CHARACTERIZATION OF ANTIMYCIN RESISTANT MUTANTS OF RHODOSPIRILLUM RUBRUM

1994 ◽  
Vol 22 (1) ◽  
pp. 59S-59S
Author(s):  
Joachim Uhrig ◽  
Christiane Jakobs ◽  
Christoph Majewski ◽  
Achim Trebst
Keyword(s):  
Rhodospirillum Rubrum ◽  
Resistant Mutants

Molecular characterization of two spontaneous antimycin A resistant mutants of Rhodospirillum rubrum

1994 ◽  
Vol 1187 (3) ◽  
pp. 347-353 ◽  
Author(s):  
Joachim F. Uhrig ◽  
Christiane U. Jakobs ◽  
Christoph Majewski ◽  
Achim Trebst
Keyword(s):  
Molecular Characterization ◽  
Rhodospirillum Rubrum ◽  
Antimycin A ◽  
Resistant Mutants

Characterization of sparfloxacin-resistant mutants of Staphylococcus aureus obtained in vitro

2001 ◽  
Vol 18 (2) ◽  
pp. 107-112 ◽  
Author(s):  
Joaquim Ruiz ◽  
Josep M. Sierra ◽  
M.Teresa Jiménez De Anta ◽  
Jordi Vila
Keyword(s):  
Staphylococcus Aureus ◽  
Resistant Mutants

Characterization of Enterococcus faecium mutants resistant to mundticin KS, a class IIa bacteriocin

Microbiology ◽  
2003 ◽  
Vol 149 (10) ◽  
pp. 2901-2908 ◽  
Author(s):  
Youko Sakayori ◽  
Mizuho Muramatsu ◽  
Satoshi Hanada ◽  
Yoichi Kamagata ◽  
Shinichi Kawamoto ◽  
...  
Keyword(s):  
Enterococcus Faecium ◽  
Antimicrobial Agents ◽  
Wild Type Strain ◽  
Unsaturated Fatty Acids ◽  
Class I ◽  
Wild Type ◽  
Food Preservatives ◽  
In The Wild ◽  
Resistant Mutants

The emergence and spread of mutants resistant to bacteriocins would threaten the safety of using bacteriocins as food preservatives. To determine the physiological characteristics of resistant mutants, mutants of Enterococcus faecium resistant to mundticin KS, a class IIa bacteriocin, were isolated. Two types of mutant were found that had different sensitivities to other antimicrobial agents such as nisin (class I) and kanamycin. Both mutants were resistant to mundticin KS even in the absence of Mg2+ ions. The composition of unsaturated fatty acids in the resistant mutants was significantly increased in the presence of mundticin KS. The composition of the phospholipids in the two resistant mutants also differed from those in the wild-type strain. The putative zwitterionic amino-containing phospholipid in both mutants significantly increased, whereas amounts of phosphatidylglycerol and cardiolipin decreased. These changes in membrane structure may influence resistance of enterococci to class IIa and class I bacteriocins.

Isolation and Characterization of Apoptosis-Resistant Mutants from a Radiosensitive Mouse Lymphoma Cell Line

1998 ◽  
Vol 149 (1) ◽  
pp. 41 ◽  
Author(s):  
Hidehiko Kawai ◽  
Yukika Kitamura ◽  
Osamu Nikaido ◽  
Masaaki Tatsuka ◽  
Hiroko Hama-Inaba ◽  
...  
Keyword(s):  
Cell Line ◽  
Lymphoma Cell ◽  
Lymphoma Cell Line ◽  
Isolation And Characterization ◽  
Resistant Mutants ◽  
Mouse Lymphoma

Characterization of the pet operon of Rhodospirillum rubrum

1992 ◽  
Vol 32 (2) ◽  
pp. 79-94 ◽  
Author(s):  
Savita Chankor ◽  
Carolyn Moomau ◽  
Saadettin G�ner ◽  
Joan Hsu ◽  
Mariko K. Tokito ◽  
...  
Keyword(s):  
Rhodospirillum Rubrum
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