alarmone

a·lar·mone

(ă-lar'mōn),
A biochemical with a synthesis that increases under certain stress conditions (for example, a nutritional deficiency affecting certain enzymes).
[alarm + -mone]

alarmone

A intracellular signalling molecule—e.g., (p)ppGpp—which is synthesised in increased amounts by bacteria subjected to environmental insults (e.g., reduction of amino acids in the culture medium, which alters the “bug’s” metabolism).
References in periodicals archive ?
Raising the alarmone: within-host evolution of antibiotic-tolerant Enterococcus faecium.
CSPs can induce alarmones which are intracellular signal molecules and are produced due to harsh environmental factors and can convey sophisticated messages.