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Davarzani M, Aliniaeifard S, Mehrjerdi MZ, Roozban MR, Saeedi SA, Gruda NS. Optimizing supplemental light spectrum improves growth and yield of cut roses. Sci Rep 2023; 13:21381. [PMID: 38049454 PMCID: PMC10696034 DOI: 10.1038/s41598-023-48266-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 11/24/2023] [Indexed: 12/06/2023] Open
Abstract
During the seasons with limited light intensity, reductions in growth, yield, and quality are challenging for commercial cut rose production in greenhouses. Using artificial supplemental light is recommended for maintaining commercial production in regions with limited light intensity. Nowadays, replacing traditional lighting sources with LEDs attracted lots of attention. Since red (R) and blue (B) light spectra present the important wavelengths for photosynthesis and growth, in the present study, different ratios of supplemental R and B lights, including 90% R: B 10% (R90B10), 80% R: 20% B (R80B20), 70% R: 30% B (R70B30) with an intensity of 150 µmol m-2 s-1 together with natural light and without supplemental light (control) were applied on two commercial rose cultivars. According to the obtained results, supplemental light improved growth, carbohydrate levels, photosynthesis capacity, and yield compared to the control. R90B10 in both cultivars reduced the time required for flowering compared to the control treatment. R90B10 and R80B20 obtained the highest number of harvested flower stems in both cultivars. Chlorophyll and carotenoid levels were the highest under control. They had a higher ratio of B light, while carbohydrate and anthocyanin contents increased by having a high ratio of R light in the supplemental light. Analysis of chlorophyll fluorescence was indicative of better photosynthetic performance under a high ratio of R light in the supplemental light. In conclusion, the R90B10 light regime is recommended as a suitable supplemental light recipe to improve growth and photosynthesis, accelerate flowering, and improve the yield and quality of cut roses.
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Affiliation(s)
- Maryam Davarzani
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran
| | - Sasan Aliniaeifard
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran.
- Controlled Environment Agriculture Center, College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran.
| | - Mahboobeh Zare Mehrjerdi
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran
| | - Mahmood Reza Roozban
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran
| | - Seyyed Arash Saeedi
- Photosynthesis Laboratory, Department of Horticulture, College of Agricultural Technology (Aburaihan), University of Tehran, Pakdasht, Tehran, Iran
| | - Nazim S Gruda
- Department of Horticultural Science, INRES-Institute of Crop Science and Resource Conservation, University of Bonn, 53121, Bonn, Germany.
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Saeedi SA, Vahdati K, Sarikhani S, Daylami SD, Davarzani M, Gruda NS, Aliniaeifard S. Growth, photosynthetic function, and stomatal characteristics of Persian walnut explants in vitro under different light spectra. FRONTIERS IN PLANT SCIENCE 2023; 14:1292045. [PMID: 38046599 PMCID: PMC10690960 DOI: 10.3389/fpls.2023.1292045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023]
Abstract
Light plays a crucial role in photosynthesis, which is an essential process for plantlets produced during in vitro tissue culture practices and ex vitro acclimatization. LED lights are an appropriate technology for in vitro lighting but their effect on propagation and photosynthesis under in vitro condition is not well understood. This study aimed to investigate the impact of different light spectra on growth, photosynthetic functionality, and stomatal characteristics of micropropagated shoots of Persian walnut (cv. Chandler). Tissue-cultured walnut nodal shoots were grown under different light qualities including white, blue, red, far-red, green, combination of red and blue (70:30), combination of red and far-red (70:30), and fluorescent light as the control. Results showed that the best growth and vegetative characteristics of in vitro explants of Persian walnut were achieved under combination of red and blue light. The biggest size of stomata was detected under white and blue lights. Red light stimulated stomatal closure, while stomatal opening was induced under blue and white lights. Although the red and far-red light spectra resulted in the formation of elongated explants with more lateral shoots and anthocyanin content, they significantly reduced the photosynthetic functionality. Highest soluble carbohydrate content and maximum quantum yield of photosystem II were detected in explants grown under blue and white light spectra. In conclusion, growing walnut explants under combination of red and blue lights leads to better growth, photosynthesis functionality, and the emergence of functional stomata in in vitro explants of Persian walnuts.
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Affiliation(s)
- Seyyed Arash Saeedi
- Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
| | - Kourosh Vahdati
- Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
| | - Saadat Sarikhani
- Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
| | | | - Maryam Davarzani
- Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
| | - Nazim S. Gruda
- Department of Horticultural Science, INRES–Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany
| | - Sasan Aliniaeifard
- Department of Horticulture, College of Aburaihan, University of Tehran, Tehran, Iran
- Controlled Environment Agriculture Center (CEAC), College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
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Vatankhah A, Aliniaeifard S, Moosavi-Nezhad M, Abdi S, Mokhtarpour Z, Reezi S, Tsaniklidis G, Fanourakis D. Plants exposed to titanium dioxide nanoparticles acquired contrasting photosynthetic and morphological strategies depending on the growing light intensity: a case study in radish. Sci Rep 2023; 13:5873. [PMID: 37041194 PMCID: PMC10090060 DOI: 10.1038/s41598-023-32466-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 03/28/2023] [Indexed: 04/13/2023] Open
Abstract
Due to the photocatalytic property of titanium dioxide (TiO2), its application may be dependent on the growing light environment. In this study, radish plants were cultivated under four light intensities (75, 150, 300, and 600 μmol m-2 s-1 photosynthetic photon flux density, PPFD), and were weekly sprayed (three times in total) with TiO2 nanoparticles at different concentrations (0, 50, and 100 μmol L-1). Based on the obtained results, plants used two contrasting strategies depending on the growing PPFD. In the first strategy, as a result of exposure to high PPFD, plants limited their leaf area and send the biomass towards the underground parts to limit light-absorbing surface area, which was confirmed by thicker leaves (lower specific leaf area). TiO2 further improved the allocation of biomass to the underground parts when plants were exposed to higher PPFDs. In the second strategy, plants dissipated the absorbed light energy into the heat (NPQ) to protect the photosynthetic apparatus from high energy input due to carbohydrate and carotenoid accumulation as a result of exposure to higher PPFDs or TiO2 concentrations. TiO2 nanoparticle application up-regulated photosynthetic functionality under low, while down-regulated it under high PPFD. The best light use efficiency was noted at 300 m-2 s-1 PPFD, while TiO2 nanoparticle spray stimulated light use efficiency at 75 m-2 s-1 PPFD. In conclusion, TiO2 nanoparticle spray promotes plant growth and productivity, and this response is magnified as cultivation light intensity becomes limited.
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Affiliation(s)
- Akram Vatankhah
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, P.O. Box 33916-53755, Tehran, Iran
- Department of Horticulture, Faculty of Agriculture, University of Shahrekord, Shahrekord, Iran
| | - Sasan Aliniaeifard
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, P.O. Box 33916-53755, Tehran, Iran.
| | - Moein Moosavi-Nezhad
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, P.O. Box 33916-53755, Tehran, Iran
- Department of Horticultural Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Sahar Abdi
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, P.O. Box 33916-53755, Tehran, Iran
| | - Zakieh Mokhtarpour
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, P.O. Box 33916-53755, Tehran, Iran
| | - Saeed Reezi
- Department of Horticulture, Faculty of Agriculture, University of Shahrekord, Shahrekord, Iran
| | - Georgios Tsaniklidis
- Laboratory of Vegetable Crops, Institute of Olive Tree, Subtropical Plants and Viticulture, Hellenic Agricultural Organization 'ELGO DIMITRA', 73100, Chania, Greece
| | - Dimitrios Fanourakis
- Laboratory of Quality and Safety of Agricultural Products, Landscape and Environment, Department of Agriculture, School of Agricultural Sciences, Hellenic Mediterranean University, Estavromenos, 71004, Heraklion, Greece
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Li K, Ji L, Xing Y, Zuo Z, Zhang L. Data-Independent Acquisition Proteomics Reveals the Effects of Red and Blue Light on the Growth and Development of Moso Bamboo ( Phyllostachys edulis) Seedlings. Int J Mol Sci 2023; 24:ijms24065103. [PMID: 36982175 PMCID: PMC10049362 DOI: 10.3390/ijms24065103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
Moso bamboo is a rapidly growing species with significant economic, social, and cultural value. Transplanting moso bamboo container seedlings for afforestation has become a cost-effective method. The growth and development of the seedlings is greatly affected by the quality of light, including light morphogenesis, photosynthesis, and secondary metabolite production. Therefore, studies on the effects of specific light wavelengths on the physiology and proteome of moso bamboo seedlings are crucial. In this study, moso bamboo seedlings were germinated in darkness and then exposed to blue and red light conditions for 14 days. The effects of these light treatments on seedling growth and development were observed and compared through proteomics analysis. Results showed that moso bamboo has higher chlorophyll content and photosynthetic efficiency under blue light, while it displays longer internode and root length, more dry weight, and higher cellulose content under red light. Proteomics analysis reveals that these changes under red light are likely caused by the increased content of cellulase CSEA, specifically expressed cell wall synthetic proteins, and up-regulated auxin transporter ABCB19 in red light. Additionally, blue light is found to promote the expression of proteins constituting photosystem II, such as PsbP and PsbQ, more than red light. These findings provide new insights into the growth and development of moso bamboo seedlings regulated by different light qualities.
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Affiliation(s)
- Ke Li
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Luyao Ji
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yaoyun Xing
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zecheng Zuo
- Jilin Province Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China
| | - Li Zhang
- Jilin Province Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China
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