Endophytic bacterium Bacillus aryabhattai induces novel transcriptomic changes to stimulate plant growth

• Published in: PloS one Vol. 17; no. 8; p. e0272500
• Main Authors: Xu, Hongli, Gao, Jingyao, Portieles, Roxana, Du, Lihua, Gao, Xiangyou, Borras-Hidalgo, Orlando
• Format: Journal Article
• Language: English
• Published: San Francisco Public Library of Science 03.08.2022; Public Library of Science (PLoS)
• Subjects: Acids; Agricultural production; Agriculture; Alcohol dehydrogenase; Apyrase; Arabidopsis; Arginine decarboxylase; ATP synthase; Bacillus anthracis; Bacillus aryabhattai; Bacteria; Benzaldehyde; Berberine; Biology and Life Sciences; Cinnamyl-alcohol dehydrogenase; D-hydantoinase; Dehydration; Dehydrogenase; Endophytes; Fermentation; Flowers & plants; Genes; Genetic aspects; Gibberellins; Growth; Hydantoinase; Indoleacetaldoxime dehydratase; Medicine and Health Sciences; Metabolites; Microorganisms; Plant growth; Plants; Properties; Research and Analysis Methods; Seeds; Sustainable agriculture; Thioredoxin; Tobacco; Transcriptomics; China; United States > US; Germany
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0272500

In nature, plants interact with a wide range of microorganisms, and most of these microorganisms could induce growth through the activation of important molecular pathways. The current study evaluated whether the endophytic bacterium Bacillus aryabhattai encourages plant growth and the transcriptional changes that might be implicated in this effect. The endophytic bacterium promotes the growth of Arabidopsis and tobacco plants. The transcriptional changes in Arabidopsis plants treated with the bacterium were also identified, and the results showed that various genes, such as cinnamyl alcohol dehydrogenase, apyrase, thioredoxin H8, benzaldehyde dehydrogenase, indoleacetaldoxime dehydratase, berberine bridge enzyme-like and gibberellin-regulated protein, were highly expressed. Also, endophytic bacterial genes, such as arginine decarboxylase, D-hydantoinase, ATP synthase gamma chain and 2-hydroxyhexa-2,4-dienoate hydratase, were activated during the interaction. These findings demonstrate that the expression of novel plant growth-related genes is induced by interaction with the endophytic bacterium B. aryabhattai and that these changes may promote plant growth in sustainable agriculture.