Effects of light quality on the chloroplastic ultrastructure and photosynthetic characteristics of cucumber seedlings

Su, Nana; Wu, Qi; Shen, Zhenguo; Xia, Kai; Chen, Jin

doi:10.1007/s10725-013-9883-7

Cited by 98 publications

(73 citation statements)

References 26 publications

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“…The present study showed that white light could significantly increase the growth and dry weight of Gynostemma pentaphyllum when compared with red, blue and green lights. This situation was exactly similar to that of cucumber seedlings (Su et al 2014), for white light contains broader light spectrum than color lights do and thus has a higher efficient physiological impact. However, each monochromatic light played its special role in regulating the growth of G. pentaphyllum.…”

Section: Discussionsupporting

confidence: 71%

Effects of light quality on growth, total gypenosides accumulation and photosynthesis in Gynostemma pentaphyllum

Peng

Wang

et al. 2017

Bot. Sci.

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Background: Gynostemma pentaphyllum is a kind of shade-tolerant plants. It can synthesize and accumulate gypenosides in large amounts. The gypenosides are a valuable medicine that against hypertension, hyperlipemia, obesity, neurological disorder, inflammation, immune-modulation, diabetes and tumours. Hypotheses: Light quality was proved to affect the growth and gypenosides accumulation obviously in G. pentaphyllum, and it affects the photosynthesis certainly. So, some relationships may exist among these parameters. Study site and dates: Experiments were carried out in the late May of 2014 at Jishou University, Hunan province, China. Methods: Measurements of growth features and photosynthesis as well as determination of total gypenosides were conducted in seedlings that planted under different light qualities, including white, red, blue and green light emitted by LED lamps. Results: Light quality had remarkable effects on plant growth, total gypenosides accumulation and photosynthesis. White light had significant effects on increases in biomass, stem diameter and newly sprouted leaves than homogeneous light did. Compared with blue and green light, white light presented a higher content of total gypenosides which was closest to that of red light, suggesting the effect of white light on gypenosides accumulation was involved in red light. The net photosynthetic rate under red light was higher than those under blue or green lights, but obviously lower than that under white light. Conclusions: It is suggested that the influence of light quality on growth and the accumulation of total gypenosides was associated with photosynthesis efficiency.

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Section: Discussionsupporting

confidence: 71%

Effects of light quality on growth, total gypenosides accumulation and photosynthesis in Gynostemma pentaphyllum

Peng

Wang

et al. 2017

Bot. Sci.

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“…For example, lettuce Lactuca sativa grown under broad spectrum light (blue-greenyellow-red) had a higher biomass compared to plants grown under green fluorescent light (500 to 600 nm), although there was no significant difference in chlorophyll content between the treatments (Kim et al 2004). Similarly, green and yellow treatments significantly impacted cucumber Cucumis sativus growth but not chlorophyll content when compared to a broad spectrum white light (Al-Wakeel & Hamed 1996, Su et al 2014. Another experiment suggests that yellow light suppresses chlorophyll and chloroplast formation in lettuce (Dougher & Bugbee 2001), which may have explained the inhibition of plant growth under yellow light.…”

Section: Adult Experimentsmentioning

confidence: 99%

“…Examples include the decrease in yarrow Achillea millefolium and cucumber seedling Cucumis sativus biomass in re sponse to blue light, as well as reduced rooting in yarrow and Phyllanthus tenellus (Su et al 2014, Alvarenga et al 2015. Often, there is variability among responses to light quality across the plant scale: for example, maximal photochemical efficiency and quantum yield of PSII of leaves growing under blue light was significantly higher than under control light, whilst biomass under blue light was significantly lower than under control light (Su et al 2014). Furthermore, responses are often species-specific; monochromatic blue light enhanced germination in orchids Cattleya walkeriana but not in Amaranthus caudatus seeds (Nowak et al 1996, Islam et al 1999 (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Asterisk: seagrass species. References: 1 (Kopsell & Sams 2013), 2 (Su et al 2014), 3 (Dougher & Bugbee 2001), 4 ), 5 (Alvarenga et al 2015, 6 (Drozdova et al 2001), 7 (Soong et al 2013), 8 (Islam et al 1999), 9 (Nowak et al 1996), 10 (Walck et al 2000, 11 (Luna et al 2004), 12 (Qi-He et al 2005, 13 (Victorio & Lage 2009), 14 (Guo et al 2011), 15 (Folta 2004, 16 (Baque et al 2011) Green light has been shown to induce rapid elongation of etiolated seedlings (that have negli gible chlorophyll) and is efficiently transmitted through the leaves as much as other visible wavelengths (Folta 2004, Folta & Maruhnich 2007. In aquatic, estuarine and marine ecosystems, a number of factors can drive strong shifts in light quality.…”

Section: Introductionmentioning

confidence: 99%

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Seagrass Halophila ovalis is affected by light quality across different life history stages

Strydom¹,

McMahon²,

Kendrick³

et al. 2017

Mar. Ecol. Prog. Ser.

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Seagrass meadows provide crucial ecosystem services to the coastal zone but are threatened globally. Seagrass loss to date has mainly been attributed to anthropogenic activities that reduce light quantity (amount of photosynthetic photon flux density), such as dredging, flooding and eutrophication. However, light quality (wavelengths of light within the visible spectrum) is also altered by these anthropogenic stressors. This study addressed the effect of light quality changes on seagrasses. Aquarium-based experiments were conducted to determine whether the seagrass Halophila ovalis (R.Br.) Hook f. responds to different light quality treatments. Separate experiments were performed in which adults, seeds or seedlings were subjected to monochromatic light treatments in the blue (peak λ = 451 nm), green (peak λ = 522 nm), yellow (peak λ = 596 nm) and red (peak λ = 673 nm) wavelengths with a control of full-spectrum light (λ = 400 − 700 nm, at 200 µmol photons m −2 s −1). This study is unique in that it measured seagrass responses to light across several plant scales (physiology, productivity, morphology and biomass) as well as across life-history stages (seeds, seedlings, adults and flowering). Adult plants responded differently to seeds and seedlings but were generally consistent with terrestrial angiosperms: blue light decreased below-ground productivity; green light influenced morphology (through increased rhizome internode length); red light enhanced seed germination and survival. The findings indicate that both natural and human-induced changes in light quality could significantly affect seagrass growth and reproduction. As a range of anthropogenic activities are currently contributing to the global losses of seagrasses, this research provides timely information on how light quality influences different seagrass life history stages.

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“…The Chl biosynthesis and/or degradation pathway influences Chl accumulation. Light induces the Chl biosynthesis pathway, and different spectrums influence the formation of photosynthetic pigments (Jilani et al, 1996;Hoober et al, 1999;Su et al, 2014). Blue light induces higher Chl a/b ratios (Rivkin, 1989;Demarsac et al, 1993;Chen et al, 2014;Hoffmann et al, 2015) and greater accumulations of Chl (Kurilčik et al, 2008;Poudel et al, 2008;Hoffmann et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of Light Quality on the Chlorophyll Degradation Pathway in Rice Seedling Leaves

Chen

Lin

Huang

et al. 2016

Not Bot Horti Agrobo

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The objective of this study was to investigate the dynamics of chlorophyll (Chl), biosynthetic intermediates (protoporphyrin IX, magnesium protoporphyrin IX, and protochlorophyllide), degradation intermediates [chlorophyllide (Chlide), pheophytin (Phe), and pheophorbide (Pho)], and carotenoids (Car) in leaves of rice seedlings. Two rice varieties, 'Taichung Shen 10' ('TCS10') and 'IR1552', were grown under different light quality conditions controlled by light emitting diodes (LED). Lighting treatments for rice seedlings were included by red (R), blue (B), green (G), and red + blue (RB), with fluorescent lighting (FL) as the control and photosynthetic photon flux density being set at 105 μmol m -2 s -1 . The results show that lower levels of Chl and Car in leaves were detected under G lighting, and light quality did not mediate porphyrins in biosynthetic pathways. Rice seedling leaves took Chl→Phe→Pho and Chl→Chlide→Pho as the major and minor degradation routes, respectively. Furthermore, higher Phe/Chlide ratios were observed under G and FL lighting conditions, indicating that green-enriched environments can up-regulate the minor degradation route in leaves.

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Effects of light quality on the chloroplastic ultrastructure and photosynthetic characteristics of cucumber seedlings

Cited by 98 publications

References 26 publications

Effects of light quality on growth, total gypenosides accumulation and photosynthesis in Gynostemma pentaphyllum

Effects of light quality on growth, total gypenosides accumulation and photosynthesis in Gynostemma pentaphyllum

Seagrass Halophila ovalis is affected by light quality across different life history stages

Effects of Light Quality on the Chlorophyll Degradation Pathway in Rice Seedling Leaves

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