Revealing strategies of quorum sensing in Azospirillum brasilense strains Ab-V5 and Ab-V6
作者： Josiane Fukami , Julia Laura Fernandes Abrantes , Pablo del Cerro , Marco Antonio Nogueira , Francisco Javier Ollero
DOI: 10.1007/S00203-017-1422-X
关键词:
摘要: Azospirillum brasilense is an important plant-growth promoting bacterium (PGPB) that requires several critical steps for root colonization, including biofilm and exopolysaccharide (EPS) synthesis cell motility. In bacteria these mechanisms are mediated by quorum sensing (QS) systems regulate the expression of specific genes autoinducers N-acyl-homoserine lactones (AHLs). We investigated QS in strains Ab-V5 Ab-V6 A. brasilense, which broadly used commercial inoculants Brazil. Neither carries a luxI gene, but there luxR solos might perceive AHL molecules. By adding external AHLs we verified EPS production motility (swimming swarming) were regulated via Ab-V5, not Ab-V6. Differences observed only between strains, also specificity LuxR-type receptors to However, was outstanding indole acetic acid (IAA) this molecule mimic signals. applied quenching (QQ) strategy, obtaining transconjugants carrying plasmid with acyl-homoserine lactonase. When maize (Zea mays L.) inoculated wild-type transconjugant plant growth decreased Ab-V5-confirming importance AHL-mediated system-but did affect promotion
springer.com
sci-hub.se 参考文章(63)
Yoav Bashan, Luz E. de-Bashan, Chapter Two – How the Plant Growth-Promoting Bacterium Azospirillum Promotes Plant Growth—A Critical Assessment Advances in Agronomy. ,vol. 108, pp. 77- 136 ,(2010) , 10.1016/S0065-2113(10)08002-8
Xianzhen Li, Guocheng Du, Jian Chen, Use of enzymatic biodegradation for protection of plant against microbial disease. Current topics in biotechnology, Volume 4. pp. 1- 12 ,(2008)
Enrique A. Rodríguez Cáceres, Improved Medium for Isolation of Azospirillum spp Applied and Environmental Microbiology. ,vol. 44, pp. 990- 991 ,(1982) , 10.1128/AEM.44.4.990-991.1982
Stijn Spaepen, Jos Vanderleyden, Auxin Signaling inAzospirillum brasilense: A Proteome Analysis Biological Nitrogen Fixation. pp. 937- 940 ,(2015) , 10.1002/9781119053095.CH91
G. Kaschuk, M. Hungria, P. A. Leffelaar, K. E. Giller, T. W. Kuyper, Differences in photosynthetic behaviour and leaf senescence of soybean (Glycine max [L.] Merrill) dependent on N2 fixation or nitrate supply. Plant Biology. ,vol. 12, pp. 60- 69 ,(2010) , 10.1111/J.1438-8677.2009.00211.X
Pradeep K. Singh, Amy L. Schaefer, Matthew R. Parsek, Thomas O. Moninger, Michael J. Welsh, E. P. Greenberg, Quorum-sensing signals indicate that cystic fibrosis lungs are infected with bacterial biofilms Nature. ,vol. 407, pp. 762- 764 ,(2000) , 10.1038/35037627
D. R. Hoagland, D. I. Arnon, The Water-Culture Method for Growing Plants Without Soil ,(2018)
Mickaël Boyer, Florence Wisniewski-Dyé, Cell-cell signalling in bacteria: not simply a matter of quorum. FEMS Microbiology Ecology. ,vol. 70, pp. 1- 19 ,(2009) , 10.1111/J.1574-6941.2009.00745.X
Ludovic Vial, Caroline Cuny, Katia Gluchoff-Fiasson, Gilles Comte, Phil M. Oger, Denis Faure, Yves Dessaux, René Bally, Florence Wisniewski-Dyé, N‐acyl‐homoserine lactone‐mediated quorum‐sensing in Azospirillum: an exception rather than a rule FEMS Microbiology Ecology. ,vol. 58, pp. 155- 168 ,(2006) , 10.1111/J.1574-6941.2006.00153.X
Kathrin Riedel, Anette Steidle, Leo Eberl, Hong Wu, Otto Geisenberger, Søren Molin, Birgit Huber, Morten Hentzer, Niels Høiby, Michael Givskov, N-acylhomoserine-lactone-mediated communication between Pseudomonas aeruginosa and Burkholderia cepacia in mixed biofilms. Microbiology. ,vol. 147, pp. 3249- 3262 ,(2001) , 10.1099/00221287-147-12-3249