Analysis of Flavonoid Aglycons in Rhododendron of Sichuan Liangshan

IntroductionRhododendron is a widespread natural plant ofover 70 0 types[13] with differentmedicinal values.Rhododendron extracts,for example,are used inmedicines for chronic tracheitis,for suppressingcough,as antiphlogistic and anodyne,and forhighblood pressure[4 6] .The flavonoids and volatile oilsin Rhododendron leaves were reported to beeffective for the treatment of asthma and otherpulmonary complaints[7,8] . Liquor Jinjuan (anendemic antiphlogistic medicine) made usingRhododendron leav…     

小麦温光生态研究及其在生产中的应用进展

文章对小麦温光反应理论，温度和光照在小麦生长和发育过程中的相互关系，以及温光反应理论在生产实践中的应用新进展进行了总结，可为小麦温光生态的研究和小麦生产实践提供理论指导。     

槟榔植株不同器官营养组分含量测定

对槟榔植株不同器官的营养组分含量测定，结果表明，槟榔植株不同器官的营养组分和种类齐全，其所含的１８种氨基酸的组分总量变化趋势是，生殖器官（１８４．３５μｇ／（ｍｇ·ＤＷ），占总量的５４．９８％）＞营养器官（１５０．９７μｇ／（ｍｇ·ＤＷ），占总量的４５．０２％），它们在量上的差异显著，为８１．８９％，其幼果＞花梗＞根系＞花朵；而１１种矿质元素的总含量则以花朵＞幼果＞叶片，元素之间的量值差异程度以Ｍｇ＞Ｐ＞Ｋ＞Ｍｎ＞Ｆｅ＞Ａｌ＞Ｚｎ＞Ｂ＞Ｃｕ＞Ｍｏ＞Ｎｉ；由于槟榔的生境不同，营养物质中的三大营养素含量水平为：屯昌乌坡（５８．１０％）＞陵水提蒙（５７．７９％）＞乐东黄流（５５．２９％），量值差异为０．３１％～２．８１％，维生素类与胡萝卜素的含量变化不大．     

沙棘属植物天然产物化学组分的时空分布

沙棘属植物富含维生素、类胡罗卜素、黄酮类、甾醇、挥发油、５－羟色胺、超氧化物歧化酶、氨基酸、脂肪酸、有机酸和糖以及向量元素等１２类约３００余种化合物。分别以类群的进化顺序、海拔的高低、韧度的升高、经度的东移、果实的发育进程，以及实果的实采收期、每类成分中具体组分、年降水量、果实大小等为横坐标，以其含量为纵坐标，以图解的方式，探讨主要生物活成分在不同类群不同部位的时空分布规律。     

湖南白酒草属一新变种

本文发表了白酒草属一新变种，即细叶小蓬草Ｃｏｎｙｚａｃａｎａｄｅｎｓｉｓ（Ｌ．）Ｃｒｏｎｑ．ｖａｒ．ｇｒａｃｉｌｉｓＫ．Ｍ．Ｌｉｕ；     

甘肃大黄属（RHEUM）药用植物资源分布和开发利用研究

通过对甘肃大黄属药用植物资源的地理分布探讨，以及大黄属植物研究的分析，提出合理使用大黄属植物资源的重要性和建议、前景展望。     

L-拓扑空间中滤子的O-收敛

在L-拓扑空间中引入滤子的O-收敛理论，并讨论了滤子的O-收敛与网的O-收敛之间的关系．     

烷基苯热力学性质与分子结构之间的关系研究

计算并研究了烷基苯类化合物拓扑指数n、J、L与其热力学性质△Hf(g)^0、△Gf(g)^0、S(g)^0、logKp之间的相关性和选择性。该文所构建经验公式其相关性近于倪才华的结果，而选择性优于倪才华的。     

MGB probe assay for rapid detection of mtDNAl1778 mutation in the Chinese LHON patients by real-time PCR

Objective： Leber＇s hereditary optic neuropathy （LHON） is a maternally inherited degeneration of the optic nerve caused by point mutations of mitochondrial DNA （mtDNA）. Many unsolved questions regarding the penetrance and pathophysiological mechanism of LHON demand efficient and reliable mutation testing. This study aims to develop a minor groove binder （MGB） probe assay for rapid detection of mtDNA11778 mutation and heteroplasmy in Chinese LHON patients by real-time polymerase chain reaction （PCR）. Methods： Forty-eight patients suspected of having LHON and their maternal relatives underwent a molecular genetic evaluation, with 20 normal individuals as a control group at the same time. A real-time PCR involving two MGB probes was used to detect the mtDNA 1 1778 mutation and heteroplasmy. A linear standard curve was obtained by pUCmLHONG and pUCmLHONA clones. Results： All 48 LHON patients and their maternal relatives were positive for rntDNA11778 mutation in our assay, 27 heteroplasmic and 21 homoplasmic. Eighteen cases did not show an occurrence of the disease, while 9 developed the disease among the 27 heteroplasmic mutation cases. Eleven did not show an occurrence of the disease, while 10 cases developed the disease among 21 homoplasmic mutation cases. There was a significant difference in the incidence between the heteroplasmic and the homoplasmic mutation types. The time needed for running a real-time PCR assay was only 80 min. Conclusion： This real-time PCR assay is a rapid, reliable method for mtDNA mutation detection as well as heteroplasmy quantification. Detecting this ratio is very important for predicting phenotypic expression of unaffected carriers.     

具广义单调Fourier系数函数的L′收敛和L′逼近

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