Transcriptome Landscapes of Salt-Susceptible Rice Cultivar IR29 Associated with a Plant Growth Promoting Endophytic Streptomyces

• Published in: Rice (New York, N.Y.) Vol. 16; no. 1; p. 6
• Main Authors: Kruasuwan, Worarat, Lohmaneeratana, Karan, Munnoch, John T., Vongsangnak, Wanwipa, Jantrasuriyarat, Chatchawan, Hoskisson, Paul A., Thamchaipenet, Arinthip
• Format: Journal Article
• Language: English
• Published: New York Springer US 04-02-2023; Springer Nature B.V; SpringerOpen
• Subjects: ACC deaminase; Actinomycetes; Agriculture; Beneficial plant-microbe interactions in rice; Biomedical and Life Sciences; Cultivars; Endophytes; Gene expression; Genes; Homeostasis; Hormones; Ion transport; Life Sciences; Oryza sativa L. cv. IR29; Pathogenesis; Phenotypes; Photosynthesis; Plant Breeding/Biotechnology; Plant Ecology; Plant Genetics and Genomics; Plant growth; Plant Sciences; Plants (botany); Plant–microbe interaction; Rice; Salinity tolerance; Salt; Salt tolerance; Scavenging; Sodium chloride; Streptomyces; Symbiosis; Transcription factors; Transcriptomes; Plant–microbe interaction; Salt tolerance; L. cv. IR29; ACC deaminase; Streptomyces; Oryza sativa L. cv. IR29
• ISSN: 1939-8425; 1939-8433; 1934-8037
• DOI: 10.1186/s12284-023-00622-7

Plant growth-promoting endophytic (PGPE) actinomycetes have been known to enhance plant growth and mitigate plant from abiotic stresses via their PGP-traits. In this study, PGPE
Streptomyces
sp. GKU 895 promoted growth and alleviated salt tolerance of salt-susceptible rice cultivar IR29 by augmentation of plant weight and declined ROS after irrigation with 150 mM NaCl in a pot experiment. Transcriptome analysis of IR29 exposed to the combination of strain GKU 895 and salinity demonstrated up and downregulated differentially expressed genes (DEGs) classified by gene ontology and plant reactome.
Streptomyces
sp. GKU 895 induced changes in expression of rice genes including transcription factors under salt treatment which involved in growth and development, photosynthesis, plant hormones, ROS scavenging, ion transport and homeostasis, and plant–microbe interactions regarding pathogenesis- and symbiosis-related proteins. Taken together, these data demonstrate that PGPE
Streptomyces
sp. GKU 895 colonized and enhanced growth of rice IR29 and triggered salt tolerance phenotype. Our findings suggest that utilisation of beneficial endophytes in the saline fields could allow for the use of such marginal soils for growing rice and possibly other crops.