Fruit quality and volatile constituents of a new very early-ripening pummelo (Citrus maxima) cultivar ‘Liuyuezao’

Pan, Tengfei; Kong, Lingchao; Zhang, Xinxin; Wang, Yanhui; Zhou, Jinyu; Fu, Zhijun; Pan, Hui; She, Wenqin; Yu, Yuan

doi:10.3389/fpls.2022.1089009

Cited by 10 publications

(7 citation statements)

References 53 publications

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“…Additionally, the genetic characteristics of each citrus variety can lead to differences in seed size. For example, a study on the fruit quality of a new pummelo cultivar, C. maxima, reported differences in the fruit characteristics, including seed size and content, among different cultivars (Pan et al 2023). The results of this study reveal that the initial moisture contents of C. jambhiri and C. maxima seeds were 38.55% and 41.23%, respectively.…”

Section: Resultsmentioning

confidence: 71%

Unlocking the Potential of Phloroglucinol and Tocopherol in Improving the Photosynthetic Efficiency, Membrane Stability, and Antioxidant Enzyme Activities of Cryopreserved In Vitro Raised Plantlets of Citrus maxima Merr. And Citrus jambhiri Lush

Sanglyne,

Kurbah,

Das

2023

Preprint

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This study examined the effects of tocopherol (Vitamin E) and phloroglucinol (1,3,5-trihydroxybenzene) on cryopreserved plantlets of Citrus jambhiri Lush and Citrus Maxima Merr., two important Citrusspecies used in citrus breeding and variety development. After undergoing cryopreservation using conventional desiccation methods, the seeds of these two species were propagated in Murashige and Skoog (MS) medium with various concentrations of tocopherol and phloroglucinol. Plantlets raised from both cryopreserved and non-cryopreserved seeds were multiplied using clonal propagation on MS medium supplemented with the specified two chemicals. The clones were subsequently assessed by a range of procedures, including the quantification of chlorophyll levels, measurement of electrolyte leakage, and evaluation of specific antioxidant enzyme activities, including superoxide dismutase, catalase, and peroxidase. Cryopreserved and non-cryopreserved C. jambhiri and C. maxima clones subjected to 2.0 µM and 15.0 µM tocopherol showed improved membrane stability compared to their control counterparts. Increased photosynthetic efficiency was attained by supplementing 0.3 µM and 4.0 µM phloroglucinol to C. jambhiri and C. maxima, respectively. Both cryopreserved and non-cryopreserved C. jambhiri clones had their maximum antioxidant enzyme activity when cultured in a medium with 2.0 µM tocopherol and 0.3 µM phloroglucinol. In C. maxima, cryopreserved and non-cryopreserved clones had higher antioxidant enzyme activity in medium with 15.0 µM tocopherol and 4.0 µM phloroglucinol. In conclusion, the use of vitamin E and phloroglucinol in cryopreservation can greatly improve the important developmental traits of cryopreserved citrus plantlets.

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Section: Resultsmentioning

confidence: 71%

Unlocking the Potential of Phloroglucinol and Tocopherol in Improving the Photosynthetic Efficiency, Membrane Stability, and Antioxidant Enzyme Activities of Cryopreserved In Vitro Raised Plantlets of Citrus maxima Merr. And Citrus jambhiri Lush

Sanglyne,

Kurbah,

Das

2023

Preprint

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“…Our previous studies highlighted the importance of VOCs in C. depressa of Okinawa origin on its aroma profile, which is much different from other similar small-type citrus cultivars [1,10]. Taste-related metabolites and aroma-emitting VOCs work synergistically to create balanced sensory traits in citrus fruits [3,7].…”

Section: Introductionmentioning

confidence: 98%

“…These compounds play essential roles in the biochemical processes of citrus fruits and contribute to their nutritional value, taste characteristic, and potential health benefits [6]. Important metabolites of citrus fruits include sugars and sugar alcohols, which contribute to the perceived sweetness, whereas organic acids, such as citric acid and malic acid, contribute to their tartness [7]. In contrast, volatile organic compounds (VOCs) significantly affect the sensory experience of the consumer by providing citrusy aromas and enhancing the overall flavor quality of the fruits [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Important metabolites of citrus fruits include sugars and sugar alcohols, which contribute to the perceived sweetness, whereas organic acids, such as citric acid and malic acid, contribute to their tartness [7]. In contrast, volatile organic compounds (VOCs) significantly affect the sensory experience of the consumer by providing citrusy aromas and enhancing the overall flavor quality of the fruits [7,8]. The complex combination of VOCs, which are composed of terpenes, alcohols, aldehydes, ketones, ethers, esters, and oxides, imparts a unique aroma profile to each citrus fruit, including C. depressa [9].…”

Section: Introductionmentioning

confidence: 99%

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Multivariate Profiling of Metabolites and Volatile Organic Compounds in Citrus depressa Hayata Fruits from Kagoshima, Okinawa, and Taiwan

Tamura

Aono

Kusano

et al. 2023

Foods

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Citrus depressa Hayata is a small-fruit citrus species; it is indigenous to Kagoshima, Okinawa, and Taiwan. The metabolites and volatile organic compounds (VOCs) that affect the flavor of its fruits have not been investigated based on geographical origin. In the present study, we investigated the metabolite and VOC profiles of 18 C. depressa cultivation lines from these regions. Multivariate analysis revealed differences in the metabolites of C. depressa based on its cultivation origins; variations in sugar, sugar alcohol, and amino acid contents were also observed. Fruits from Kagoshima and Okinawa had higher galactinol, trehalose, xylose, glucose, and sucrose intensities than fruits from Taiwan (log2-fold change; 2.65–3.44, 1.68–2.13, 1.37–2.01, 1.33–1.57, and 1.07–1.43, respectively), whereas the Taiwanese lines contained higher leucine, isoleucine, serine, and alanine. In contrast to the Taiwanese Nantou line, other cultivation lines had comparable total VOC contents, and the VOCs of all lines were dominated by limonene, γ-terpinene, and p-cymene. Accordingly, the highest VOC intensities were recorded in the Nantou line, which was followed by Shikunin sweet (Kagoshima) and Taoyuan (Taiwan) (log10 normalize concentration; 5.11, 3.08, and 3.01, respectively). Moreover, multivariate analysis plots elucidated the difference in the VOCs of Ishikunibu (Okinawa), Shikunin sweet, and Taoyuan and between those of most Kagoshima and Okinawa cultivation lines. These results suggest that both the cultivation line and origin influence the metabolites and VOCs of C. depressa, thus possibly affecting its flavor quality; the data provide a valuable insight for utilizing C. depressa of different cultivation lines and origins to produce foods and beverages.

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“…However, the reason for the change in the flavor of the fruits of two spontaneous mutants remains elusive. In citrus, the change of fructose content in bud sport mutants is more common ( Hussain et al., 2020 ), and has generated many high-sweetness germplasm resources ( Fang et al., 2023 ; Pan et al., 2023 ). Usually, white-fleshed loquat varieties have a higher fructose content than yellow-fleshed loquat varieties ( Chen et al., 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Multi-omics analysis provides new insights into the changes of important nutrients and fructose metabolism in loquat bud sport mutant

Song,

Zhao,

Pei

et al. 2024

Front. Plant Sci.

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Bud sport is a common and stable somatic variation in perennial fruit trees, and often leads to significant modification of fruit traits and affects the breeding value. To investigate the impact of bud sport on the main metabolites in the fruit of white-fleshed loquat, we conducted a multi-omics analysis of loquat fruits at different developmental stages of a white-fleshed bud sport mutant of Dongting loquat (TBW) and its wild type (TBY). The findings from the detection of main fruit quality indices and metabolites suggested that bud sport resulted in a reduction in the accumulation of carotenoids, fructose, titratable acid and terpenoids at the mature stage of TBW, while leading to the accumulation of flavonoids, phenolic acids, amino acids and lipids. The comparably low content of titratable acid further enhances the balanced and pleasent taste profile of TBW. Expression patterns of differentially expressed genes involved in fructose metabolism exhibited a significant increase in the expression level of S6PDH (EVM0006243, EVM0044405) prior to fruit maturation. The comparison of protein sequences and promoter region of S6PDH between TBY and TBW revealed no structural variations that would impact gene function or expression, indicating that transcription factors may be responsible for the rapid up-regulation of S6PDH before maturation. Furthermore, correlation analysis helped to construct a comprehensive regulatory network of fructose metabolism in loquat, including 23 transcription factors, six structural genes, and nine saccharides. Based on the regulatory network and existing studies, it could be inferred that transcription factors such as ERF, NAC, MYB, GRAS, and bZIP may promote fructose accumulation in loquat flesh by positively regulating S6PDH. These findings improve our understanding of the nutritional value and breeding potential of white-fleshed loquat bud sport mutant, as well as serve as a foundation for exploring the genes and transcription factors that regulate fructose metabolism in loquat.

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Fruit quality and volatile constituents of a new very early-ripening pummelo (Citrus maxima) cultivar ‘Liuyuezao’

Cited by 10 publications

References 53 publications

Unlocking the Potential of Phloroglucinol and Tocopherol in Improving the Photosynthetic Efficiency, Membrane Stability, and Antioxidant Enzyme Activities of Cryopreserved In Vitro Raised Plantlets of Citrus maxima Merr. And Citrus jambhiri Lush

Unlocking the Potential of Phloroglucinol and Tocopherol in Improving the Photosynthetic Efficiency, Membrane Stability, and Antioxidant Enzyme Activities of Cryopreserved In Vitro Raised Plantlets of Citrus maxima Merr. And Citrus jambhiri Lush

Multivariate Profiling of Metabolites and Volatile Organic Compounds in Citrus depressa Hayata Fruits from Kagoshima, Okinawa, and Taiwan

Multi-omics analysis provides new insights into the changes of important nutrients and fructose metabolism in loquat bud sport mutant

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