Postharvest Biology and Technology最新文献_第2页

Effect of long-term controlled atmosphere storage enriched with ethanol or hexanal vapour on primary and secondary aroma compounds of ‘Braeburn’ and ‘Granny Smith’ apples

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-09 DOI: 10.1016/j.postharvbio.2025.113563

Erika Jesenko, Rajko Vidrih, Emil Zlatić

{"title":"Effect of long-term controlled atmosphere storage enriched with ethanol or hexanal vapour on primary and secondary aroma compounds of ‘Braeburn’ and ‘Granny Smith’ apples","authors":"Erika Jesenko, Rajko Vidrih, Emil Zlatić","doi":"10.1016/j.postharvbio.2025.113563","DOIUrl":"10.1016/j.postharvbio.2025.113563","url":null,"abstract":"<div><div>The aim of this research was to study the effects of ethanol or hexanal enriched atmosphere focusing on primary (PA) and secondary aroma (SA) volatiles of 'Braeburn' and 'Granny Smith' apples. Apples were stored for 7 months under three conditions: controlled atmosphere (CA, 2 kPa O<sub>2</sub>,1 kPa CO<sub>2</sub>), CA with hexanal or CA with ethanol vapour (55 µgL<sup>−1</sup> air). Volatile profiles were analyzed over 7 days of shelf-life at 20 °C. The results showed large differences between PA and SA profiles. The SA of both cultivars showed higher levels of aldehydes and alcohols, while PA was characterized by higher contents of hexyl and butyl esters. The most influential compounds were hexyl 2-methylbutanoate, hexanal, and 2-methylbutanal for 'Braeburn', and 2-methyl-1-butanol, butanal, and hexanal for 'Granny Smith' apples. The effect of the addition of hexanal and ethanol to CA on the PA and SA profile after storage was dependent on the cultivar and shelf-life period. The most pronounced effect was observed with hexanal treatment on the PA of ‘Braeburn’ apples, where hexanal treatment enhanced key aroma-active compounds, such as hexyl butanoate and hexyl hexanoate. Both vapor treatments induced the formation of 2-pentanone and 2-pentanol, indicating lipid peroxidation in both apple cultivars. Prolonged exposure to ethanol or hexanal vapors in CA can modulate the synthesis of key volatile compounds in PA and SA, potentially offering promising applications in the flavor and food industries.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113563"},"PeriodicalIF":6.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification, pathogenic mechanism and control of Aspergillus aculeatus causing postharvest fruit rot in Longan

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-09 DOI: 10.1016/j.postharvbio.2025.113573

Chenguang Wang , Pengfei Li , Weiwei Cong , Junli Cao , Yiping Hou

{"title":"Identification, pathogenic mechanism and control of Aspergillus aculeatus causing postharvest fruit rot in Longan","authors":"Chenguang Wang , Pengfei Li , Weiwei Cong , Junli Cao , Yiping Hou","doi":"10.1016/j.postharvbio.2025.113573","DOIUrl":"10.1016/j.postharvbio.2025.113573","url":null,"abstract":"<div><div>Longan (<em>Dimocarpus longan</em> Lour) fruit rot is a severe post-harvest disease that significantly hampers the development of longan trade. In 2023, this disease was observed in Guangdong, China, with an incidence rate of approximately 25 %. Morphological and molecular identification confirmed it as <em>Aspergillus aculeatus</em>. To our knowledge, this is the first report of <em>A. aculeatus</em> causing longan fruit rot. The isolated strains maintained high pathogenicity. Infection by <em>A. aculeatus</em> increased the activities of polygalacturonase (PG), pectinase (PE), cellulase (CL), and β-galactosidase (β-Gal) in longan, accelerating the breakdown of cell wall materials (cell wall material, hemicellulose, cellulose, and pectin). This degradation leads to fruit decay, which is the primary cause of longan rot associated with this pathogen. <em>A. aculeatus</em> showed the highest sensitivity to fludioxonil, with an EC<sub>50</sub> value of 0.0170 ± 0.0006 µg/mL, and demonstrated good control efficacy in <em>vivo</em> (over 75 %). Therefore, fludioxonil is recommended as an effective fungicide for the management of <em>A. aculeatus</em>. In the future, effective resistance management should be implemented by rotating fungicides with distinct modes of action to mitigate resistance emergence and ensure the sustainable development of the fruit industry. This study provides a theoretical basis for the control of longan fruit rot.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113573"},"PeriodicalIF":6.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hot water treatment enhances mandarin fruit resistance to Penicillium italicum via histone H3K9 and H3K36 methylation modification 热水处理通过组蛋白 H3K9 和 H3K36 甲基化修饰增强柑橘果实对意大利青霉的抗性

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-09 DOI: 10.1016/j.postharvbio.2025.113569

Jiechun Peng , Xiaoyan Duan , Hanzhi Liang , Pedro Garcia-Caparros , Yueming Jiang , Xuewu Duan

{"title":"Hot water treatment enhances mandarin fruit resistance to Penicillium italicum via histone H3K9 and H3K36 methylation modification","authors":"Jiechun Peng , Xiaoyan Duan , Hanzhi Liang , Pedro Garcia-Caparros , Yueming Jiang , Xuewu Duan","doi":"10.1016/j.postharvbio.2025.113569","DOIUrl":"10.1016/j.postharvbio.2025.113569","url":null,"abstract":"<div><div>Citrus blue mold, caused by <em>Penicillium italicum</em>, is a significant postharvest disease that severely impacts fruit quality and storage life. This study investigated the effects of hot water (HW) treatment at 50 °C for 2.5 min on mandarin (<em>Citrus reticulata</em> Blanco 'Shatangju') fruit resistance to blue mold, focusing on transcriptional and epigenetic changes of disease-related genes. The results showed that HW treatment effectively reduced lesion diameter and disease incidence, delaying both disease onset and progression. RT-qPCR analysis identified six <em>CrPG</em> (polygalacturonase), whose expression was downregulated following HW treatment, thereby likely contributing to enhanced cell wall integrity and reduced fungal invasion. Additionally, three <em>CrPR</em> (pathogenesis-related proteins) exhibited elevated expression levels in HW-treated fruit, suggesting an enhanced defense responses. ChIP-qPCR analysis revealed that HW treatment increased H3K9me2 levels at the loci of <em>CrPG2, CrPG29, CrPG30, CrPG31, CrPG34,</em> and <em>CrPG37</em>, associated with transcriptional repression, while H3K36me2 levels were elevated at the loci of <em>CrPR5c, CrPG5d,</em> and <em>CrPR5f</em>, correlating with transcriptional activation. These findings suggest that HW treatment enhances mandarin fruit resistance to blue mold by modulating gene expression through histone methylation. This study provides insights into the molecular mechanisms underlying postharvest disease resistance and supports the potential of HW treatment as a sustainable postharvest strategy.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113569"},"PeriodicalIF":6.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PsHY5 functions as a positive transcription factor of light-induced anthocyanin accumulation in Paeonia suffruticosa cut flowers PsHY5 是芍药切花光诱导花青素积累的正转录因子

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-09 DOI: 10.1016/j.postharvbio.2025.113534

Xin Kong , Lili Zhang , Chao Zhang , Xiaolin Di , Li Dong

{"title":"PsHY5 functions as a positive transcription factor of light-induced anthocyanin accumulation in Paeonia suffruticosa cut flowers","authors":"Xin Kong , Lili Zhang , Chao Zhang , Xiaolin Di , Li Dong","doi":"10.1016/j.postharvbio.2025.113534","DOIUrl":"10.1016/j.postharvbio.2025.113534","url":null,"abstract":"<div><div>As secondary metabolites, anthocyanins largely contribute to flower pigmentation. Light serves as a key stimulus for anthocyanin production in plants, in which HY5 functions as the crucial transcription factor in photomorphogenesis and positively regulates light-induced anthocyanin biosynthesis. However, the anthocyanin accumulation pattern regulated by light in tree peony (<em>Paeonia suffruticosa</em> Andr.) cut flowers and the function of <em>PsHY5</em> in this process remain unknown. Current research has investigated the pigmentation of cut flowers of the tree peony variety ‘Taiyang’ in response to various light intensities. Compared with the results of the weak light-treated group, in which cut flowers were placed under indoor illumination (∼50 μmol m<sup>−2</sup> s<sup>−1</sup>), the 300 μmol m<sup>−2</sup> s<sup>−1</sup> light intensity increased the color of the cut flowers, increased the anthocyanin contents in the petals, and increased the expression of most genes in the anthocyanin pathway; however, the petal color quality under the completely dark treatment was poorer because of the much lower anthocyanin contents. Moreover, PsHY5, the crucial transcription factor involved in the light signaling pathway, was isolated from the petals of tree peony. Its expression level was upregulated under intense light treatment but downregulated under dark treatment compared to that under weak light. The PsHY5 protein can activate the transcription of <em>PsCHS1</em> by directly binding to its promoter, thus regulating anthocyanin metabolism under different light intensities. Furthermore, PsHY5-overexpressing <em>Arabidopsis thaliana</em> seedlings apparently accumulated more anthocyanins under both normal and high light intensities. Our findings confirmed that high light intensity contributes to anthocyanin accumulation in tree peony cut flowers and that PsHY5 is a positive transcription factor in this process.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113534"},"PeriodicalIF":6.4,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Finite element modelling of the mechanical behavior of papaya fruit under compression

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-07 DOI: 10.1016/j.postharvbio.2025.113565

Ademola M. Aina , Hazreen H. Harith , Norhashila Hashim , Mohamad Firdza Mohamad Shukery

{"title":"Finite element modelling of the mechanical behavior of papaya fruit under compression","authors":"Ademola M. Aina , Hazreen H. Harith , Norhashila Hashim , Mohamad Firdza Mohamad Shukery","doi":"10.1016/j.postharvbio.2025.113565","DOIUrl":"10.1016/j.postharvbio.2025.113565","url":null,"abstract":"<div><div>Fruit is susceptible to mechanical damage during harvesting, transportation, and storage, depending on whether the stress exceeds their yield threshold. The finite element analysis (FEA) is often used to simulate stress distributions, but heterogeneous material properties in fruit increases the computational cost. Papaya, an irregular-shaped fruit with thin skin, thick flesh, and high moisture content, is prone to mechanical injury. Stress analysis can aid in post-harvest handling management. Modelling papaya as a homogeneous material could reduce the computational cost associated with FEA. Therefore, this study investigates: (1) a single material model that best simulates papaya’s mechanical response under compressive loading using FEA, (2) the variation in papaya’s mechanical response when simulated with two types of 3D models and, (3) the variation in papaya’s mechanical response when loaded from two different directions. Three material models were simulated: (i) linear elastic, (ii) bilinear elastic-plastic with defined hardening parameters, and (iii) viscoelastic with distinctive relaxation times and relaxation modulus values. The viscoelastic model best simulated papaya’s mechanical response under compression (RMSE = 0.0001 MPa, MRE = 12 %). Results indicated no substantial difference in the mechanical response of papaya when using 3D scanned or CAD models. Lastly, the stress distribution within the fruit tissues varied significantly (up to 69 % deviation) when compressed transversely and longitudinally. This highlights the necessity to consider loading direction in mechanical assessments of fruit like papaya.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113565"},"PeriodicalIF":6.4,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143785574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kojic acid suppresses browning incidence, maintains quality and sensory attributes of harvested loquat fruit by upregulating enzymatic and non-enzymatic antioxidants

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-05 DOI: 10.1016/j.postharvbio.2025.113560

Saqib Ayyub , Ahmad Sattar Khan , Raheel Anwar , Abdul Rehman , Hafiz Muhammad Shoaib Shah , Sajid Ali

{"title":"Kojic acid suppresses browning incidence, maintains quality and sensory attributes of harvested loquat fruit by upregulating enzymatic and non-enzymatic antioxidants","authors":"Saqib Ayyub , Ahmad Sattar Khan , Raheel Anwar , Abdul Rehman , Hafiz Muhammad Shoaib Shah , Sajid Ali","doi":"10.1016/j.postharvbio.2025.113560","DOIUrl":"10.1016/j.postharvbio.2025.113560","url":null,"abstract":"<div><div>Loquat is highly susceptible to postharvest browning incidence during supply chain, which severely deteriorates the storability, market potential, eating quality, and consumer acceptability of fruit. This study aimed at elucidating the influence of pre-storage kojic acid (KA, 0, 2, 4, or 6 mM) dip treatments on postharvest browning of 'Surkh' loquat fruit during cold storage at 4 ± 1 °C for 24 d and subsequent shelf period for 2 d at ambient temperature. The results demonstrated that 2 mM KA treatment significantly decreased fruit browning, weight loss, and decay incidence. Postharvest application of 2 mM KA suppressed malondialdehyde and hydrogen peroxide radical accumulation as well as lowered the activities of polyphenol oxidase and peroxidase enzymes in loquat fruit, as compared to control. Additionally, loquat fruit treated with 2 mM KA exhibited higher levels of total soluble solids, titratable acidity, vitamin C, glutathione, proline, total phenolics, total antioxidants and sensory attributes like fruit taste and consumer acceptability as compared to other KA treatments and control. Higher activities of superoxide dismutase, catalase, and ascorbate peroxidase were noted in 2 mM KA-treated loquats. In conclusion, 2 mM KA treatment could be adopted to alleviate postharvest browning, maintaining higher levels of bioactive compounds and antioxidant potential, while preserving better eating quality of 'Surkh' loquat fruit for 24 d cold storage and 2 d shelf period.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113560"},"PeriodicalIF":6.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MiR9474-5p regulatory function in tomato fruit development and ripening: Comprehensive transcriptomic analysis

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-05 DOI: 10.1016/j.postharvbio.2025.113558

Xiuming Zhao , Fujun Li , Yue Ji, Xiaoan Li, Xinhua Zhang

{"title":"MiR9474-5p regulatory function in tomato fruit development and ripening: Comprehensive transcriptomic analysis","authors":"Xiuming Zhao , Fujun Li , Yue Ji, Xiaoan Li, Xinhua Zhang","doi":"10.1016/j.postharvbio.2025.113558","DOIUrl":"10.1016/j.postharvbio.2025.113558","url":null,"abstract":"<div><div>MicroRNAs (miRNAs), a subclass of small non-coding RNA molecules, play critical regulatory functions in modulating gene expression within plant systems. The present study delved into the intricate regulatory mechanism of miR9474–5p, a miRNA specifically expressed in response to tomato fruit ripening. Utilizing RNA-seq technology, we conducted a comprehensive genomic analysis comparing tomato fruit with silenced miR9474–5p using the short tandem target mimic (STTM-<em>miR9474–5p</em>), overexpressed miR9474–5p (P<sub>35S</sub>-<em>pre-miR9474</em>), and wild-type fruit. Our findings revealed that the overexpression of <em>miR9474–5p</em> inhibited ripening in tomato fruit, downregulated a substantial number of genes, and significantly influenced alternative splicing patterns. Moreover, miR9474–5p was found to target a wide array of genes involved in various metabolic pathways, including porphyrin metabolism, carotenoid biosynthesis, starch and sucrose metabolism, fatty acid biosynthesis, and the metabolism of alanine, aspartate, and glutamate. It also affected phenylpropanoid biosynthesis, photosynthesis-antenna proteins, plant-pathogen interaction, MAPK signaling pathway and protein processing in endoplasmic reticulum. These pathways are essential for pigment metabolism, flavor formation, and resistance traits. Additionally, miR9474–5p was implicated in plant hormone signal transduction by targeting auxin signaling pathways. This study not only identified candidate target genes for fruit development and quality control but also contributed to a deeper understanding of the roles of miRNAs in regulating tomato fruit development, ripening and quality.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113558"},"PeriodicalIF":6.4,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Volatile organic compounds produced by Bacillus siamensis inhibit postharvest grey mold in cherry tomato by altering metabolic pathways and the pathogenicity of Botrytis cinerea

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-04 DOI: 10.1016/j.postharvbio.2025.113543

Jing Yun , Xin Yan , Shuzhi Yuan , Xiaozhen Yue , Aili Jiang , Xiaodi Xu , Qing Wang

{"title":"Volatile organic compounds produced by Bacillus siamensis inhibit postharvest grey mold in cherry tomato by altering metabolic pathways and the pathogenicity of Botrytis cinerea","authors":"Jing Yun , Xin Yan , Shuzhi Yuan , Xiaozhen Yue , Aili Jiang , Xiaodi Xu , Qing Wang","doi":"10.1016/j.postharvbio.2025.113543","DOIUrl":"10.1016/j.postharvbio.2025.113543","url":null,"abstract":"<div><div>Cherry tomatoes, a nutritious and economically valuable global crop, suffer major postharvest losses annually due to grey mold (<em>Botrytis cinerea</em>) infections. According to reports, microorganisms produce volatile organic compounds (VOCs) can inhibit plant pathogens and avert disease. A previous study demonstrated <em>Bacillus siamensis</em> VOCs can inhibit several fungal pathogens, but their ability to prevent postharvest grey mold in cherry tomato fruit and the underlaying molecular mechanism responsible for the inhibition have not been investigated. The present study revealed the ability of <em>B. siamensis</em> VOCs to significantly inhibit colony growth and spore germination in <em>B. cinerea in vitro</em> and reduce grey mold of cherry tomato fruit. <em>B. siamensis</em> VOCs also decreased natural disease incidence of cherry tomatoes, and delayed fruit softening, as well as the loss of Vitamin C, and the reduction in peroxidase (POD) activity. Cherry tomatoes exposed to <em>B. siamensis</em> VOCs also had lower levels of respiration intensity, and malondialdehyde (MDA) content, relative to control fruit. Transcriptome analysis indicated that <em>B. siamensis</em> VOCs induced the downregulation of genes in <em>B. cinerea</em> involved in glycerophospholipid metabolism, amino and nucleotide sugar metabolism, tryptophan metabolism, as well as genes involved in pathogenicity. Collectively, results indicated that <em>B. siamensis</em> VOCs inhibit <em>B. cinerea</em> on harvested cherry tomato fruit by mediating the metabolism and pathogenicity of <em>B. cinerea</em>. These results enhance comprehension of the mechanisms by which <em>B. siamensis</em> VOCs exerts antimicrobial activity.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113543"},"PeriodicalIF":6.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fruitlet Core Rot disease in ‘Queen Victoria’ pineapple infructescence triggers local and systemic metabolome reconfigurations

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-04 DOI: 10.1016/j.postharvbio.2025.113561

Lorraine Latchoumane , Bastien Barral , Olivier Chevallier , Jérôme Minier , Fabrice Davrieux , Marc Chillet , Raphaël Lugan

{"title":"Fruitlet Core Rot disease in ‘Queen Victoria’ pineapple infructescence triggers local and systemic metabolome reconfigurations","authors":"Lorraine Latchoumane , Bastien Barral , Olivier Chevallier , Jérôme Minier , Fabrice Davrieux , Marc Chillet , Raphaël Lugan","doi":"10.1016/j.postharvbio.2025.113561","DOIUrl":"10.1016/j.postharvbio.2025.113561","url":null,"abstract":"<div><div>We studied the metabolomes of ’Queen Victoria’ pineapples subjected to the fungi-induced fruitlet core rot (FCR) disease, a major quality issue in the pineapple industry. Analyses were carried out on the pulp and skin of individual fruitlets within healthy or black spotted infructescences, in order to profile three types of samples: healthy, infected and asymptomatic fruitlets. Our results reveal distinct responses to FCR in pulp and skin of infected fruitlets, both quantitatively and qualitatively. The pulp displayed much stronger and diverse changes, including the implementation of a local phenolic-based defense reflecting both antimicrobial activity and cell wall turnover. Evidence of strong redox regulation linked to the presence of the pathogen was observed through variations in proline and glutathione-conjugated compounds. Moreover, among the numerous sugar variations, a particular trehalose pattern emerged as an antagonistic issue between the plant and the fungus. The activation of signaling pathways following the fungal attack was also revealed, with the accumulation of pipecolate and alpha-aminobutyrate, involved in defense priming and systemic acquired resistance. Interestingly, we also found significant metabolic changes in asymptomatic fruitlets, similar in nature but smaller in magnitude, demonstrating the existence of a systemic response to infection. This work opens the way to a better understanding of the infection and defense mechanisms involved in FCR and their consequences on organoleptic quality.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113561"},"PeriodicalIF":6.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chilling stress induces decreased abscisic acid and elevated salicylic acid levels in harvested sweet potato (Ipomoea batatas L.) roots

IF 6.4 1区农林科学

Postharvest Biology and Technology Pub Date : 2025-04-04 DOI: 10.1016/j.postharvbio.2025.113557

Sangjung Kim , Jieun Seo , Ji-Hyun Lee , Eun Jin Lee

{"title":"Chilling stress induces decreased abscisic acid and elevated salicylic acid levels in harvested sweet potato (Ipomoea batatas L.) roots","authors":"Sangjung Kim , Jieun Seo , Ji-Hyun Lee , Eun Jin Lee","doi":"10.1016/j.postharvbio.2025.113557","DOIUrl":"10.1016/j.postharvbio.2025.113557","url":null,"abstract":"<div><div>Chilling injury (CI) poses a significant challenge to postharvest storage of sweet potato (<em>Ipomoea batatas</em> L.), particularly at temperatures below 10 °C. Despite of its importance, the mechanisms underlying CI, especially from a phytohormonal perspective, remain poorly understood. This study investigated the ‘Beni Haruka’ cultivar stored for 28 d at 13 °C (optimal), and 4 °C (chilling). CI symptoms were observed exclusively in roots stored at 4 °C, with symptoms first appearing on 21 d. CI severity correlated with increased oxidative damage. The amyloplast area decreased in roots stored at 4 °C, accompanied by increased amylase activity and reducing sugar accumulation. Glycine, serine, and leucine accumulated at 4 °C, along with phenolic compounds such as vanillic and chlorogenic acids. Phytohormonal analysis of roots stored at 4 °C revealed a continuous decline in abscisic acid (ABA) content, while salicylic acid (SA) content increased during the initial stages of storage. Similar phytohormonal patterns were observed in the ‘Kara Yutaka’ cultivar, which was stored under the same conditions as the ‘Beni Haruka’ cultivar. At 4 °C, genes involved in ABA biosynthesis was downregulated, while those associated with ABA catabolism were upregulated. In contrast, SA content increased, accompanied by the upregulation of genes linked to its biosynthesis and signaling. This study reveals the phytohormonal and metabolic mechanisms underlying the chilling response in postharvest sweet potato roots, emphasizing the critical roles in ABA and SA.</div></div>","PeriodicalId":20328,"journal":{"name":"Postharvest Biology and Technology","volume":"226 ","pages":"Article 113557"},"PeriodicalIF":6.4,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0