Publication
Title
Biochemical and pharmaceutical traits of Marrubium vulgare L. plants treated with plant growth-promoting bacteria and elevated CO₂
Author
Abstract
The present research aimed to understand the influence of plant growth-promoting bacteria (PGPB) on various biochemical, nutritional, and pharmaceutical characteristics of Marrubium vulgare plants grown under elevated carbon dioxide (eCO(2)). To achieve this objective, a pot experiment was carried out, consisting of two treatments, namely: (i) biofertilization (Bf) by a PGPB strain (Micromonospora sp.) and (ii) two different air CO2 levels, including ambient CO2 (aCO(2)) and eCO(2) concentrations (410 and 710 mu mol CO2 mol(-1), respectively). The improvement in the photosynthesis rate of eCO(2) and Bf-treated plants can explain the increase in the production of carbohydrate. This is evidenced by a substantial rise, reaching up to + 75% and 25% in the total sugar and starch content in plants subjected to eCO(2) treatment, respectively. Additionally, eCO(2)-treated plants exhibited a remarkable 102% increase in soluble sugar synthesis, while plants subjected to Bf treatment showed a notable increase of 66%. Such modifications could be the main factor affecting plants carbon and nitrogen metabolism. Although the level of certain amino acids (such as glycine, tyrosine, and phenylalanine) in plants exhibited significant increases in response to eCO(2) and Bf, the levels of other amino acids demonstrated enhancements in plants grown under eCO(2) (e.g., histidine) or under treatments containing Bf (e.g., alanine and ornithine). Improvements in primary metabolites led to more benefits in plants treated with Bf and CO2 by boosting secondary metabolites accumulation, including phenolics (+ 27-100%), flavonoids (+ 30-92%), and essential oils (up to + 296%), as well as improved antioxidant capacity (FRAP). This remarkable effectiveness was evident in the significant increase in the biomass production, highlighting the synergistic impact of the treatments. Therefore, the interaction of Bf and eCO(2) not only induced plant biomass accumulation but also improved the nutritional and pharmaceutical value of M. vulgare plants.
Language
English
Source (journal)
3 biotech. - Heidelberg, 2011, currens
Publication
Heidelberg : Springer , 2023
ISSN
2190-572X [print]
2190-5738 [online]
DOI
10.1007/S13205-023-03836-0
Volume/pages
13 :12 (2023) , p. 1-15
Article Reference
412
ISI
001106658200002
Pubmed ID
37997597
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 09.01.2024
Last edited 12.02.2024
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