Search results
Results from the WOW.Com Content Network
Certain bacteria employ mobile genetic elements and horizontal gene transfer. Therefore, strategies to combat certain bacterial infections by targeting these specific virulence factors and mobile genetic elements have been proposed. [8] Bacteria use quorum sensing to synchronise release of the molecules. These are all proximate causes of ...
Phytotoxic substances may result from human activity, as with herbicides, or they may be produced by plants, by microorganisms, or by naturally occurring chemical reactions. The term is also used to describe toxic chemicals produced by plants themselves, which function as defensive agents against their predators.
Foodborne illness (also known as foodborne disease and food poisoning) [1] is any illness resulting from the contamination of food by pathogenic bacteria, viruses, or parasites, [2] as well as prions (the agents of mad cow disease), and toxins such as aflatoxins in peanuts, poisonous mushrooms, and various species of beans that have not been boiled for at least 10 minutes.
Other microbes are decomposers, with the ability to recycle nutrients from other organisms' waste products. These microbes play a critical role in biogeochemical cycles. [31] The nitrogen cycle, the phosphorus cycle, the sulphur cycle, and the carbon cycle all depend on microorganisms in one way or
The toxins, named mycotoxins, deter other organisms from consuming the food the fungi colonise. As with bacterial toxins, there is a wide array of fungal toxins. Arguably one of the more dangerous mycotoxins is aflatoxin produced by certain species of the genus Aspergillus (notably A. flavus). If ingested repeatedly, this toxin can cause ...
Structure of a lipopolysaccharide (LPS) Lipopolysaccharide, now more commonly known as endotoxin, [1] is a collective term for components of the outermost membrane of the cell envelope of gram-negative bacteria, such as E. coli and Salmonella [2] with a common structural architecture.
Plants live in association with diverse microbial consortia. These microbes, referred to as the plant's microbiota, live both inside (the endosphere) and outside (the episphere) of plant tissues, and play important roles in the ecology and physiology of plants. [5] "The core plant microbiome is thought to comprise keystone microbial taxa that ...
All saprotrophic bacteria are unicellular prokaryotes, and reproduce asexually through binary fission. [2] Variation in the turnover times (the rate at which a nutrient is depleted and replaced in a particular nutrient pool) of the bacteria may be due in part to variation in environmental factors including temperature, soil moisture, soil pH, substrate type and concentration, plant genotype ...