Abstract Background Several chemical bactericides were applied for controlling soft rot bacteria, Pectobacterium carotovorum subsp. , which causes the destructive disease to many economically important vegetables, but because of their toxic hazards on human and environment became limit. The biocontrol was control plant pathogens. Therefore, this work is aimed study antagonistic activity bacteri...

Fluorescent pseudomonads protecting plant roots from phytopathogens by producing 2,4-diacetylphloroglucinol (DAPG) are considered to form a monophyletic lineage comprised of DAPG+Pseudomonas strains in the "P. corrugata" and "P. protegens" subgroups of the "Pseudomonas fluorescens" group. However, DAPG production ability has not been investigated for many species of these two subgroups, and whe...

The structure of the pyoverdin siderophore of Pseudomonas fluorescens 18.1 was elucidated by spectroscopic methods and chemical degradation. By cross feeding studies structurally closely related pyoverdins containing a C-terminal cyclopeptidic substructure were tested regarding the mutual recognition by the producing strains. Partial recognition of foreign pyoverdins was observed.

Phytoncides are organic compounds, produced by plants in order to protect them from different microorganisms. Over the years a number of plants and their extracts are subjected to investigation of their antibacterial properties. The increase in the number of side reactions caused by antibiotics, and other drugs used in medical practice, turned back the attention of many scientists to studies of...

Meloidogyne incognita can be effectively managed through biological control agents. The present study on the bio-intensive management of M. blackgram with bio-agents, viz. Bacillus marisflavi, altitudinis, subtilis, Trichoderma viride, Verticillium lecanii and Pseudomonas fluorescens as soil application was carried out under net house conditions at Department Nematology, Assam Agricultural Univ...

The efficacy of single and combined application Trichoderma harzianum Pseudomonas fluorescens (CHA0) in the controlling Meloidogyne javanica on tomato plants was evaluated under green house conditions. Seeds susceptible cv. Early-Urbana were sown clean plastic pots containing 1.5 kg steam sterilized soil. Four weeks after planting, soil each pot infested with a suspension 20 ml/kg T. (10 6 spor...

One of the primary constraints in upland rice cultivation is disease blast (Magnaporthe oryzae), which can provide reduction up to 100% grain yield The use silicon with beneficial microorganisms (bioagents) be an alternative for control this and increase productivity grain. objective work was study effect rates bioagents suppression rice. methodology used tests carried out field conditions, two...

Of 200 water isolates screened, five strains of Pseudomonas fluorescens and one strain of Pseudomonas aeruginosa were cyanogenic. Maximum cyanogenesis by two strains of P. fluorescens in a defined growth medium occurred at 25 to 30 degrees C over a pH range of 6.6 to 8.9. Cyanide production per cell was optimum at 300 mM phosphate. A linear relationship was observed between cyanogenesis and the...