Response of leaf color and the expression of photoreceptor genes of Camellia sinensis cv. Huangjinya to different light quality conditions

Tian, Yueyue; Wang, Hanyue; Sun, Ping; Fan, Yanting; Qiao, Ming; Zhang, Lixia; Zhang, Zhengqun

doi:10.1016/j.scienta.2019.03.032

Cited by 36 publications

(17 citation statements)

References 43 publications

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“…In this study, although RL produced the tallest shoots in Huajin, the proliferation coefficient was the lowest, and the internodes of the plants showed progressive browning during later stages of growth, followed by plant death. Similar results were reported for lettuce (Yanagi, Okamoto & Takita, 1996), banana (Aksenova et al, 1994), Camellia sinensis Huangjinya (Tian et al, 2019), and Plectranthus amboinicus (Silva et al, 2017), the reason being that light is perceived by plants through photoreceptors, such as phytochromes and cryptochromes, which generate a series of specific physiological responses (Taiz et al, 2017). The production of kaempferol derivatives by plants in response to RL might support apical dominance, thus causing plant stem elongation (Chée, 1986).…”

Section: Biomass Parameter Response Of C Oleifera Huajin To Light Qusupporting

confidence: 70%

“…However, different plants have different responses to light quality. The leaf area of C. sinensis Huangjinya was found to be the largest under BL (Tian et al, 2019). In tissue cultured seedlings of Plectranthus amboinicus, the leaf area was the highest under RL and red:blue (1:1) treatments, whereas it was the lowest under BL (Silva et al, 2017).…”

Section: Biomass Parameter Response Of C Oleifera Huajin To Light Qumentioning

confidence: 96%

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Light quality affects the proliferation of in vitro cultured plantlets of Camellia oleifera Huajin

Zeng

et al. 2020

PeerJ

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Background Camellia oleifera is an important oil-yielding woody plant native to China. Tea oil extracted from the seeds is rich in health-beneficial compounds. Huajin is a high-yielding elite variety of C. oleifera, with large fruits and remarkable resilience, widely cultivated in southern China; however, its seedling quality tends to be uneven. At present, techniques such as grafting, and cuttings are primarily adopted to propagate C. oleifera. These approaches are susceptible to environmental constraints owing to the long growth period, resulting in the lack of C. oleifera seedlings. Methods to make the cultivation more economical are warranted; this can be facilitated by tissue culture technology to provide good-quality seedlings in a short time. Methods In vitro cultured plantlets of C. oleifera Huajin were exposed to red light (RL), blue light (BL), red:blue light at a 4:1 ratio (R4:B1), and red:blue light at a 1:4 ratio (R1:B4); white light (WL) was used as the control treatment. To investigate the influence of light spectral quality on the proliferation coefficient, photosynthetic pigments, soluble proteins, plant height, leaf shape, Rubisco enzyme activity, and stomata and leaf anatomical features. Results The highest proliferation coefficient was observed under combined red and blue (4:1) light. In addition, this treatment resulted in the second highest chlorophyll content, the thickest palisade and spongy tissues, and consequently, the thickest leaves. The same treatment resulted in the second highest stomatal density, albeit concomitantly with the smallest average stomatal length and width. Discussion These results indicate that high-quality propagation of Huajin shoots can be achieved by culturing the plants in vitro under a combination of red and blue (4:1) lights. Previous studies have shown that red and blue lights improve rooting and transplanting rates of tissue culture seedlings. Hence, future research should focus on the effect of light quality on rooting and transplanting of tissue culture plantlets of Huajin and its specific molecular mechanisms.

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Section: Biomass Parameter Response Of C Oleifera Huajin To Light Qusupporting

confidence: 70%

Section: Biomass Parameter Response Of C Oleifera Huajin To Light Qumentioning

confidence: 96%

Light quality affects the proliferation of in vitro cultured plantlets of Camellia oleifera Huajin

Zeng

et al. 2020

PeerJ

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“…Oppositely, compared with the BL, chlorophyll content was higher in RL (Tian et al, 2019) of 'Huangjinya'…”

Section: Introductionmentioning

confidence: 89%

Responses of Secondary Metabolites and Transcriptomes in Tea Cultivar ‘Zhong Ming 6’ (Camellia Sinensis) under Blue Light and Red Light Journal Name: Plant Growth Regulation

Aktar

Zhang

Peng

et al. 2022

Preprint

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Light is one of the most prestigious environmental sign, which stimulates plant metabolite consequences. Zhong Ming 6 (ZM6) is a green tea (Camellia sinensis) cultivar with highly accumulating TGGP. Here, three kinds of supplemental light wavelengths including blue light (BL,200 µmol m−2 s−1), red light(RL,200 µmol m−2 s−1), and White Light (WL/CK, 200 µmol m−2 s−1) were applied to explore their effects on the transcriptomes and metabolomics of young shoots (one bud and two leaves) in tea plants. Interestingly, artificial BL and RL significantly affect the secondary metabolites and transcriptome factors of tea plants. Here, BL extensively dominated the multiple physiological actions with secondary metabolism. In addition, RL could induce plant growth, development, and photosynthesis. Thoroughly, the identification of eight structural genes and 34 transcription factors (TFs) signiଁcantly correlated with total catechin (TC) and anthocyanin. Due to the upregulations of the CsGSTF1 gene in the flavonoid biosynthesis pathway, anthocyanin production was maximum under BL. Then, CsMYB75, bHLH-MYC, and other R2R3-MYBs were highly upregulated in BL to increase the accumulation of TC and anthocyanins in tea plants. Again, the CsMYB4 gene was highly significant and positively correlated with TC and anthocyanin accumulation under RL. We indicated that BL is more feasible due to the number of functional metabolites (gallic acid, caffeine, TC, TGGP (1, 2, 6-tri-O-galloyl-β-D-glucopyranose), and anthocyanin) being supreme. For taste, quality, and dynamic indigenous mechanism of the tea plant, RL is also suitable that increase Chlorophyll content and tea yield.

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“…The determination of total chlorophyll and carotenoids contents were extracted and determined as previously described with some modifications ( Song et al, 2017 ; Tian et al, 2019 ); The ground samples (500 mg) were extracted by 25 ml 95% ethanol (v/v) in darkness for 24 h at room temperature. After that, the extract was filtered and brought up to 25 ml using 95% ethanol (v/v), and then added 300 μl extracting into a 96 well plate, the absorbance values were determined using an automatic microplate reader (Sunrise, TECAN, Switzerland), and test wavelength is 663, 645, and 470 nm, respectively.…”

Section: Methodsmentioning

confidence: 99%

A Comparative Metabolomic Analysis Reveals Difference Manufacture Suitability in “Yinghong 9” and “Huangyu” Teas (Camellia sinensis)

et al. 2021

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“Yinghong 9” is a widely cultivated large-leaf variety in South China, and the black tea made from it has a high aroma and strong sweet flavor. “Huangyu” is a light-sensitive tea variety with yellow leaves. It was cultivated from the bud-mutation of “Yinghong 9” and has a very low level of chlorophyll during young shoot development. Due to chlorophyll being involved in carbon fixation and assimilation, the changes in photosynthesis might potentially affect the accumulation of flavor metabolites, as well as the quality of “Huangyu” tea. Although “Huangyu” has a golden yellow color and high amino acid content, the mechanism underlying the formation of leaf color and drinking value remains unclear. The widely targeted metabolomics and GC-MS analysis were performed to reveal the differences of key metabolites in fresh and fermented leaves between “Yinghong 9” and “Huangyu.” The results showed that tea polyphenols, total chlorophyll, and carotenoids were more abundant in “Yinghong 9.” Targeted metabolomics analysis indicated that kaempferol-3-glycoside was more abundant in “Yinghong 9,” while “Huangyu” had a higher ratio of kaempferol-3-glucoside to kaempferol-3-galactoside. Compared with “Yinghong 9” fresh leaves, the contents of zeaxanthin and zeaxanthin palmitate were significantly higher in “Huangyu.” The contents of α-farnesene, β-cyclocitral, nerolidol, and trans-geranylacetone, which were from carotenoid degradation and involved in flowery-fruity-like flavor in “Huangyu” fermented leaves, were higher than those of “Yinghong 9.” Our results indicated that “Huangyu” was suitable for manufacturing non-fermented tea because of its yellow leaf and flowery-fruity-like compounds from carotenoid degradation.

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Response of leaf color and the expression of photoreceptor genes of Camellia sinensis cv. Huangjinya to different light quality conditions

Cited by 36 publications

References 43 publications

Light quality affects the proliferation of in vitro cultured plantlets of Camellia oleifera Huajin

Light quality affects the proliferation of in vitro cultured plantlets of Camellia oleifera Huajin

Responses of Secondary Metabolites and Transcriptomes in Tea Cultivar ‘Zhong Ming 6’ (Camellia Sinensis) under Blue Light and Red Light Journal Name: Plant Growth Regulation

A Comparative Metabolomic Analysis Reveals Difference Manufacture Suitability in “Yinghong 9” and “Huangyu” Teas (Camellia sinensis)

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