نتایج جستجو برای: antagonistic activity

تعداد نتایج: 1143351  

2013
Grammatiki S. Kanini Efstathios A. Katsifas Alexandros L. Savvides Amalia D. Karagouni

Many studies have shown that several Greek ecosystems inhabit very interesting bacteria with biotechnological properties. Therefore Streptomyces isolates from diverse Greek habitats were selected for their antifungal activity against the common phytopathogenic fungus Fusarium oxysporum. The isolate encoded ACTA1551, member of Streptomyces genus, could strongly suppress the fungal growth when ex...

Journal: :International immunology 2004
Shin-ichiroh Saitoh Sachiko Akashi Takenao Yamada Natsuko Tanimura Makiko Kobayashi Kazunori Konno Fumi Matsumoto Koichi Fukase Shoichi Kusumoto Yoshinori Nagai Yutaka Kusumoto Atsushi Kosugi Kensuke Miyake

Toll-like receptor 4 (TLR4) and MD-2 recognizes lipid A, the active moiety of microbial lipopolysaccharide (LPS). Little is known about mechanisms for LPS recognition by TLR4-MD-2. Here we show ligand-induced TLR4 oligomerization, homotypic interaction of TLR4, which directly leads to TLR4 signaling. Since TLR4 oligomerization normally occurred in the absence of the cytoplasmic portion of TLR4,...

Journal: :Environmental science & technology 2013
Xinxin Hu Wei Shi Si Wei Xiaowei Zhang Jianfang Feng Guanjiu Hu Sulan Chen John P Giesy Hongxia Yu

The increased incidences of disorders of male reproductive tract as well as testicular and prostate cancers have been attributed to androgenic pollutants in the environment. Drinking water is one pathway of exposure through which humans can be exposed. In this study, both potencies of androgen receptor (AR) agonists and antagonists were determined in organic extracts of raw source water as well...

Journal: :Phytopathology 2002
Sophie Trouvelot Chantal Olivain Ghislaine Recorbet Quirico Migheli Claude Alabouvette

ABSTRACT To investigate the biocontrol mechanisms by which the antagonistic Fusarium oxysporum strain Fo47 is active against Fusarium wilt, a Fot1 transposon-mediated insertional mutagenesis approach was adopted to generate mutants affected in their antagonistic activity. Ninety strains in which an active Fot1 copy had transposed were identified with a phenotypic assay for excision and tested f...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
V J Csernus A V Schally

Antagonistic analogues of luteinizing hormone-releasing hormone (LHRH) belong to a class of compounds that can be utilized for treatment of some hormone-dependent cancers and gynecologic disorders. Recently, we synthesized and tested a large number of LHRH analogues for LHRH antagonistic activity in the dispersed pituitary cell superfusion system. This fast, reliable, and dynamic system made it...

Journal: :International Journal of Current Microbiology and Applied Sciences 2017

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