A Potential Application of Pseudomonas psychrotolerans IALR632 for Lettuce Growth Promotion in Hydroponics
| dc.contributor.author | Mei, Chuansheng | en |
| dc.contributor.author | Zhou, Dongfang | en |
| dc.contributor.author | Chretien, Robert L. | en |
| dc.contributor.author | Turner, Amy | en |
| dc.contributor.author | Hou, Guichuan | en |
| dc.contributor.author | Evans, Michael R. | en |
| dc.contributor.author | Lowman, Scott | en |
| dc.date.accessioned | 2023-02-10T14:45:41Z | en |
| dc.date.available | 2023-02-10T14:45:41Z | en |
| dc.date.issued | 2023-02-02 | en |
| dc.date.updated | 2023-02-10T14:28:45Z | en |
| dc.description.abstract | Controlled environment agriculture hydroponic systems grow plants year-round without restriction from outside environmental conditions. In order to further improve crop yield, plant growth-promoting bacteria were tested on hydroponically grown lettuce (<i>Lactuca sativa</i>) plants. From our bacterial endophyte library, we found one bacterium, <i>Pseudomonas psychrotolerans</i> IALR632, that is promising in promoting lettuce growth in multiple hydroponic systems. When Green Oakleaf lettuce seeds were inoculated with IALR632 during germination, IALR632 significantly increased lateral root development by 164%. When germinated seedlings were inoculated with IALR632 and then transplanted to different hydroponic systems, shoot and root fresh weights of Green Oakleaf increased by 55.3% and 17.2% in a nutrient film technique (NFT) system in the greenhouse, 13.5% and 13.8% in an indoor vertical NFT system, and 15.3% and 13.6% in a deep water cultivation (DWC) system, respectively. IALR632 also significantly increased shoot fresh weights of Rex by 33.9%, Red Oakleaf by 21.0%, Red Sweet Crisp by 15.2%, and Nancy by 29.9%, as well as Red Rosie by 8.6% (no significant difference). Inoculation of IALR632-GFP and subsequent analysis by confocal microscopy demonstrated the endophytic nature and translocation from roots to shoots. The results indicate that <i>P. psychrotolerans</i> IALR632 has a potential application in hydroponically grown lettuce plants. | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Mei, C.; Zhou, D.; Chretien, R.L.; Turner, A.; Hou, G.; Evans, M.R.; Lowman, S. A Potential Application of Pseudomonas psychrotolerans IALR632 for Lettuce Growth Promotion in Hydroponics. Microorganisms 2023, 11, 376. | en |
| dc.identifier.doi | https://doi.org/10.3390/microorganisms11020376 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/113781 | en |
| dc.language.iso | en | en |
| dc.publisher | MDPI | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject | plant growth-promoting bacteria (PGPB) | en |
| dc.subject | bacterial endophytes | en |
| dc.subject | Lactuca sativa | en |
| dc.subject | nutrient film technique | en |
| dc.subject | Green Oakleaf | en |
| dc.title | A Potential Application of Pseudomonas psychrotolerans IALR632 for Lettuce Growth Promotion in Hydroponics | en |
| dc.title.serial | Microorganisms | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |