中国天牛科新记录

记述了中国天牛科２新记录属,即密点天牛属ＥｓｔｉｇｍｅｎｉｄａＧａｈａｎ和筒粉天牛属ＣｙｌｉｎｄｒｅｃａｍｐｔｕｓＢｒｅｕｎｉｎｇ和６个新记录种,即杂纹驴天牛ＰｏｔｈｙｎｅｐａｕｌｏｐｌｉｃａｔａＰｉｃ,宽肩尖天牛Ｌｙｃｈｒｏｓｉｓｈｕｍｅｒｏｓａ（Ｔｈｏｍｓｏｎ）,密点天牛Ｅｓｔｉｇ－ｍｅｎｉｄａｖａｒｉａｂｉｌｉｓＧａｈａｎ,白带多毛天牛ＨｉｒｔｅｓｃｈｏｐａｌａｅａａｌｂｏｌｉｎｅａｔａＰｉｃ,斑胸墨天牛ＭｏｎｏｃｈａｍｕｓｂｉｎｉｇｒｉｃｏｌｉｓＢｒｅｕｎｉｎｇ和纵条筒粉天牛Ｃｙｌｉｎｄｒｅｃａｍｐｔｕｓｌｉｎｅａｔｕｓ（Ａｕｒｉｖｉｌｉｕｓ）。     

瓜栗病原真菌的鉴定

鉴定了广州地区瓜栗「Ｐａｃｈｉｒａ ｍａｃｒｏｃａｒｐａ（Ｃｈａｍ．ｅｔ．Ｓｃｈｌｅｃｈｔ．）Ｗａｌｐ．」上８种病原真菌,即大果拟茎点霉（Ｐｈｏｍｏｐｓｉｓ ｍａｃｒｏｃａｒｐａｅ Ｐ．Ｇ．Ｘｉ．Ｚ．Ｄ．Ｊｉａｎｇ ｅｔ Ｐ．Ｋ．Ｃｈｉ ｓｐ．ｎｏｖ．）,榴莲拟茎点霉（Ｐｈｏｍｏｐｓｉｓ ｄｕｒｉｏｎｉｓ Ｈ．Ｓｙｄ）、可可球二孢（Ｂｏｔｒｙｏｄｉｐｌｏｄｉａ ｔｈｅｏｂｒｏｍａｅ Ｐａｔ．）、胶     

尖天牛与坡天牛雌雄生殖器的比较研究——尖天牛分类地位的订正

记述了４种尖天牛和４种坡天牛的雄性外生殖器及雌性生殖器,分析比较了二类天牛在雌雄生殖器结构上的差异,二者区别显著,认为ＢｒｅｕｎｉｎｇＳ将尖天牛属（ＬｙｃｈｒｏｓｉｓＰａｓｃｏｅ）降为一个亚属并入坡天牛属（ＰｔｅｒｏｌｏｐｈｉａＮｅｗｍａｎ）的处理是不恰当的,应恢复其属级地位。最后结合后翅翅脉特点及外部形态特征对尖天牛属的属征进行了重新描述。     

中国细胫步甲属3新记录种

】本文记述了步甲科Ｃａｒａｂｉｄａｅ细胫步甲属ＡｇｏｎｕｍＢｏｎｅｌｉ３个中国新记录种：丽细胫步甲Ａｇｏｎｕｍ（Ｅｕｒｏｐｈｉｌｕｓ）ｃｈａｒｉｌｕｓ（Ｂａｔｅｓ），脊跗细胫步甲Ａｇｏｎ－ｕｍ（ｓ．ｓｔｒ．）ｓｃｕｌｐｔｉｐｅｓ（Ｂａｔｅｓ），南方细胫步甲Ａｇｏｎｕｍ（Ｎｉｐｐｏｎａｇｏｎｕｍ）ｍｅｒｉｄｉｅｓ（Ｈａｂｕ）。     

桃红颈天牛生物学特性及其防治

桃红颈天牛生物学特性及其防治ＢｉｏｌｏｇｉｃａｌＣｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆ．Ｒｅｄ－ｃｏｌｌａｒｅｄＬｏｎｇｉｃｏｒｎａｎｄＩｔｓＣｏｎｔｒｏｌ桃红颈天牛（ＡｒｏｍｉａｂｕｎｇｉｉＦａｌｄ）是核果类果树桃、杏、李等的重要害虫，遍布我省各地。桃...     

柑桔抗溃疡病品种叶细胞膜脂组分的研究

柑桔溃疡病（ＣＢＣＤ）是由Ｘａｎｔｈｏｍｏｎａｓ ｃａｍｐｅｓｔｒｉｓ ｐｖ．ｃｉｔｒｉ（Ｘｃｃ）引发的。本研究检测了抗ＣＢＣＤ柑桔品种和对Ｘｃｃ敏感品种叶细胞膜脂组分及含量。抗病品种及敏感品种之叶细胞膜脂种类相似。主要为磷脂酰胆碱（ＰＣ）、磷脂酰乙醇胺（ＰＥ）、磷脂酰甘油（ＰＧ）和磷脂酰肌醇（ＰＩ），其中ＰＣ和ＰＥ占总量的７５％以上，尤以ＰＣ居首。抗病品种ＰＣ、ＰＥ、ＰＧ、ＰＩ总含量（１．２４￣     

木天牛属Xylariopsis Bates一新种记述（天牛科：沟胫天牛亚科）

记述了采自云南省的木天牛属一新种－Ｘｙｌａｒｉｏｐｓｉｓａｌｂｏｆａｓｃｉａｔｅａ，模式标本保存在西南农业大学昆虫标本馆。     

用RAPD技术区分荸荠属中亲缘关系相近的两个种：Eleocharis dulcis和Eleoch

用ＲＡＰＤ技术鉴别了荸荠属中亲缘关系相近的两个种Ｅｄｕｌｃｉｓ和Ｅｓｐｈａｃｅｌａｔａ,根据３个１０碱基随机引物（ＳＣ１０－２３,ＳＣ１０－２５和ＡＢ０１－１８）获得的遗传距离值,用ＵＰＧＭＡ聚类方法的构建了来自８个样点的样本的分子系统树,在分子系统树中,这８个样点的样本被分为两组：Ｅｄｕｌｃｉｓ和Ｅｓｐｈａｃｅｌａｔａ。     

四川星天牛属一新种

记述了星天牛属一新种－－绿角星天牛Ａｎｏｐｌｏｐｈｏｒａ ｖｉｒｉａｎｔｅｎｎａｔｕｓ ｓｐ．ｎｏｖ。该新种归属于Ｃｙｒｉｏｃｒａｔｅｓ亚属,与其它已知种的主要区别是触角,３－１１节基部黄绿色及鞘翅具黄绿色绒毛小星斑。新种模式标本保存于西南农业大学昆虫标本馆。     

树干注射久效磷防治芒果红斑天牛

树干注射久效磷防治芒果红斑天牛Ｒ·Ａｈｍｅｄ，Ｍ·Ｆ·Ｋｈａｎ，Ｚ·Ｍａｔｅｅｎ＆Ｋ·Ｓａｍａｄ１９３４年，Ｈｕｓｓａｉｎ及Ｋｈａｏ首次报导芒果红斑天牛（Ｂａｔｏｃｅｒａｒｕｆｏｍａｃｕ－ｉａｔａ）是芒果树的一种严重虫害。其后，１９３９、１９４０、１...     

天牛科中国新记录

本文记述了从西南农业大学昆虫分类标本中发现的天牛科6个中国新记录种。即:寡刺细齿天牛Rhaphipodus fruhstor feri Lameere,灰尾刺虎天牛Demonax maximus Pic,宽带小硕天牛Cenodocus laosensis Breuning,绢白美鞘天牛Calothyrza margaritfera Westwood,郎氏象天牛Mesosa rondoni Breuning和拟鹿岛天牛Mimocagosima ochreipennis Breuning。     

天牛科中国新记录

从西南农业大学植保系的分类标本中,发现天牛科4个中国新记录种.即:长柄坡天牛 Pterolophia rondoniana Breuning,截尾并脊天牛 Glenea fissilisBrcuning,双带象天牛 Mesosa quadriplagiata Breuning,越南象天牛 Mesosatonkinea Brcuning。     

Gallium, germanium, indium, and iridium in lunar samples

Neutron activation analyses of gallium, germanium, indium, and iridium in eight lunar samples and in meteorites and rocks (including four calciulnrich achondrites and five terrestrial basalts) with similar bulk compositions are reported. Lunar gallium concentrations are remarkably constant at about 5 parts per million, three times higher and four times lower than those in eucritic (calcium-rich) achondrites and terrestrial basalts, respectively. Lunar germanium concentrations range from 相似文献   

Mineralogy, petrology, and surface features of lunar samples 10062,35, 10067,9, 10069,30, and 10085,16

The primary rocks are a sequence of titanium-rich basic volcanics, composed of clinopyroxene, plagioclase, and ilmenite with minor olivine, troilite, and native iron. The soil and microbreccias are respectively loose and compacted mixtures of fragments and aggregates of similar rocks, minerals, and glassy fragments and spheres. Impact events are reflected by the presence of shock metamorphosed rock fragments, breccias, and glasses and their resulting compaction to form complex breccias, glass-spattered surfaces, and numerous glass-lined craters. Chemistry of the glasses formed by the impact events is highly variable, and the high iron and nickel content of a few moundlike features suggests that at least some of the projectiles are iron and nickel-rich meteorites.     

Segregation of form, color, movement, and depth: anatomy, physiology, and perception

Anatomical and physiological observations in monkeys indicate that the primate visual system consists of several separate and independent subdivisions that analyze different aspects of the same retinal image: cells in cortical visual areas 1 and 2 and higher visual areas are segregated into three interdigitating subdivisions that differ in their selectivity for color, stereopsis, movement, and orientation. The pathways selective for form and color seem to be derived mainly from the parvocellular geniculate subdivisions, the depth- and movement-selective components from the magnocellular. At lower levels, in the retina and in the geniculate, cells in these two subdivisions differ in their color selectivity, contrast sensitivity, temporal properties, and spatial resolution. These major differences in the properties of cells at lower levels in each of the subdivisions led to the prediction that different visual functions, such as color, depth, movement, and form perception, should exhibit corresponding differences. Human perceptual experiments are remarkably consistent with these predictions. Moreover, perceptual experiments can be designed to ask which subdivisions of the system are responsible for particular visual abilities, such as figure/ground discrimination or perception of depth from perspective or relative movement--functions that might be difficult to deduce from single-cell response properties.     

Calibrating duckweeds: light, clocks, metabolism, flowering

The roles of photoperiodism and related light-dependent and hormonal processes in plants are not well understood. Rapid growth, aquatic habit, and adaptability to axenic culture make the Lemnaceae, or duckweeds, excellent material for investigating these topics and others in which highly defined conditions or the presence of organic substances are crucial. As a major example among several that are described, recent work with one species suggests a relation between some features of carbon dioxide flux and the photoperiodic timing mechanism, thus providing a system in which the biochemical basis of the latter may be explored.     

Strong, transparent, multifunctional, carbon nanotube sheets

Individual carbon nanotubes are like minute bits of string, and many trillions of these invisible strings must be assembled to make useful macroscopic articles. We demonstrated such assembly at rates above 7 meters per minute by cooperatively rotating carbon nanotubes in vertically oriented nanotube arrays (forests) and made 5-centimeter-wide, meter-long transparent sheets. These self-supporting nanotube sheets are initially formed as a highly anisotropic electronically conducting aerogel that can be densified into strong sheets that are as thin as 50 nanometers. The measured gravimetric strength of orthogonally oriented sheet arrays exceeds that of sheets of high-strength steel. These nanotube sheets have been used in laboratory demonstrations for the microwave bonding of plastics and for making transparent, highly elastomeric electrodes; planar sources of polarized broad-band radiation; conducting appliqués; and flexible organic light-emitting diodes.     

Fiber, food, fuel, and fungal symbionts

Virtually all plants of economic importance form mycorrhizae. These absorbing organs of higher plants result from a symbiotic union of beneficial soil fungi and feeder roots. In forestry, the manipulation of fungal symbionts ecologically adapted to the planting site can increase survival and growth of forest trees, particularly on adverse sites. Vesicular-arbuscular mycorrhizae, which occur not only on many trees but also on most cultivated crops, are undoubtedly more important to world food crops. Imperatives for mycorrhizal research in forestry and agriculture are (i) the development of mass inoculum of mycorrhizal fungi, (ii) the interdisciplinary coordination with soil management, plant breeding, cultivation practices, and pest control to ensure maximum survival and development of fungal symbionts in the soil, and (iii) the institution of nursery and field tests to determine the circumstances in which mycorrhizae benefit plant growth in forestry and agri-ecosystems.