Enhancement of the aroma compound 2-acetyl-1-pyrroline in thai jasmine rice (Oryza sativa) by rhizobacteria under salt stress Chinachanta, K, Shutsrirung, A, Herrmann, Laetitia, Lesueur, Didier and Pathom-Aree, W 2021, Enhancement of the aroma compound 2-acetyl-1-pyrroline in thai jasmine rice (Oryza sativa) by rhizobacteria under salt stress, Biology, vol. 10, no. 1065, pp. 1-16, doi: 10.3390/biology10101065. Attached Files Name Description MIMEType Size Downloads Title Enhancement of the aroma compound 2-acetyl-1-pyrroline in thai jasmine rice (Oryza sativa) by rhizobacteria under salt stress Author(s) Chinachanta, K Shutsrirung, A Herrmann, Laetitia orcid.org/0000-0002-6694-0869 Lesueur, Didier Pathom-Aree, W Journal name Biology Volume number 10 Issue number 1065 Start page 1 End page 16 Total pages 16 Publisher MDPI Place of publication Basel, Switzerland Publication date 2021 ISSN 2079-7737 2079-7737 Keyword(s) 2-acetyl-1-pyrroline 2AP aromatic rice Oryza sativa plant growth-promoting rhizobacteria salinity stress Thai jasmine rice Summary Thai jasmine rice (Oryza sativa L. KDML105), particularly from inland salt-affected areas in Thailand, is both domestically and globally valued for its unique aroma and high grain quality. The key aroma compound, 2-acetyl-1-pyrroline (2AP), has undergone a gradual degradation due to anthropogenic soil salinization driven by excessive chemical input and climate change. Here, we propose a cheaper and an ecofriendly solution to improve the 2AP levels, based on the application of plant growth-promoting rhizobacteria (PGPR). In the present study, nine PGPR isolates from rice rhizosphere were investigated for the 2AP production in liquid culture and the promotion potential for 2AP content in KDML105 rice seedlings under four NaCl concentrations (0, 50, 100, and 150 mM NaCl). The inoculation of 2AP-producing rhizobacteria resulted in an increase in 2AP content in rice seedling leaves with the maximum enhancement from Sinomonas sp. ORF15-23 at 50 mM NaCl (19.6 µg·kg−1), corresponding to a 90.2% increase as compared to the control. Scanning electron microscopy confirmed the colonization of Sinomonas sp. ORF15-23 in the roots of salinity-stressed KDML105 seedlings. Our results provide evidence that Sinomonas sp. ORF15-23 could be a promising PGPR isolate in promoting aroma level of Thai jasmine rice KDML105 under salt stress. Language eng DOI 10.3390/biology10101065 Indigenous content off Field of Research 06 Biological Sciences HERDC Research category C1 Refereed article in a scholarly journal Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30158587 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment Open Access Collection Centre for Regional and Rural Futures Related Links Link Description Connect to full text (open access) Go to link with your DU access privileges   Connect to Elements publication management system Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Wed, 17 Nov 2021, 07:17:30 EST Wed, 17 Nov 2021, 15:38:12 EST Wed, 17 Nov 2021, 15:42:29 EST Thu, 18 Nov 2021, 15:36:27 EST Thu, 18 Nov 2021, 16:08:31 EST Wed, 08 Dec 2021, 12:40:33 EST Wed, 08 Dec 2021, 13:40:26 EST Wed, 08 Dec 2021, 13:43:12 EST Mon, 17 Jan 2022, 13:51:33 EST Sat, 12 Mar 2022, 01:33:25 EST Filtered Full Citation counts:   Cited 1 times in TR Web of Science Cited 2 times in Scopus Search Google Scholar Access Statistics: 32 Abstract Views, 1 File Downloads  -  Detailed Statistics Created: Thu, 18 Nov 2021, 15:36:27 EST