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Volatile organic compound (VOC) profile and plantlet growth of Aeollanthus suaveolens under conventional and alternative membrane systems

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Abstract

In conventional in vitro culture, plantlets are kept in closed containers to avoid contamination and drying of the explant. Ventilation inside the containers improves plant growth and affects secondary metabolism, as it modifies the microenvironmental conditions. Therefore, the objective of this study was to evaluate the effect of the use of ventilation systems on the growth characteristics and production of photosynthetic pigments and volatile organic compounds (VOCs) in Aeollanthus suaveolens Mart. ex Spreng. (Lamiaceae) cultured in vitro. Nodal segments containing one pair of leaves were cultured in a conventional system (NMS) and in natural ventilation systems with one (AMS1), two (AMS2) and four (AMS4) porous membranes. At 40 days, the plantlets were evaluated for growth, VOC concentration, and photosynthetic pigment production. The number of porous membranes used in the vial cap affected growth, photosynthetic pigments and VOCs. A higher number of porous membranes (AMS4) led to greater dry weight accumulation, increased production of photosynthetic pigments, and enhanced synthesis of (Z)-β-farnesene. Lower growth and fewer photosynthetic pigments, and increase linalool acetate synthesis were observed in the culture without the use of porous membranes (NMS). The leaf area of plantlets cultivated with the use of four membranes was 3.8 times greater than that of plantlets cultivated without the use of membranes. For the photoautotrophic cultivation of A. suaveolens in vitro, the use of natural ventilation with four membranes is recommended because it promotes better growth, increases the production of photosynthetic pigments and is superior to the conventional sealed system.

Key Message

Alternative membrane systems led to differentiation in the contents of the main volatile organic compound and improve anatomical characteristics, accumulation of photosynthetic pigments and dry weight.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author on a reasonable request.

Abbreviations

VOCs:

Volatile organic compounds

AMS1:

Alternative membrane system using lids with one membrane

AMS2:

Alternative membrane system using lids with two membranes

AMS4:

Alternative membrane system using lids with four membranes

NMS:

No membrane system

SN:

Shoot number

LN:

Leaf number

RN:

Root number

SL:

Shoot length

LLR:

Length of longest root

TLA:

Total leaf area

LDW:

Leaf dry weight

SDW:

Stem dry weight

RDW:

Root dry weight

TDW:

Total dry weight

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Acknowledgements

The authors would like to thank the National Council for Scientific and Technological Development (CNPq—Conselho Nacional de Desenvolvimento Científico e Tecnológico), the Coordination for the Improvement of Higher Education Personnel (CAPES—Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) and the Minas Gerais State Research Foundation (FAPEMIG—Fundação de Pesquisa do Estado de Minas Gerais) for financial support (scholarships and research grants).

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The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

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Authors

Contributions

All authors contributed substantially to the work reported. DXA: writing of the manuscript, investigation. TTR: investigation. AAC: data analysis, graphic design. APRM: investigation. FNSR: investigation. RMAA: investigation. SKVB: concept of the study, chemical analyses. JEBPP: concept of the study, writing of the manuscript, project administration.

Corresponding authors

Correspondence to Suzan Kelly Vilela Bertolucci or José Eduardo Brasil Pereira Pinto.

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The authors declare that they have no conflict of interest.

Additional information

Communicated by Konstantin V. Kiselev.

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Araújo, D.X., Rocha, T.T., de Carvalho, A.A. et al. Volatile organic compound (VOC) profile and plantlet growth of Aeollanthus suaveolens under conventional and alternative membrane systems. Plant Cell Tiss Organ Cult 153, 333–342 (2023). https://doi.org/10.1007/s11240-023-02469-8

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  • DOI: https://doi.org/10.1007/s11240-023-02469-8

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