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In vitro germination and development of “Canelita” (Lycaste aromatica (Graham) Lindl.) in gravity immersion bioreactors

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Abstract

Lycaste aromatica (Graham) Lindl. orchid is known for its outstanding cinnamon aroma, which has caused its illegal and accelerated extraction from its natural habitat. For this reason, procedures were developed for asymbiotic seed germination and seedling development in a gravity immersion bioreactor (GIB) system. Four culture media were tested for in vitro germination: ½ Murashige and Skoog (MS) containing 15 g L−1 sucrose, MS, ½ Knudson C containing 15 g L−1 sucrose, and Knudson C. The efficiency of in vitro culture protocol using semi-solid medium was compared to four immersion frequencies of the GIB system in a liquid medium using 30 mL of ½ MS medium per seedling. Germination began at 8 wk and lasted for 6 wk. The best treatment was ½ MS with 81% seed germination. In 90 d, the GIB did not result in significant effects on most growth parameters, including number of leaves; number of roots and seedling height were not significantly different to those of seedlings developed in the semi-solid medium. However, seedlings developed in the semi-solid medium reported a higher number of shoots (1.6 shoots) and root length (2 cm). The GIB showed the highest photosynthesis rate (0.74 μmol CO2 g−1 s−1). The GIB could be an alternative to develop this species due to its increased photosynthesis and having stomatal function.

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

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Acknowledgements

Author FYSZ would like to thank the National Council of Science and Technology (Consejo Nacional de Ciencia y Tecnología) of Mexico (CONACyT) for providing a master’s in science scholarship at the Colegio de Postgraduados Campus Córdoba.

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FYSZ: research and completed the experiments and manuscript draft. OBB: conceptualization, research suggestion, methodology, and finalized the manuscript, NCH: responsible for result interpretation and editing of the draft manuscript. JVHC, JAPS: designed the experiments and statistical analysis. All of the authors have read and approved the final manuscript.

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Correspondence to O. Baltazar-Bernal.

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Solís-Zanotelli, F.Y., Baltazar-Bernal, O., Cruz-Huerta, N. et al. In vitro germination and development of “Canelita” (Lycaste aromatica (Graham) Lindl.) in gravity immersion bioreactors. In Vitro Cell.Dev.Biol.-Plant 58, 1117–1125 (2022). https://doi.org/10.1007/s11627-022-10314-4

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  • DOI: https://doi.org/10.1007/s11627-022-10314-4

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