AUTHOR=Alrajeh Hind Salih , Sherif Fadia El 

TITLE=Study the effect of Enterobacter cloacae on the gene expression, productivity, and quality traits of Curcuma longa L. Plant

JOURNAL=Frontiers in Plant Science

VOLUME=15

YEAR=2024

URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2024.1393198

DOI=10.3389/fpls.2024.1393198

ISSN=1664-462X

ABSTRACT=<p>Overuse of artificial chemical fertilizers could be detrimental to the environment. Utilizing beneficial microorganisms as biofertilizers is a sustainable technique that promotes soil health, crop yield, and ecosystem preservation. <italic>Curcuma longa</italic> L. is utilized as a medication since it has its antibacterial, anti-microbial, and anti-tumor characteristics, which reduce inflammation and hasten wound healing. The effect of <italic>E. cloacae</italic> strain MSR1, which is common in the roots of alfalfa grown in the Al-Ahsaa region, on <italic>C. longa</italic> plants is being investigated. <italic>C. longa</italic> rhizomes were planted under greenhouse conditions after being submerged in a solution of <italic>E. cloacae</italic> strain MSR1 (OD 500) or water treatment as a control for 12 hours. After 240 days of growing, ten randomly selected plants from each treatment were collected, and the vegetative growth and yield metrics were assessed. To investigate how <italic>E. cloacae</italic> influences <italic>C. longa</italic> production and chemical composition (photosynthetic pigment, nitrogen, phosphorus, potassium, and curcuminoid), measurements were conducted as well as genes diketide-CoA and curcumin synthases genes. Our research showed that <italic>C. longa's</italic> growth and yield were favorably impacted by <italic>E. cloacae.</italic> Significant increases in the related plants' chlorophyll a,b, carotenoid, nitrogen, phosphorus, and potassium levels were likewise a reflection of the enhanced effects shown in the growth and yield parameters. Treatment with <italic>E. cloacae</italic> raised the curcuminoid's three sub-components' compositions to varying degrees: bisdemethoxycurcumin, demethoxycurcumin, and curcumin. Comparing <italic>E. cloacae</italic> treated plants to the control, high expression levels of the genes diketide-CoA and curcumin synthase-1, -2, and 3 were also found. The treatment of <italic>E. cloacae</italic> is a good biostimulant candidate for boosting growth and yield as well as raising the medicinal qualities of C. longa, according to the overall results.</p>