Buikema WJ, Haselkorn R: Isolation and complementation of nitrogen fixation mutants of the cyanobacterium Anabaena sp. strain PCC 7120. J Bacteriol. 1991, 173 (6): 1879-1885. Borthakur PB, Orozco CC, Young-Robbins SS, Haselkorn R, Callahan SM: Inactivation of patS and hetN causes lethal levels of heterocyst differentiation in the filamentous cyanobacterium Anabaena sp. PCC 7120. Mol Microbiol. 2005, 57 (1): 111-123. 10.1111/j.1365-2958.2005.04678.x.

Khudyakov IY, Golden JW: Different functions of HetR, a master regulator of heterocyst differentiation in Anabaena sp. PCC 7120, can be separated by mutation. Proc Natl Acad Sci U S A. 2004, 101 (45): 16040-16045. 10.1073/pnas.0405572101.Fig 1. Main components and interactions involved in the reaction to combined nitrogen deprivation in cyanobacteria.

He said that IGEM 2023, which is held from Oct 4 to Oct 6, and themed “Race Towards Net Zero: Leadership for Climate Action”, could play a decisive leadership role in accelerating and delivering the region’s net zero and energy transition agenda. Herrero, A., Picossi, S. & Flores, E. Gene expression during heterocyst differentiation. Adv. Bot. Res., 65, 281–329 (2013).

Acknowledgments

Higa KC, Rajagopalan R, Risser DD, Rivers OS, Tom SK, Videau P, et al. (2012) The RGSGR amino acid motif of the intercellular signalling protein, HetN, is required for patterning of heterocysts in Anabaena sp. strain PCC 7120. Mol microbiol 83: 682–693. pmid:22220907 Feldmann, E. A. et al. Differential binding between PatS C-terminal peptide fragments and HetR from Anabaena sp. PCC 7120. Biochemistry 51, 2436–42 (2012). Hanaoka M, Tanaka K: Dynamics of RpaB-promoter interaction during high light stress, revealed by chromatin immunoprecipitation (ChIP) analysis in Synechococcus elongatus PCC 7942. Plant J. 2008, 56 (2): 327-335. 10.1111/j.1365-313X.2008.03600.x. The impact statement doesn't do the work justice, as it emphasizes details. The work describes elements of a Turing-type reaction-diffusion system to control pattern formation in differentiating cyanobacterial filaments. Mitchison GJ, Wilcox M, Smith RJ (1976) Measurement of an inhibitory zone. Science 191: 866–868. pmid:814620