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RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETICMODIFICATIONS

《农业科学与工程前沿（英文）》 2021年 第8卷 第2期

摘要：

Fruit ripening is a complex developmental process made up of genetically programmed physiological and biochemical activities. It culminates in desirable changes in the structural and textural properties and is governed by a complex regulatory network. Much is known about ethylene, one of the most important metabolites promoting the ripening of climacteric fruits. However, the dynamic interplay between phytohormones also plays an important part. Additional regulatory factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation of climacteric fruit ripening. Here, we review and evaluate the complex regulatory network comprising interactions between hormones and the action of TFs and epigenetic modifications during climacteric fruit ripening.

 

关键词： climacteric fruit ripening / phytohormones / TFs / epigenetic modifications    

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RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETICMODIFICATIONS

Yinglin JI, Mingyang XU, Aide WANG

《农业科学与工程前沿（英文）》   页码 314-334 doi: 10.15302/J-FASE-2021386

摘要： Fruit ripening is a complex developmental process made up of genetically programmed physiological and biochemical activities. It culminates in desirable changes in the structural and textural properties and is governed by a complex regulatory network. Much is known about ethylene, one of the most important metabolites promoting the ripening of climacteric fruits. However, the dynamic interplay between phytohormones also plays an important part. Additional regulatory factors such as transcription factors (TFs) and epigenetic modifications also play vital role in the regulation of climacteric fruit ripening. Here, we review and evaluate the complex regulatory network comprising interactions between hormones and the action of TFs and epigenetic modifications during climacteric fruit ripening.

关键词： climacteric fruit ripening     phytohormones     TFs     epigenetic modifications    

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Genome-wide identification and expression analysis of the β-amylase genes strongly associated with fruitdevelopment, ripening, and abiotic stress response in two banana cultivars

Hongxia MIAO,Peiguang SUN,Yulu MIAO,Juhua LIU,Jianbin ZHANG,Caihong JIA,Jingyi WANG,Zhuo WANG,Zhiqiang JIN,Biyu XU

《农业科学与工程前沿（英文）》 2016年 第3卷 第4期   页码 346-356 doi: 10.15302/J-FASE-2016127

摘要： β-amylase (BAM) is an important enzyme involved in conversion of starch to maltose in multiple biological processes in plants. However, there is currently insufficient information on the BAM gene family in the important fruit crop banana. This study identified 16 genes in the banana genome. Phylogenetic analysis showed that MaBAMs were classified into four subfamilies. Most in each subfamily shared similar gene structures. Conserved motif analysis showed that all identified MaBAM proteins had the typical glyco hydro 14 domains. Comprehensive transcriptomic analysis of two banana genotypes revealed the expression patterns of in different tissues, at various stages of fruit development and ripening, and in responses to abiotic stresses. Most s showed strong transcript accumulation changes during fruit development and late-stage ripening. Some showed significant changes under cold, salt, and osmotic stresses. This finding indicated that might be involved in regulating fruit development, ripening, and responses to abiotic stress. Analysis of five hormone-related and seven stress-relevant elements in the promoters of further revealed that BAMs participated in various biological processes. This systemic analysis provides new insights into the transcriptional characteristics of the genes in banana and may serve as a basis for further functional studies of such genes.

关键词： β-amylase     banana     genome-wide identification     fruit development     abiotic stress    

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Epigenetic dysregulation in hepatocellular carcinoma: focus on polycomb group proteins

null

《医学前沿（英文）》 2013年 第7卷 第2期   页码 231-241 doi: 10.1007/s11684-013-0253-7

摘要：

Hepatocellular carcinoma (HCC) development is characterized by the presence of epigenetic alterations, including promoter DNA hypermethylation and post-translational modifications of histone, which profoundly affect expression of a wide repertoire of genes critical for cancer development. Emerging data suggest that deregulation of polycomb group (PcG) proteins, which are key chromatin modifiers repressing gene transcription during developmental stage, plays a causative role in oncogenesis. PcG proteins assemble into polycomb repressive complex 1 (PRC1) and polycomb repressive complex 2 (PRC2) to impose the histone H3 lysine 27 trimethylation (H3K27me3) modification for repression. In this review, we will first recapitulate the mechanisms of two key epigenetic pathways: DNA methylation and histone modifications. Specifically, we will focus our discussion on the molecular roles of PcG proteins. Next, we will highlight recent findings on PcG proteins, their clinicopathological implication and their downstream molecular consequence in hepatocarcinogenesis. Last but not least, we will consider the therapeutic potential of targeting enhancer of zeste homolog 2 (EZH2) as a possible treatment for HCC. Improving our understanding on the roles of PcG proteins in hepatocarcinogenesis can benefit the development of epigenetic-based therapy.

关键词： liver cancer     epigenetics     histone modifications     polycomb group proteins     enhancer of zeste homolog 2 (EZH2)    

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YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 583-593 doi: 10.15302/J-FASE -2020325

摘要：

The effects of regulated deficit irrigation (RDI) on the performance of almond cv. Tuono, peach cv. JH-Hall and plum cv. Stanley were assessed on the Saiss Plain (NW, Morocco) over three consecutive growing seasons (2011–2013). Irrigation treatments consisted of a control, irrigation applied to fully satisfy crop water requirements (100% ETC), and two RDI treatments, irrigation applied to 75% ETC (RDI-75) and 50% ETC (RDI-50). These three treatments were applied during fruit-growth slowdown periods corresponding to Stages II and III in almond and Stage II in peach and plum. Yield and fruit quality traits were determined. The effect of RDI differed between species. Yield and fruit size were reduced significantly only in peach under RDI-50. Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content. Plum quality also improved but the effects were significant only in the second and third years. Similar results were recorded in almond kernel, but their epidermal grooves were deeper under RDI-50, and this may have affected their commercial value. It is concluded that water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield.

 

关键词： fruit quality / fruit yield / Prunus domestica / Prunus dulcis / Prunus persica / regulated deficit irrigation    

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The value of epigenetic markers in esophageal cancer

Xiao-Mei ZHANG, Ming-Zhou GUO,

《医学前沿（英文）》 2010年 第4卷 第4期   页码 378-384 doi: 10.1007/s11684-010-0230-3

摘要： Developing esophageal cancer is a multi-step process that begins with the accumulation of genetic and epigenetic alterations, and leads to the activation of oncogenes and the inactivation or loss of tumor suppressor genes (TSG). In addition to genetic alteration, epigenetic modifications, and in particular DNA methylation, are recognized as a common molecular alteration in human tumors. In esophageal cancer, aberrant methylation of promoter regions occurs not only in advanced cancer, but also in premalignant lesions. DNA methylation is related to survival time and sensitivity of chemoradiotherapy. This review is mainly focused on epigenetic changes in esophageal cancer and the value of early detection for patient prognosis, treatment choices, and potential targeting therapy.

关键词： epigenetics     DNA methylation     esophageal cancer     dysplasia    

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environmental exposure-induced spermatozoal small noncoding RNA alteration meditates the intergenerational epigenetic

《医学前沿（英文）》 2022年 第16卷 第2期   页码 176-184 doi: 10.1007/s11684-021-0885-y

摘要： Studies of human and mammalian have revealed that environmental exposure can affect paternal health conditions as well as those of the offspring. However, studies that explore the mechanisms that meditate this transmission are rare. Recently, small noncoding RNAs (sncRNAs) in sperm have seemed crucial to this transmission due to their alteration in sperm in response to environmental exposure, and the methodology of microinjection of isolated total RNA or sncRNAs or synthetically identified sncRNAs gradually lifted the veil of sncRNA regulation during intergenerational inheritance along the male line. Hence, by reviewing relevant literature, this study intends to answer the following research concepts: (1) paternal environmental factors that can be passed on to offspring and are attributed to spermatozoal sncRNAs, (2) potential role of paternal spermatozoal sncRNAs during the intergenerational inheritance process, and (3) the potential mechanism by which spermatozoal sncRNAs meditate intergenerational inheritance. In summary, increased attention highlights the hidden wonder of spermatozoal sncRNAs during intergenerational inheritance. Therefore, in the future, more studies should focus on the origin of RNA alteration, the target of RNA regulation, and how sncRNA regulation during embryonic development can be sustained even in adult offspring.

关键词： small noncoding RNAs     epigenetic inheritance     paternal intergenerational inherence     extracellular vesicles    

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Recent advances in fruit crop genomics

Qiang XU,Chaoyang LIU,Manosh Kumar BISWAS,Zhiyong PAN,Xiuxin DENG

《农业科学与工程前沿（英文）》 2014年 第1卷 第1期   页码 21-27 doi: 10.15302/J-FASE-2014002

摘要： In recent years, dramatic progress has been made in the genomics of fruit crops. The publication of a dozen fruit crop genomes represents a milestone for both functional genomics and breeding programs in fruit crops. Rapid advances in high-throughput sequencing technology have revolutionized the manner and scale of genomics in fruit crops. Research on fruit crops is encompassing a wide range of biological questions which are unique and cannot be addressed in a model plant such as . This review summarizes recent achievements of research on the genome, transcriptome, proteome, miRNAs and epigenome of fruit crops.

关键词： fruit crops     fruit biology     gene function     genomics    

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Machine vision-based automatic fruit quality detection and grading

《农业科学与工程前沿（英文）》 doi: 10.15302/J-FASE-2023532

摘要：

● A machine vision-based prototype system was developed for fruit grading.

关键词： Computer and machine vision     convolution neural network     deep learning     defective fruit detection     fruit grading     microcontroller    

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FUNCTIONAL GAIN OF FRUIT NETTED-CRACKING IN AN INTROGRESSION LINE OF TOMATO WITH HIGHER EXPRESSION OF

《农业科学与工程前沿（英文）》 2021年 第8卷 第2期

摘要：

Fruit cracking is a major disorder that affects the integrity of fruit and reduces the commercial value of tomato and other fleshy fruit. Here, we have found a novel fruit ‘netted-cracking’ (FNC) phenotype in tomato introgression line IL4-4 which is present in neither the donor parent (LA0716) nor the receptor parent (M82). An F2 population was generated by crossing IL4-4 with M82 to genetically characterize the FNC gene and this showed that a single dominant gene determined fruit netted-cracking. Further map-based cloning narrowed down the FNC locus to a 230 kb region on chromosome 4. Sequencing and annotation analysis show that FNC(Solyc04 g082540) was the most likely candidate gene. Functional characterization of FNC by overexpressing FNCAC and FNCIL4-4resulted in the fruit netted-cracking phenotype, suggesting that the FNC transcript level results in the functional gain of fruit netted-cracking. These findings were further confirmed by FNC ortholog in netted-cracking pepper and melon, indicating a common regulatory mechanism in different plant species. Furthermore, cytoplasm and nucleus-localized FNC indicates increased expression of genes involved in suberin, lignin, lipid transport and cell wall metabolism. These findings provide novel genetic insights into fruit netted-cracking and offer a way to promote molecular improvement toward cracking resistant cultivars.

 

关键词： fine mapping / fruit netted-cracking / introgression line / transcript level    

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我国果树业生产现状和待研究的问题

束怀瑞

《中国工程科学》 2003年 第5卷 第2期   页码 45-48

摘要：

介绍了我国果树资源及果树产业、科研当前水平；阐述了有关果业发展拟研究的五个问题：（1）果树传统品种组群与现代化生产及专业化；（2）果树发展与生态环境建设；（3）重视果树根系研究；（4）果品加工发展要加速研究与中试，加工产业发展要注意科学进程和大、中、小企业结合；（5）建立果品优质生产工程的技术体系。具体包括：品种组合与专业化，“世界品种”，名特优品种的不断选育，无公害基地的环境保护，根系研究对持续发展和提高产量品质的潜力，营养基因型根系，生根基因，建立质量工程技术体系，果品加工业的逐步进程等。

关键词： 果树资源     品种组合     果树根系     果品加工     果树优质工程技术体系    

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YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

Rachid RAZOUK, Abdellah KAJJI, Anas HAMDANI, Jamal CHARAFI, Lahcen HSSAINI, Said BOUDA

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 583-593 doi: 10.15302/J-FASE-2020325

摘要： The effects of regulated deficit irrigation (RDI) on the performance of almond cv. Tuono, peach cv. JH-Hall and plum cv. Stanley were assessed on the Saiss Plain (NW, Morocco) over three consecutive growing seasons (2011–2013). Irrigation treatments consisted of a control, irrigation applied to fully satisfy crop water requirements (100% ET ), and two RDI treatments, irrigation applied to 75% ET (RDI-75) and 50% ET (RDI-50). These three treatments were applied during fruit-growth slowdown periods corresponding to Stages II and III in almond and Stage II in peach and plum. Yield and fruit quality traits were determined. The effect of RDI differed between species. Yield and fruit size were reduced significantly only in peach under RDI-50. Fruit quality improved in this species in the first year of the experiment, with an increase of sugar/acid ratio and polyphenol content. Plum quality also improved but the effects were significant only in the second and third years. Similar results were recorded in almond kernel, but their epidermal grooves were deeper under RDI-50, and this may have affected their commercial value. It is concluded that water can be saved during the fruit-growth slowdown period by up to 25% in peach and 50% in almond and plum with improvements in fruit quality without affecting total yield.

关键词： fruit quality     fruit yield     Prunus domestica     Prunus dulcis     Prunus persica     regulated deficit irrigation    

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苹果栽培的世界性动向——提高果品质量

学士钊

《中国工程科学》 2001年 第3卷 第6期   页码 81-88

摘要：

由数量型向质量型转变，是苹果栽培的世界性动向。栽培者应该放弃只追求果品高额产量的过时做法，实施每公顷只产30 000 kg ，以达到最高的果品质量为目标，来保持果园的良性发展和增强果品抢占市场的优势。

关键词： 苹果栽培     世界性动向     果品质量    

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Hydrogen peroxide is correlated with browning in peach fruit stored at low temperature

Zhansheng DING, Shiping TIAN, Xianghong MENG, Yong XU,

《化学科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 363-374 doi: 10.1007/s11705-009-0246-x

摘要： The objective of this present research is to study the biological basis of browning in peach fruit during storage at low temperatures. After being immersed in 0 or 2mmol·L salicylic acid (SA) aqueous solution for 10min, peach fruit (Prunus persica L. cv. Hongtao) were stored at 10°C, 5°C or 0°C with or without shelf life at 25°C. During storage, the progress of browning, lipid per-oxidation, phenol content, activities of polyphenol oxidase (PPO, E.C. 1.14.18.1) and guaiacol peroxidase (POD, EC 1.11.1.7), redox state of ascorbate and glutathione, as well as the content, location and metabolism of hydrogen peroxide (HO) in the fruit were examined. The results indicated that a decrease in HO content was correlated with browning, whereas phenol content and activities of PPO and POD were not correlated with the change in HO content. Moreover, HO content was influenced by different responses of antioxidants at different storage conditions. It was concluded that the main effect of HO on browning was to regulate its appearance and development as a signal molecule, and lower HO content was beneficial to browning.

关键词： beneficial     per-oxidation     appearance     decrease     hydrogen peroxide    

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Innate immune responses in RNA viral infection

Qian Xu, Yuting Tang, Gang Huang

《医学前沿（英文）》 2021年 第15卷 第3期   页码 333-346 doi: 10.1007/s11684-020-0776-7

摘要： RNA viruses cause a multitude of human diseases, including several pandemic events in the past century. Upon viral invasion, the innate immune system responds rapidly and plays a key role in activating the adaptive immune system. In the innate immune system, the interactions between pathogen-associated molecular patterns and host pattern recognition receptors activate multiple signaling pathways in immune cells and induce the production of pro-inflammatory cytokines and interferons to elicit antiviral responses. Macrophages, dendritic cells, and natural killer cells are the principal innate immune components that exert antiviral activities. In this review, the current understanding of innate immunity contributing to the restriction of RNA viral infections was briefly summarized. Besides the main role of immune cells in combating viral infection, the intercellular transfer of pathogen and host-derived materials and their epigenetic and metabolic interactions associated with innate immunity was discussed. This knowledge provides an enhanced understanding of the innate immune response to RNA viral infections in general and aids in the preparation for the existing and next emerging viral infections.

关键词： innate immune     viral infection     intercellular signaling     metabolic changes     epigenetic changes    

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标题 作者 时间 类型 操作

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETICMODIFICATIONS

期刊论文

RECENT ADVANCES IN THE REGULATION OF CLIMACTERIC FRUIT RIPENING: HORMONE, TRANSCRIPTION FACTOR AND EPIGENETICMODIFICATIONS

Yinglin JI, Mingyang XU, Aide WANG

期刊论文

Genome-wide identification and expression analysis of the β-amylase genes strongly associated with fruitdevelopment, ripening, and abiotic stress response in two banana cultivars

Hongxia MIAO,Peiguang SUN,Yulu MIAO,Juhua LIU,Jianbin ZHANG,Caihong JIA,Jingyi WANG,Zhuo WANG,Zhiqiang JIN,Biyu XU

期刊论文

Epigenetic dysregulation in hepatocellular carcinoma: focus on polycomb group proteins

null

期刊论文

YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

期刊论文

The value of epigenetic markers in esophageal cancer

Xiao-Mei ZHANG, Ming-Zhou GUO,

期刊论文

environmental exposure-induced spermatozoal small noncoding RNA alteration meditates the intergenerational epigenetic

期刊论文

Recent advances in fruit crop genomics

Qiang XU,Chaoyang LIU,Manosh Kumar BISWAS,Zhiyong PAN,Xiuxin DENG

期刊论文

Machine vision-based automatic fruit quality detection and grading

期刊论文

FUNCTIONAL GAIN OF FRUIT NETTED-CRACKING IN AN INTROGRESSION LINE OF TOMATO WITH HIGHER EXPRESSION OF

期刊论文

我国果树业生产现状和待研究的问题

束怀瑞

期刊论文

YIELD AND FRUIT QUALITY OF ALMOND, PEACH AND PLUM UNDER REGULATED DEFICIT IRRIGATION

Rachid RAZOUK, Abdellah KAJJI, Anas HAMDANI, Jamal CHARAFI, Lahcen HSSAINI, Said BOUDA

期刊论文

苹果栽培的世界性动向——提高果品质量

学士钊

期刊论文

Hydrogen peroxide is correlated with browning in peach fruit stored at low temperature

Zhansheng DING, Shiping TIAN, Xianghong MENG, Yong XU,

期刊论文

Innate immune responses in RNA viral infection

Qian Xu, Yuting Tang, Gang Huang

期刊论文