Full TGIF Record # 333397
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Web URL(s):https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150292
    Last checked: 12/01/2023
Publication Type:
Content Type:Abstract or Summary only
Author(s):Errickson, William; Huang, Bingru
Author Affiliation:Errickson: Presenting Author and Rutgers University, Freehold, NJ; Huang: Rutgers University, New Brunswick, NJ
Title:Molecular regulation of creeping bentgrass tolerance to drought stress by plant growth promoting rhizobacteria
Section:Turfgrass breeding, genetics, molecular biology, microbiome oral I (includes student competition)
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C05 turfgrass science
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Meeting Info.:St. Louis, Missouri: October 29-November 1, 2023
Source:ASA, CSSA, SSSA International Annual Meeting. 2023, p. 150292.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Drought stress has negative impacts on the growth and quality of cool season grasses such as creeping bentgrass (Agrostis stolonifera). The use of plant growth promoting rhizobacteria (PGPR) that produce the ACC deaminase (ACCd) enzyme to reduce stress-induced ethylene in plants has emerged as a novel and sustainable approach to improving drought stress tolerance and post-stress recovery upon re-watering. This study explored a transcriptome analysis of creeping bentgrass plants inoculated with a novel strain of ACCd-producing Paraburkholderia bacteria under three different drought stress regimes (well-watered, 35 days of drought stress, and 15 days of post-drought recovery) in order to understand which key genes are regulated by ACCd bacteria to promote drought stress tolerance and post-stress recovery. ACCd bacteria inoculation resulted in differential expression of 122 genes under well-watered conditions, including up-regulation of genes involved in root growth, water dynamics, and antioxidant production (OTS1), cell wall modification (PMEI25), anti-senescence (S3H), and reduced ROS (ADH2), as well as down-regulation of genes associated with abiotic stress response (AAO5). Inoculation also resulted in differential expression of 15 genes under drought stress, including upregulation of OTS1 and ADH2. After 15 days of post-drought re-watering, inoculated plants demonstrated differential expression of 13 genes, including up-regulation of RAD6, which is associated with DNA repair, and D10, which is associated with tiller development. These findings help to explain the mechanisms associated with ACCd-bacteria mediated drought stress tolerance and post-drought recovery in cool season turfgrass."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Errickson, W., and B. Huang. 2023. Molecular regulation of creeping bentgrass tolerance to drought stress by plant growth promoting rhizobacteria. Agron. Abr. p. 150292.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=333397
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    Last checked: 12/01/2023
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