Full TGIF Record # 324947
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/143439
    Last checked: 01/25/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Errickson, William; Jaleel, Kashif; Huang, Bingru
Author Affiliation:Errickson: Presenting Author and Rutgers University; Jaleel and Huang: Rutgers University
Title:Colonization stability and efficacy of plant growth-promoting rhizobacteria in creeping bentgrass
Section:Turfgrass Physiology, Molecular Biology, Microbiome, and Genetics Poster (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 143439.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Inoculation with plant growth promoting rhizobacteria (PGPR) is a novel approach to improve growth and abiotic stress tolerance of cool season turfgrasses. Several endophytic PGPR colonize plant roots and produce ACC deaminase, which reduces the production of stress-induced ethylene, effectively reducing leaf senescence. However, for this symbiosis to have the intended effects on improving stress tolerance, the roots must first be colonized by the PGPR using successful and confirmed inoculation methods. Additionally, these methods must be confirmed under fields conditions, which can be challenging due to fluctuating temperatures and moisture, as well as the presence of native soil organisms. In this study, field plots of creeping bentgrass (cv. Pencross) were inoculated with two novel strains of Paraburkholderia aspalathi bacteria that have demonstrated growth promoting properties using a foliar spray and soil drench inoculation method. The inoculation treatments were applied to well-watered plots and plots that were subjected to 28 days of deficit irrigation (60% ET) followed by 14 days of rewatering (100% ET). To evaluate the colonization efficiency of bacteria, roots were sampled from the plots to examine the presence and quantity or density of the bacteria strains that were applied. The presence of bacterial inoculants in plant tissues was determined by bacterial isolation and quantitative real-time PCR (qPCR) that was designed based on signature sequences of the 16S rDNA in P. aspalathi. Both sequencing analysis and bacterial streaming from plant tissues were able to confirm that the soil drench method was the most effective inoculation method. Plots inoculated with P. aspalathi using the soil drench method also demonstrated the greatest improvements in drought stress tolerance and post-drought recovery, suggesting that inoculation with these novel strains of P. aspalathi using the soil drench method is an effective approach to improving drought stress tolerance and reducing water use in creeping bentgrass."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Errickson, W., K. Jaleel, and B. Huang. 2022. Colonization stability and efficacy of plant growth-promoting rhizobacteria in creeping bentgrass. Agron. Abr. p. 143439.
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    Last checked: 01/25/2023
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