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Plant metabolism paves the way for breeding crops with high nutritional value and stable yield

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Science China(Life Sciences) 2021年第12期64卷 2202-2205页

作者： Cheng Jin Chuanying fang Yuanyuan Zhang alisdair r.f.rnie Jie Luo College of Tropical Crops Hainan UniversityHaikou 572208China Max Planck Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany Centre of Plant Systems Biology and Biotechnology Plovdiv 4000Bulgaria

Plant metabolites often harbor diverse bioactivities;for humans,plant-derived bioactive metabolites are indispensable for ***,plants produce these metabolites to keep themselves *** the domestication and improvement of crops,humans largely focused on increased yield to support population *** example,large seed sizes,high seed weights,and low seed shattering were selected in cereal crops,whereas fruit sizes and shapes were selected in vegetable crops.

关键词： crops breeding Plant

Integrating multiomics data accelerates elucidation of plant primary and secondary metabolic pathways

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aBIOTECH 2023年第1期4卷 47-56页

作者： feng Zhu Weiwei Wen Yunjiang Cheng Saleh Alseekh alisdair r.f.rnie National r&D Center for Citrus Preservation Hubei Hongshan LaboratoryNational Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural CropsKey Laboratory of Horticultural Plant BiologyMinistry of EducationHuazhong Agricultural UniversityWuhan 430070China Max Planck Institute of Molecular Plant Physiology Am Mühlenberg 1Potsdam-Golm 14476Germany Center of Plant Systems Biology and Biotechnology Plovdiv 4000Bulgaria

Plants are the most important sources of food for humans,as well as supplying many ingredients that are of great importance for human *** an understanding of the functional components of plant metabolism has attracted considerable *** rapid development of liquid chromatography and gas chromatography,coupled with mass spectrometry,has allowed the detection and characterization of many thousands of metabolites of plant ***,elucidating the detailed biosynthesis and degradation pathways of these metabolites represents a major bottleneck in our ***,the decreased cost of genome and transcriptome sequencing rendered it possible to identify the genes involving in metabolic ***,we review the recent research which integrates metabolomic with different omics methods,to comprehensively identify structural and regulatory genes of the primary and secondary metabolic ***,we discuss other novel methods that can accelerate the process of identification of metabolic pathways and,ultimately,identify metabolite function(s).

关键词： Metabolome Transcriptome Genome Crop improvement

Metabolomics-assisted refinement of the pathways of steroidal glycoalkaloid biosynthesis in the tomato clade

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Journal of Integrative Plant Biology 2014年第9期56卷 864-875页

作者： Kevin Schwahn Leonardo Perez de Souza alisdair r.f.rnie Takayuki Tohge University of Potsdam AG BioinformaticsInstitute for Biochemistry and Biology MaxPlanck-Institute of Molecular Plant Physiology

Steroidal glycoalkaloids（SGAs） are nitrogen-containing secondary metabolites of the Solanum species,which are known to have large chemical and bioactive diversity in *** recent effort and development on LC/MS techniques for SGA profiling have elucidated the main pathways of SGA metabolism in tomato,the problem of peak annotation still remains due to the vast diversity of chemical structure and similar on overlapping of chemical *** we provide a case study of peak classification and annotation approach by integration of species and tissue specificities of SGA accumulation for provision of comprehensive pathways of SGA *** order to elucidate natural diversity of SGA biosynthesis,a total of 169 putative SGAs found in eight tomato accessions（Soianum lycopersicum, ***, ***, ***, ***,***,***,***） and four tissue types were used for correlation *** results obtained in this study contribute annotation and classification of SGAs as well as detecting putative novel biosynthetic branch *** such this represents a novel strategy for peak annotation for plant secondary metabolites.

关键词： fruit ripening glycoalkaloids secondary metabolite Solanum lycopersicum tomato accessions

Complex Assembly and Metabolic Profiling of Arabidopsis thaliana PlantsOverexpressing Vitamin B6 Biosynthesis Proteins

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Molecular Plant 2010年第5期3卷 890-903页

作者： Jan Erik Leuendorf Sonia Osorio Agnieszka Szewczyk alisdair r. fernie Hanjo Hellmann Angewandte Genetik Freie Universitat Berlin 14195 Berlin Germany Max-Planck-lnstitut for Molekulare Pflanzenphysiologie Potsdam-Golm 14476 Germany Pharmaceutical faculty of the Collegium Medicum Jagiellonian University Krakow Poland School of Biological Sciences Washington State University Pullman USA

In plants, vitamin B6 biosynthesis requires the activity of PDX1 and PDX2 proteins. Arabidopsis thaliana encodes for three PDX1 proteins, named PDXI.1, 1.2, and 1.3, but only one PDX2. Here, we show in planta complex assembly of PDX proteins, based on split-YfP and fPLC assays, and can demonstrate their presence in higher complexes of around 750 kDa. Metabolic profiling of plants ectopically expressing the different PDX proteins indicates a negative influence of PDX1.2 on vitamin Be biosynthesis and a correlation between aberrant vitamin B6 content, PDX1 gene expression, and light sensitivity specifically for PDX1.3. These findings provide first insights into in planta vitamin B6 synthase complex assembly and new information on how the different PDX proteins affect plant metabolism.

关键词： Abiotic/environmental stress metabolomics metabolic regulation molecular physiology.

Involvement of the Hexose Transporter Gene LeHT1 and of Sugars in resistance of Tomato to Tomato Yellow Leaf Curl Virus

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Molecular Plant 2013年第5期6卷 1707-1710页

作者： Dagan Sade Yariv Brotman Assa f Eybishtz Alvaro Cuadros-lnostroza alisdair r. fernie Lothar Willmitzer Henry Czosnek Institute of Plant Sciences and Genetics in Agriculture The Robert H. Smith Faculty of Agriculture Food and Environment The Hebrew University of Jerusalem Rehovot 76100 Israel Max-Planck Institute of Molecular Plant Physiology Am Muhlenberg 1 14476 Potsdam-Golm Germany

Dear Editor, Tomato yellow leaf curl virus （TYLCV） is a whitefly-trans- mitted geminivirus infecting tomato crops （Czosnek, 2007）. TYLCV-resistant （r） and susceptible （S） lines with the same genetic background have been bred using Solanum habro- chaites as the resistance source. The gene（s） conferring resist- ance are unknown. Previously, we demonstrated that the hexose transporter gene LeHT1 is up-regulated upon infec- tion in r plants and its silencing in r plants （rH） leads to the collapse of resistance （Eybishtz et al., 2010）. To uncover the role of LeHT1 in resistance, we （1） analyzed the transcriptome reprogramming in leaves of S, r, and rH plants using a home- designed microarray, before and 7 d after TYLCV inoculation （0, 7 dpi）, and （2） measured the concentration of sugars and their derivatives in S, r, and rH leaves at 1 and 7 dpi because LeHT1 is transporting both glucose and fructose （McCurdy et al., 2010）.

关键词： curl virus whitefly-transmitted geminivirus TYLCV inoculation

Exploring the genic resources underlying metabolites throughmGWASandmQTL inwheat: from large-scale gene identification and pathway elucidation to crop improvement

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Plant Communications 2021年第4期2卷 127-139页

作者： Jie Chen Mingyun Xue Hongbo Liu alisdair r.f.rnie Wei Chen National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene research(Wuhan) Huazhong Agricultural UniversityWuhan 430070China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan 430070China Max-Planck-Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany

Common wheat(Triticum aestivum L.)is a leading cereal crop,but has lagged behind with respect to the interpretation of the molecular mechanisms of phenotypes compared with other major cereal crops such as rice and *** recently available genome sequence of wheat affords the pre-requisite information for efficiently exploiting the potential molecular resources for decoding the genetic architecture of complex traits and identifying valuable breeding ***,the successful application of metabolomics as an emergent large-scale profiling methodology in several species has demonstrated this approach to be accessible for reaching the above *** such productive avenue is combining metabolomics approaches with genetic ***,this trial is not as widespread as that for sequencing technologies,especially when the acquisition,understanding,and application of metabolic approaches in wheat populations remain more difficult and even arguably *** this review,we briefly introduce the techniques used in the acquisition of metabolomics data and their utility in large-scale identification of functional candidate *** progress has been made in delivering improved varieties,suggesting that the inclusion of information concerning these metabolites and genes and metabolic pathways enables a more explicit understanding of phenotypic traits and,as such,this procedure could serve as an-omics-informed roadmap for executing similar improvement strategies in wheat and other species.

关键词： wheat metabolomics mGWAS mQTL pathway elucidation

The metabolic changes that effect fruit quality during tomato fruit ripening

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Molecular Horticulture 2022年第1期2卷 11-29页

作者： feng Zhu Weiwei Wen Yunjiang Cheng alisdair r.f.rnie National r&D Center for Citrus Preservation Key Laboratory of Horticultural Plant BiologyMinistry of EducationHuazhong Agricultural UniversityWuhan 430070China Max-Planck-Institut für Molekulare Pflanzenphysiologie Am Mühlenberg 114476 PotsdamGolmGermany

As the most valuable organ of tomato plants,fruit has attracted considerable attention which most focus on its quality formation during the ripening process.A considerable amount of research has reported that fruit quality is affected by metabolic shifts which are under the coordinated regulation of both structural genes and transcriptional *** recent years,with the development of the next generation sequencing,molecular and genetic analysis methods,lots of genes which are involved in the chlorophyll,carotenoid,cell wall,central and secondary metabolism have been identified and confirmed to regulate pigment contents,fruit softening and other aspects of fruit flavor ***,both research concerning the dissection of fruit quality related metabolic changes,the transcriptional and post-translational regulation of these metabolic pathways are ***,a weighted gene correlation network analysis of representative genes of fruit quality has been carried out and the potential of the combined application of the gene correlation network analysis,fine-mapping strategies and next generation sequencing to identify novel candidate genes determinants of fruit quality is discussed.

关键词： Tomato ripening Metabolites regulation fruit quality

Analysis of metabolic alterations in Arabidopsis following changes in the carbon dioxide and oxygen partial pressures

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Journal of Integrative Plant Biology 2014年第9期56卷 941-959页

作者： Alexandra florian Stefan Timm Zoran Nikoloski Takayuki Tohge Hermann Bauwe Wagner L.Araujo alisdair r.f.rnie Max Planck Institute for Molecular Plant Physiology Department of Plant Physiology University of Rostock Max-Planck Partner group at the Departament of Plant Biology Federal University of Vicosa

As sessile organisms,plants are subject to a multitude of environmental variations including several which directly affect their interaction with the *** the indiscriminant nature of rubisco,the relative rates of photosynthesis and photorespiration are known to be responsive to changes in gas ***,comprehensive profiling methods have not yet been applied in order to characterize the wider consequences of these changes on primary metabolism in ***,although transcriptional profiling has revealed that a subset of photorespiratory enzymes are co-expressed,whether transcriptional responses play a role in short-term responses to atmospheric compositional changes remains *** address these questions,plants Arabidopsis thaliana（Arabidopsis） ecotype Columbia（Col-O） grown under normal air conditions were transferred to different CO_2 and O_2 concentrations and characterized at the physiological,molecular,and metabolic levels following this *** results reveal alterations in the components,which are directly involved in,or supporting,photorespiration,including transcripts and metabolite *** results further highlight that the majority of the regulation of these pathways is not mediated at the level of transcription and that the photorespiratory pathway is essential also in conditions in which flux through the pathway is minimized,yet suggest that flux through this pathway is not mediated at the level of transcription.

关键词： Carbon dioxide partial pressures gene expression metabolic profiling oxygen partial pressures

Transition of primary to secondary cell wall synthesis

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Science Bulletin 2016年第11期61卷 838-846页

作者： Zheng Li alisdair r.f.rnie Staffan Persson School of Bio Sciences University of Melbourne Max-Planck-Institute of Molecular Plant Physiology ArC Centre of Excellence in Plant Cell Walls School of Bio Sciences University of Melbourne

The construction of a secondary cell wall is an important and necessary developmental decision that sup- ports cell function and plant stature. Unlike the primary cell walls, which are initiated during cell division and develop along with the expansion of the cells, secondary cell walls are constructed after the cells have stopped growing. Hence, the transition from primary to secondary wall synthesis marks an important and distinct metabolic investment by the plant. This transition requires a coordi- nated change of a plethora of cellular processes, including hormonal, transcriptional and post-transcriptional activi- ties, metabolic flux re-distributions and enzymatic activities. In this review, we briefly summarize the hormonal and transcriptional control of the primary to secondary wall transition, and highlight important gaps in our under- standing of the metabolic framework that support the transition. Several tools that may aid in future research efforts to better understand the changes in cell wall synthesis during the trans-differentiation are also discussed.

关键词： Secondary cell wall Primary cell walltransition Hormone Transcriptional network Metabolism