In the last two decades, numerous oligopeptides have been isolated from sporogenic bacteria and fungi. These peptides are almost invariably characterized by the presence of macrocyclic structures, linkages other than cr-peptide bonds, amino acids that do not occur in protein, n-amino acids, and nonamino acid moieties. The formation of some of these peptides by microorganisms has been studied in...

In the last two decades, numerous oligopeptides have been isolated from sporogenic bacteria and fungi. These peptides are almost invariably characterized by the presence of macrocyclic structures, linkages other than cr-peptide bonds, amino acids that do not occur in protein, n-amino acids, and nonamino acid moieties. The formation of some of these peptides by microorganisms has been studied in...

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...

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...

Ligniera junci, a plasmodiophorid parasite of Juncus spp. was found at three locations in Tyrol. The morphologically similar plasmodiophorid of Poaceae Polymyxa graminis was found to co-occur at two of these locations. This is the first record of these species in Austria. Colour photographs of resting spores of Ligniera junci in roots of Juncus triglumis and Polymyxa graminis in roots of Poacea...

The gene for beta-amylase was isolated from BacUlus polymyxa by molecular cloning in B. subtils. B. subtlis cells containing this gene express and secrete an amylase which resembles the B. polymyxa beta-amylase and barley beta-amylase in terms of the products it generates during carbohydrate hydrolysis. Starch hydrolysis with this beta-amylase produces maltose, not glucose, whereas maltotriose ...