Role of plant compounds in the modulation of the conjugative transfer of pRet42a
One of the most studied mechanisms involved in bacterial evolution and diversification is conjugative transfer (CT) of plasmids. Plasmids able to transfer by CT often encode beneficial traits for bacterial survival under specific environmental conditions. <i>Rhizobium etli</i> CFN42 is a...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2020
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/107707 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7449395&blobtype=pdf https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0238218 |
| Aporte de: |
| id |
I19-R120-10915-107707 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Biología Proteus vulgaris regulator genes gene regulation green fluorescent protein maize symbiosis beans plasmids |
| spellingShingle |
Ciencias Exactas Biología Proteus vulgaris regulator genes gene regulation green fluorescent protein maize symbiosis beans plasmids Bañuelos Vazquez, Luis Alfredo Castellani, Lucas Gabriel Luchetti, Abril Romero, David Torres Tejerizo, Gonzalo Arturo Brom, Susana Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| topic_facet |
Ciencias Exactas Biología Proteus vulgaris regulator genes gene regulation green fluorescent protein maize symbiosis beans plasmids |
| description |
One of the most studied mechanisms involved in bacterial evolution and diversification is conjugative transfer (CT) of plasmids. Plasmids able to transfer by CT often encode beneficial traits for bacterial survival under specific environmental conditions. <i>Rhizobium etli</i> CFN42 is a Gram-negative bacterium of agricultural relevance due to its symbiotic association with <i>Phaseolus vulgaris</i> through the formation of Nitrogen-fixing nodules. The genome of <i>R. etli</i> CFN42 consists of one chromosome and six large plasmids. Among these, pRet42a has been identified as a conjugative plasmid. The expression of the transfer genes is regulated by a <i>quorum sensing</i> (QS) system that includes a <i>traI</i> gene, which encodes an acyl-homoserine lactone (AHL) synthase and two transcriptional regulators (TraR and CinR). Recently, we have shown that pRet42a can perform CT on the root surface and inside nodules. The aim of this work was to determine the role of plant-related compounds in the CT of pRet42a. We found that bean root exudates or root and nodule extracts induce the CT of pRet42a in the plant rhizosphere. One possibility is that these compounds are used as nutrients, allowing the bacteria to increase their growth rate and reach the population density leading to the activation of the QS system in a shorter time. We tested if <i>P. vulgaris</i> compounds could substitute the bacterial AHL synthesized by TraI, to activate the conjugation machinery. The results showed that the transfer of pRet42a in the presence of the plant is dependent on the bacterial QS system, which cannot be substituted by plant compounds. Additionally, individual compounds of the plant exudates were evaluated; among these, some increased and others decreased the CT. With these results, we suggest that the plant could participate at different levels to modulate the CT, and that some compounds could be activating genes in the conjugation machinery. |
| format |
Articulo Articulo |
| author |
Bañuelos Vazquez, Luis Alfredo Castellani, Lucas Gabriel Luchetti, Abril Romero, David Torres Tejerizo, Gonzalo Arturo Brom, Susana |
| author_facet |
Bañuelos Vazquez, Luis Alfredo Castellani, Lucas Gabriel Luchetti, Abril Romero, David Torres Tejerizo, Gonzalo Arturo Brom, Susana |
| author_sort |
Bañuelos Vazquez, Luis Alfredo |
| title |
Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| title_short |
Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| title_full |
Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| title_fullStr |
Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| title_full_unstemmed |
Role of plant compounds in the modulation of the conjugative transfer of pRet42a |
| title_sort |
role of plant compounds in the modulation of the conjugative transfer of pret42a |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/107707 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC7449395&blobtype=pdf https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0238218 |
| work_keys_str_mv |
AT banuelosvazquezluisalfredo roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a AT castellanilucasgabriel roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a AT luchettiabril roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a AT romerodavid roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a AT torrestejerizogonzaloarturo roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a AT bromsusana roleofplantcompoundsinthemodulationoftheconjugativetransferofpret42a |
| bdutipo_str |
Repositorios |
| _version_ |
1764820443530788865 |