5,172 Result(s)

Article

Recent advances in anther culture of Hevea brasiliensis (Muell.-Arg.)

The yield of pollen embryoids from cultured Hevea anthers was increased 4 fold by optimizing the proportion of ammonium nitrate to potassium nitrate in the dedifferentiation medium. For optimal differentiation of...

Z. Chen, C. Qian, M. Qin, X. Xu, Y. **ao in Theoretical and Applied Genetics (1982)

Article

Deoxycytidine reverses the suppression of nucleolar organizer regions' activity caused by BrdU

In this article we report that 5′-bromodeoxyuridine (BrdU) significantly suppresses the nucleolar organizer regions (NORs) activity of Chinese hamster cells (both dipliod cells and cell line Wg3-h) (P<0.001). One...

Yan Yongshan, Qian **, ** **ahui in Theoretical and Applied Genetics (1984)

Article

Sister chromatid differential staining and NOR activity of BrdU-resistant sublines

Two 30 μg/ml BrdU-resistant sublines and two 60 μg/ml BrdU-resistant sublines are induced from a Chinese hamster cell line Wg3h (HGPRT⁻) by one-step and two-step selections, respectively. By inoculating the cells...

Yan Yongshan, Qian **, ** **ahui in Theoretical and Applied Genetics (1985)

Article

Establishment and characterization of a continuous murine uterine cervix cancer cell line metastatic to lymph nodes and lungs

The murine uterine cervix cancer (MUCC) cell line was derived from a chemically induced Kunming mouse uterine cervix cancer (U27) and maintained in culture on solid substrates for over 100 passages. Cultures w...

Qian Shu-Sen, Gao **, Wang Ji-**n… in In Vitro Cellular & Developmental Biology (1987)

Article

Spontaneous acquisition of tumorigenicity and invasiveness by mouse lens explant cells during culture in vitro

The lens of the eye is one of the rare organs in which tumors do not occur spontaneously. It therefore appeared to us that lens cells would not present the background of spontaneous transformation toward malig...

L. Messiaen, S. Qian, G. De Bruyne… in In Vitro Cellular & Developmental Biology … (1991)

Article

Role of interspecies transfer of chromosomal genes in the evolution of penicillin resistance in pathogenic and commensal Neisseria species

The two pathogenic species of Neisseria, N. meningitidis and N. gonorrhoeae, have evolved resistance to penicillin by alterations in chromosomal genes encoding the high molecular weight penicillin-binding protein...

Brian G. Spratt, Lucas D. Bowler, Qian-Yun Zhang… in Journal of Molecular Evolution (1992)

Article

Comparative analysis of glycoprotein and glycolipid composition of virulent and avirulent strain membranes ofMycoplasma hyopneumoniae

The glycoproteins and glycolipids from membranes of virulent strain Z and avirulent strain M ofMycoplasma hyopneumoniae have been compared. The proteins and the glycoproteins were identified by SDS-polyacrylamide...

Dr. Jian Wen Chen, Lan** Zhang, Jiantao Song, Fen Hwang… in Current Microbiology (1992)

Article

Map** of the human integrin β7 gene (ITGβ7) to 12q13.13 by non-isotopic in situ hybridization

Elizabeth Baker, Grant R. Sutherland, Wei-Meng Jiang, Qian Yuan… in Mammalian Genome (1992)

Article

Establishment of somatic hybrid cell lines between Zea mays L. (maize) and Triticum sect, trititrigia MacKey (trititrigia)

Somatic hybrid cell lines were constructed by the fusion of protoplasts isolated from cell suspensions of Zea mays L. (maize, 2n = 20) and Triticum sect, trititrigia MacKey (trititrigia, 2n = 35), a perennial hyb...

T. B. Wang, M. Niizeki, T. Harada, R. Ishikawa… in Theoretical and Applied Genetics (1993)

Article

Effect of washing on the plasma membrane and on stress reactions of cultured rose cells

Cultured cells of Rosa damascena have been used as a model for studies of responses of plant cells to various stresses, including UV radiation, protein-synthesis inhibitors, and elicitors from pathogens. Many of ...

Yong-Chang Qian, Tuan Nguyen, Terence M. Murphy in Plant Cell, Tissue and Organ Culture (1993)

Article

Assessing nitrogen mineralization from soil organic matter using anion exchange membranes

A simple method to assess differences in potential contribution of organic nitrogen mineralization to plant available N among soils may be useful in fertility research as well as routine soil testing. We deplo...

P. Qian, J. J. Schoenau in Fertilizer research (1994)

Article

Factors affecting gibberellic acid production by Fusarium moniliforme in solid-state cultivation on starch

The production of gibberellic acid (GA₃) by Fusarium moniliforme M-7121 in solid-state culture was evaluated in flask cultures as well as in 3-I horizontal rotary reactors. The highest production rate of GA₃ was ...

X. -M. Qian, J. C. du Preez… in World Journal of Microbiology and Biotechnology (1994)

Article

RFLP-based phylogenetic analysis of wide compatibility varieties in Oryza sativa L.

Twenty-one wide compatibility varieties (WCVs) of rice together with three indica and three japonica testers were assayed with 160 DNA probes that were selected to represent the entire RFLP map at an average inte...

K. Zheng, H. Qian, B. Shen, J. Zhuang, H. Lin, J. Lu in Theoretical and Applied Genetics (1994)

Article

Resistance ofSclerotinia sclerotiorum to carbendazim

This paper covers the examination of EC₅₀ of carbendazim to diferent isolates ofS. sclerotiorum, the observation of the resistance development in a population of the pathogen, for working out whether carbendazim ...

Yang Qian, R. T. V. Fox in Journal of Northeast Forestry University (1994)

Article

Study of a low-selenium environment in China by INAA and Mössbauer spectrometry

The neutron activation analysis, γ coincidence spectroscopy, nondispersive hydrogen flame atomic fluorescence spectroscopy, and Mössbauer spectrometry were used to study the low-selenium environment of the Exi...

Chifang Chai, Jibin Tian, Qinfang Qian, Peiqun Zhang… in Biological Trace Element Research (1994)