TY - JOUR
T1 - Comparative transcriptome profiling provides insights into the growth promotion activity of Pseudomonas fluorescens strain SLU99 in tomato and potato plants
AU - Hanifah, Nurul Atilia Shafienaz binti
AU - Ghadamgahi, Farideh
AU - Ghosh, Samrat
AU - Ortiz, Rodomiro
AU - Whisson, Stephen C.
AU - Vetukuri, Ramesh R.
AU - Kalyandurg, Pruthvi B.
N1 - Funding Information:
This research work was supported by FORMAS (2019-01316) and the Swedish Research Council (2019–04270), Novo Nordisk Fonden (0074727), Carl Tryggers Stiftelse (CTS 20:464), SLU’s Centre for Biological Control and Partneskap Alnarp (PA1365-2021). SW acknowledges funding from the Scottish Government Rural and Environment Science and Analytical Services (RESAS) Division.
Copyright:
© 2023 Hanifah, Ghadamgahi, Ghosh, Ortiz, Whisson, Vetukuri and Kalyandurg.
PY - 2023/7/18
Y1 - 2023/7/18
N2 - The use of biocontrol agents with plant growth-promoting activity has emerged as an approach to support sustainable agriculture. During our field evaluation of potato plants treated with biocontrol rhizobacteria, four bacteria were associated with increased plant height. Using two important solanaceous crop plants, tomato and potato, we carried out a comparative analysis of the growth-promoting activity of the four bacterial strains: Pseudomonas fluorescens SLU99, Serratia plymuthica S412, S. rubidaea AV10, and S. rubidaea EV23. Greenhouse and in vitro experiments showed that P. fluorescens SLU99 promoted plant height, biomass accumulation, and yield of potato and tomato plants, while EV23 promoted growth in potato but not in tomato plants. SLU99 induced the expression of plant hormone-related genes in potato and tomato, especially those involved in maintaining homeostasis of auxin, cytokinin, gibberellic acid and ethylene. Our results reveal potential mechanisms underlying the growth promotion and biocontrol effects of these rhizobacteria and suggest which strains may be best deployed for sustainably improving crop yield.
AB - The use of biocontrol agents with plant growth-promoting activity has emerged as an approach to support sustainable agriculture. During our field evaluation of potato plants treated with biocontrol rhizobacteria, four bacteria were associated with increased plant height. Using two important solanaceous crop plants, tomato and potato, we carried out a comparative analysis of the growth-promoting activity of the four bacterial strains: Pseudomonas fluorescens SLU99, Serratia plymuthica S412, S. rubidaea AV10, and S. rubidaea EV23. Greenhouse and in vitro experiments showed that P. fluorescens SLU99 promoted plant height, biomass accumulation, and yield of potato and tomato plants, while EV23 promoted growth in potato but not in tomato plants. SLU99 induced the expression of plant hormone-related genes in potato and tomato, especially those involved in maintaining homeostasis of auxin, cytokinin, gibberellic acid and ethylene. Our results reveal potential mechanisms underlying the growth promotion and biocontrol effects of these rhizobacteria and suggest which strains may be best deployed for sustainably improving crop yield.
KW - beneficial bacteria
KW - ethylene
KW - IAA
KW - PGPR - plant growth-promoting rhizobacteria
KW - Pseudomonas fluorescens
KW - Serratia
KW - transcriptome (RNA-seq)
UR - http://www.scopus.com/inward/record.url?scp=85161686937&partnerID=8YFLogxK
U2 - 10.3389/fpls.2023.1141692
DO - 10.3389/fpls.2023.1141692
M3 - Article
C2 - 37534284
AN - SCOPUS:85161686937
SN - 1664-462X
VL - 14
JO - Frontiers in Plant Science
JF - Frontiers in Plant Science
M1 - 1141692
ER -