The heterocyst-specific NsiR1 small RNA is an early marker of cell differentiation in cyanobacterial filaments.

ABSTRACT:

Unlabelled

Differentiation of single cells along filaments of cyanobacteria constitutes one of the simplest developmental patterns in nature. In response to nitrogen deficiency, certain cells located in a semiregular pattern along filaments differentiate into specialized nitrogen-fixing cells called heterocysts. The process involves the sequential activation of many genes whose expression takes place, either exclusively or at least more strongly, in those cells undergoing differentiation. In the model cyanobacterium Anabaena (Nostoc) sp. strain PCC 7120, increased transcription of hetR, considered the earliest detectable heterocyst-specific transcript, has been reported to occur in pairs or even in clusters of cells, thus making it difficult to identify prospective heterocysts duri

SUBMITTER: Muro-Pastor AM 

PROVIDER: S-EPMC4030482 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature