Ray Wu, as remembered by a former student

Some 35 years ago, I had the good fortune to be ac-cepted into Ray Wu’s lab as a graduate student. Ray was already well known for his pioneering studies in DNA se-quencing, and his lab was quietly humming with the ex-citement of the new approaches being developed for DNA labeling, sequencing and synthesis. Looking back, I am somewhat surprised that Ray accepted me into his lab-I was     

Profile of Dr.Xu Zhang

正Dr.Xu Zhang was conferred the Bachelor's degree of Medicine from Fourth Military Medical University in 1985.From 1990 to 1994,he carried out his Ph.D.study at the Department of Neuroscience,Karolinska Institute in Sweden.Then,he was appointed as lecturer,associate professor and professor successively at the Institute of Neuroscience,Fourth Military Medical University.In 1999,he was recruited as a principal investigator by the Institute of Neuroscience,Chinese Academy of Science.He received the outstanding young investigator award of National Natural Science Foundation of China in 1995.He was elected as Academician of Chinese Academy of Sciences in 2015.     

In memory of Professor Biao Ding(1960–2015)

<正>It is with profound sadness that we mourn the loss of Dr.Biao Ding,a full-professor in the Department of Molecular Genetics,Ohio State University(OSU),and a world-renowned plant biologist with leading authority in viroid research.He died suddenly on June 26,2015 in Prague,Czech Republic,while attending the International Conference on Viroids and Viroid-Like RNAs as a Keynote Speaker.Dr.Ding was born in 1960,in Kunming,Yunnan Province,China.He received his B.S.from Beijing Forestry University in1982,and was then selected as one of the first group of     

Profile of Dr. Xiao-Fan Wang

正Dr.Xiao-Fan Wang entered Wuhan University in 1978 to receive his college education following the reform of the education system.In 1982,shortly after admitted to the graduate school of the Institute of Genetics at the Chinese Academy of Sciences (CAS),he was sent as one of the first group of Chinese students under the CUSBEA (ChinaUnited States Biochemistry Examination and Application)     

Profile of Dr. Hualan Chen

正Dr. Hualan Chen is a virologist whose research focuses on understanding influenza virus and developing vaccines against this virus. She studied veterinary medicine as her undergraduate and graduate majors in Gansu Agricultural University, receiving her Bachelor degree and Master degree in 1991 and 1994, respectively. In 1997, she received her Ph.D. from the Graduate School of the Chinese Academy of Agricultural Sciences (CAAS). After three years of postdoctoral research at the Centers for Disease Control and Prevention in the United States, she was offered a professorship in 2002 at the Harbin Veterinary Research Institute of CAAS and was appointed as the Director of the     

Ke Hsin Kuo:A distinguished scientist and great mentor

Early years Professor Ke Hsin Kuo was bom in Beijing in 1923,and his childhood was spent in Harbin in northemstem China where his father worked as an engineer to build the local railroad.His early education was at best characterized by frequent disruptions,the first of which being the"9.18 Incidenf of 1931 when the Japanese Kwantung Army launched an assault in Shenyang(Mukden)on the local Chinese troops and quickly took control of all the Northeastern Provinces(Manchuria).He moved to Tianjin in the spring of 1936,where he continued his education by enrolling in the famous Nankai High School.However,his school life at Nankai was soon disrupted again by the eruption of full-scale war in July of 1937 after Japan attacked and occupied Peking.Together with his brothers,he fled to join his parents who had previously relocated to Chongqing.He studied in Chongqing for four more years to complete his high school education,during which classes were constantly being disrupted due to the frequent bombings of the city by Japanese airplanes.These bombings not only left him with long lasting memories of the war,but also bore him a permanent burn scar on his back as a result of a bomb that exploded just meters away from him.     

Debao Wang,the founder of nucleic acid biology and industry in People's Republic of China

Dr.Debao Wang(王德宝) was born on May 7th, 1918, inTaixing, Jiangsu Province, China.At the age of 18, he was admitted to the Agricultural Chemistry Department of the National Central University, and graduated in 1940.In the summer of 1943, Dr.Wang worked in the Department of Biochemistry, School of Biological Medicine, under the supervision of Prof.Libin T.Cheng (Zhang, 2020).At that time, he had a dream to contribute to the development of his motherland, which inspired him to study aboard.     

约翰·韦伯斯特——同事,良师益友,菌物学家（英文）

<正>John Webster played an important role in the history of the University of Exeter as a mentor,a colleague and an important influence on successive generations of fungal biologists.My first encounter with John Webster was as a young Lecturer,newly appointed in late 1993 to the Department of Biological Sciences at the University of Exeter.I spoke to John about joining him on one     

BIOGRAPHY OF PROFESSOR ZHEN YAO

Professor Zhen YAO, Ph.D., a distinguished cell biologist and a Member of the Chinese Academy of Sciences, Editor-in-Chief of Cell Research, passed away al 9:55 am on November 4th, 2005 in Shanghai at the age of 90. He is survived by his wife, Jing DING, his son Li Xing YAO, and granddaughter, Qin Yi YAO. Professor Zhen YAO (formerly T. YAO) was born in Changshu. Jiangsu Province. China, in October 1915. He graduated from the Department of Biology, Zhejiang University in 193…     

Celebrating 90 years of Peking University School of Life Sciences(1925–2015)

<正>The Department of Biology at Peking University was established in 1925,with Mr.Tan Xi Hong as its inaugural department head.In 1993,the department was renamed the School of Life Sciences.During the past 90 years,a steady stream of students has enrolled in the department in order to explore the secrets of life and to dedicate themselves to the advancement of society.     

Revisione delle specie: Actinomyces albus,A. chromogenus,A. odorifer,A. thermophylus,A. viridis,A. viridochromogenes,A. hominis,A. innominatus

Riassunto Lo studio comprende una revisione critico-sperimentale della specie Actinomyces albus, della quale vengono considerati come sinonimi circa 30 nomi speeifici, fra i quale A. chromogenus, A. odorifer, A. thermophylus p.p.; della specie é data una diagnosi ed una particolareggiata descrizione.Sono inoltre studiate le specie A. viridis, (= A. viridochromogenus) e A. innominatus, n. nomen. Quest'ultima é preceduta da una breve discussione sulla specie A. homini.

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Summary Twenty-six strains of Actinomyces albus are studied redescribed from morphological, cultural and biochemical standpoints. Many biological activities of A. chromogenus, A. odorifer and A. thermophilus are in common with other species of the same genus, so that they may be considered for sub-specific, (not specific) differentiation. A discussion on A. farcinicus, A. albidoflavus and A. aureus has been originated from mislabeling as A. albus; the group including the two last named species (flavus group) must be revised. A few strains classified A. farcinicus are in no doubt true A. albus, but this real specific entity remains to be revised from Nocard's strain. A. viridis, for the first time described by Lombardo-Pellegrino, has been redescribed three times as a new species under the same binomial, and the fourth as A. viridochromogenes. A. hominis Bostroem is an uncorrect determination for the species originally described by Waksmann and Curtiss, and it is renamed A. innominatus, the binomial A. (Streptothrix) hominis Auct. being a nomen ambiguum. In conclusion, 30 bionmial are appended in sinonimy to A. albus, including Cladothrix dichotoma Macé (1888) non Cohn, G. invulnerabilis Acosta et G. Rossi, C. odorifera Rullm. Actinomyces chromogenus Gasp., A. thermophilus Auct., p.p., A. (Streptothrix) Sanninii (Cif.) Westerd., A. Almquisti Duché, A. Gougeroti Duché, and so on.

     

六种鲟鱼消化酶活性的比较研究

测定了两个生长阶段 6种鲟鱼幼鱼胃、肠道和肝脏中蛋白酶、脂肪酶、淀粉酶活性。幼鲟消化酶活性在两个生长阶段变化不明显。 6种鲟鱼不同消化器官蛋白酶活性以肠道为最高 ,肝脏为最低 ,肝脏中的蛋白酶活性明显低于胃、肠道 (P <0 0 1)。不同消化器官脂肪酶活性 ,以肠道为最高 ,且肠道脂肪酶活性显著高于胃、肝脏 (P <0 0 1) ,胃中的脂肪酶活性与肝脏中的脂肪酶活性差异不明显 (P >0 0 5 )。不同消化器官淀粉酶活性 ,以肠道为最高 ,且明显高于胃、肝脏 (P <0 0 1)。幼鲟在第一阶段 ,肝脏中没有淀粉酶活性 ,其活性出现在第二阶段 ,且在此生长阶段 ,肝脏中的淀粉酶活性达到胃中的水平 (P >0 0 5 )。对 6种鲟鱼而言 ,除个别存在较大差异外 ,3种消化酶活性大体上都没有明显差异     

Patterns of intraspecific variation inAntennaria alborosea,A. corymbosa,A. marginata,A. microphylla,A. parvifolia,andA. umbrinella (Asteraceae:Inuleae)

Patterns of intraspecific variation were examined inAntennaria alborosea A. E. Porsild,A. corymbosa E. Nels,A. marginata Greene,A. microphylla Rydb.,A. parvifolia Nutt., andA. umbrinella Rydb. AlthoughA. alborosea was initially considered arctic in distribution, it became apparent that a southern montane element also exists. Our results suggest that morphological differences between arctic and southern montane specimens represent clinal variation. The additional morphological data for specimens that occur more than 1,500 km south of the species' range as it was initially described result in a better understanding of this once presumed arctic taxon. Morphological variation in the dioecious speciesA. corymbosa, A. marginata, A. microphylla, A. parvifolia, andA. umbrinella was greater between the genders than was geographic variation within each gender. These results demonstrate that both pistillate and staminate specimens must be examined in dioecious species ofAntennaria if morphological variation in the respective species is to be fully understood. Character size or number of broadly distributed species (A. microphylla andA. parvifolia) generally decreased with increasing longitude, whereas characters of species with more restricted distributions (A. alborosea, A. corymbosa, andA. marginata) generally increased in size or number with increasing latitude or longitude.Antennaria umbrinella was an exception in this respect.     

The genusAntennaria (Asteraceae: Inuleae) in western North America: Morphometric analysis ofAntennaria alborosea,A. corymbosa,A. marginata,A. microphylla,A. parvifolia,A. rosea,andA. umbrinella

Multivariate analysis of vegetative and reproductive characters was used to examine morphological relatedness amongAntennaria alborosea A. E. Porsild,A. corymbosa E. Nels.,A. marginata Greene,A. microphylla Rydb.,A. parvifolia Nutt.,A. rosea Greene, andA. umbrinella Rydb. Both pistillate and staminate plants were examined. Some of the characters examined were variable in one species, but stable in another (i.e., presence or absence of papillae on the achenes). Our analyses indicate that the seven species are morphologically distinct. It is hypothesized that theA. rosea agamic complex arose through hybridization amongA. corymbosa, A. microphylla, A. umbrinella, and possiblyA. dioica (L.)Gaertn. However, hybridization between the three former species and others, as well as their subsequent morphological responses to different environmental conditions causes confusion in recognizing the taxa.Antennaria angustifolia Rydb.,A. arida E. Nels.,A. confinis Greene,A. scariosa E. Nels.,A. foliacea humilis Rydb.,A. concinna E. Nels., andA. viscidula E. Nels. are considered to represent F 1 hybrids.     

Multiplex PCR for the discrimination of A. fumigatus, A. flavus, A. niger and A. terreus

Aspergillus pathogens usually infect immunocompromised patients with lethal outcome. We report a multiplex PCR assay for the discrimination of the most frequent Aspergillus pathogens, A. fumigatus, A. flavus, A. niger and A. terreus, through distinct amplicons of 250 bp, 200 bp, 150 bp and 450 bp respectively, derived from the rDNA gene of A. terreus and the aspergillopepsin genes of the remaining species.     

Genetics of Plant Development by L.A. Lutova,N.A. Provorov,O.N. Tikhodeev,I.A. Tikhonovich,L.T. Khodzhaiova,and S.O. Shishkova

Russian Journal of Genetics -