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Structures and ion transport mechanisms of plant high-affinity potassium transporters

Molecular Plant 2024年第3期17卷 409-422页

作者： Jiangqin Wang Yanping Luo Fan Ye Zhong Jie Ding Shao Jian Zheng Shuai Qiao Yong Wang Jiangtao Guo Wei Yang Nannan Su international Institutes of Medicine the Fourth Affiliated HospitalZhejang University School of MedicineYiwuZhejiang 322000China Department of Biophysics and Department of Neurology of the Fourth Affiliated Hospital Zhejiang University School of MedicineHangzhouZhejang 310058China State Key Laboratory of Plant Environmental Resilience College of Life SciencesZhejang UniversityHangzhouZhejang 310058China College of Life Sciences Zhejiang UniversityHangzhouZhejiang 310058China NHC and CAMS Key Laboratory of Medical Neurobiology MOE Frontier Science Center for Brain Science and Brain-machine IntegrationSchool of Brain Science and Brain MedicineZhejiang UniversityHangzhouZhejiang 310058China Nanhu Brain-computer Interface Institute Hangzhou.Zheiang 311100.China

Plant high-affinity K^(+) transporters(HKTs)mediate Na^(+) and K^(+) uptake,maintain Na^(+)/K^(+) homeostasis,and therefore play crucial roles in plant salt tolerance.In this study,we present cryoelectron microscopy structures of HKTs from two classes,classI HKT1;1 from Arabidopsis thaliana(AtHKT1;1)and class II HKT2;1 from Triticum aestivum(TaHKT2;1),in both Na^(+) -and K^(+) -bound states at 2.6-to 3.0-A resolutions.BothAtHKT1;1and TaHKT2;1function ashomodimers.Each HKT subunit consists of four tan-dem domain units(D1-D4)with a repeated K^(+) -channel-like M-P-M topology.In each subunit,D1-D4 assemble into an ion conduction pore with a pseudo-four-fold symmetry.Although both TaHKT2;1and AtHKT1;1 have only one putative Na^(+) ion bound in the selectivity filter with a similar coordination pattern,the two HKTs display different K^(+) binding modes in the filter.TaHKT2;1 has three K^(+) ions bound in the selec-tivity filter,but AtHKT1;1 has only two K^(+) ions bound in the filter,which has a narrowed external entrance due to the presence of a Ser residue in the first filter motif.These structures,along with compu-tational,mutational,and electrophysiological analyses,enable us to pinpoint key residues that are critical for the ion selectivity of HKTs.The findings provide new insights into the ion selectivity and ion transport mechanisms of plant HKTs and improve our understanding about how HKTs mediate plant salt tolerance and enhance crop growth.

关键词： HKTs structure ion selectivity mechanism salt tolerance

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PDGFR in PDGF-BB/PDGFR Signaling Pathway Does Orchestrates Osteogenesis ina Temporal Manner

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Research 2024年第1期2023卷 33-48页

作者： Fangqian Wang Yuxiao Ye Zengjie Zhang Wangsiyuan Teng Hangxiang Sun Xupeng Chai Xingzhi Zhou Jiayu Chen Haochen Mou Yinwang Eloy Xiaoqiang Jin Liang Chen Zhenxuan Shao Yan Wu Yue Shen An Liu Peng Lin Jianwei Wang Xiaohua Yu Zhaoming Ye Department of Orthopedic Surgery the Second Affiliated HospitalZhejang University School of MedicineHangzhou CityZhejiang ProvincePR China Orthopedics Research Institute of zhejang university Hangzhou CityZhejiang ProvincePR China Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province Hangzhou CityZhejiang ProvincePR China School of Material Science and Engineering University of New South WalesSydney 2052Australia

Platelet-derived growth factor-BB(PDGF-BB)/platelet-derived growth factor receptor-β(PDGFR-β)pathway is conventionally considered as an important pathway to promote osteogenesis;however,recent study suggested its role during osteogenesis to be controversial.Regarding the differential functions of this pathway during 3 stages of bone healing,we hypothesized that temporal inhibition of PDGF-BB/PDGFR-βpathway could shift the proliferation/differentiation balance of skeletal stem and progenitor cells,toward osteogenic lineage,which leads to improved bone regeneration.We first validated that inhibition of PDGFR-βat late stage of osteogenic induction effectively enhanced differentiation toward osteoblasts.This effect was also replicated invivo by showing accelerated bone formation when block PDGFR-βpathway at late stage of critical bone defect healing mediated using biomaterials.Further,we found that such PDGFR-βinhibitor-initiated bone healing was also effective in the absence of scaffold implantation when administrated intraperitoneally.Mechanistically,timely inhibition of PDGFR-βblocked extracellular regulated protein kinase 1/2 pathway,which shift proliferation/differentiation balance of skeletal stem and progenitor cell to osteogenic lineage by upregulating osteogenesis-related products of Smad to induce osteogenesis.This study offered updated understanding of the use of PDGFR-βpathway and provides new insight routes of action and novel therapeutic methods in the field of bone repair.

关键词： healing sized implantation

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Detecting fake reviewers in heterogeneous networks of buyers and sellers:a collaborative training-based spammer group algorithm

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Cybersecurity 2024年第2期7卷 44-67页

作者： Qi Zhang Zhixiang Liang Shujuan Ji Benyong Xing Dickson K.W.Chiu Shandong Provincial Key Laboratory of Wisdom Mine Information Technology Shandong University of Science and TechnologyQingdao 266590ShandongChina zhejang university-university of linois at Urbana-Champaign Institute Haining 314499ZhejiangChina School of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China Faculty of Education The University of Hong KongPok Fu LamHong KongChina

It is not uncommon for malicious sellers to collude with fake reviewers(also called spammers)to write fake reviews for multiple products to either demote competitors or promote their products'reputations,forming a gray industry chain.To detect spammer groups in a heterogeneous network with rich semantic information from both buyers and sellers,researchers have conducted extensive research using Frequent Item Mining-based and graph-based meth-ods.However,these methods cannot detect spammer groups with cross-product attacks and do not jointly consider structural and attribute features,and structure-attribute correlation,resulting in poorer detection performance.There-fore,we propose a collaborative training-based spammer group detection algorithm by constructing a heterogene-ous induced sub-network based on the target product set to detect cross-product attack spammer groups.To jointly consider all available features,we use the collaborative training method to learn the feature representations of nodes.In addition,we use the DBSCAN clustering method to generate candidate groups,exclude innocent ones,and rank them to obtain spammer groups.The experimental results on real-world datasets indicate that the overall detection performance of the proposed method is better than that of the baseline methods.

关键词： Spammer group Heterogeneous network Collaborative training DBSCAN

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Humanoid robot heads for human-robot interaction:A review

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Science China(Technological Sciences) 2024年第2期67卷 357-379页

作者： LI Yi ZHU LiXiang ZHANG ZiQian GUO MingFei LI ZhiXin LI YanBiao HASHIMOTO Minoru Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education Zhejiang University of TechnologyHangzhou 310023China Zhejiang Provincial Key Laboratoryof Special Purpose Equipment and Advanced Processing Technology zhejang universityof Technology Hangzhou 310023 China Faculy of Textile Science and Technology Shinshu UniversityUeda 386-8567Japan

The humanoid robot head plays an important role in the emotional expression of human-robot interaction(HRI).They are emerging in industrial manufacturing,business reception,entertainment,teaching assistance,and tour guides.In recent years,significant progress has been made in the field of humanoid robots.Nevertheless,there is still a lack of humanoid robots that can interact with humans naturally and comfortably.This review comprises a comprehensive survey of state-of-the-art technologies for humanoid robot heads over the last three decades,which covers the aspects of mechanical structures,actuators and sensors,anthropomorphic behavior control,emotional expression,and human-robot interaction.Finally,the current challenges and possible future directions are discussed.

关键词： humanoid robot head anthropomorphic behaviors emotional expression human-robot interaction

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A complete reference genome assembly for foxtail millet and Setaria-db, a comprehensive database for Setaria

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Molecular Plant 2024年第2期17卷 219-222页

作者： Qiang He Chunchao Wang Qiang He Jun Zhang Hongkai Liang Zefu Lui Kun Xie Sha Tang Yuhan Zhou Bin Liu Hui Zhi Guanqing Jia Ganggang Guo Huilong Du Xianmin Diao State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China School of Life Sciences Institute of Life Sciences and Green DevelopmentHebei UniversityBaoding 071000China State Key Laboratory of Rice Biology&Breeding Zhejang Provincial Key Laboratory of Crop GermplasmThe Advanced Seed InstituteZhejiang UniversityHangzhouChina

Dear Editor,,Foxtail millet(Setaria italica)and its wild ancestor green foxtail(S.viridis),are two C4 genetic model plants known for their desirable traits,such as small size,short life cycle,ease of transformation,and a compact genome size(~420 Mb)(He et al.,2023).Foxtail millet stands out as the only cultivated species within the Setaria genus.As a foundational crop for ancient east Asian agriculture civilization,it possesses remarkable drought and soil-nutrient deficiency tolerance.

关键词： comprehensive soil cultivated

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Chinese herbal medicine Ginkgo biloba L.preparations for ischemic stroke:An overview of systematic reviews and meta-analyses

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Journal of Integrative Medicine 2024年第2期22卷 163-179页

作者： Tian-tian Meng Ya-ping You Min Li Jian-bo Guo Xin-bin Song Jing-yi Ding Xiao-long Xie An-qi Li Shang-jin Li Xiang-jun Yin Peng Wang Zhe Wang Bao-liang Wang Qing-yong He Department of Cardiology Guang'anmen HospitalChina Academy of Chinese Medical SciencesBeijing 100032China Department of Rehabilitation Dongfang HospitalBeijing University of Chinese MedicineBeijing 100071China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Chinese Medicine the University of Hong KongHong KongChina Graduate School Henan University of Chinese MedicineZhengzhou 450008Henan ProvinceChina Department of Acupuncture and Moxibustion Dongzhimen HospitalBeijing University of Chinese MedicineBeijing 100010China Department of Cardiology Guang’anmen HospitalChina Academy of Chinese Medical SciencesZhengzhou 450008Henan ProvinceChina School of Integrated Traditional Chinese and Western Medicine Southwest Medical UniversityHangzhou 310053Zhejiang ProvinceChina School of Basic Medical Sciences Zhejiang Chinese Medical UniversityHangzhu 310053Zhejang ProvinceChina Department of Neurology the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou 450003Henan ProvinceChina

Background:Ginkgo biloba L.preparations(GBLPs)are a class of Chinese herbal medicine used in the adjuvant treatment of ischemic stroke(IS).Recently,several systematic reviews(SRs)and meta-analyses(MAs)of GBLPs for IS have been published.Objective:This overview aims to assess the quality of related SRs and MAs.Search strategy:Pub Med,Embase,Cochrane Library,Web of Science,Chinese Biological Medicine,China National Knowledge Infrastructure,Wanfang,and Chinese Science and Technology Journals databases were searched from their inception to December 31,2022.Inclusion criteria:SRs and MAs of randomized controlled trials(RCTs)that explored the efficacy of GBLPs for patients with IS were included.Data extraction and analysis:Two independent reviewers extracted data and assessed the methodological quality,risk of bias(ROB),reporting quality,and credibility of evidence of the included SRs and MAs using A Measurement Tool to Assess Systematic Reviews 2(AMSTAR 2),Risk of Bias in Systematic Reviews(ROBIS),the Preferred Reporting Items for Systematic Reviews and Meta-analyses(PRISMA),and the Grading of Recommendations Assessment,Development and Evaluation(GRADE),respectively.Additionally,descriptive analysis and data synthesis were conducted.Results:Twenty-nine SRs/MAs involving 119 outcomes were included in this review.The overall methodological quality of all SRs/MAs was critically low based on AMSTAR 2,and 28 had a high ROB based on the ROBIS.According to the PRISMA statement,the reporting items of the included SRs/MAs are relatively complete.The results based on GRADE showed that of the 119 outcomes,8 were rated as moderate quality,24 as low quality,and 87 as very low quality.Based on the data synthesis,GBLPs used in conjunction with conventional treatment were superior to conventional treatment alone for decreasing neurological function scores.Conclusion:GBLPs can be considered a beneficial supplemental therapy for IS.However,because of the low quality of the existing evidence,high-quality RCTs and SRs/MAs are warranted t

关键词： statement synthesis alone

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Engineered biocontainable RNA virus vectors for non-transgenic genome editing across crop species and genotypes

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Molecular Plant 2023年第3期16卷 616-631页

作者： Qian Liu Chenglu Zhao Kai Sun Yinlu Deng Zhenghe Li State Key Laboratory of Rice Biology Institute of BiotechnologyZhejang UniversityHangzhouChina Ministry of Agricutture Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests Zhejiang UniversityHangzhouChina Key Laboratory of Biology of Crop Pathogens and Insects of zhejang Province Zhejang UniversityHangzhouChina

CRISPR/Cas genome-editing tools provide unprecedented opportunities for basic plant biology research and crop breeding.However,the lack of robust delivery methods has limited the widespread adoption of these revolutionary technologies in plant science.Here,we report an efficient,non-transgenic CRISPR/Cas delivery platform based on the engineered tomato spotted wilt virus(TSWV),an RNA virus with a host range of over 1000 plant species.We eliminated viral elements essential for insect transmission to liberate genome space for accommodating large genetic cargoes without sacrificing the ability to infect plant hosts.The resulting non-insect-transmissible viral vectors enabled effective and stable in planta delivery of Cas12a and Cas9 nucleases as well as adenine and cytosine base editors.In systemically infected plant tissues,the deconstructed TSWV-derived vectors induced efficient somatic gene mutations and base conversions in multiple crop species with little genotype dependency.Plants with heritable,bi-allelic mutations could be readily regenerated by culturing the virus-infected tissues in vitro without antibiotic selection.Moreover,we showed that antiviral treatment with ribavirin during tissue culture cleared the viral vectors in 100%of regenerated plants and further augmented the recovery of heritable mutations.Because many plants are recalcitrant to stable transformation,the viral delivery system developed in this work provides a promising tool to overcome gene delivery bottlenecks for genome editing in various crop species and elite varieties.

关键词： genome editing CRISPR-Cas base editor RNA virus vector tomato spotted wilt virus bunyavirus delivery non-transgenic

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Cardiovascular risk burden,dementia risk and brain structural imaging markers:a study from UK Biobank

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General Psychiatry 2024年第1期37卷 94-102页

作者： Yaying Cao Gaohong Zhu Chengwu Feng Jing Chen Wei Gan Yuan Ma Yonghua Hu Klodian Dhana Trudy Voortman Jie Shen Ting Li Yan Zheng Changzheng Yuan Geng Zong Department of Food Nutrition and Health School of Medicine and HealthHarbin Institute of TechnologyHarbinHeilongjiangChina CAS Key Laboratory of Nutrition Metabolism and Food SafetyShanghai Institute of Nutrition and HealthChinese Academy of SciencesShanghaiChina Department of Nuclear Medicine First Affiliated Hospital of Kunming Medical UniversityKunmingYunnanChina Neurology Department Zhongshan Hospital Affliated with Fudan UniversityShanghaiChina Medical Research Council Population Health Research Unit University of OxfordOxfordUK Department of Genetics Novo Nordisk Research Centre OxfordOxfordUK Harvard university T H Chan School of Public Health BostonMassachusettsUSA Department of Epidemiology and Biostatistics School of Public HealthPeking UniversityBeijingChina Department of Internal Medicine Rush University Medical CenterChicagolinoisUSA Department of Epidemiology rasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands Division of Human Nutrition and Health Wageningen University&ResearchWageningenThe Netherlands School of Public Health the Second Afliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina First Afiliated Hospital of Kunming Medical university KunmingYunnanChina State Key Laboratory of Genetic Engineering School f ife SCciencesFudan UniversityShanghaiChina Ministry of Education Key Laboratory of Public Health Safety School of Public HealthFudan UniversityShanghaiChina The Key Laboratory of Inteligent Preventive Medicine of zhejang Province HangzhouZhejiangChina Shanghai Jiao Tong university Affiliated Sixth People's Hospital ShanghaiChina

Background Cardiovascular risk burden is associated with dementia risk and neurodegeneration-related brain structure,while the role of genetics and incident cardiovascular disease(CVD)remains unclear.Aims To examine the association of overall cardiovascular risk burden with the risk of major dementia subtypes and volumes of related brain regions in a large sample,and to explore the role of genetics and CVD onset.Methods A prospective study among 354 654 participants free of CVD and dementia(2006-2010,mean age 56.4 years)was conducted within the UK Biobank,with brain magnetic resonance imaging(MRl)measurement availablefor 15104participants since 2014.CVD risk burden was evaluated by the Framingham General Cardiovascular Risk Score(FGCRS).Dementia diagnosis was ascertained from inpatient and death register data.Results Overamedian 12.0-yearfollow-up,3998 all-cause dementia cases were identified.Higher FGCRS was associated with increasedall-cause dementia risk after adjusting for demographic,major lifestyle,clinical factors and the polygenic risk score(PRS)of Alzheimer's disease.Comparing the high versus low tertile of FGCRS,the odds ratios(ORs)and 95%confidence intervals(Cls)were 1.26(1.12 to 1.41)for all-cause dementia,1.67(1.33 to 2.09)for Alzheimer's disease and 1.53(1.07 to 2.16)for vascular dementia(all p_(treng)<0.05).Incident stroke and coronary heart disease accounted for 14%(95%Cl:9% to 21%)of the association between FGCRS and all-cause dementia.Interactions were not detected for FGCRS and PRS on the risk of any dementia subtype.We observed an 83%(95%Cl:47%to 128%)higher all-cause dementia risk comparing the high-high versus low-low FGCRS-PRS category.For brain volumes,higher FGCRS was associated with greater log-transformed white matter hyperintensities,smaller cortical volume and smaller grey matter volume.Conclusions Our findings suggest that the positive association of cardiovascular risk burden with dementia risk also applies to major dementia subtypes.The association of cardiovascular risk burden wit

关键词： Cardiovascular diagnosis burden

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Disruption of three polyamine uptake transporter genes in rice by CRISPR/Cas9 gene editing confers tolerance to herbicide paraquat

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aBIOTECH 2022年第2期3卷 140-145页

作者： Yu-Shu Lyu Li-Miao Cao Wen-Qian Huang Jian-Xiang Liu Hai-Ping Lu State Key Laboratory of Plant Physiology and Biochemistry Cllge of Life SciencesZhejang UniversityHangzhou 310058China State Key Laboratory of Rice Biology Zhejang Provincial Key Laboratory of Crop Genetie ResourcesInstitute of Crop ScienceZhejiang UniversityHangzhou 310058China

Weeds are a major biotic constraint that can cause dramatic crop production losses.Herbicide technology has been widely used by farmers as the most cost-effective weed control measure,and development of new strategy to improve herbicide tolerance in plants is urgently needed.The CRISPR/Cas9-based genome editing tool has been used in diverse applications related to agricultural technology for crop improvement.Here we identified three polyamine uptake transporter(PUT)genes in rice that are homologous to the Arabidopsis AtRMV1.We successfully demonstrate that CRISPR/Cas9-targeted mutagenesis of OsPUT1/2/3 greatly improves paraquat resistance in rice without obvious yield penalty.Therefore,manipulation of these loci could be valuable for producing transgene-free rice with improved herbicide resistance in future.

关键词： Paraquat OsPUTs CRISPR/Cas9 Rice

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Woody plant cell walls:Fundamentals and utilization

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Molecular Plant 2024年第1期17卷 112-140页

作者： Wei Li Ying-Chung Jimmy Lin Ying-Lan Chen Chenguang Zhou Shuang Li Nette De Ridder Dyoni M.Oliveira Lanjun Zhange Baocai Zhang Jack P.Wang Changzheng Xu Xiaokang Fu Keming Luo Ai-Min Wu Taku Demura Meng-Zhu Lu Yihua Zhou Laigeng Li Toshiaki Umezawa Wout Boerjan Vincent L.Chiang State Key Laboratory of Tree Genetics and Breeding Northeast Forestry UniversityHarbin 150040China Department of Life Science National Taiwan UniversityTaipeiTaiwanChina Department of Biotechnology and Bioindustry Sciences College of Bioscience and BiotechnologyNational Cheng Kung UniversityTainanTaiwanChina Department of Plant Biotechnology and Bioinformatics Ghent UniversityTechnologiepark 719052 GhentBelgium VIB Center for Plant Systems Biology Technologiepark 719052 GhentBelgium State Key Laboratory of Plant Genomics Insttute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China university of Chinese Academy of Sciences Beijing 100049China Forest Biotechnology Group Department of Forestry and Environmental ResourcesNorth Carolina State UniversityRaleighNC 27695USA Chongqing Key Laboratory of Plant Resource Conservation and Germplasm Innovation Integrative Science Center of Germplasm CreationSchool of Life SciencesSouthwest UniversityChongqing 400715China Guangdong Key Laboratory for Innovative Developmentand Utilization of Forest Plant Germplasm College of Forestry and Landscape ArchitecturesSouth China Agricultural UniversityGuangzhou510642China Center for Digital Green-innovation Nara Institute of Science and TechnologykomaNara 630-0192Japan State Key Laboratory of Subtropical Siviculture College of Forestry and BiotechnologyZhejang A&F UniversityHangzhou 311300China CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences300 Fenglin RoadShanghai 200032China Laboratoryof MetabolicScienceofForest Plants and Microorganisms Rsearch Institute for Sustainable HumanosphereKyoto UniversityUjiKyoto 611-0011 Japan

Cell walls in plants,particularly forest trees,are the major carbon sink of the terrestrial ecosystem.Chemical and biosynthetic features of plant cell walls were revealed early on,focusing mostly on herbaceous model species.Recent developments in genomics,transcriptomics,epigenomics,transgenesis,and associated analytical techniques are enabling novel insights into formation of woody cell walls.Here,we review multilevel regulation of cell wall biosynthesis in forest tree species.We highlight current approaches to engineering cell walls as potential feedstock for materials and energy and survey reported field tests of such engineered transgenic trees.We outline opportunities and challenges in future research to better understand cell type biogenesis for more efficient wood cell wall modification and utilization for biomaterials or for enhanced carbon capture and storage.

关键词： regulation of cell wall formation biosynthesis of cell wall components lignin cellulose hemicellulose cell wall utilization

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