The above facts indicated that silicon accumulation in the rice leaf sheath inside, the leaf surface and the sclerenchymatous cell, played the physical barrier role, delayed the hypha of sheath blight expansion.5、Analysing the physiological and biochemical mechanism of the resistance to rice sheath blight improved by silicon application in several respects.(1) After being inoculated with R.solani, O2 and POD activities disordered, CAT activities obviously declined. O2 producingvelocity in 91SP\'s leaves and leaf sheaths of Si+ rice plants were lower than those of Siriceplants, MDA content in leaves and leaf sheaths of Si+ rice plants were lower thanthose of Si- rice plants significantly in three days after inoculating, SOD久久AV草、POD国产未成18禁止免费、CATactivities in leaf sheaths of Si+ rice plants were higher than those of Si- rice plantssignificantly in one day after inoculating, SOD、POD、CAT activities in leaves ofSi-treatment were higher than those of Si- rice plants significantly in three days afterinoculating. O2 producing velocity and MDA content in Lemont\'s leaves and leafsheaths of Si+ rice plants were lower than those of Si- rice plants significantly afterinoculating, and SOD18禁黄黄污污网站在线看、POD97久久人妻网站、CAT activities of Si+ rice plants were higher than those ofSi- rice plants significantly.

說明硅在水稻葉鞘內(nèi)側(cè)曰韩美女裸体视频A片久久、葉表和厚壁細(xì)胞積累欧美性爱A片影院，起到了物理屏障的作用伊人无码视频综合网，延緩了紋枯病菌的擴(kuò)展。5亚洲日韩激情无码一区、闡明了施硅增強(qiáng)水稻抗紋枯病的生理生化機(jī)制(1)接種紋枯病菌后，兩個(gè)水稻品種91SP和Lemont的葉鞘和葉片超氧陰離子自由基O2性紊亂黄色国产免费国产，CAT活性明顯下降；抗病品種91SP葉鞘和葉片施硅處理的O2產(chǎn)生速率小于缺硅處理日韩精品第7页，葉鞘和葉片MDA含量在接種第3 d后顯著低于缺硅處理，葉鞘SOD欧美色视频一区5区、POD中文字幕在线观看第一页在线观看、CAT活性在接種1 d后一直顯著高于缺硅處理，葉片SOD超碰碰免费、POD、CAT活性在接種3 d后顯著高于缺硅處理欧美就要操；感病品種Lemont葉鞘和葉片施硅處理的O2產(chǎn)生速率、MDA含量始終顯著小于缺硅處理欧美性交三级视频，SOD亚洲毛片不卡88AV在线、POD日韩小草在线、CAT活性始終顯著大于缺硅處理直接观看黄的免费网站。

After non-inoculated samples were treated with H2O2, peaks of protein had the trend of left-moving in resistant varieties, but trend of right-moving in susceptible varieties. So, when H2O2 existed, enchancement of POD activity impelled low-weight substance to polymerize high-weight protein in resistant varieties, but no difference in susceptible varieties.Samples from callus of five wheat varieties with varying degrees of resistance against wheat head blight were examined by FPLC.

對(duì)照樣品在過氧化氫水浴(35℃)處理后久久夜色精品国产欧美一区不卡，抗性品種的蛋白峰有&左移&現(xiàn)象性爱一级毛片，P_0峰有所提高91人妻视频nnnnnn，表現(xiàn)與赤霉病菌接種處理一致的趨勢(shì)免费观看在线Aⅴ播放，因而农村少妇A级毛片免费看，在H_2O_2存在的前提下黄色带三级片视频，抗性品種中POD活力的提高促使小分子量物質(zhì)聚合成大分子量的蛋白，而在感性品種中沒有這些變化的出現(xiàn)日本黄色视频高清网站。

To understand the relationships between the activities of superoxide dismutases, catalase, peroxidase and resistance of melon to gummy stem blight, dynamic changes of activities of SOD, CAT and POD in resistant accession PI 196477 and susceptible accession Lvbaoshi were analyzed after inoculation by Didymella bryoniae.

為了明確甜瓜蔓枯病抗性與SOD日韩加勒比一本无码精品、CAT和POD活性變化的關(guān)系jiujiu精品，采用甜瓜蔓枯病菌孢子懸浮液對(duì)抗病材料PI 196477和感病材料綠寶石進(jìn)行接種av天堂日韩，并于接種后測(cè)定葉片內(nèi)SOD、CAT和POD的活性變化久久精品国产清自在天天线。