搜索结果: 1-15 共查到“DON”相关记录133条 . 查询时间(0.093 秒)
为研究控制禾谷镰孢菌生长及抑制其脱氧雪腐镰刀菌烯醇（Deoxynivalenol，DON）产生的安全、有效生物防治技术，利用植物内生菌分离技术从小麦发病麦穗中分离得到的256株内生菌，通过平板对峙、共培试验，筛选到1株可显著抑制小麦赤霉病菌生长及降低DON含量的拮抗内生细菌YB-144。通过其形态特征、生化特性和16S rDNA序列比对，结果表明，菌株YB-144为贝莱斯芽孢杆菌，菌株YB-144...
Don't forget your roots: constant-time root finding over F2m
Side-channel Attack Post-quantum Cryptography Code-based Cryptography
2019/7/15
In the last few years, post-quantum cryptography has received much attention. NIST is running a competition to select some post-quantum schemes as standard. As a consequence, implementations of post-q...
禾谷镰刀菌Fgap1转录因子调控Tri基因表达及DON毒素合成
Fgap1转录因子 禾谷镰刀菌 DON毒素 调控机制
2020/2/27
DNA序列同源比对分析预测出镰刀菌氧胁迫调控因子Fgap1在DON合成基因簇的Tri5和Tri10基因上有结合位点。为阐明Fgap1转录因子在禾谷镰刀菌的Tri基因表达和DON产生中的作用,本研究以野生型PH-1和突变株⊿Fgap1为试验材料,通过菌落形态观察、菌丝生长速率、菌丝结构观察分析氧压敏感性,通过实时荧光定量PCR技术分析Tri基因在不用氧化压力下的表达量,并采用HPLC法测定DON毒素...
Land cover change in Botswana savannas:Don't blame the elephants（图）
Land cover change Botswana savannas Don't blame the elephants
2017/11/23
Why are drylands changing in the Chobe district of Northern Botswana? A new study tracks differences in the savanna there across 30 years, and provides information that will allow governments and non-...
Humans Don't Use As Much Brainpower As We Like To Think（图）
Humans Don't Use Much Brainpower We Like To Think
2017/11/23
For years, scientists assumed that humans devote a larger share of their daily calories to their brains than other animals. Although the human brain makes up only 2 percent of body weight, it consumes...
Mind the Gap: Where Provable Security and Real-World Messaging Don't Quite Meet
cryptographic protocols messaging implementation position
2017/10/10
Secure messaging apps have enjoyed huge uptake, and with the headline figure of one billion active WhatsApp users there has been a corresponding burst of academic research on the topic. One might ther...
Fruit Fly Muscles With A Hypertrophic Cardiomyopathy Mutation Don’t Relax Properly（图）
Fruit Fly Muscles Hypertrophic Cardiomyopathy Mutation Don’t Relax Properly
2017/10/25
Using fruit flies, Johns Hopkins researchers have figured out why a particular inherited human heart condition that is almost always due to genetic mutations causes the heart to enlarge, thicken and f...
Don’t let their appearance fool you: Thimble-sized, dappled in cheerful colors and squishy, poison frogs in fact harbor some of the most potent neurotoxins we know. With a new paper published in the j...
为明确不同杀菌剂防治小麦赤霉病和减少小麦籽粒中DON(脱氧雪腐镰刀菌烯醇)毒素积累的效果, 于大田人工接菌条件下进行了不同杀菌剂对小麦赤霉病的防治试验, 并于收获期测定了不同药剂处理的小麦籽粒中DON毒素含量。结果表明:两种处理方式下, 50%多菌灵WP, 30%多·酮SC, 25%戊唑醇WP, 25%氰烯菌酯SC和70%甲基硫菌灵WP处理中, 除先喷药后接菌条件下25%戊唑醇WP在病粒率和籽粒中...
Penn Biologists Show How Plants Turn Off Genes They Don’t Need（图）
Penn Biologists Plants Turn Off Genes They Don’t Need
2017/9/5
A plant has one genome, a specific sequence of millions of basepairs of nucleotides. Yet how this genome is expressed can vary from cell to cell, and it can change as a plant goes through various life...
戊唑醇不同防治时间对小麦赤霉病发生和籽粒中DON毒素积累的影响
小麦 小麦赤霉病 防治时期 脱氧雪腐镰刀菌烯醇
2018/3/19
为明确戊唑醇防治小麦赤霉病以及减少籽粒中DON (脱氧雪腐镰刀菌烯醇) 毒素积累的关键时期, 本研究于2015年和2016年在河南省焦作市温县进行了小麦花期前后不同时间喷施25%戊唑醇可湿性粉剂防治小麦赤霉病和减少籽粒中DON毒素积累的效果评价。试验结果表明:在2015年‘豫保1号’和2016年‘周麦18’上, 齐穗期 (Ⅰ-3, DAA=-1, Zadoks=59) 、始花期 (Ⅱ-1, DAA...
If they’re quick about it, “hot” electrons excited in a plasmonic metal can tunnel their way across a nanoscale gap to a neighboring metal. Rice University scientists said the cool part is what happen...
Despite the fact that all current scientific white-box approaches of standardized cryptographic primitives have been publicly broken, these attacks require knowledge of the internal data representatio...
Shor's Algorithm and Factoring: Don't Throw Away the Odd Orders
Shor's algorithm factoring
2017/2/20
Shor's algorithm factors an integer NN in two steps. The quantum step computes the order of amodNamodN where aa is relatively prime to NN. The classical step uses this order to factor NN. Descriptions...
Premature babies don't use sensory-prediction brain process that may be key to development
Premature babies don't use sensory prediction brain process
2017/2/16
Babies born prematurely don't use their expectations about the world to shape their brains as babies born at full term do, important evidence that this neural process is important to development.The f...