Growth and morphogenesis of encapsulated strawberry shoot tips under mixed LEDs

Hung, Cao Dinh; Hong, Chang–Hee; Jung, Hyun-Bok; Kim, Seon-Ki; Ket, Nguyen Van; Nam, Min-Woo; Choi, Dong Geun; Lee, Hye-In

doi:10.1016/j.scienta.2015.08.016

Cited by 36 publications

(15 citation statements)

References 28 publications

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“…Furthermore, high proportions of red and blue light also benefit the development of stomata and photosynthetic components (Figures 3 and 4), which improve photosynthesis and thus seedling quality. The results are in agreement with those in previous studies [10, 33, 53, 54]. However, some studies reported contrary results [24, 29, 55].…”

Section: Discussionsupporting

confidence: 93%

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

Liu

Ren

Jeong

2019

BioMed Research International

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Adenophora triphylla(Thunb.) A.DC., a well-known herbaceous medicinal species, has been reported to protect against human obesity, cancer, and inflammation. Supplementary lighting is a practical strategy to improve crop quality, especially at a propagation stage. However, there has been no study available on the optimal supplementary light source for the commercial production ofA. triphyllaseedlings. In this study, plug seedlings were cultivated in a greenhouse for four weeks under an average daily light intensity of 490μmol·m−2·s−1PPFD coming from the sun and a supplemental lighting (16 h per day) at 120μmol·m−2·s−1PPFD provided by high pressure sodium (HPS), metal halide (MH), far-red (FR) light, white LED (red: green: blue = 2:4:3, LED-w), or mixed (red: green: blue = 4:1:4) LED (LED-mix). The results showed that LED-mix, with a higher percentage of red and blue light, substantially promoted seedling growth compared to other treatments by increasing stem diameter, biomass, specific leaf weight, and root to shoot ratio. The LED-mix also promoted accumulation of soluble sugar, starch, and chlorophyll in the tissue and increased contents of total phenols and flavonoids. Moreover, stomata density and pore area per leaf area under the LED-mix were remarkably greater than those under other treatments. Furthermore, the Western blot analysis revealed that the expression of photosynthetic protein, D1, was notably enhanced by the LED-mix as compared with other light sources. In addition, the LED-mix alleviated the oxidative damage of seedlings by improving enzymatic and nonenzymatic antioxidant systems. Collectively, these results suggest that the LED-mix was the optimal supplementary light source for the production of highest qualityA. triphyllaseedlings.

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Section: Discussionsupporting

confidence: 93%

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

Liu

Ren

Jeong

2019

BioMed Research International

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“…These authors reported that LEDs are an effective alternative, especially during the in vitro regeneration of shoots. According to Hung et al (2015), the red/blue ratio of LEDs significantly influenced the in vitro response of Brassica chinensis seedlings, where red LEDs strongly stimulated shoot production per explant. In this context, Bugbee (2016) considered the LED light source advantageous for micropropagation as an alternative for replacement of fluorescent lamps.…”

Section: Discussionmentioning

confidence: 99%

LIGHT QUALITY IN THE IN VITRO INTRODUCTION OF Corymbia HYBRID CLONES

et al. 2018

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Micropropagation via axillary bud proliferation is recommended for rejuvenation or reinvigoration of selected clones, as well as for improving clonal seedlings rooting. The success of a micropropagation protocol depends on the in vitro introduction, since following phases, multiplication, elongation, and rooting can only take place once the aseptic crop with vegetative vigor has been established. This study aims to assess the effect of light on the in vitro introduction of hybrid clones of Corymbia torelliana x C. citriodora e Corymbia citriodora x C. torelliana by the micropropagation technique through proliferation by axillary buds. The mini-stumps, suppliers of explants for in vitro introduction, were conducted in semi-hydroclonal mini-clonal hedge. Nodal segments from three Corymbia torelliana x C. citriodora (TC01, TC02 e TC03) clones and one Corymbia citriodora x C. torelliana (CT01) clone were collected, disinfested and inoculated in JADS culture medium, in order to compare the effects of light quality from a dark/fluorescent lamp, a fluorescent lamp, and white and red/blue LEDs. At 30 days after inoculation, the following characteristics were evaluated: average contamination percentage, oxidation, non-reactive explants, shoot length and average number of shoots per explant greater than 0.5 cm. Gathered data showed that the use of red/blue LED light source obtained the best results in all assessed characteristics in the in vitro introduction.

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“…In addition, several studies have shown positive effects of LED lamps on plant development during in vitro culture of different species such as Fragaria × ananassa [5,6], Musa spp. [7], Solanum tuberosum [8], Chrysanthemum [9,10], Vitis riparia × V. vinifera [11], Brassica napus [12], Populus euroamericana [13], and Saccharum spp.…”

Section: Introductionmentioning

confidence: 99%

Light‐Emitting Diodes: Progress in Plant Micropropagation

Bello-Bello¹,

Pérez-Sato²,

Cruz‐Cruz³

et al. 2017

Chlorophyll

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In commercial micropropagation laboratories, the light source is one of the most important factors controlling plant morphogenesis and metabolism of plant cells and tissue and organ cultures. Lamp manufacturers have begun to rate lamps specifically for plant needs. The traditional light source used for in vitro propagation is fluorescent lamps (FLs). However, power consumption in FL use is expensive and produces a wide range of wavelengths (350-750 nm) unnecessary for plant development. Light-emitting diodes (LEDs) have recently emerged as an alternative for commercial micropropagation. The flexibility of matching LED wavelengths to plant photoreceptors may provide more optimal production, influencing plant morphology and chlorophyll content. Although previous reports have confirmed physiological effects of LED light quality on morphogenesis and growth of several plantlets in vitro, these study results showed that LED light is more suitable for plant morphogenesis and growth than FLs. However, the responses vary according to plant species. This chapter describes the applications and benefits of LED lamps on chlorophyll in plant micropropagation. Two study cases are exposed, Anthurium (Anthurium andreanum) and moth orchids (Phalaenopsisis sp.), both species with economic importance as ornamental plants, where LEDs have a positive effect on in vitro development and chlorophyll content.

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Growth and morphogenesis of encapsulated strawberry shoot tips under mixed LEDs

Cited by 36 publications

References 28 publications

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

Supplementary Light Source Affects Growth, Metabolism, and Physiology ofAdenophora triphylla(Thunb.) A.DC. Seedlings

LIGHT QUALITY IN THE IN VITRO INTRODUCTION OF Corymbia HYBRID CLONES

Light‐Emitting Diodes: Progress in Plant Micropropagation

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