Enhancement of the aroma compound 2-acetyl-1-pyrroline in thai jasmine rice (Oryza sativa) by rhizobacteria under salt stress
| Autor: | Kawiporn Chinachanta, Laetitia Herrmann, Arawan Shutsrirung, Wasu Pathom-aree, Didier Lesueur |
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| Přispěvatelé: | Chiang Mai University (CMU), International Center for Tropical Agriculture [Hanoï] (CIAT Asia), International Center for Tropical Agriculture [Colombie] (CIAT), Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR), The Alliance of Bioversity International and International Center for Tropical Agriculture (CIAT) [Hanoi], Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT) [Rome] (Alliance), Deakin University [Burwood], Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Graduate School, Chiang Mai University |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences plant growth-promoting rhizobacteria QH301-705.5 Oryza sativa Biology Rhizobacteria 2-Acetyl-1-pyrroline 01 natural sciences General Biochemistry Genetics and Molecular Biology Article aromatic rice 03 medical and health sciences chemistry.chemical_compound Grain quality Aroma compound [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Tolérance au sel Biology (General) 2AP Q04 - Composition des produits alimentaires Rhizobactérie Aromatic rice Aroma 030304 developmental biology salinity stress 2. Zero hunger 0303 health sciences Rhizosphere General Immunology and Microbiology 2-acetyl-1-pyrroline food and beverages Composé aromatique 15. Life on land biology.organism_classification Horticulture Stress osmotique chemistry 13. Climate action Thai jasmine rice General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | Biology Biology, MDPI 2021, 10 (10), pp.1065. ⟨10.3390/biology10101065⟩ Biology, Vol 10, Iss 1065, p 1065 (2021) Volume 10 Issue 10 |
| ISSN: | 2079-7737 |
| DOI: | 10.3390/biology10101065⟩ |
| Popis: | Simple Summary The major aroma compound (2-acetyl-1-pyrroline) of the world-famous Thai jasmine rice, variety KDML105, has declined due to high soil salinity and agrochemical input. In this work, the rhizobacteria from rice were investigated for the aroma compound’s production, as well as their potential for increasing the compound content in Thai jasmine rice seedlings under saline conditions. Our results provide evidence that the addition of aroma compound-producing rhizobacteria increases the aroma content in the rice seedlings under salt stress. Sinomonas sp. strain ORF15-23 which colonize the rice roots, is a promising rhizobacteria in promoting the aroma level of the Thai jasmine rice grown under salt stress and could be developed as a bioinoculant for Thai jasmine rice cultivation in a salt-affected area. Abstract 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. |
| Databáze: | OpenAIRE |
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