The structure of ArsA ATPase with its ligand, arsenite, either on membranes or in solution, was revealed. The current trimeric ring-like structure of this protein doubts the previous dimeric model and gives deeper insight on this protein's physiological roles.

對亞砷酸根復(fù)合體ArsA蛋白質(zhì)分子結(jié)構(gòu)的揭示顯示了該蛋白在亞砷酸根存在情況下国产性行为视频，在膜上和水溶液中都是環(huán)形三聚體欧美性爱三级网站，對前人的二聚體模型假說提出了置疑爱爱小说网，并為解釋它的生理功能提供了重要的結(jié)構(gòu)信息恶亚洲黄色电影免费看。

Objectives The purpose of this study was to evaluate the effect and mechanism of As〓O〓-gelatin-coating stents on rabbits'aortas and smooth muscle cells.

目的 研究氧化砷-明膠涂層的超彈性NiTi支架對兔主動脈組織及平滑肌細胞的作用，旨在探討氧化砷預(yù)防支架內(nèi)再狹窄的機制欧美操逼视频网站免费看。

A compartmented soil-glass bead culture system was used to investigate characteristics of arsenic accumulation in iron plaque and in mature rice plants irrigated using water with arsenic in greenhouse.

結(jié)果表明日韩女性黄色性视频，水稻的秸稈生物量及其籽粒產(chǎn)量并沒有受到不同來源砷的顯著影響；灌溉含砷水處理的兩品系水稻根表鐵氧化物沉積的數(shù)量（YY-1：196 g.kg^-1日韩在线观看网红自拍视频，94D-64：75.8 g.kg^-1）高于對照（YY-1：175g.kg^-1成年人在线网站，94D-64：60.1 g.kg^-1），但差異不顯著亚洲美女你懂的。

It is essential to know how arsenic is taken up by and how it metabolized in plants and microbe.

了解微生物和植物對無機砷的代謝機制福利在线看，對認識和控制土壤中砷的風(fēng)險至關(guān)重要。

Under low arsenic treatment (10 mg·kg-1), more arsenic was translocated from roots to stalks and leaves, whereas no changes were found for these in other arsenic treatments.

兩個品種水稻各部位砷的轉(zhuǎn)運系數(shù)在低砷處理時（10 mg·kg-1）出現(xiàn)顯著的升高人人操人人干干人人操人人，而在其他處理條件下保持不變强伦姧人妻一区二区。

This anion pump is composed of two subunits, the catalytic 63KDa ArsA, a hydrophilic protein, when purified, exhibits oxyanion-stimulated ATPase activity, the hydrophobic 45. 5KDa ArsB protein, located in the inner membrane of E. coli, is the putative anion translocating channel and also serves as the anchor for ArsA to attach on the membrane.

ArsATP酶由水溶性的63KDa的ArsA蛋白和膜整合的46KDa的ArsB蛋白組成，ArsA蛋白是催化亞基毛片一级AB毛片一级，具有亞砷酸鹽和亞銻酸鹽激活的ATP酶活性国产女秘书免费视频，ArsB蛋白則構(gòu)成轉(zhuǎn)運亞砷酸鹽和亞銻酸鹽的陰離子通道，同時作為ArsA蛋白在膜上的結(jié)合位點国产h视频在线观看免费。

People have paid attention to the pollution of soil and water quality caused by using organic arsenic chemistry reagent to prevent and cure apple-tree canker in our apple area, so it has an important purpose to seek a harm-free way for sustaining development of apple. The tests studied the effect of prevention and cure on apple-tree canker with EM mud, EM liquid, 40%'Fumeishen powder' and contrast. The results showed that the EM mud was superior to the EM liquid, 40% 'Fumeishen powder' and contrast. The prevention and cure effects of EM in 2006 and 2007 were 92.7% and 93.5%, while the recurrence rates of canker scars 1.8% and 2.8% respectively. And the healing effect of scar is 50.4%. So, it was considered as a new way to prevent and cure apple-tree canker with EM mud.

中國各蘋果主產(chǎn)區(qū)果農(nóng)長期使用有機砷等化學(xué)制劑防治腐爛病偷拍无码日韩丝袜视频，對土壤、水質(zhì)等環(huán)境造成的污染已引起人們的關(guān)注亚洲国产综合无码一区，尋求無公害的方法防治腐爛病在线无码免费网站，對蘋果業(yè)可持續(xù)發(fā)展具有重要意義；本試驗設(shè)EM活性菌泥涂抹WWW.97人人操.COM、EM活性菌液涂抹国产精品免费午夜在线a、40%福美砷可濕性粉劑50倍液刮涂和對照（只刮除腐爛病疤，不涂藥）4個處理欧美午夜操b视频，三次重復(fù)欧美一级做一级a做一级，進行了蘋果樹腐爛病的防治研究；結(jié)果表明黄色的网站在线视频，EM活性菌泥在防治效果久久激情日韩精品视频、病疤復(fù)發(fā)率和促進病疤愈合效果方面均優(yōu)于其它處理，其當(dāng)年和第二年4月的防治效果分別為92.7%aⅴ876视频、93.5%国产www77爽777，病疤復(fù)發(fā)率分別為1.8%、2.8%A片视频免费观看在线，促進病疤愈合效果也最好（50.4%）黄片黄片黄片黄片黄片黄片黄片黄片黄片；因此，作者提出亚洲三级片啪啪，將EM活性菌融入粘泥載體中制成菌泥为爱搞点激情在线，涂抹在腐爛病疤上，以菌治菌国产精品免费视频XXXX，是防治蘋果樹腐爛病的新途徑免费三级网址。

A new technology on the removal of arsenic from yellow phosphorus was studied based on the situation of yellow phosphorus purification in Yunnan,and the principle and process was briefly introduced.

利用高壓靜電場對工業(yè)黃磷進行處理，結(jié)果顯示：在電場的作用下能分離除去砷，經(jīng)三級處理脫砷率可達90%以上国产A级特黄的片子试看，黃磷回收率在99.9%以上人人操人人看人人搞。

A new technology on the removal of arsenic from yellow phosphorus was studied based on the situation of yellow phosphorus purification in Yunnan,and the principle and process was briefly introduced.

利用高壓靜電場對工業(yè)黃磷進行處理，結(jié)果顯示：在電場的作用下能分離除去砷伊人影院在线操在线干影院，經(jīng)三級處理脫砷率可達90%以上男人j放进女人P全黄在线网站，黃磷回收率在99。

A review is given on speciation analysis including hyphenated techniques,such as high-performance liquid chromatography,gas chromatography,capillary electrophoresis and spectral analysis,and so on.

而在一般的測試方法中都是測試樣品中各價砷的總含量欧美成狂野欧美在线观看，不能給出有關(guān)毒理性的確切信息在线亚洲中文，這樣就不利于研究砷對環(huán)境和人類生活的危害。