PAENIBACILLUS POLYMYXA КВ — PRODUCER OF BIOLOGICALLY ACTIVE SUBSTANCES
نویسندگان
چکیده
Objective. To investigate the ability of Paenibacillus polymyxa KB to produce biologically active substances that stimulate growth and development plants. Methods. Qualitative quantitative determination auxins, abscisic acid (ABA) cytokinins in culture fluid (CF) P. was carried out by high-performance liquid chromatography (HPLC) using Agilent 1200 chromatograph; gibberellins were measured (HPLC/MS) chromatograph (Agilent Technologies, USA) G1956B mass spectral detector. The content vitamins determined Waters with a tqs-micro mass-selective amino acids CF studied ion exchange on Sycam analyser. synthesize exopolysaccharides enzymes classical microbiological biochemical research methods. Antifungal properties bacterium dual method. Statistical calculations analysis-of-variance Results. synthesises phytohormonal compounds: auxins — up 81.15 μg/g dry biomass, 9.84 μg/g; gibberellic (GA3 within 2.48 GA4 1.96 biomass); (zeatin 16.42 μg/g, kinetin 6.78 isopentenyl-adenine 9.03 biomass), as well vitamins: thiamine (B1) 0.93 mg/dm3 CF, riboflavin (B2) 0.48 mg/dm3, pyridoxine (B6) 0.27 folic (B9) 0.18 CF. shows phosphatase, amylolytic, proteolytic, pectolytic activity, produces acids: histidine 300.4 alanine 236.3 proline 164.2 valine 157.8 isoleucine 148.4 threonine 126.2 cystine 124.0 others. synthesizes amylopectin levan. antagonistic activity against phytopathogenic micromycetes from genera Fusarium, Alternaria, Nigrospora pathogens agricultural crops. Conclusion. significant amount physiologically can play an important role processes plant organogenesis.
منابع مشابه
Draft Genome Sequence of Paenibacillus polymyxa KF-1, an Excellent Producer of Microbicides
We report here the draft genome sequence of Paenibacillus polymyxa KF-1, which exhibits excellent antimicrobial activity. It encodes the synthase of bacitracin, kalimantacin, bacillomycin, iturin, fusaricidin, tridecaptin, and pelgipeptin and biosynthetic pathways of antiviral curldan and levan polysaccharides. Also, a novel prophage is involved in this genome that contains endolysin-encoding g...
متن کاملInsight into metabolic pathways of the potential biofuel producer, Paenibacillus polymyxa ICGEB2008
BACKGROUND Paenibacillus polymyxa is a facultative anaerobe known for production of hydrolytic enzymes and various important biofuel molecules. Despite its wide industrial use and the availability of its genome sequence, very little is known about metabolic pathways operative in the Paenibacillus system. Here, we report metabolic insights of an insect gut symbiont, Paenibacillus polymyxa ICGEB2...
متن کاملCytokinin production by Paenibacillus polymyxa
The production of hormones has been suggested to be one of the mechanisms by which plant growth-promoting rhizobacteria (PGPR) stimulate plant growth. To evaluate whether the free-living soil bacterium, Paenibacillus polymyxa, releases the hormone group cytokinins and, if so, their identity, the content of cytokinins in the growth media, before and after cultivation of this bacterium, was deter...
متن کاملInfluence of Natural Sources of Biologically Active Substances on Livestock and Poultry Reproduction
Synthetic hormones and bioactive substances (vitamins, pigments and isoflavons) which have been used in the feed industry are accumulated in milk, meat and eggs. It is suspected that these are responsible for a number of side-effects such as carcinogenesis, liver and kidney damage, allergies in consumers. Furthermore the synthetic hormones, vitamins, pigments are less active than those extracte...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sìl?s?kogospodars?ka mìkrobìologìâ
سال: 2022
ISSN: ['1997-3004']
DOI: https://doi.org/10.35868/1997-3004.35.42-57