Photosynthesis under artificial light: the shift in primary and secondary metabolism

Darkó, Éva; Heydarizadeh, Parisa; Schoefs, Benoı̂t; Sabzalian, Mohammad R.

doi:10.1098/rstb.2013.0243

Cited by 352 publications

(250 citation statements)

References 45 publications

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“…The power consumption of the MSDS was 100 W during the treatment. After the operation for 120 min, the NO 2 -concentration in the water increased from 0 to 85 mg/L, and the NO 3 -concentration increased from 18 to 96 mg/L. The performances of the rod-to-water electrode discharge treatment system 26,27 and the MSDS were summarized in Table 1.…”

Section: Preparation Of Plasma-treated Watermentioning

confidence: 99%

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Multi-spark discharge system for preparation of nutritious water

Nakaso

Harigai

Kusumawan

et al. 2018

AIP Conference Proceedings

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Abstract. The nitrogen compound concentration in water is increased by atmospheric-pressure plasma discharge treatment. A rod-to-water electrode discharge treatment system using plasma discharge has been developed by our group to obtain water with a high concentration of nitrogen compounds, and this plasma-treated water improves the growth of chrysanthemum roots. However, it is difficult to apply the system to the agriculture because the amount of treated water obtained by using the system too small. In this study, a multi-spark discharge system (MSDS) equipped multiple spark plugs is presented to obtain a large amount of plasma-treated water. The MSDS consisted of inexpensive parts in order to reduce the system introduction cost for agriculture. To suppress the temperature increase of the spark plugs, the 9 spark plugs were divided into 3 groups, which were discharged in order. The plasma-treated water with a NO 3 -concentration of 50 mg/L was prepared using the MSDS for 90 min, and the treatment efficiency was about 6 times higher than that of our previous system. It was confirmed that the NO 2 -, O 3 , and H 2 O 2 concentrations in the water were also increased by treating the water using the MSDS.

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Section: Preparation Of Plasma-treated Watermentioning

confidence: 99%

“…There are several techniques to promote plant growth 1 . In the control of light, effective lights for the photosynthesis of plants are provided efficiently 2,3 . In temperature control, the optimum temperature is maintained for plant growth 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Multi-spark discharge system for preparation of nutritious water

Nakaso

Harigai

Kusumawan

et al. 2018

AIP Conference Proceedings

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“…Plants grown under monochromatic red light exhibited elongated hypocotyls and cotyledons, a condition known to be phytochrome-dependent [19]. Blue light increased the ratio of chlorophyll a/b (chl a/b), affected plant photomorphogenesis, and promoted stomatal opening in plants [33][34][35].…”

Section: Red And/or Blue Lightmentioning

confidence: 99%

Effects of Light Quality on Growth and Phytonutrient Accumulation of Herbs under Controlled Environments

Dou

Niu²,

et al. 2017

Horticulturae

142

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Abstract:In recent years, consumption of herb products has increased in daily diets, contributing to the prevention of cardiovascular diseases, chronic diseases, and certain types of cancer owing to high concentrations of phytonutrients such as essential oils and phenolic compounds. To meet the increasing demand for high quality herbs, controlled environment agriculture is an alternative and a supplement to field production. Light is one of the most important environmental factors influencing herb quality including phytonutrient content, in addition to effects on growth and development. The recent development and adoption of light-emitting diodes provides opportunities for targeted regulation of growth and phytonutrient accumulation by herbs to optimize productivity and quality under controlled environments. For most herb species, red light supplemented with blue light significantly increased plant yield. However, plant yield decreased when the blue light proportion (BP) reached a threshold, which varied among species. Research has also shown that red, blue, and ultraviolet (UV) light enhanced the concentration of essential oils and phenolic compounds in various herbs and improved antioxidant capacities of herbs compared with white light or sunlight, yet these improvement effects varied among species, compounds, and light treatments. In addition to red and blue light, other light spectra within the photosynthetically active region-such as cyan, green, yellow, orange, and far-red light-are absorbed by photosynthetic pigments and utilized in leaves. However, only a few selected ranges of light spectra have been investigated, and the effects of light quality (spectrum distribution of light sources) on herb production are not fully understood. This paper reviews how light quality affected the growth and phytonutrient accumulation of both culinary and medicinal herbs under controlled environments, and discusses future research opportunities to produce high quantity and quality herbs.

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“…Greater photosynthetic intensity is usually reflected by an increase in the dry weight in herbage (Darko et al, 2014). When plants are grown in a mixture of red and blue light, the yield of dry weight is also greater than when plants are grown in red light only (Wang et al, 2009).…”

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confidence: 99%

The Effect of Different Doses of Blue Light on the Biometric Traits and Photosynthesis of Dill Plants

Frąszczak

2016

Not Bot Horti Agrobo

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The supplementation of blue light to red light enhanced plant growth compared with the use of red alone. The aim of the study was to determine the effect of different doses of blue light on the biometric traits and photosynthesis of dill plants. The plants were grown in pots in a growth chamber. They were grown in red light (100 μmol m -2 s -1 ) and blue light (from 10 to 50 μmol m -2 s -1 ) in five combinations. Light emitting diode modules were the source of light. The plants were evaluated every 7 days during vegetation, for the first time -seven days after germination and later on the 14 th , 21st and 28 th day after germination. The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants. It significantly inhibited the elongation growth of the plants and negatively affected the increase in fresh weight. A small dose of blue light (20%) had positive effect on the plants' area. The research did not reveal a simple relationship between the amount of blue light and dry weight yield. The value of physiological indexes depended both on the combination and measurement time. The plants from the combination with 30% blue light were characterised by the greatest photosynthesis intensity. An effective share of blue light in the spectrum may range from 10 to 30% in relation to red light and depends on the plant's development phase and on the result we want to achieve in the cultivation of plants.

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Photosynthesis under artificial light: the shift in primary and secondary metabolism

Cited by 352 publications

References 45 publications

Multi-spark discharge system for preparation of nutritious water

Multi-spark discharge system for preparation of nutritious water

Effects of Light Quality on Growth and Phytonutrient Accumulation of Herbs under Controlled Environments

The Effect of Different Doses of Blue Light on the Biometric Traits and Photosynthesis of Dill Plants

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