Metabolomics analysis reveals the metabolic and functional roles of flavonoids in light-sensitive tea leaves

Zhang, Qunfeng; Liu, Meiya; Ruan, Jianyun

doi:10.1186/s12870-017-1012-8

Cited by 110 publications

(72 citation statements)

References 45 publications

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“…As a signal molecule, light controls hexoses and circadian clocks, and it has been shown to affect lignin synthesis in Arabidopsis at the transcriptional level (Rogers et al, 2005). Zhang et al (2017) reported that exposure to light activated the phenylpropanoid metabolic pathway in plants and, consequently, lignin, tea catechin, and anthocyanin anabolism were strengthened.…”

Section: Discussionmentioning

confidence: 99%

Response of Fruit Bagging to Lignin Biosynthesis and Expression of Related Genes in Fruit Peel of Sand Pear (Pyrus pyrifolia Nakai) cv. Cuiguan

Shi¹,

Wang²,

Zhang³

et al. 2019

horts

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This study explored the effects of different colored bags (blue, green, white, yellow, orange, and red) on russet deposition on the peel of semi-russet ‘Cuiguan’ pears 10 days after full bloom (DAFB). The process of russeting of the peel and structure of the cork layer were characterized by microscopy and scanning electron microscopy (SEM), followed by the detection of lignin and the activity of enzymes involved in lignin synthesis. The expression of cinnamate-4-hydroxylase, 4-coumarate:coenzyme A ligase, cinnamyl alcohol dehydrogenase, cinnamoyl-CoA reductase, and peroxidase, which were related to phenylalanine ammonia-lyase, was determined via real-time quantitative polymerase chain reaction. Russeting of the outer peel of ‘Cuiguan’ pear accumulated rapidly at 80 DAFB, and a positive relationship between the russet index and lignin content was observed. Red and infrared (IR) ray, partial far-IR light (600–800 nm), and ultraviolet-A light (350–400 nm) promoted russeting in ‘Cuiguan’ pear peel, whereas green light decreased russeting, the russet index, enzymatic activities, and the expression levels of enzymes involved in lignin synthesis. Values of all these factors were higher for ‘Cuiguan’ pears in red bags than for those in bags of other colors. These findings suggested that spectral components affected the synthesis of lignin and the formation of fruit russet. Storage in green bags reduced russeting and improved fruit appearance.

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Section: Discussionmentioning

confidence: 99%

Response of Fruit Bagging to Lignin Biosynthesis and Expression of Related Genes in Fruit Peel of Sand Pear (Pyrus pyrifolia Nakai) cv. Cuiguan

Shi¹,

Wang²,

Zhang³

et al. 2019

horts

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“…Zhang et al[81] and Kc et al[43]. The light red, blue, yellow and grey colors indicate upregulated, down-regulated, no response and no identified metabolites in metabolome, respectively.…”

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confidence: 99%

Metabolic alterations provide insights into Stylosanthes roots responding to phosphorus deficiency

Luo

Liu

Zhang

et al. 2019

Preprint

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Background: Phosphorus (P) deficiency is one of the major constraints limiting plant growth, especially in acid soils. Stylosanthes (stylo) is a pioneer tropical legume with excellent adaptability to low P stress, but its underlying mechanisms remain largely unknown. Results: In this study, the physiological, molecular and metabolic changes in stylo responding to phosphate (Pi) starvation were investigated. Under low P condition, the root growth in stylo was significantly enhanced, which was accompanied with up-regulation of expansin genes participating in cell wall loosening. Metabolic profiling analysis showed that a total of 256 metabolites with differential accumulation were identified in stylo roots responding to P deficiency, which mainly include flavonoids, sugars, nucleotides, amino acids, phenylpropanoids and phenylamides. P deficiency led to significant reduction in the accumulation of phosphorylated metabolites (e.g., P-containing sugars, nucleotides and cholines), suggesting that internal P utilization was enhanced in stylo roots. However, flavonoid metabolites, such as kaempferol, daidzein and their glycoside derivatives, were significantly increased in P-deficient stylo roots. Furthermore, the transcripts of various genes involved in flavonoids synthesis were found to be up-regulated by Pi starvation in stylo roots. In addition, the abundance of phenolic acids and phenylamides was significantly increased in stylo roots during P deficiency. The enhanced accumulation of the metabolites in stylo roots, such as flavonoids, phenolic acids and phenylamides, might facilitate P solubilization and cooperate with beneficial microorganisms in rhizosphere, and thus contributing to P acquisition and utilization in stylo. Conclusions: These results suggest that stylo plants cope with P deficiency by modulating root morphology, scavenging internal Pi from phosphorylated metabolites and enhancing accumulation of flavonoids, phenolic acids and phenylamides. This study provides valuable insights into the complex responses and adaptive mechanisms of stylo to P deficiency.

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“…This decrease of amino acids in chlorotic tissue can explain an increase in reflectance at 280 nm of barley leaves incubated on 80 g NaCl/l phytoagar after four and five days. Previous studies with chlorotic tea leaves have shown that a number of metabolites belonging to the flavonoid metabolism were decreased in chlorotic tea leaves [33]. A decrease of flavonoids in chlorotic tissue can additionally contribute to an increased reflectance from 240-270 nm but also from 310-370 nm where flavonols and flavones (most common class of flavonoids) feature absorption maxima.…”

Section: Discussionmentioning

confidence: 97%

Extending Hyperspectral Imaging for Plant Phenotyping to the UV-Range

Brugger

Behmann

Paulus³

et al. 2019

Remote Sensing

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Previous plant phenotyping studies have focused on the visible (VIS, 400–700 nm), near-infrared (NIR, 700–1000 nm) and short-wave infrared (SWIR, 1000–2500 nm) range. The ultraviolet range (UV, 200–380 nm) has not yet been used in plant phenotyping even though a number of plant molecules like flavones and phenol feature absorption maxima in this range. In this study an imaging UV line scanner in the range of 250–430 nm is introduced to investigate crop plants for plant phenotyping. Observing plants in the UV-range can provide information about important changes of plant substances. To record reliable and reproducible time series results, measurement conditions were defined that exclude phototoxic effects of UV-illumination in the plant tissue. The measurement quality of the UV-camera has been assessed by comparing it to a non-imaging UV-spectrometer by measuring six different plant-based substances. Given the findings of these preliminary studies, an experiment has been defined and performed monitoring the stress response of barley leaves to salt stress. The aim was to visualize the effects of abiotic stress within the UV-range to provide new insights into the stress response of plants. Our study demonstrated the first use of a hyperspectral sensor in the UV-range for stress detection in plant phenotyping.

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Metabolomics analysis reveals the metabolic and functional roles of flavonoids in light-sensitive tea leaves

Cited by 110 publications

References 45 publications

Response of Fruit Bagging to Lignin Biosynthesis and Expression of Related Genes in Fruit Peel of Sand Pear (Pyrus pyrifolia Nakai) cv. Cuiguan

Response of Fruit Bagging to Lignin Biosynthesis and Expression of Related Genes in Fruit Peel of Sand Pear (Pyrus pyrifolia Nakai) cv. Cuiguan

Metabolic alterations provide insights into Stylosanthes roots responding to phosphorus deficiency

Extending Hyperspectral Imaging for Plant Phenotyping to the UV-Range

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