尬的问题，部长却没有丝毫的失误。
We decided that Mike would go in before lunch，to find out where the guard was standing.
我们决定让迈克在午饭前进去，看看那个警卫站在什么地方。
The advance-guard of the expected procession now appeared in the great gateway, a troop of halberdiers.
期待中的游行行列的前卫出现在大门口，是一队戟兵。
The guard waved his welcome flag, the engine-driver whistled in cheerful response, and the train moved out of the station.
信号员挥动着他受欢迎的小旗，火车司机愉快地鸣笛作为回答，火车驶出了车站。
In the meantime, since my watchdog died today, you may take his place and guard my henhouse.
同时，因为我的看门狗今天死了，你可以代替他的位置看守我的鸡舍。
In the early twentieth century, small magazines and the inventive graphics used on them created the face of the avant-guard.
在20世纪初，小型杂志和上面使用的有创意的图形创造了先锋派的面孔。
American Coast Guard officials in Florida say they have returned to Cuba a group of would-be migrants who tried to make their way to the United States in an unusual vessel—a floating truck.
佛罗里达州的美国海岸警卫队官员说，一群移民试图乘坐一艘不同寻常的船——一辆漂浮的卡车——前往美国，他们已经被遣返回古巴。
As soon as they had let the fowls out, in the early summer mornings, they had to take their guns and keep guard; and then again as soon as evening began to mellow, they must go once more.
在初夏的早晨，他们一放完鸡，就得拿起枪来站岗；等到天色渐渐柔和下来，他们又得走了。
In the end a guard arrived in his car, and the lion just got off our car and started smelling the guard's hand as if nothing was the matter.
最终，一个警卫开车来了，狮子就从我们车上下来，开始嗅着警卫的手，就好像什么都没发生似的。
After spotting a wallet on the front seat inside a parked car with its window down, he stood guard in the rain for about two hours waiting for the owner to return.
他透过摇下的车窗，在一辆停着的车的前座上发现了一个钱包，于是在雨中守了大约两个小时，等待车主回来。
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