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Grafting effects on bioactive compounds,chemical and agronomic traits of‘Corbarino’tomato grown under greenhouse healthy conditions

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Horticultural Plant Journal 2023年第2期9卷 273-284页

作者： Mario Parisi Alfonso Pentangelo Antonietta D’Alessandro Giovanna Festa Gianluca Francese Alejandra Navarro Vincenzo Onofaro Sanajà Giuseppe Mennella CREA research Centre for vegetable and Ornamental crops Via Cavalleggeri 25PontecagnanoSA 84098Italy

In tomatoes,grafting onto resistant rootstocks represents an effective strategy to control several soil-borne diseases that reduce crop profitability,especially for landraceswith little or no resistance tomultiple pathogens/*** this study,the high-value‘Corbarino’tomato landrace was grafted onto seven commercial Solanum interspecific rootstocks to evaluate graft compatibility,yield performance,and qualitative characteristics under greenhouse healthy *** rootstocks were themost effective in improving fruit yield without negatively affecting the carpometric,technological,and health-related traits of the traditional tomato.‘Dinafort’rootstock increased fresh and dry yield,harvest index,and fruit/clusters,while mean fruit weight,shape index,total and soluble solid content,simple sugars,organic acids,flavonoids,ascorbic acid,and trans-lycopene content did not differ with respect to the ungrafted‘Corbarino’.‘Interpro’rootstock also showed promising results for the overall yield and quality traits,although it reduced the trans-lycopene content in the fruit.‘Silex’rootstock showed the highest harvest index as result of decreased *** fruit quality induced by‘Silex’was satisfactory and high levels of simple sugars,flavonoids,ascorbic acid,and trans-lycopene were also ***,graft success,especially for‘Dinafort’and‘Silex’,needs to be improved by investigating more suitable methods for seedling production,grafting,acclimatization,etc.

关键词： Solanum lycopersicum L Local variety Yield Graft compatibility Sugars Organic acids Health-related compounds

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Comprehensive analysis of NAC transcription factors and their expression during fruit spine development in cucumber (Cucumis sativus L.)

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Horticulture research 2018年第1期5卷 556-569页

作者： Xingwang Liu Ting wang Ezra Bartholomew Kezia Black Mingming Dong Yaqi Zhang Sen Yang Yanling Cai Shudan Xue Yiqun Weng Huazhong Ren Beijing Key Laboratory of Growth and Developmental Regulation for Protected vegetable crops College of HorticultureChina Agricultural University100193BeijingP.R.China Department of Horticulture USDA-ARSVegetable Crops Research UnitUniversity of Wisconsin-MadisonWI53706USA

The cucumber(Cucumis sativus L.)is an important vegetable crop worldwide,and fruit trichomes or spines are an important trait for external fruit *** mechanisms underlying spine formation are not well understood,but the plant-specific NAC family of transcription factors may play important roles in fruit spine initiation and *** this study,we conducted a genome-wide survey and identified 91 NAC gene homologs in the cucumber *** analysis classified these genes into six subfamilies;each contained a varying number of NAC family members with a similar intron–exon structure and conserved *** real-time PCR analysis revealed tissue-specific expression patterns of these genes,including 10 and 12 that exhibited preferential expression in the stem and fruit,*** of the 91 NAC genes showed higher expression in the wild-type plant than in its near-isogenic trichome mutant,suggesting their important roles in fruit spine *** application of four plant hormones promoted spine formation and increased spine density on the cucumber fruits;several NAC genes showed differential expression over time in response to phytohormone treatments on cucumber fruit,implying their essential roles in fruit-trichome *** the NAC genes identified,12 were found to be targets of 13 known cucumber ***,these findings provide a useful resource for further analysis of the interactions between NAC genes and genes underlying trichome organogenesis and development during fruit spine development in cucumber.

关键词： development. analysis spine

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Efficient Transposition of the Retrotransposon Tnt1 in Cucumber(Cucumis sativus L.)

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Horticultural Plant Journal 2018年第3期4卷 111-116页

作者： ZHANG Qi DU Hui LV Duo XIAO Tingting PAN Jian HE Huanle WANG Gang CAI Run WENG Yiqun PAN Junsong Plant Science Department School of Agriculture and BiologyShanghai Jiao Tong University USDA-ARS Vegetable crops Research UnitHorticulture DepartmentUniversity of Wisconsin

Tnt1 is an active retrotransposon originally identified in tobacco(Nicotiana tabacum L.)(Grandbastien et al.,1989),but its transposition activity could be activated through tissue culture in other plant *** insertions are stable and inheritable in the progeny,which has made it a valuable and versatile tool for developing insertional mutagenesis libraries in several plant ***,we explored its utility for mutagenesis in cucumber(Cucumis sativus L.).T_3 Tnt1 transgenic cucumber plants were subjected to tissue culture to regenerate self-pollinated *** PCR and analyses and Southern hybridization,we found regenerated plants maintained the original Tnt1 insertion and created new insertions suggesting characteristic re-transposition activity of Tnt1 during this *** genome walking,some flanking sequences of Tnt1 insertions were recovered in regenerated *** results demonstrated that Tnt1 could be stably inherited and re-transposable during tissue culture in cucumber and that it is feasible to use for developing an insertional mutagenesis library for cucumber.

关键词： cucumber Tnt1 retrotransposon tissue culture mutagenesis library

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Low temperature upregulates cwp expression and modifies alternative splicing patterns,increasing the severity of cwp-induced tomato fruit cuticular microfissures

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Horticulture research 2019年第1期6卷 183-194页

作者： Noam Chechanovsky Ran Hovav Rina Frenkel Adi Faigenboim Yelena Eselson Marina Petreikov Michal Moy Shmuel Shen Arthur A.Schaffer Department of vegetable and Field crops Institute of Plant SciencesAgricultural Research OrganizationRishon LeZionIsrael

The cwp(cuticular water permeability)gene controls the development of cuticular microfissuring and subsequent fruit dehydration in *** gene underwent silencing in the evolution of the fleshy cultivated tomato but is expressed in the primitive wild tomato *** introgression of the expressed allele from the wild ***(cwph)into the cultivated tomato(Solanum lycopersicum)leads to the phenotype of fruit water loss during and following *** this report,we show that low temperature impacts on the severity of the cuticular microfissure phenotype via a combination of effects on both expression and alternative splicing of *** cwp gene,comprising four exons and three introns,undergoes post-transcriptional alternative splicing processes,leading to seven alternative transcripts that differ in reading-frame *** plants expressing each of the alternative transcripts identified the longest reading frame(VAR1)as the functional splice *** temperature led to a strong upregulation of cwph expression,compounded by an increase in the relative proportion of the functional VAR1 transcript,leading to increased severity of microfissuring of the *** summary,we demonstrate the molecular mechanism behind the horticultural phenomenon of the low-temperature effect on cuticular microfissures in the dehydrating tomato.

关键词： severity expressing subsequent

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Anaerobic soil disinfestation:A chemical-independent approach to pre-plant control of plant pathogens

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Journal of Integrative Agriculture 2015年第11期14卷 2309-2318页

作者： S L Strauss D A Kluepfel USDA-ARS crops Pathology and Genetics research unit University of California

Due to increasing regulations and restrictions, there is an urgent need to develop effective alternatives to chemical-dependent fumigation control of soilborne pests and pathogens. Anaerobic soil disinfestation （ASD） is one such alternative showing great promise for use in the control of soilborne pathogens and pests. This method involves the application of a carbon source, irrigation to field capacity, and covering the soil with a plastic tarp. While the mechanisms of ASD are not completely understood, they appear to be a combination of changes in the soil microbial community composition, production of volatile organic compounds, and the generation of lethal anaerobic conditions. The variety of materials and options for ASD application, including carbon sources, soil temperature, and plastic tarp type, influence the efficacy of pathogen sup- pression and disease control. Currently, both dry （e.g., rice bran） and liquid （e.g., ethanol） carbon sources are commonly used, but with different results depending on environmental conditions. While solarization is not an essential component of ASD, it can enhance efficacy. Understanding the mechanisms that mediate biological changes occurring in the soil during ASD will facilitate our ability to increase ASD efficacy while enhancing its commercial viability.

关键词： anaerobic soil disinfestation biological soil disinfestation soilborne pathogens fumigation

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Functional Characterization of the Promoter and Second Intron of CUM1 During Flower Development in Cucumber(Cucumis sativus L.)

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Horticultural Plant Journal 2018年第3期4卷 103-110页

作者： GU Ran LIU Xiaofeng ZHAO Wensheng YAN Shuangshuang SUN Linhan WU Binning ZHANG Xiaolan Department of vegetable Sciences Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable CropsChina Agricultural University

The characterization of flower specific promoter is critical during flower development by cucumber transformation ***(AG)is an organ identity gene that is required for carpel and stamen development in *** promoter and second intron of AG contain multiple regulatory elements that confer proper spatial and temporal *** is an important vegetable with unisexual *** MADS-box 1(CUM1)is the AG homolog in cucumber,belonging to the eu AG lineage along with *** situ hybridization showed that CUM1 was specifically expressed in the stamens and carpels of *** staining indicated that the second intron of CUM1 confers stamen-specific expression,while the promoter of CUM1 drives both stamen-and carpel-specific expression during the early stages of flower development,but is restricted to carpel-and connectivum-specific expression during the late stages of flower ***,a yeast one-hybrid assay demonstrated that two auxin response factors(Cs ARF13 and Cs ARF17)had bound directly to the second intron of *** data suggest that different regulatory circuits operate in AG homologs in plant species with distinct sex types.

关键词： cucumber CUM1 promoter intron in situ hybridization GUS staining yeast one-hybrid

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The root meristem growth factor BrRGF6 positively regulates Chinese cabbage to infection of clubroot disease caused by Plasmodiophora Brassicae

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Horticulture research 2023年第3期10卷 72-84页

作者： Wenjie Ge Jing Zhang Hui Feng Yilian Wang Ruiqin Ji Liaoning Key Laboratory of Genetics and Breeding for Cruciferous vegetable crops College of HorticultureShenyang Agricultural UniversityShenyangLiaoning 110866China vegetable research Institute Liaoning Academy of Agricultural SciencesShenyangLiaoning 110161China

Chinese cabbage has a high annual demand in ***,clubroot disease caused by the infection of Plasmodiophora brassicae seriously affects its *** analysis identified a root meristem growth factor 6(BrRGF6)as significantly up-regulated in Chinese cabbage roots infected with Plasmodiophora *** reverse-transcription polymerase chain reaction and in situ hybridization analysis showed higher BrRGF6 expression in susceptible materials than in resistant *** Plasmodiophora brassicae infection,BrRGF6 expression was significantly up-regulated,especially in susceptible *** function analysis showed that the roots of Arabidopsis mutant rgf6 grew faster than the wild-type,and delayed the infection progress of Plasmodiophora brassicae.A Protein,nuclear transcription factor Y subunit C(BrNF-YC),was screened from yeast two-hybrid library of Chinese cabbage induced by Plasmodiophora brassicae,and verified to interact with BrRGF6 by yeast two-hybrid *** one-hybrid andβGlucuronidase activity analysis showed that BrNF-YC could directly bind to and strongly activate the promoter of *** verification showed that BrRGF6 or BrNF-YC silenced Chinese cabbage significantly decreased the expression of BrRGF6,accelerated root development,and reduced incidence of clubroot ***,after overexpression of BrRGF6 or BrNF-YC,the phenotype showed a reverse ***,BrRGF6 silencing accelerated root growth and enhanced resistance to clubroot disease,which was regulated by BrNF-YC.

关键词： materials. roots infection

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Time-course transcriptome landscape of achene development in lettuce

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Horticultural Plant Journal 2022年第1期8卷 99-109页

作者： Chen Luo Shenglin Wang Kang Ning Zijing Chen Jingjing Yang Yixin Wang Meixia Qi Qian Wang Beijing Key Laboratory of Growth and Developmental Regulation for Protected vegetable crops Department of Vegetable ScienceCollege of HorticultureChina Agricultural UniversityBeijing 100193China

Lettuce(Lactuca sativa L.),which belongs to the large Asteraceae(Compositae)family,breeds by sexual reproduction and produces ***,lettuce seeds are achenes,which are defined as ***,few studies have described the morphological characteristics of the lettuce achenes,and genes essential for achene development are largely unknown in *** investigate the gene activity during achene development and determine the possible mechanisms that influence achene development in lettuce,we performed a time-course transcriptome analysis of lettuce achenes.A total of 27,390 expressed genes were detected at the five achene development *** investigated the gene expression patterns during achene development and identified the enriched biological processes at the corresponding *** Encyclopedia of Genes and Genomes and Gene Ontology analyses revealed a variety of transcriptomic similarities and differences at different achene development ***,transcription factors and phytohormones were found to play important roles during achene ***,we proposed a working model to illustrate the gene expression modules and possible molecular mechanisms underlying achene *** time-course transcriptome data also provide a foundation for future functional studies to reveal the genetic control of achene development in lettuce.

关键词： Lettuce Achene development Transcriptome Fruit Seed Transcription factor

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Breeding for Resistance to Tomato Bacterial Diseases in China:Challenges and Prospects

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Horticultural Plant Journal 2018年第5期4卷 193-207页

作者： WANG Yuqing ZHANG Yaxian GAO Zhipeng YANG Wencai Beijing Key Laboratory of Growth and Developmental Regulation for Protected vegetable crops Department of Vegetable Science College of Horticulture China Agricultural University

Four bacterial diseases including bacterial canker caused by Clavibacter michiganensis subsp. michiganensis, bacterial speck caused by Pseudomonas syringae pv. tomato, bacterial spot caused by at least four Xanthomonas species, and bacterial wilt caused by Ralstonia solanacearum are among the most devastating diseases in tomato(Solanum lycopersicum) production in China. However, almost no commercial cultivars currently growing in the country are resistant to these four bacterial diseases because little effort has been devoted to breeding for resistance. In addition,the existence of great natural variation in each pathogen and the quantitative inheritance of resistance add to the difficulties of developing cultivars with resistance to these diseases. In the past 20 years, molecular markers tightly linked to genes conferring resistance to these four bacterial diseases have been identified or gene-based markers have been developed, which may circumvent some of the problems associated with phenotypic selection for resistance to multiple bacterial pathogens and races. Here we present a review on current status of studies on these diseases and discuss the promise of new technologies in breeding for resistance to these bacterial diseases in China.

关键词： tomato bacterial disease new breeding technology

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Genome-wide identification, characterization, and expression analysis of the SWEET gene family in cucumber

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Journal of Integrative Agriculture 2017年第7期16卷 1486-1501页

作者： HU Li-ping ZHANG Feng SONG Shu-hui TANG Xiao-wei XU Hui LIU Guang-min WANG Ya-qin HE Hong-ju Beijing vegetable research Center Beijing Academy of Agriculture and Forestry Sciences Key Laboratory of Biology and Genetic Improvement of Horticultural crops (North China) Ministry of Agriculture

SWEETs （sugars will eventually be exported transporters） are a novel class of recently identified sugar transporters that play important roles in diverse physiological processes. However, only a few species of the plant SWEETgene family have been functionally identified. Up till now, there has been no systematic analysis of the SWEETgene family in Cucurbitaceae crops. Here, a genome-wide characterization of this family was conducted in cucumber（Cucumis sativus L.）. A total of 17 CsSWEETgenes were identified, which are not evenly distributed over the seven cucumber chromosomes. Cucumber SWEET protein sequences possess seven conserved domains and two putative serine phosphorylation sites. The phylo- genetic tree of the SWEET genes in cucumber, Arabidopsis thaliana, and Oryza sativa was constructed, and all the SWEET genes were divided into four clades. In addition, a number of putative cis-elements were identified in the promoter regions of these CsSWEET genes： nine types involved in phytohormone responses and eight types involved in stress responses. Moreover, the transcript levels of CsSWEETgenes were analyzed in various tissues using quantitative real-time polymerase chain reaction. A majority （70.58%） of the CsSWEET genes were confined to reproductive tissue development. Finally, 18 putative watermelon ClaSWEETgenes and 18 melon CmSWEETgenes were identified that showed a high degree of similarity with CsSWEETgenes. The results from this study provided a basic understanding of the CsSWEETgenes and may also facilitate future research to elucidate the function of SWEET genes in cucumber and other Cucurbitaceae crops.

关键词： cucumber gene expression phylogenetic analysis sugar transporter SWEET watermelon

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