Role of Quorum Sensing Signals of Rhizobacteria for Plant Growth Promotion

2017 ◽  
pp. 205-217 ◽  
Author(s):  
Anton Hartmann ◽  
Michael Rothballer
Keyword(s):  
Quorum Sensing ◽  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Quorum Sensing Signals

Role of bacterial pyrroloquinoline quinone in phosphate solubilizing ability and in plant growth promotion on strain Serratia sp. S119

Symbiosis ◽  
2016 ◽  
Vol 72 (1) ◽  
pp. 31-43 ◽  
Author(s):  
Liliana Mercedes Ludueña ◽  
María Soledad Anzuay ◽  
Jorge Guillermo Angelini ◽  
Germán Barros ◽  
María Flavia Luna ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Pyrroloquinoline Quinone ◽  
Phosphate Solubilizing

scholarly journals Quorum Sensing System Affects the Plant Growth Promotion Traits of Serratia fonticola GS2

2020 ◽  
Vol 11 ◽  
Author(s):  
Byung Kwon Jung ◽  
Jerald Conrad Ibal ◽  
Huy Quang Pham ◽  
Min-Chul Kim ◽  
Gun-Seok Park ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Plant Growth ◽  
Plant Growth Promotion ◽  
Biofilm Formation ◽  
Growth Promotion ◽  
Acc Deaminase ◽  
Deletion Mutants ◽  
Phenotypic Data ◽  
Collective Behaviors ◽  
Pgp Activities

Quorum sensing (QS) enables bacteria to organize gene expression programs, thereby coordinating collective behaviors. It involves the production, release, and population-wide detection of extracellular signaling molecules. The cellular processes regulated by QS in bacteria are diverse and may be used in mutualistic coordination or in response to changing environmental conditions. Here, we focused on the influence of the QS-dependent genes of our model bacterial strain Serratia fonticola GS2 on potential plant growth promoting (PGP) activities including indole-3-acetic acid (IAA) production, 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity, and biofilm formation. Based on genomic and phenotypic experimental data we identified and investigated the function of QS genes in the genome of the model strain. Our gene deletion study confirmed the biological functionality of the QS auto-inducer (gloI) and receptor (gloR) on potential PGP activities of GS2. A transcriptomic approach was also undertaken to understand the role of QS genes in regulation of genes primarily involved in PGP activities (IAA, ACC deaminase activity, and biofilm formation). Both transcriptomic and phenotypic data revealed that the QS-deletion mutants had considerably less PGP activities, as compared to the wild type. In addition, in vivo plant experiments showed that plants treated with GS2 had significantly higher growth rates than plants treated with the QS-deletion mutants. Overall, our results showed how QS-dependent genes regulate the potential PGP activities of GS2. This information may be helpful in understanding the relationship between QS-dependent genes and the PGP activity of bacteria, which aid in the production of practical bio-fertilizers for plant growth promotion.

Role of novel bacterial Raoultella sp. strain X13 in plant growth promotion and cadmium bioremediation in soil

2019 ◽  
Vol 103 (9) ◽  
pp. 3887-3897 ◽  
Author(s):  
Shaozu Xu ◽  
Yonghui Xing ◽  
Song Liu ◽  
Qiaoyun Huang ◽  
Wenli Chen
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion

Role of Cytokinins in Plant Growth Promotion by Rhizosphere Bacteria

2005 ◽  
pp. 173-195 ◽  
Author(s):  
Ines E. de Garcia Salamone ◽  
Russell K. Hynes ◽  
Louise M. Nelson
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Rhizosphere Bacteria

Ochrobactrum sp. Pv2Z2 exhibits multiple traits of plant growth promotion, biodegradation and N-acyl-homoserine-lactone quorum sensing

2014 ◽  
Vol 64 (4) ◽  
pp. 1797-1806 ◽  
Author(s):  
Asma Imran ◽  
Marryam Jumma Abdulla Saadalla ◽  
Sami-Ullah Khan ◽  
Muhammad Sajjad Mirza ◽  
Kauser Abdulla Malik ◽  
...  
Keyword(s):  
Quorum Sensing ◽  
Plant Growth ◽  
Plant Growth Promotion ◽  
Growth Promotion ◽  
Homoserine Lactone ◽  
Acyl Homoserine Lactone ◽  
Multiple Traits
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