Effects of pruning on mineral nutrients and untargeted metabolites in fresh leaves of Camellia sinensis cv. Shuixian

Liu, Yang; Tian, Jing; Liu, Bei; Zhuo, Zuopin; CHEN, SHI; Xu, Ruineng; Xu, Maoxing; Liu, Baoshun; Ye, Jianghua; Sun, Lili; Liao, Hong

doi:10.3389/fpls.2022.1016511

Cited by 5 publications

(4 citation statements)

References 46 publications

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“…Livigni et al (2019) also found that Mg promoted plant growth, but excessive Mg was detrimental to the synthesis of alkaloids, terpenoids and secondary phenylene metabolites. Liu et al (2022) also found that secondary metabolites in tea trees increased when Mg content was low in the external environment. In this study, KEEG pathway enrichment was further performed on 21 characteristic metabolites whose content decreased in tea leaves with increased Mg concentrations, and the results showed (Figure 5F) that 21 characteristic metabolites were enriched into 28 metabolic pathways, and 11 metabolic pathways reached a significant level (p < 0.05).…”

Section: Screening Of Characteristic Metabolites From Key Metabolites...mentioning

confidence: 86%

“…Increasing Mg supply in crops planted in Mgdeficient areas tended to improve crop quality, particularly when quality formation depended on Mg-driven photosynthesis and assimilated transport within plants, while excessive amounts of Mg did not improve yield and quality (Gerendaś and Führs, 2013). For tea trees, Mg is extremely important for their growth, and the most significant change in the element content of tea leaves before and after pruning was Mg (Liu et al, 2022). Secondly, Mg could improve the photosynthetic capacity of tea trees, promote tea tree growth and increase tea yield (Li et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Study on the effect of magnesium on leaf metabolites, growth and quality of tea tree

Zhang,

Wang

et al. 2023

Front. Plant Sci.

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Magnesium (Mg) is one of the essential elements for the growth of tea trees. In this study, we investigated changes in metabolites, photosynthetic fluorescence parameters and quality indexes of tea leaves under different concentrations of magnesium treatment, and the results showed that there were no significant differences in the quantity and total content of metabolites in tea leaves under different Mg concentrations. The results of volcano map analysis showed that the content of 235 metabolites in tea leaves showed an increasing trend and the content of 243 metabolites showed a decreasing trend with the increase of Mg concentration. The results of the combined analysis of the OPLS-DA model and bubble map showed that 45 characteristic metabolites were screened at different concentrations of Mg. Among these, the content of 24 characteristic metabolites showed an increasing trend and 21 characteristic metabolites showed a decreasing trend with the increase of Mg concentrations. The results of KEEG pathway enrichment showed that 24 characteristic metabolites with a upward trend were significantly enriched in saccharides metabolism, nucleic acid metabolism and vitamin metabolism, while the 21 characteristic metabolites with a downward trend were enriched in the synthesis of plant secondary metabolites, phenylpropanoid biosynthesis, biosynthesis of terpenoids, synthesis and metabolism of alkaloids, and synthesis and metabolism of amino acids. It can be inferred that Mg regulation was beneficial to enhance the photosynthetic capacity of tea trees, improve the accumulation and metabolism of carbohydrate substances in tea trees, and thus promoted the growth of tea trees, but was not conducive to the synthesis of secondary metabolites and amino acids related to tea quality. The results of photosynthetic fluorescence parameters and quality indexes of the tea tree confirmed the conclusion predicted by metabolomics. This study provided a reference for regulating of the growth and quality of tea trees with Mg fertilizer in tea plantations.

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Section: Screening Of Characteristic Metabolites From Key Metabolites...mentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Study on the effect of magnesium on leaf metabolites, growth and quality of tea tree

Zhang,

Wang

et al. 2023

Front. Plant Sci.

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“…Y. Liu et al (2022) state that leaf pruning in tea (young leaf pruning) prevents phosphorus distribution from older to younger leaves via phloem connections because the young leaf has been removed. Meanwhile, in the current study, old (mature) leaves were pruned, and other plant organs covered the leaves, so the distribution of P leaf can be transported from old to young leaf.…”

Section: Nutrient Leaf and Auxin Valuementioning

confidence: 99%

Effect of Leaf Pruning and Additional Fertilizer on Growth and Young Pods Yield of Winged Beans

Tustiyani,

Melati,

Arifin Aziz

et al. 2024

JTAS

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Winged bean (Psophocarpus tetragonolobus L.) exhibits luxuriant foliage, making leaf pruning essential to enhance sunlight interception. Additionally, supplementing with additional fertilizer helps offset the impact of gradual harvesting. Therefore, this research aimed to determine the effect of leaf pruning and additional fertilizer on the growth and yield parameter of winged beans in the Institut Pertanian Bogor (IPB) experimental station at Leuwikopo, IPB University, Bogor, Indonesia. A randomized complete block design was used with two factors and three replications, namely leaf pruning intensities (0, 15, and 30% leaf pruning) and rates of additional fertilizer (0, 6.25, 12.5, and 18.5 g NPK 16-16-16/plant). The observed variables were plant height, leaf number, root length, leaf nutrient, auxin content, nutrient uptake, and young pods yield. The findings revealed that the interaction of pruning intensities and additional fertilizer rates significantly influenced leaf number and root length. Specifically, plants receiving a treatment combination without pruning and 6.25 g of additional fertilizer/plant exhibited the highest leaf number. In contrast, those subjected to 15% leaf pruning showed the greatest root length. Leaf nutrient levels, auxin content, and nutrient uptake exhibited noticeable improved with the addition of fertilizer. Meanwhile, a higher phosphorus and organic carbon content was observed in the 15% pruning treatment, and the young pods yield were not affected because the Fairuz variety reached its potential yield. Based on the results, the most recommended treatment is a combination without leaf pruning, supplemented with 6.25 g of additional fertilizer/plant.

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“…The Mg content in tea leaves changes significantly under the interference of external factors. For example, Mg content in tea leaves increased significantly after pruning, and the yield of tea trees in the second year after pruning was higher than that of unpruned tea trees [18]. It can therefore be seen that Mg is extremely important in the growth of tea trees.…”

Section: Introductionmentioning

confidence: 96%

Effects of Magnesium on Transcriptome and Physicochemical Index of Tea Leaves

Zhang

Wang

et al. 2023

Plants

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Magnesium (Mg) is one of the essential elements for the growth of tea tree and is extremely important for its development. In this study, we investigated the effect of Mg on the transcriptome and physicochemical indexes of tea leaves, and the results showed that Mg could significantly affect the gene expression of tea leaves. The results of Orthogonal Partial Least-Squares Discriminant Analysis (OPLS-DA) model analysis showed that a total of 300 key genes (Variable Importance for the Projection, VIP > 1) were screened under different concentrations of Mg treatment, among which 140 genes were up-regulated and 160 genes were down-regulated. The bubble map was used to screen the characteristic genes from the above key genes, and a total of 121 representative characteristic genes were obtained, mainly involving 9 metabolic pathways. Among them, gene expression of three metabolic pathways, including porphyrin metabolism, alpha-linolenic acid metabolism and photosynthesis, showed an increasing trend with the increase of Mg concentration, while gene expression of four metabolic pathways, including biosynthesis of secondary metabolites, anthocyanin biosynthesis, ABC transporters, pentose and glucuronate interconversions, showed a decreasing trend. The results of physiological index analysis showed that with the increase of Mg concentration, the photosynthetic physiological index, theanine and soluble sugar content of tea leaves showed an increasing trend, while the content of tea polyphenol, flavone and caffeine showed a decreasing trend. The results of TOPSIS analysis showed that the physiological indexes of tea trees most affected by Mg were chlorophyll, tea polyphenols and flavonoids, while the metabolic pathways most affected by Mg on gene expression were the metabolic pathways and biosynthesis of secondary metabolites. It can be seen that the effects of Mg on tea tree were mainly related to photosynthesis and synthesis of secondary metabolites, and Mg was beneficial for improving the photosynthetic capacity of tea tree, enhancing the accumulation of primary metabolites, and thus increasing tea yield. However, Mg was not conducive to the synthesis of secondary metabolites of tea tree and the accumulation of main quality indexes of tea leaves.

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Effects of pruning on mineral nutrients and untargeted metabolites in fresh leaves of Camellia sinensis cv. Shuixian

Cited by 5 publications

References 46 publications

Study on the effect of magnesium on leaf metabolites, growth and quality of tea tree

Study on the effect of magnesium on leaf metabolites, growth and quality of tea tree

Effect of Leaf Pruning and Additional Fertilizer on Growth and Young Pods Yield of Winged Beans

Effects of Magnesium on Transcriptome and Physicochemical Index of Tea Leaves

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