Effect of chlortetracycline on vitamin B6 and amino acid decarboxylase in bacteria from the alimentary tract of the chick.

نویسنده

  • B ALEXANDER
چکیده

Melnykowycz and Johansson (1955) have shown that chlortetracycline suppresses amino acid decarboxylation by intestinal microorganisms in the rat, formation of lysine decarboxylase in Escherichia coli, and decarboxylation of tyrosine in Streptococcus faecalis R. These workers postulate that antibiotics reduce enterotoxemia and improve growth by inhibiting amine formation in the intestine. Since vitamin B6 is the cofactor of the amino acid decarboxylase enzymes, the present work was undertaken to determine the effect of chlortetracycline (CTC) on vitamin B6 utilization and amino acid decarboxylation in chicks.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Identification and molecular cloning of glutamate decarboxylase gene from Lactobacillus casei

Gamma-amino butyric acid (GABA) possesses several physiological functions such as neurotransmission, induction of hypotension, diuretic and tranquilizer effects. Production of GABA-enriched products by lactic acid bacteria has been a focus of different researches in recent years because of their safety and health-promoting specifities. In this study, glutamate decarboxylase (gad) gene of a loca...

متن کامل

Effect of retinoic acid on neural tube development in chick embryo

retinoic acid is one of the derivatives of vitamin A.it is used for treatment of dermatitis,but it has different teratogenic effects on developing organs depending on the different stages of embryonic life.neural  tube is made of two different parts:primary neural tube originated from embryo germinal layer and and secondary neural tube originated from tail bud.the persent study was designed to ...

متن کامل

Effect of D-penicillamine on Vitamin B6 Activation of Aspartate Aminotransferase in Synaptosomes of the Developing Brain

The activity of aspartate aminotransferase a vitamin B6 containing enzyme was measured in the laysed synaptosomes prepared from rat brain, during development. Administration of vitamin B6 increased the enzyme activity throughout development. The stimulating effect of this vitamin was prevented when the animals were previously treated with D-penicillamine. However, penicillamine alone had n...

متن کامل

Optimization of Culture Conditions for Keratinase Production in Streptomyces Sp. JRS19 for Chick Feather Wastes Degradation

The aim of this study was to find the optimal conditions of a newly isolated Streptomyces strain JRS 19. Screening for keratinase producing bacteria and their keratinase production were investigated. The keratinase produced by the isolate was purified by chromatographic techniques and the optimum pH maintained was 7.0 and maintained at different temperatures Viz., 20ºC, 25ºC, 30ºC, 35ºC and 40º...

متن کامل

Amine formation and metabolic activity of microorganisms in the ileum of young swine fed chlortetracycline.

The favorable effect of low levels of chlortetracycline (Aureomycin) in promoting an increased rate of gain in young swine is widely accepted as a contribution to our agricultural economy (Jukes, 1955). In young swine farrowed by hysterectomy and reared in isolation, with relative freedom from the more common infections to which baby pigs are exposed, significant increases in rate of growth occ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Applied microbiology

دوره 8  شماره 

صفحات  -

تاریخ انتشار 1960