Although 3-phenylserine, which is an antagonist of phenylalanine, has been known to be degraded by phenylserine aidolase,i) serine hydroxymethyltransferase,2) and L-amino acid oxidase,i) little attention has been paid to the metabolism of 3-phenylserine in microorganisms. We have found that D-threo-3-phenylserine was a better substrate for NADP'-dependent D-threonine dehydrogenase [EC 1.1.1.-] ...

conclusions the results showed that some patients were probably contaminated with nonbacterial and nonparasitic agents. all the parasitic isolates were resistant to most antibiotics. therefore determination of microbial isolates and antibiotic susceptibility is necessary before treatment procedures. results of 2376 patients, 466 (19.6%) were contaminated with pathogenic bacteria or protozoa.the...

In a systematic investigation for new antibiotics it was observed by one of us (A. K.) that the crude culture filtrate of Aspergillus luteo-virescens was found to be antagonistic to gram-positive and gram-negative bacteria. In the chemical studies conducted by two of us (W. K., R. K.) it was noted that an antibiotic substance crystallized out in large amounts from this crude culture upon standi...

Innate immunity is based on the recognition of pathogen-associated molecular patterns (PAMPs). Here, we show that elongation factor Tu (EF-Tu), the most abundant bacterial protein, acts as a PAMP in Arabidopsis thaliana and other Brassicaceae. EF-Tu is highly conserved in all bacteria and is known to be N-acetylated in Escherichia coli. Arabidopsis plants specifically recognize the N terminus o...

in western countries there is a growing incidence in obesity, inflammatory bowel disease (ibd) and colorectal cancer (crc), which places an increasingly important burden on the health care system. in the current decade, changes in intestinal microflora (i.e., dysbiosis) are likely the result of environment factors such as food, lifestyle, and medications which have been shown in obesity and ibd...

the chemical composition, in situ ruminal degradability coefficients of dry matter (dm), and nutrient digestibility in sheep were evaluated for corn silage (cs) treated (fresh weight basis) with different levels of a commercial bacterial inoculant (i) as follows: (1) untreated cs (control); (2) cs + i at half of the recommended level; (3) cs + i at the recommended level (3  1010 colony forming...

Plant-parasitic nematodes (PPNs) are an important damaging biotic agent for numerous crops around the world, causing serious losses directly and indirectly. Cultural chemical control strategies were mainly used to PPNs management. However, choice of nematicides is strictly limited in agrosystems due their toxicity, impact environment and, therefore, banning policies. The main lines action biolo...

Objective Coasting can reduce the ovarian hyperstimulation syndrome (OHSS) risk in ovulation induction cycles before intracytoplasmic sperm injection (ICSI). This study aimed to investigate the effect of gonadotropin-releasing hormone (GnRH) agonist and GnRH antagonist protocols to controlled ovarian hyperstimulation (COH) cycles with coasting on the parameters of ICSI cycles and the outcome. M...

A field investigation was conducted in a Fusarium-infected area to evaluate the effectiveness of silicate compounds with antagonist bacteria on morpho-physiological growth performance bananas. The roots banana plants were treated by drenching soil four different treatments: control (without any treatment), CBZ (Carbendazim fungicide alone), SS + BS (integration sodium Bacillus subtilis), and CB...