Beneficial bacteria of agricultural importance.
Summary of "Beneficial bacteria of agricultural importance."
The rhizosphere is the soil-plant root interphase and in practice consists of the soil adhering to the root besides the loose soil surrounding it. Plant growth-promoting rhizobacteria (PGPR) are potential agents for the biological control of plant pathogens. A biocontrol strain should be able to protect the host plant from pathogens and fulfill the requirement for strong colonization. Numerous compounds that are toxic to pathogens, such as HCN, phenazines, pyrrolnitrin, and pyoluteorin as well as, other enzymes, antibiotics, metabolites and phytohormones are the means by which PGPR act, just as quorum sensing and chemotaxis which are vital for rhizosphere competence and colonization. The presence of root exudates has a pronounced effect on the rhizosphere where they serve as an energy source, promoting growth and influencing the root system for the rhizobacteria. In certain instances they have products that inhibit the growth of soil-borne pathogens to the advantage of the plant root. A major source of concern is reproducibility in the field due to the complex interaction between the plant (plant species), microbe and the environment (soil fertility and moisture, day length, light intensity, length of growing season, and temperature). This review listed most of the documented PGPR genera and discussed their exploitation.
Department of Biological Sciences, Faculty of Agriculture, Science and Technology, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa, firstname.lastname@example.org.
This article was published in the following journal.
Name: Biotechnology letters
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20635120
- DOI: http://dx.doi.org/10.1007/s10529-010-0347-0
The human body plays host to a vast array of bacteria, found in oral cavities, skin, gastrointestinal tract and the vagina. Some bacteria are harmful while others are beneficial to the host. Despite t...
Bacteria of the Clostridium genus are often described only as a biological threat and a foe of mankind. However, many of them have positive properties and thanks to them they may be used in many indus...
There is a growing interest in intestinal flora and human health and disease. The intestines of humans contain 100 trillion viable bacteria. These live bacteria, which make up 30% of the faecal mass,...
Bacteria used to ferment milk to obtain yogurt belong to thermophilic, bile-sensitive species of lactic acid bacteria, which are not ideally suited for survival into the human gut. However, assessing...
From six sampling sites in north-western Hungary 126 questing ticks of three species (Ixodes ricinus, Dermacentor reticulatus, Haemaphysalis concinna) were sampled. After inactivating the external bac...
The purpose of this study is to discover how often certain bacteria are found in the rectum at the time of a prostate needle biopsy to diagnose prostate cancer. Certain bacteria are of imp...
Scientist have begun to realize that many types of bacteria often live together as a complex community, and the investigators wish to apply that idea to the bacteria in the respiratory sys...
The aim of the study is to find out if allergic diseases can be prevented buy giving probiotic bacteria to pregnant mothers and their newborn infants
Some people who have taken azithromycin to prevent MAC (Mycobacterium avium Complex, a bacterial infection common in HIV-infected persons) have been found to carry antibiotic-resistant bac...
The purpose of this study is to find out if the bacteria present in the nose or sinuses of people with seasonal allergies changes during their allergy season. Another purpose of this stud...
Medical and Biotech [MESH] Definitions
The routing of water to open or closed areas where it is used for agricultural purposes.
Cultivated plants or agricultural produce such as grain, vegetables, or fruit. (From American Heritage Dictionary, 1982)
A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.
Thin, hairlike appendages, 1 to 20 microns in length and often occurring in large numbers, present on the cells of gram-negative bacteria, particularly Enterobacteriaceae and Neisseria. Unlike flagella, they do not possess motility, but being protein (pilin) in nature, they possess antigenic and hemagglutinating properties. They are of medical importance because some fimbriae mediate the attachment of bacteria to cells via adhesins (ADHESINS, BACTERIAL). Bacterial fimbriae refer to common pili, to be distinguished from the preferred use of "pili", which is confined to sex pili (PILI, SEX).
An agricultural fungicide and seed treatment agent.