Photosynthetic Characteristics of Rice Leaves Grown under Red Light with or without Supplemental Blue Light

Matsuda, Ryotaro; Ohashi-Kaneko, Keiko; Fujiwara, Kazuhiro; Gotō, Eiji; Kurata, K.

doi:10.1093/pcp/pch203

Cited by 217 publications

(168 citation statements)

References 26 publications

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“…Photomorphogenetic responses are sensitive to both PAR and far-red (700-750 nm) wavelengths, depending on the photoreceptors involved (Whitelam and Halliday, 2007). Although a distinction is often made between 'assimilation light' for biomass production and 'signalling light' for control of morphology and development, signalling light can also affect biomass production: blue light can increase the photosynthetic capacity per area of leaf (Matsuda et al, 2004;Hogewoning et al, 2010b) and light intercepting area is an important determinant of crop photosynthesis (e.g., Poorter and Nagel, 2000), which may act via morphology, leaf orientation and growth direction.…”

Section: Introductionmentioning

confidence: 99%

Finding the Optimal Growth-Light Spectrum for Greenhouse Crops

Hogewoning¹,

Trouwborst²,

Meinen³

et al. 2012

Acta Hortic.

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Especially in ) supplemented with 50% HPS, light emitting diodes LEDs (red/blue), or ASL. The 100% ASL-grown plants produced 32-45% more dry weight, due to a more efficient light interception. As ASL lamps are not energyefficient enough for commercial production we tried to simplify the solar spectrum while retaining enhanced crop productivity in greenhouses. Red/blue/far-red LEDs, at a ratio inducing the same phytochrome photostationary state (PSS) as natural sunlight, and sulphur-plasma lamps, emitting a continuous spectrum in the PARregion, were tested and compared with supplemental red/blue LEDs, HPS and ASL in a greenhouse experiment. Red/blue/far-red LEDs resulted in a visual appearance similar to the ASL-plants, while red/blue LEDs produced the most compact morphology. Red/blue/far-red LEDs enhanced dry weight for cucumber (+21%) and tomato (+15%) compared with HPS. Dry weight and compactness were intermediate for sulphur-plasma. The differences were attributable to effects of leaf orientation and positioning on light interception, and not to photosynthesis per unit leaf area. The PSS appears to be a key-factor to control crop morphology, providing a tool to induce 'sunlight' crop characteristics to enhance productivity.

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Section: Introductionmentioning

confidence: 99%

Finding the Optimal Growth-Light Spectrum for Greenhouse Crops

Hogewoning¹,

Trouwborst²,

Meinen³

et al. 2012

Acta Hortic.

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“…Supplemental blue light with red light significantly increased the photosynthetic rate when compared to red light only [27,28]. We observed that the CO 2 assimilation rate (Pn) was the greatest when there were large amounts of red and blue light, i.e.…”

Section: Discussionmentioning

confidence: 81%

“…The plants grown in that combination were also characterised by the high content of Mg, Fe and S and low content of Zn and Cu. Matsuda et al [27] found that rice plants grown under red light in combination with blue light had higher content of total nitrogen (N) in leaves than those grown under red light alone. They also observed a positive correlation between the content of nitrogen (N) in leaves and stomatal conductance and the dynamics of photosynthesis.…”

Section: Discussionmentioning

confidence: 99%

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The effect of radiation of LED modules on the growth of dill (Anethum graveolens L.)

Frąszczak¹,

Gąsecka

Golcz

et al. 2016

Open Life Sciences

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Light quality is thought to affect the growth and development of plants. We examined how light influences the growth and content of some chemical compounds in dill (Anethum graveolens L.). The plants were grown under different light quality. The share of orange and green light in the spectrum was constant and amounted to 10% for either colour. In the first combination (A, 70/10), there was 70% of red light and 10% of blue light. Other combinations had the following proportions: B 60/20, C 50/30, D 40/40 and E 30/50 of red and blue light. The PPFD was about 155 μmol m-2 s-1. Blue light inhibited the elongation growth as well as leaf area. It had positive influence on the accumulation of dry mass, glucose and fructose in the herb. In the combinations with higher percentage of red light the plants were characterised by higher content of essential oils, macronutrients and zinc. To sum up, we can say that the proportion of red and blue light has significant influence on the morphological qualities, chemical composition and dynamics of photosynthesis in these plants. On the other hand, the selection of spectral composition of LEDs will depend on the result we want to achieve.

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“…A concentração de pigmentos nas folhas e a integridade da membrana são cruciais para a manutenção da A em plantas (Matsuda et al, 2004). Redução na concentração de pigmentos nas folhas causada por vários patógenos como Exsorohilum turcicum em milho (Chauhan et al, 1997) e Bipolaris sorokiniana em Poa pratiensis (Hodges e Campbell, 1999) ocasionaram redução na taxa fotossintética.…”

Section: Introductionunclassified

Capacidade fotossintética de plantas de algodoeiro infectadas por ramulose e supridas com silício

et al. 2014

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ResumoNas plantas atacadas por patógenos ocorrem danos nas células do mesofilo, colonização dos espaços intra e intercelulares e fechamento de estômatos, afetando a transpiração, influxo do CO 2 e taxa fotossintética. O uso de silício (Si) é importante para reduzir a intensidade de inúmeras doenças em várias espécies de plantas, além de ter um efeito positivo sobre a capacidade fotossintética. Objetivou-se com este estudo investigar o efeito do Si sobre a capacidade fotossintética de plantas de algodoeiro das cultivares BRS Araçá e FM 993 infectadas por Colletotrichum gossypii var. cephalosporioides supridas (+Si) ou não (-Si) com Si. Avaliaram-se as variáveis de trocas gasosas: taxa de assimilação líquida de carbono (A), condutância estomática (g s ), transpiração (E), razão entre a concentração interna e ambiente de CO 2 (C i /C a ), a eficiência instantânea no uso da água (A/E) e a concentração de pigmentos. Houve redução de A, g s , fixação de carbono, concentrações de clorofila a (cl a ), clorofila b (cl b ) e carotenoides, matéria seca total (MST) e aumento na E e na A/E. Com o fornecimento de Si, as plantas das duas cultivares de algodoeiro aumentaram a A devido ao aumento na g s e na fixação de CO 2 , além de no uso mais eficiente da água. O suprimento de Si aumentou as concentrações de cl a , cl b e carotenoides e MST nas duas cultivares. O Si afetou a fisiologia das plantas de algodoeiro infectadas por C. gossypii var. cephalosporioides, aumentando a resistência à ramulose devido a incrementos na capacidade fotossintética, na concentração de pigmentos e no acúmulo de biomassa.Palavras-chave: Colletotrichum gossypii var. cephalosporioides, fotossíntese, trocas gasosas. Photosynthetic capacity of cotton boll rot infected plants and supplied with silicon AbstractIn plants attacked by pathogens, occurring cell damage of the mesophyll, colonization of intra and intercellular spaces and closing of stomata, affecting perspiration, influx of CO 2 and the photosynthetic rate. The use of Silicon (Si) is important to reduce the intensity of numerous diseases in several species of plants, as well as having a positive effect on the photosynthetic capacity of plants. The objective of this study, was to investigate the effect of Si on the photosynthetic capacity of cotton plants of cultivars BRS Araçá and FM 993 infected by Colletotrichum gossypii var. cephalosporioides and supplied with (+Si) or not (-Si) silicon. Been evaluated variables of gas exchange: carbon assimilation rate (A), stomatal conductance (g s ), transpiration (E), ratio between the concentration and CO 2 environment internal (C i /C a ), efficiency of water use (A/E) and pigment concentration. There were reduction of A, the gs, carbon fixation, chlorophyll a concentrations (cl a ), chlorophyll b (cl b ) and carotenoids, total dry matter (MST) and increasing of E. The supply of the two cotton cultivars due to increase in g s and CO 2 fixation. The supply increased concentrations of cl a cl b , and carotenoids and MST in both cultivars. Therefore, th...

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Photosynthetic Characteristics of Rice Leaves Grown under Red Light with or without Supplemental Blue Light

Cited by 217 publications

References 26 publications

Finding the Optimal Growth-Light Spectrum for Greenhouse Crops

Finding the Optimal Growth-Light Spectrum for Greenhouse Crops

The effect of radiation of LED modules on the growth of dill (Anethum graveolens L.)

Capacidade fotossintética de plantas de algodoeiro infectadas por ramulose e supridas com silício

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