The symbiotic interaction between leguminous plants and their cognate rhizobia allows for the fixation of gaseous dinitrogen into bioavailable ammonia.

Bacteria have developed a large array of motility mechanisms to exploit available resources and environments. .

In this Review, Raina and colleagues argue that chemotaxis and motility are widespread but overlooked mechanisms that enable symbionts to find and/or colonize their hosts.

By bulk sequencing of 5′ monophosphorylated mRNA.

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. The perception of host-derived flavonoids is a key initial step for the signaling events that must occur preceding the formation of the nitrogen-fixing organ. .

. By bulk sequencing of 5′ monophosphorylated mRNA.


The microbiology department is celebrating the end of the school year in May by holding its traditional picnic on the green.

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The microbial chemotaxis could be either toward the nutrient source (positive chemotaxis) or away from the nutrient source (negative chemotaxis). Chemotaxis refers to the movement of an organism towards or away from a chemical.

<strong>Chemotaxis is based on the action of chemosensory pathways.

. Several stimuli can provoke the tactic movement of cells or organisms. This is important for bacteria to find food (for example, glucose) by swimming towards the highest concentration of food molecules, or to flee from poisons.

Chemotaxis (from chemo-+ taxis) is the movement of an organism or entity in response to a chemical stimulus. . . Bacteria respond to nutrients and other compounds via chemotaxis, but little is known of their responses to antibiotics. Phagocytosis is the primary method used by the body to remove free microorganisms in the blood and tissue fluids.


Signalling is initiated by the recognition of signals (or chemoeffectors) at chemoreceptors that form a ternary complex with the sensor kinase CheA and the adaptor protein CheW. One of the parts of identification of bacteria.

Plant-associated bacteria respond chemotactically to certain compounds released by plants.



If the movement is towards the chemical, it is positive chemotaxis.

Nature Reviews Microbiology - In this Review, Armitage and colleagues describe how some bacterial species, as typified byRhodobacter sphaeroides, have evolved to contain complex chemotaxis.