柄锈菌属的一个中国新记录种

报道柄锈菌属的一个中国新记录种：驴蹄草柄锈菌,寄主为三角叶驴蹄草,研究标本保存在赤峰学院菌物标本室（CFSZ）。     

主题图与传统信息组织方法的比较

用主题图理论的通用参考模型与来自图书馆学和信息构建领域的传统信息组织方法进行了综合比较,从主题图的视角去重新审视这些传统信息组织方法,找出了这些方法之间彼此存在的差异,并抽象出它们之间的共同特征,以便更加深入地理解主题图的理论内涵以及它对于更新传统信息组织方法的深刻意义。     

重庆市大生熊虫属2个新记录种研究

研究了重庆市2个缓步动物新记录种,分别是Macrobiotus harmsworthi Murray,1907（真缓步纲,大生熊虫科）和Macrobiotus hufelandi Schultze,1833（真缓步纲,大生熊虫科）。     

Geostatistics-based spatial distribution of soil moisture and temperature regime classes in Mazandaran province,northern Iran

Soil moisture regime (SMR) and soil temperature regime (STR) classes as soil classification criterions are required by US Soil Taxonomy because they affect genesis, use, and management of soils. The lack of sufficient soil moisture and temperature data requires the characterization of the pedoclimate on the basis of climatic data processed by simulation models. This research was conducted to consider the new approach for SMR and STR mapping. The objectives of this study were to compare the four interpolation schemes including ordinary kriging (OK), cokriging (Co-K), inverse distance weighting, and conditional simulation for interpolating the monthly mean total precipitation (MMTP) and monthly mean air temperature (MMAT) and to apply the Java Newhall simulation model for the MMTP and MMAT predictive values at each node of 1 km² grids across the Mazandaran province, northern Iran, for delineating the SMR and STR classes. The semivariogram analyses showed moderate to strong spatial dependence of data sets. The accuracy of interpolators varied within months for both MMTP and MMAT data sets. In most cases, OK and Co-K methods had the highest accuracy with lower mean error, root mean square error, and higher concordance correlation coefficient. The predictive maps show high diversity of SMR classes including Aridic, Ustic, Udic, and Xeric. The STR classes comprise Mesic, Thermic, and Cryic regimes. Results herein indicated that geostatistical approaches can potentially provide the opportunity for mapping of SMR and STR classes in data scarce regions.     

湘东第四纪红色黏土发育的典型土壤在中国土壤 系统分类中的归属

选取湖南省东部地区12个由第四纪红色黏土发育的典型土壤剖面,在对其成土环境、剖面形态特征及其理化性质进行研究的基础上,按照中国土壤系统分类方案,检索出了其诊断层和诊断特性,据此确定了其在中国土壤系统分类中的归属。结果表明,供试土壤剖面包含了淡薄表层、暗瘠表层、低活性富铁层、黏化层、聚铁网纹层等10个诊断层和诊断特性,其在中国系统分类体系中的位置分别为:淋溶土、富铁土和雏形土3个土纲;湿润淋溶土、湿润富铁土和湿润雏形土3个亚纲;简育湿润富铁土、铝质湿润淋溶土和铝质湿润雏形土3个土类;暗红简育湿润富铁土、表蚀简育湿润富铁土、网纹简育湿润富铁土等6个亚类;按照土族和土系划分标准,建立了黏质高岭石型酸性热性-普通铝质湿润淋溶土等9个土族和燕塘系(43-LY01)等12个土系。研究发现:受亚热带气候影响,许多土壤剖面发生了富铁铝化过程,且由于淋溶强烈,形成了聚铁网纹层,而现行的《中国土壤系统分类检索(第三版)》还不能给出一个合适的位置,因此建议在铝质湿润淋溶土亚类中增设一个可以反映相关特性的网纹铝质湿润淋溶土亚类。     

13种玉兰亚属植物的花粉形态扫描电镜观察

利用扫描电镜对13种(包括3品种)玉兰亚属植物花粉进行了观察,根据花粉形态、纹饰、孔穴等级等特征用类平均法(UPGMA)对其进行聚类分析,研究其亲缘关系及类群。结果表明:玉兰、武当木兰、‘玉灯’玉兰的花粉外形、大小较为接近,花粉表面较光滑,呈现沟状纹饰,且孔深孔径相近;紫玉兰、日本辛夷、‘黄鸟’玉兰的花粉表面纹饰存在较大的差异。聚类结果表明:在相似距离6.13水平上,根据花粉大小和形状将13个种(品种)聚类为两大类群,在相似距离7.76水平上,依据花粉表面纹饰和孔穴特征聚类为4个类群。     

Perennial kales: collection rationalization and genetic relatedness to other Brassica oleracea crop types

Perennial kale is a rare leafy vegetable and forage crop that is mainly vegetatively propagated and therefore expensive to conserve ex situ. A genebank collection of 47 perennial kales and 34 reference samples from the main Brassica oleracea crop types were characterized with seven microsatellite markers in order to verify potential redundancies and to obtain more insight in the position of perennial kales within B. oleracea. Based on the obtained results and on data from previous studies, the collection was reduced with 49% to 24 perennial kales. Considering this level of reduction, it was estimated that the investments made for the final verification by microsatellite analysis are returned after only 4-year time. A principal coordinate plot clearly separated the perennial kales from the other crop types of B. oleracea, except in one case. This deviating accession of vegetatively preserved perennial kale clustered closely together with the single seed-preserved accession of perennial kale included in the study. These two accessions occupied an intermediate position between the group of vegetatively propagated perennial kales and the group of seed-propagated Brassica accessions, suggesting a hybridization background with another B. oleracea crop type. The microsatellite study demonstrated a close genetic relationship among the investigated perennial kales and their unique position within B. oleracea.     

湘北地区典型水稻土的发生特性及其在中国土壤系统分类中的归属

选取湘北地区7个发育于2种母质的水稻土剖面样点,通过对其成土环境、剖面形态特征以及土壤理化性质进行野外观测和室内分析,按中国土壤系统分类方案,检索出诊断层和诊断特性,确定其在中国土壤系统分类中的归属,并评述土系的生产性能。结果表明:供试水稻土归属于水耕人为土亚纲下的简育和铁聚水耕人为土2个土类,底潜简育水耕人为土、普通简育水耕人为土、普通铁聚水耕人为土、漂白铁聚水耕人为土4个亚类;进一步按照土族和土系划分标准,划分出7个土族和7个土系。在相同成土环境下,同种母质发育的水耕人为土,土壤系统分类比土壤发生分类具有更强的划分能力。其划分的基层土壤单元(土族和土系),对农业生产、土地资源利用更具有指导意义。     

A new species,first report of a male and new distributional records for five species of Oligosita Walker(Hymenoptera:Trichogrammatidae) from China

Seven species of the genus Oligosita, a wellknown cosmopolitan genus of the family Trichogrammatidae that comprise egg parasitoids of coleopteran, hemipteran, lepidopteran and thysanopteran insects, are reviewed. Oligosita xinyangensis sp. nov.(Hymenoptera, Trichogrammatidae) is described in detail and illustrated;the male of O. nigroflagellaris Lin is reported for the first time. New distributional data are provided for O. japonica Yashiro, O. mediterranea Nowicki, O. pallida Kryger, O. polioptera Lin and O. shibuyae Ishii from China, and a key to all the Chinese species of the genus is given.     

植物病原细菌分类新进展

 按照现行细菌分类系统,植物病原细菌分属于原核生物界4个门中的3个,即:薄壁菌门、厚壁菌门、软壁菌门。目前为止,植物病原细菌共包括25属,120种,19亚种及219致病变种。分类地位变化较大的属有Corynebacterium,Erwinia,Pseudomonas及Xan-thomonas。