In order to find new kinds of antibacterial agents, a primary screening model has been set with the DNA gyrase B subunit as a target, and then the active compounds of positive strain were purified. From Mycobacterium phlei, we isolated a novobiocin supersensitive mutant M.phlei SS12 and a resistant ~mutant M.phlei RR11 with NTG and UV.

實驗采用Mycobacteriumphlei為出發(fā)菌株免费精品国产高清在线观看，利用NTG和紫外線復(fù)合誘變得到新生霉素特異性的超敏菌株M.phleiSS12和耐藥菌株M.phleiRR11国产在线精品二区，建立了以DNA回旋酶B亞基為靶點的抗結(jié)核藥物的篩選模型毛片免费全部播放无码直播；并應(yīng)用此模型對1600株真菌和100株放線菌發(fā)酵液進(jìn)行了初篩狼友视频永久在线在线视频，獲得了38株陽性菌，陽性率為2.4%日本小视频免费；對陽性菌株3277的發(fā)酵液進(jìn)行了提取分離亚洲人人看，得到X1和X2兩個活性化合物。

Unsurprisely,These three microorganisms decreased as the storage time increases.84 strains lactobacillus were isolated during the detection period in the pickled gingers stored in low temperature.By physiology and biochemistry methods,32 strains L.plantarums,6 strains L.brevis,2 strains Lacto...

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The character of flower colour and high nicotine conversion inherited steadily,the average nicotine content of their offsprings decreased,while nornicotine content increased significantly.

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There was significant allomatric growth of Phalaris arundinacea and Phalaris arundinacea between ramets height and biomass or constituent biomass, between ramets biomass and constituent biomass in wet and drought environments. And the relationship between ramets biomass or height and ramets quantitative characteristics also followed allomatric growth for Phragmites australis and Phragmites Jeholensis in wet and drought environments.

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Soaking seed of rice and wheat with zymolytic liquid of Trichoderma harziaiarum, Trichoderma DWC and Trichoderma viride, comparing with germinate ratio, germinate force, root length, bud length and ratio of root to bud, the results show that 50 times dilute zymolytic liquid of Trichoderma harziaiarum has a relatively notable promote role for germinate of seed .The effect of Trichoderma viride to germinate of seed is not evidence. Trichoderma DWC for seed sprout has certain inhibition.

據(jù)此又粗又硬一级A片，采用哈茨木霉作為出發(fā)菌株黄网占在线，通過離子束誘變，從大菌落株中篩選出促進(jìn)生長的高產(chǎn)突變株——h-13菌株黄色视频三级片真人，通過對用該菌株發(fā)酵液處理后的水稻及小麥的種子的各項生理生化指標(biāo)的測定免费一级a片在线播放视频，發(fā)現(xiàn)該菌株比其它菌株更能促進(jìn)水稻和小麥的活力和發(fā)芽率，三天時小麥的總根長為3.03cm天天狠天天透天干天天xa55，比對照的1.42cm的兩倍還多黄色三级人人操，并且能夠明顯提高種子發(fā)芽后的淀粉酶和蛋白酶的活力，其活力都是對照的兩倍左右成年人AV网站。

Discover in Ping Yuanxin Su Tieye of lake of celestial being of 10 individual plant gives birth to plant; Bai Leshu to be in those who join an administrative division to plant among them group of amounts amount to 160 individual plant, give priority to; to be in with seedling benevolence change fine-toothed comb 3 pointed fir amount to; of 300 individual plant to make the same score Yuan Banfeng carry on one's shoulder to Ren Douxin of; of 100 individual plant sees Yu Qingxin is mixed only then promote, peace of; of above of 1000 individual plant, river source and broadleaf plant mountain discover the amount Su Tie brake is planted group, aggregate; of hundreds individual plant only then allow new discovery tree of silver-colored magpie of 57 individual plant.

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By the pot experiment in nitrogen-free sand, the difference of the parental strain and marked strains with cfp gene on three cultivars was tested. One marked strain which was not significantly different with the parental strain for the competition stady with soil indigenous strains under field conditions .

通過無菌砂培試驗中文字幕在线免费观看网址，進(jìn)行了標(biāo)記菌株與出發(fā)菌株在三個品種上的差異性檢測免费观看国产黄网站在线，選出一株在瘤數(shù)、植株干重黄网站在线视频观看、葉綠素含www.2014av、全氮含量等各方面指標(biāo)與出發(fā)菌株最為接近的標(biāo)記菌株用于控制條件下的田間小區(qū)試驗，比較標(biāo)記菌株與土著菌株在三個品種上的競爭結(jié)瘤能力欧美XXXXX高潮在线观看，結(jié)果表明

The illumination is of no effect on the germination rate of oospores of Phytophthora sojae.30 single-oospore isolates obtained from the test strain of Phytophthora sojae Ps-H2 (Race 1 ) were evaluated using hypocotyl-inoculation method for race phenotype on soybean cultivars. One clone phenotype ( race 1 )was selected randomly for further isolation and virulence identify .

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To control tobacco brown spot disease rationally, reduce resistance to fungicide and reduce pesticide pollution, 96 strains of Alternaria altemata were isolated from 11 region of Yunnan province and all isolates were determined their resistance to dimethachlon. The results indicated that of all tested isolates, there were 28 high resistance, 29 middle resistance and 29 low resistance isolates respectively.

為合理防治煙草赤星病一区二区亚洲，減少抗藥性產(chǎn)生和農(nóng)藥殘留18紧网站，從云南省11個地州分離煙草赤星病菌菌株96株，就分離菌株對菌核凈的杭藥性進(jìn)行了測定欧美在线亚洲一区二区欧美，結(jié)果表明无遮无码免费裸交视频暖暖，供試菌株中高抗菌株28個，中抗菌株39個，低抗菌株29個精精国产XXXX视频在线my。

In this study, as a original strain, antagonistic bacterium Ata28 was mutated by UV, UV+LiCl, DES and Microwave irradiation; the very goal of the research is to improve the control efficiency of Ata28 strain against tobacco brown spot and obtain strains advanced both in antagonism and biological characteristics, further provides theoretics and practical experience to the production.

采用紫外線和氯化鋰復(fù)合誘變Ata28菌株美女下面网站，通過預(yù)備實驗，計算Ata28菌株在不同誘變時間的致死率和正變率538免费精品视频，選擇該菌株的最佳誘變時間10s国产一国产一级毛片视频在线，15s誘變；通過平板對峙培養(yǎng)日日摸日日碰日日添夜夜爽，篩選出8個突變菌株在PDA平板上可明顯抑制Tbs3的生長www.色视频在线，抑菌帶高于出發(fā)菌株Ata28，抑菌帶最大值達(dá)9.7mm五月丁香六月综合欧美在线观看；經(jīng)溫室控病初篩和復(fù)篩試驗手机在线看片91，獲得了對煙草赤星病有較好防效的突變菌株Uv1-190、Uv1-199桃色阁国产精品，煙苗經(jīng)Uv1-190国产美女爆乳主播在线播放、Uv1-199菌液處理3d后，接種Tbs3的防治效果達(dá)51.3％综合久久本道中文字幕www、54.9％96人人操人人干人人，比出發(fā)菌株Ata28的防治效果好。