Intercellular transfer along the trichomes of the invasive terminal heterocyst forming cyanobacterium Cylindrospermopsis raciborskii CS-505

FEMS Microbiology Letters
Álvaro M PlominskyMónica Vásquez

Abstract

Cylindrospermopsis raciborskii CS-505 is an invasive freshwater filamentous cyanobacterium that when grown diazotrophically may develop trichomes of up to 100 vegetative cells while differentiating only two end heterocysts, the sole sites for their N2-fixation process. We examined the diazotrophic growth and intercellular transfer mechanisms in C. raciborskii CS-505. Subjecting cultures to a combined-nitrogen-free medium to elicit N2 fixation, the trichome length remained unaffected while growth rates decreased. The structures and proteins for intercellular communication showed that while a continuous periplasmic space was apparent along the trichomes, the putative septal junction sepJ gene is divided into two open reading frames and lacks several transmembrane domains unlike the situation in Anabaena, differentiating a 5-fold higher frequency of heterocysts. FRAP analyses also showed that the dyes calcein and 5-CFDA were taken up by heterocysts and vegetative cells, and that the transfer from heterocysts and 'terminal' vegetative cells showed considerably higher transfer rates than that from vegetative cells located in the middle of the trichomes. The data suggest that C. raciborskii CS-505 compensates its low-frequency hetero...Continue Reading

References

Oct 1, 1990·Experimental Cell Research·G KonatE L Hogan
Mar 1, 1971·Journal of Bacteriology·R V Smith, M C Evans
Oct 30, 1998·Science·H S Yoon, J W Golden
Sep 29, 2004·Toxicon : Official Journal of the International Society on Toxinology·Daniela CastroMónica Vásquez
Aug 29, 2006·Trends in Microbiology·Enrique FloresIris Maldener
Jul 25, 2007·Molecular Microbiology·Vicente MariscalEnrique Flores
Apr 5, 2008·The EMBO Journal·Conrad W MullineauxDavid G Adams
Jan 20, 2009·Bioinformatics·Andrew M WaterhouseGeoffrey J Barton
Nov 10, 2009·Proceedings of the National Academy of Sciences of the United States of America·Douglas D Risser, Sean M Callahan
Dec 8, 2009·Nature Reviews. Microbiology·Enrique Flores, Antonia Herrero
Jun 10, 2010·Advances in Experimental Medicine and Biology·Vicente Mariscal, Enrique Flores
Jul 14, 2010·Journal of Bacteriology·Shirley S Young-RobbinsSean M Callahan
Feb 9, 2011·Molecular Microbiology·Vicente MariscalEnrique Flores
Oct 13, 2011·Molecular Systems Biology·Fabian SieversDesmond G Higgins
May 15, 2013·Molecular Microbiology·Laura Corrales-GuerreroAntonia Herrero

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Citations

Jun 6, 2019·Scientific Reports·Sarah BoliusGuntram Weithoff
Feb 17, 2017·FEMS Microbiology Reviews·Antonia HerreroEnrique Flores
Oct 19, 2016·Journal of Phycology·Anusuya WillisMichele A Burford
Nov 1, 2020·Environmental Science and Pollution Research International·Fernanda Brêda-AlvesMathias Ahii Chia
Mar 7, 2021·Current Opinion in Microbiology·Ann-Katrin Kieninger, Iris Maldener

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