15
Mag
15

Optimal Census by Quorum Sensing

See on Scoop.itBounded Rationality and Beyond

Author Summary Bacteria regulate gene expression in response to changes in cell density in a process called quorum sensing. To synchronize their gene-expression programs, these bacteria need to glean as much information as possible about their cell density. Our study is the first to physically model the flow of information in a quorum-sensing microbial community, wherein the internal regulator of the individuals response tracks the external cell density via an endogenously generated shared signal. Combining information theory and Lagrangian formalism, we find that quorum-sensing systems can improve their information capabilities by tuning circuit feedbacks. Our analysis suggests that achieving information benefit via feedback requires dedicated systems to control gene expression noise, such as sRNA-based regulation.

See on journals.plos.org



Time is real? I think not

maggio: 2015
L M M G V S D
« Apr   Giu »
 123
45678910
11121314151617
18192021222324
25262728293031

Commenti recenti

Inserisci il tuo indirizzo e-mail per iscriverti a questo blog e ricevere notifiche di nuovi messaggi per e-mail.

Segui assieme ad altri 833 follower

Latest Tweets

Alessandro Cerboni


%d blogger cliccano Mi Piace per questo: