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Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)

Polygala fallax Hemsl. (Polygalaceae), a traditional Chinese medicinal species, requires optimal growth conditions for artificial cultivation. Irradiance is one of the primary environmental factors that affects the growth and survival of P. fallax Hemsl. plants, which seemingly grow better under wea...

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Autores principales: Liang, Huiling, Liu, Baoyu, Wu, Chao, Zhang, Xiujiao, Wang, Manlian, Huang, Xiyang, Wan, Li, Tang, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9459231/
https://www.ncbi.nlm.nih.gov/pubmed/36092442
http://dx.doi.org/10.3389/fpls.2022.985628
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author Liang, Huiling
Liu, Baoyu
Wu, Chao
Zhang, Xiujiao
Wang, Manlian
Huang, Xiyang
Wan, Li
Tang, Hui
author_facet Liang, Huiling
Liu, Baoyu
Wu, Chao
Zhang, Xiujiao
Wang, Manlian
Huang, Xiyang
Wan, Li
Tang, Hui
author_sort Liang, Huiling
collection PubMed
description Polygala fallax Hemsl. (Polygalaceae), a traditional Chinese medicinal species, requires optimal growth conditions for artificial cultivation. Irradiance is one of the primary environmental factors that affects the growth and survival of P. fallax Hemsl. plants, which seemingly grow better under weak irradiance conditions. However, the optimum light intensity for growing P. fallax Hemsl. is not clear. To determine the optimum light intensity for cultivating this medicinal plant species, P. fallax Hemsl. plants from two different habitats were grown and exposed to three shade treatments (50% shade, 70% shade and 90% shade, which resulted in photosynthetically active radiation amounts equal to 662 μmol m(−2) s(−1), 401 μmol m(−2) s(−1), and 131 μmol m(−2) s(−1), respectively) to evaluate survival, growth, leaf photosynthesis, and the main pharmacological active ingredients (saponins) in response to shade. Our results revealed that the P. fallax Hemsl. plants in the different habitats consistently exhibited relatively high photosynthesis rates, biomass, survival rates and saponins under 662 μmol m(−2) s(−1) created by the 50% shade treatment. We concluded that photosynthetically active radiation of approximately 662 μmol m(−2) s(−1) is suitable for the cultivation of P. fallax Hemsl. plants.
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spelling pubmed-94592312022-09-10 Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae) Liang, Huiling Liu, Baoyu Wu, Chao Zhang, Xiujiao Wang, Manlian Huang, Xiyang Wan, Li Tang, Hui Front Plant Sci Plant Science Polygala fallax Hemsl. (Polygalaceae), a traditional Chinese medicinal species, requires optimal growth conditions for artificial cultivation. Irradiance is one of the primary environmental factors that affects the growth and survival of P. fallax Hemsl. plants, which seemingly grow better under weak irradiance conditions. However, the optimum light intensity for growing P. fallax Hemsl. is not clear. To determine the optimum light intensity for cultivating this medicinal plant species, P. fallax Hemsl. plants from two different habitats were grown and exposed to three shade treatments (50% shade, 70% shade and 90% shade, which resulted in photosynthetically active radiation amounts equal to 662 μmol m(−2) s(−1), 401 μmol m(−2) s(−1), and 131 μmol m(−2) s(−1), respectively) to evaluate survival, growth, leaf photosynthesis, and the main pharmacological active ingredients (saponins) in response to shade. Our results revealed that the P. fallax Hemsl. plants in the different habitats consistently exhibited relatively high photosynthesis rates, biomass, survival rates and saponins under 662 μmol m(−2) s(−1) created by the 50% shade treatment. We concluded that photosynthetically active radiation of approximately 662 μmol m(−2) s(−1) is suitable for the cultivation of P. fallax Hemsl. plants. Frontiers Media S.A. 2022-08-26 /pmc/articles/PMC9459231/ /pubmed/36092442 http://dx.doi.org/10.3389/fpls.2022.985628 Text en Copyright © 2022 Liang, Liu, Wu, Zhang, Wang, Huang, Wan and Tang. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Liang, Huiling
Liu, Baoyu
Wu, Chao
Zhang, Xiujiao
Wang, Manlian
Huang, Xiyang
Wan, Li
Tang, Hui
Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title_full Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title_fullStr Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title_full_unstemmed Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title_short Effects of light intensity on the growth of Polygala fallax Hemsl. (Polygalaceae)
title_sort effects of light intensity on the growth of polygala fallax hemsl. (polygalaceae)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9459231/
https://www.ncbi.nlm.nih.gov/pubmed/36092442
http://dx.doi.org/10.3389/fpls.2022.985628
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