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Chemical Research in Chinese Universities 2019年第5期35卷 823-829页

作者： NIE Changping YANG Jun WU Dan WAN Luping LIANG Guangping Department of Pharmacy Zunyi Medical and Pharmaceutical CollegeZunyi 563006P.R.China Department of Neurology the Fifth People's Hospital of Zunyi CityZunyi 563000P.R.China

Tlie inhibitory actions of ethyl acetate,n-butanol and water fractions from actinidia chinensis Radix (A. chinensis Radix) ethanol extracts on glucosidase were investigated. We found that the inhibitory activity of different ethanol extract fractions on α-glucosidase is concentration-dependent. At the same concentration, the ethyl acetate and n-butaiiol fractions showed higher inliibitory activities on gglucosidase in comparison witli acarbose. We then determined the chemical constituents of tlie ethyl acetate and n-butanol fractions through ultra performance liquid cliromatography-triple-time of flight/mass spectrometry(UPLC-Triple-TOF/MS). Based on the mass spectrometry analysis and the databases Scitinder and Reaxys, 21 compoiinds(A1-A21) were identified from the ethyl acetate fraction. In addition, 11 of those compounds(A2, A3, A5, A6, A8, A10, A11, A13, A15, A19, A20) were identified for the first time from A. chinensis Radix. We also identified 14 compounds(A22-A32 and A4-A6) from tlie w-butanol fraction and compound A29 is a new natural product. From the n-butanol fraction, 7 additional compounds (A22, A25, A27, A28, A30-A32) were identified from A. chinensis Radix for the first time.

关键词： actinidia chinensis Radix Extract /Glucosidase Ultra perfbnnance liquid chromatography-triple-time of flight/mass spectrometry(UPLC-Triple-TOF/MS)

Kiwifruit(actinidia chinensis 'Hongyang') cytosolic ascorbate peroxidases(AcAPX1 and AcAPX2) enhance salinity tolerance in Arabidopsis thaliana

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Journal of Integrative Agriculture 2022年第4期21卷 1058-1070页

作者： GUO Xiu-hong HE Yan ZHANG Yu WANG Yi HUANG Sheng-xiong LIU Yong-sheng LI Wei Key Laboratory for Bio-resource and Eco-environment of Ministry of Education College of Life Sciences/State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengdu 610064P.R.China School of Horticulture Anhui Agricultural UniversityHefei 230036P.R.China School of Food and Biological Engineering Hefei University of TechnologyHefei 230009P.R.China

Ascorbate peroxidase(APX) plays a key role in scavenging reactive oxygen species(ROS) in higher plants. However, there is very little information available on the APXs in kiwifruit(actinidia), which is an economically and nutritionally important horticultural crop with exceptionally high ascorbic acid(AsA) accumulation. This study aims to identify and characterize two cytosolic APX genes(AcAPX1 and AcAPX2) derived from A. chinensis ‘Hongyang’. The constitutive expression pattern was determined for both AcAPX1 and AcAPX2, and showed relatively higher expression abundances of AcAPX1 in leaf and AcAPX2 in root. Transcript levels of AcAPX1 and AcAPX2 were increased in kiwifruit roots treated with Na Cl. Subcellular localization assays using GFP-fusion proteins in Arabidopsis protoplasts showed that both AcAPX1 and AcAPX2 are targeted to the cytosol. Recombinant AcAPX1 or AcAPX2 proteins were successfully expressed in the prokaryotic expression system and their individual ascorbate peroxidase activities were determined. Finally, constitutive over-expression of AcAPX1 or AcAPX2 could dramatically increase total As A, glutathione level and salinity tolerance under Na Cl stress in Arabidopsis thaliana. Our findings revealed that cytosolic AcAPX1/2 may play an important protective role in the responses to unfavorable environmental stimuli in kiwifruit.

关键词： actinidia ascorbic acid ascorbate peroxidase salinity

Exogenous cytokinin application to actinidia chinensis var. deliciosa ‘Hayward’ fruit promotes fruit expansion through water uptake

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Horticulture Research 2017年第1期4卷 131-141页

作者： Simona Nardozza Helen L Boldingh Mark W Wohlers Andrew P Gleave Zhiwei Luo Guglielmo Costa Elspeth A MacRae Michael J Clearwater Annette C Richardson The New Zealand Institute for Plant&Food Research Limited(PFR) Mt Albert Research CentrePrivate Bag 92169AucklandNew Zealand PFR Ruakura Research CentrePrivate Bag 3123HamiltonNew Zealand Dipartimento di Scienzie Agrarie Universitàdi BolognaVia Fanin 46Bologna40127Italy PFR Te Puke Research CentreTe Puke3182New Zealand PFR Kerikeri Research CentrePrivate Bag 23KerikeriNew Zealand Scion Te Papa Tipu Innovation ParkPrivate Bag 3020RotoruaNew Zealand University of Waikato School of SciencePrivate Bag 3105HamiltonNew Zealand

Exogenous application of a cytokinin-like compound forchlorfenuron(CPPU)can promote fruit growth,although often at the expense of dry matter(DM),an important indicator of fruit *** chinensis ***‘Hayward’fruit are very responsive to CPPU treatments,but the mechanism underlying the significant fruit weight increase and associated decrease in DM is *** this study,we hypothesised that CPPU-enhanced growth increases fruit carbohydrate demand,but limited carbohydrate supply resulted in decreased fruit *** fruit development,CPPU effects on physical parameters,metabolites,osmotic pressure and transcriptional changes were assessed under conditions of both standard and a high carbohydrate *** showed that CPPU increased fruit fresh weight but the dramatic DM decrease was not carbohydrate *** glucose and fructose concentrations contributed to an increase in soluble carbohydrate osmotic pressure,which was correlated with increased water accumulation in CPPU-treated fruit and up-regulation of water channel aquaporin gene PIP2.4 at 49 days after *** analysis suggested that the molecular mechanism contributing to increased glucose and fructose concentrations was altered by carbohydrate *** standard carbohydrate supply,the early glucose increase in CPPU fruit was associated with reduced starch synthesis and increased starch *** carbohydrate supply was high,the early glucose increase in CPPU fruit was associated with a general decrease in starch synthesis but up-regulation of vacuolar invertase and fructokinase *** conclude that CPPU affected fruit expansion by increasing the osmotically-driven water uptake and its effect was not carbohydrate supply-limited.

关键词： CPPU actinidia expansion

Differential regulation of the anthocyanin profile in purple kiwifruit(actinidia species)

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Horticulture Research 2019年第1期6卷 1746-1761页

作者： Yongyan Peng Kui Lin-Wang Janine M.Cooney Tianchi Wang Richard V.Espley Andrew C.Allan School of Biological Sciences University of AucklandAucklandNew Zealand The New Zealand Institute for Plant and Food Research Limited Mt AlbertAucklandNew Zealand The New Zealand Institute for Plant and Food Research Limited East Street3214 HamiltonNew Zealand

Anthocyanins are a group of secondary metabolites that colour fruit and flowers orange,red,purple or blue depending on a number of factors,such as the basic structure,co-pigmentation,metal ion complexation and vacuolar *** biosynthesis of anthocyanin is regulated at the transcriptional level by a group of transcription factors,the MYB–bHLH–WD40(MBW)*** this study,the purple colouration in several kiwifruit(actinidia)species was identified and characterised as red cyanidin-based and blue delphinidin-based *** differential pigmentation in the skin and flesh can be attributed to the differential ratio of cyanidin and delphinidin derivatives accumulated in the total anthocyanin *** expression of anthocyanin biosynthetic genes chalcone synthase(CHS),flavonoid 3-O-glucosyltransferase(F3GT),flavonoid 3′-hydroxylase(F3′H)and flavonoid 3′5′-hydroxylase(F3′5′H)is crucial for anthocyanin ***,the balance of expression of the F3′H and F3′5′H genes appears responsible for the ratio of cyanidin and delphinidin derivatives,while a lack of CHS,F3GT and MYB110 expression is responsible for a lack of total *** transcriptional regulation of the F3′H and F3′5′H promoters by the R2R3 MYB transcription factor MYB110 is markedly different in tobacco transient *** kiwifruit MYB10 or MYB110 are over-expressed in actinidia chinensis both cyanidin-based and delphinidin-based anthocyanins are elevated,but F3′H and F3′5′H genes are not strongly correlated with MYB *** results suggest that the core kiwifruit anthocyanin pathway genes are dependent on characterised MYB transcription factors,while other regulatory proteins are more directly responsible for the expression of the F3′H and F3′5′H genes.

关键词： actinidia orange flowers

A high-quality actinidia chinensis(kiwifruit)genome

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Horticulture Research 2019年第1期6卷 269-277页

作者： Haolin Wu Tao Ma Minghui Kang Fandi Ai Junlin Zhang Guanyong Dong Jianquan Liu Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education and State Key Laboratory of Hydraulics and Mountain River Engineering College of Life SciencesSichuan UniversityChengdu 610065China The Limited Agriculture Company of Xinyuan Sacred Fruit ShifangDeyang 618409 SichuanChina State Key Laboratory of Grassland Agro-Ecosystem Institute of Innovation EcologyLanzhou UniversityLanzhou 730000China

actinidia chinensis(kiwifruit)is a perennial horticultural crop species of the actinidiaceae family with high nutritional and economic *** versions of the *** genomes have been previously assembled,based mainly on relatively short ***,we report an improved chromosome-level reference genome of ***(v3.0),based mainly on PacBio long reads and Hi-C *** high-quality assembled genome is 653 Mb long,with 0.76%*** least 43%of the genome consists of repetitive sequences,and the most abundant long terminal repeats were further identified and account for 23.38%of our novel *** has clear improvements in contiguity,accuracy,and gene annotation over the two previous versions and contains 40,464 annotated protein-coding genes,of which 94.41%are functionally ***,further analyses of genetic collinearity revealed that the kiwifruit genome has undergone two whole-genome duplications:one affecting all Ericales families near the K-T extinction event and a recent genus-specific *** reference genome presented here will be highly useful for further molecular elucidation of diverse traits and for the breeding of this horticultural crop,as well as evolutionary studies with related taxa.

关键词： actinidia breeding high

Advances in the study of the systematics of actinidia Lindley

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Frontiers in Biology 2009年第1期4卷 55-61页

作者： Xinwei LI Jianqiang LI Djaja Djendoel SOEJARTO Herbarium(HIB) Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China Botany Department Field Museum1400 S.Lake Shore Dr.ChicagoIL60605-2496 and Program for Collaborative Research in the Pharmaceutical SciencesCollege of PharmacyUniversity of Illinois at ChicagoChicagoIL 60612USA

actinidia(actinidiaceae)is of economic importance for its edible *** taxonomy divided the genus into four sections,Leiocarpae Dunn,Maculatae Dunn,Strigosae Li,and Stellatae ***,phylogenetic studies based on morphology and molecular markers have posed challenges to the four-section *** appears that the natural classification of the genus points to the existence of two groups,one comprising Leiocarpae,and the other Maculatae,Strigosae,and ***-or low-copy genes would probably be useful in untangling the perplexity and the reticulate evolution of the ***,any phylogenetic studies must be firmly based on sound taxonomy and *** sampling throughout the distribution range of the taxa should be carried out in order to study the variation pattern of the morphology and,ultimately,to clarify the confusion existing in some taxa.A combination of morphometrics and molecular data is highly desirable for resolving the uncertainty in actinidia taxonomy.

关键词： actinidia actinidiaceae systematics taxonomy confusion

Dynamic changes of flavonoids in actinidia valvata leaves at different growing stages measured by HPLC-MS/MS

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Chinese Journal of Natural Medicines 2016年第1期14卷 66-72页

作者： DU Qiao-Hui ZHANG Qiao-Yan HAN Ting JIANG Yi-Ping PENG Cheng XIN Hai-Liang Department of Pharmacognosy School of PharmacySecond Military Medical University Key Laboratory of Standardization of Chinese Herbal Medicines of the Ministry of Education College of PharmacyChengdu University of Traditional Chinese Medicine

Flavonoids are a large group of phenolic secondary metabolites havinga wide range of biochemical and pharmacological *** analysis of flavonoid profiles in the genus actinidia,which has not been intensively conducted,is useful to a better understanding of the pattern and distribution of *** the present work,a liquid chromatography-electrospray ionization-tandem mass spectrometry(LC-ESI-MS/MS)method was developed to profile the flavonoids,which was then used to determine the dynamic change of 17 biologically active flavonoids in the leaves of actinidia valvata at the main growing stages,including glucuronides and acylated di-and triglycosides of *** contents of flavonoid triglycosides were significantly higher than other *** highest concentrations of kaemperol glycosides were observed in June,while other flavonoids showed highest concentrations in *** the other hand,the contents of four isorhamnetin glycosides were increased sharply in September to *** flavonoid profiles seem to be related to temperature,UV-B,and water *** studies are required to examine the functions of flavonoids in the actinidia valvata and the underlying molecular mechanisms of actions.

关键词： actinidia valvata LC—MS/MS Flavonoids Dynamic change Kaempferol triglycosides Growing stage

Effects of Stored Pollens from Wild <i>actinidia eriantha</i>Vines on Some Fruit Quality Traits

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Agricultural Sciences 2017年第6期8卷 465-478页

作者： Umut Ahmet Seyrek Mei Luo Min Zhong Chunhui Huang Junjie Tao Xueyan Qu Xiaobiao Xu College of Agronomy Jiangxi Agricultural University Nanchang China

Our study was conducted to determine In vitro germination ability of pollens from 25 wild actinidia eriantha genotypes after one year freeze storage, afterwards we examined fertilization ability of stored pollens of 8 genotypes selected according to In vitro test results from aforementioned 25 genotypes, and finally investigated effects of stored viable pollens from “MH67”, “MH55”, “MH48” and “MH45” genotypes on fruit quality characters of the female experimental plant “M3” as the main purpose. Non-pollinated “M3” kiwifruit plant was taken as control. We found that In vitro germination and fertilization ability of different stored pollen sources, and also fruit quality characters including dry matter, total sugar, titratable acid, vitamin C, total polyphenol, total flavonoid, chlorophyll (“a”, “b”, and total) and carotenoid contents except total soluble solid content were significantly different. MH67 and MH45 genotypes were evaluated as the most suitable pollenizers which can be recommended as new candidate cultivars because of long term storage ability and brought about desired fruit quality characters. They also will be investigated more at further breeding studies.

关键词： actinidia eriantha Stored Pollen In vitro Germination Fertilization Fruit Quality Traits

一种花瘿蚊(双翅目:瘿蚊科)与其寄主植物对萼猕猴桃actinidia valvata的相互关系(英文)

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Insect Science 1996年第3期3卷 271-282页

作者：刘志伟,StigLarsson 瑞典农业大学昆虫系瑞典农业大学昆虫系中南林学院森林系株州 412006

猕猴桃属植物actinidia spp,自然分布于中国的亚热带地区。对萼猕猴桃***的花芽受Pseudasphond ylia 瘿蚊属一未知种的寄生而形成花芽虫瘿,这种花芽瘿由于近年来在制药工业上的应用而受到重视。在中国中南地区研究对萼猕猴桃—瘿蚊的相... 详细信息

猕猴桃属植物actinidia spp,自然分布于中国的亚热带地区。对萼猕猴桃***的花芽受Pseudasphond ylia 瘿蚊属一未知种的寄生而形成花芽虫瘿,这种花芽瘿由于近年来在制药工业上的应用而受到重视。在中国中南地区研究对萼猕猴桃—瘿蚊的相互关系过程中,我们的记载表明该造瘿昆虫在一定情形下可能改变其寄主植物的雌雄异株之生殖模式。野外调查与实验证明寄主植物受寄生而形成虫瘿的比例很高。但虫瘿密度却于不同沟谷间,或同一沟谷内不同植株间有异。在二条沟谷内,92％和75％植株分别被寄生,而在第3条沟谷内没有植株受寄生。受寄生的雄性植株只产生虫瘿,而受寄生的雌性植株则产生正常果与虫瘿。有迹象显示当寄主植株有虫瘿形成时其正常果数量也更多。作者认为这可能是昆虫诱导功能上雌雄异株植物形成雄性异株雌雄同株之生殖模式的少数例子

关键词： Pseudasphondylia actinidia androdioecy dioecy flower gall kiwifruit plant-herbi-vore interaction

Preliminary Study on Prevention and Control against Pests in actinidia Plants in Lushan Botanical Garden of China

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Plant Diseases and Pests 2013年第4期4卷 29-31页

作者： Yu Zhijun Liu Jianjun Song Li Hu Zongwen Lushan Botanical Garden in Jiangxi Province Chinese Academy of Sciences Shimenjian Management Office Jiangxi Lushan Garden Forestry Bureau

Survey on pests in actinidia plants in Lushan botanical garden of China found that the insects causing damage on actinidia plants mainly were grasshop- pers, scarabs, stinkbugs, leafhoppers, larvae of butterflies and moths, leaf milers and borers, belonging to 50 species and 23 families. According to the regularity of their reproduction and development, as well as the characteristics of pest d mnages on plants, chemical agents were applied in flower bud expansion stage and early fruit setting stage of actinidia plants. The results showed that rational application of chemical agents before and after flowering stage could effectively control largescale occurrence of pests.

关键词： Lushan botanical garden actinidia Pest control