Determination of soluble solids content and organic acid content in tomatoes with different nitrogen levels based on hyperspectral imaging technique DOI Creative Commons
Yiyang Zhang, Yan Ma, Yao Zhang

и другие.

Research Square (Research Square), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 14, 2023

Abstract Tomato is sweet and sour has high nutritional value. Soluble solids content (SSC) organic acid are important quality indexes of tomato fruit. The exogenous supply different forms nitrogen can have effects on plant growth development physiological metabolic processes because the mechanisms uptake assimilation in plants. In paper, concentrations were used to study tomatoes' physical chemical characteristics appearance. Hyperspectral imaging (HSI) technology was employed predict SSC content. Competitive adaptive reweighed sampling (CARS), uninformative variable elimination (UVE),variable combination population analysis (VCPA), iteratively retaining informative variables (IRIV), interval iterative spatial shrinkage (IVISSA) extract feature wavelengths. Based characteristic wavelength, prediction models established by partial least squares regression (PLSR), multiple linear (MLR) principal component (PCR). Then a custom convolutional neural network (CNN) model constructed optimised. results showed that negatively correlated with fertilizer concentration, highest recorded under T4 treatment. For tomatoes treated concentrations, CARS-PLSR best for SSC, R C P 0.8589 0.8499 RMSEC RMSEP 0.3180 0.3407. IRIV-PCR acids best, reaching 0.8011 0.7760 0.6181 0.7055. Among all models, performance obtained CNN satisfactory. This provides technical support future online nondestructive testing quality.

Язык: Английский

Effects of Potassium-Containing Fertilizers on Sugar and Organic Acid Metabolism in Grape Fruits DOI Open Access
Jin Wang,

Yuhang Lu,

Xuemei Zhang

и другие.

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(5), С. 2828 - 2828

Опубликована: Фев. 29, 2024

To identify suitable potassium fertilizers for grape (Vitis vinifera L.) production and study their mechanism of action, the effects four potassium-containing (complex fertilizer, nitrate, sulfate, dihydrogen phosphate) on sugar organic acid metabolism in fruits were investigated. Potassium-containing increased activity metabolism-related enzymes at all stages fruit development. During later development, total soluble solid content different fractions decreased titratable fractions. At ripening stage fruit, compared with control, complex phosphate by 1.5, 1.2, 3.5, 3.4 percentage points, 0.09, 0.06, 0.18, 0.17 respectively, also to a certain degree. Transcriptome analysis differentially expressed genes (DEGs) berries showed that applying enriched pathways involved quality, namely, carbon metabolism, fixation photosynthetic organisms, glycolysis gluconeogenesis, fructose mannose metabolism. affected expression levels regulating ion uptake transport. Overall, can promote accumulation reduce fruits, sulfate had best among tested.

Язык: Английский

Процитировано

12
Direct and alternating current electric fields affect pectin esterase and cellulase in tomato (Solanum lycopersicum L.) fruit during storage DOI
Chao‐Kai Chang, Sheng-Yen Tsai, Mohsen Gavahian

и другие.

Postharvest Biology and Technology, Год журнала: 2023, Номер 205, С. 112495 - 112495

Опубликована: Июль 28, 2023

Язык: Английский

Процитировано

22
Transcriptome analysis of sugar and acid metabolism in young tomato fruits under high temperature and nitrogen fertilizer influence DOI Creative Commons

Yanjiao Zheng,

Zaiqiang Yang, Jing Luo

и другие.

Frontiers in Plant Science, Год журнала: 2023, Номер 14

Опубликована: Июль 19, 2023

Environmental temperature and nitrogen (N) fertilizer are two important factors affecting the sugar organic acid content of tomato fruit. N is an essential nutrient element for plant growth development, plays a key role in regulating growth, fruit quality stress response. However, comparative effect different levels on accumulation soluble young under high its mechanism still unknown.Three (N1, N2, N3) combined with temperatures (28/18°C, CK; 35/25°C, HT) were used to study effects fertilizer, HT their interaction components, content, metabolic enzyme activity expression level genes fruit, revealing how affects metabolism at physiological molecular levels.The exposure was increased by appropriate (N1) treatment, which due glucose, fructose, citric malic acid. High (N3) had negative impact reduce accumulation. Further studies showed that up-regulation sucrose metabolizing (CWINV2, HK2, SPS, PK) transporter (SUT1, SUT4, SWEETs) tomato, improving metabolism, absorption intensity transport exposure. Due increase PEPC gene expression, TCA cycle exposure.Nitrogen can improve heat tolerance fruits The results provide theoretical support correct application

Язык: Английский

Процитировано

13
Phenyllactic acid regulated salicylic acid biosynthesis and organic acids metabolism in Zaosu pear fruit during storage DOI
Canying Li, Shu-Ran Zhang,

Yueruxin Jin

и другие.

Scientia Horticulturae, Год журнала: 2024, Номер 329, С. 112983 - 112983

Опубликована: Фев. 13, 2024

Язык: Английский

Процитировано

5
Evaluation of nutritional composition, biochemical, and quality attributes of different varieties of tomato (Solanum lycopersicum L.) DOI

Li Ju,

Fanhong Liu,

Yue Wu

и другие.

Journal of Food Composition and Analysis, Год журнала: 2024, Номер 132, С. 106384 - 106384

Опубликована: Июнь 1, 2024

Язык: Английский

Процитировано

5
Subsurface irrigation with ceramic emitters: Optimal working water head improves yield, fruit quality and water productivity of greenhouse tomato DOI
Xufei Liu, Lin Zhang, Qi Liu

и другие.

Scientia Horticulturae, Год журнала: 2022, Номер 310, С. 111712 - 111712

Опубликована: Ноя. 28, 2022

Язык: Английский

Процитировано

18
Potassium stimulates fruit sugar accumulation by increasing carbon flow in Citrus sinensis DOI Creative Commons
Kongjie Wu,

Chengxiao Hu,

Peiyu Liao

и другие.

Horticulture Research, Год журнала: 2024, Номер 11(11)

Опубликована: Сен. 9, 2024

Язык: Английский

Процитировано

4
Potassium Promotes Citric Acid Accumulation by Regulating Its Synthesis and Vacuole Storage in Newhall Navel Orange (Citrus sinensis) DOI
Kongjie Wu,

Chengxiao Hu,

Yuqing Duan

и другие.

Journal of Agricultural and Food Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 2, 2025

Potassium (K) is recognized as a crucial element affecting fruit flavor quality and influences the accumulation of citric acid (CA). To gain deeper insights into how K regulates CA accumulation, we investigated synthesis in mitochondria, decomposition pathways, vacuolar storage under both pot field culture Newhall navel orange (Citrus sinensis). Our findings demonstrated that an appropriate level enhanced concentrations primarily by modulating synthesis, evidenced increased activities gene expressions citrate synthase (CS) phosphoenolpyruvate carboxylase (PEPC) early stages development. Integration mitochondrial proteomic targeted metabolomic revealed promoted accelerating TCA cycle, which were supported upregulation cycle-associated proteins, including malate dehydrogenase, 2-oxoglutarate dehydrogenase E2 component, pyruvate dihydrolipoamide along with elevated levels cycle-related metabolites such CA, isocitrate, 2-oxoglutarate, succinate. Additionally, concentration vacuoles promoting acidification, P-type ATPase (CsPH8) expression. In summary, our provide novel facilitating its vacuole Citrus.

Язык: Английский

Процитировано

0
Regulatory role of exogenous 24-epibrassinolide on tomato fruit quality DOI Creative Commons

Shilei Luo,

Xianxia He,

Long Li

и другие.

BMC Plant Biology, Год журнала: 2025, Номер 25(1)

Опубликована: Май 27, 2025

Abstract Background Brassinosteroids (BRs) are known to regulate fruit development, ripening, and metabolic processes in plants. In this study, the impact of exogenous 24-epibrassinolide (EBR) on tomato quality was examined using ‘Micro-Tom’ tomatoes. Results Treatments included control (CK), EBR, brassinazole (Brz, BR biosynthesis inhibitor). EBR application accelerated evidenced by decreased hardness increased soluble solids vitamin C (VC) content. enhanced glucose fructose accumulation upregulated key genes involved sugar metabolism ( SS , NI SPS AI ). Conversely, Brz treatment inhibited these effects. also reduced malic citric acid levels downregulating associated with CS PPC1 PPC 2, MDH ), while Furthermore, significantly elevated flavonoid compounds, such as rutin quercetin, altered volatile profiles detected electronic nose analysis, particularly affecting W2W W5S sensors. Conclusion These results indicated that could effectively modulate metabolism, enhance content, influence aroma, suggesting its potential improve quality.

Язык: Английский

Процитировано

0
Determination of soluble solids content in tomatoes with different nitrogen levels based on hyperspectral imaging technique DOI Open Access
Yiyang Zhang, Yao Zhang, Yu Tian

и другие.

Journal of Food Science, Год журнала: 2024, Номер 89(9), С. 5724 - 5733

Опубликована: Авг. 13, 2024

Tomato is sweet and sour with high nutritional value, soluble solids content (SSC) an important indicator of tomato flavor. Due to the different mechanisms nitrogen uptake assimilation in plants, exogenous supply forms will have effects on growth, development, physiological metabolic processes tomato, thus affecting In this paper, hyperspectral imaging (HSI) technique combined neural network prediction model was used predict SSC under treatments. Competitive adaptive reweighed sampling (CARS) iterative retained information variable (IRIV) were extract feature wavelengths. Based characteristic wavelength, models are established by custom convolutional (CNN) that constructed optimized. The results showed negatively correlated fertilizer concentration. For tomatoes treated concentrations, residual predictive deviation (RPD) CARS-CNN IRIV-parallel networks (PCNN) reached 1.64 1.66, both more than 1.6, indicating good prediction. This study provides technical support for future online nondestructive testing quality. PRACTICAL APPLICATION: IRIV-PCNN best data processing model. Four customized modeling. CNN accurate conventional methods.

Язык: Английский

Процитировано

2