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Duplicated chalcone synthase(CHS)genes modulate flavonoid production in tea plants in response to light stress

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Journal of Integrative Agriculture 2024年第6期23卷 1940-1955页

作者： Mingzhuo Li Wenzhao Wang Yeru Wang Lili Guo Yajun Liu Xiaolan Jiang Liping Gao Tao Xia State Key Laboratory of Tea plant Biochemistry and Utilization Anhui Agricultural UniversityHefei 230036China School of Life Sciences Anhui Agricultural UniversityHefei 230036China College of Horticulture Northwest A&F UniversityYangling 712100China department of plant and Microbial biology North Carolina State UniversityRaleigh 27606NCUSA

In tea plants,the abundant flavonoid compounds are responsible for the health benefits for the human body and define the astringent flavor *** the downstream mechanisms of flavonoid biosynthesis have been extensively studied,the role of chalcone synthase(CHS)in this secondary metabolic process in tea plants remains less *** this study,we compared the evolutionary profile of the flavonoid metabolism pathway and discovered that gene duplication of CHS occurred in tea *** identified three CsCHS genes,along with a CsCHS-like gene,as potential candidates for further functional *** the CsCHS-like gene,the CsCHS genes effectively restored flavonoid production in Arabidopsis ***,CsCHS transgenic tobacco plants exhibited higher flavonoid compound accumulation compared to their wild-type *** notably,our examination of promoter and gene expression levels for the selected CHS genes revealed distinct responses to UV-B stress in tea *** findings suggest that environmental factors such as UV-B exposure could have been the key drivers behind the gene duplication events in CHS.

关键词： tea flavonoids biosynthesis CHS gene duplication UV-B stress

Sensing of membrane tensions:the pleiotropic functions of OSCA/TMEM63 mechanosensitive ion channels

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Journal of Genetics and Genomics 2024年第6期51卷 579-582页

作者： Bo Yu Alex Costa Yang Zhao Shanghai Center for plant Stress biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China Key Laboratory of plant Carbon Capture Chinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100049China department of Biosciences University of MilanVia Celoria 26Milan 20133Italy

Organisms sense and respond to environmental and developmental signals to drive adaptive responses(Kefauver et al.,2020;Yu et al.,2024).These stimuli can be mainly divided into physical and chemical stimuli,and the physical stimuli include light,temperature,sound,vibration,pressure,stretch,shear stress,osmotic stress,and substrate *** of these physical stimuli trigger physical forces and alter membrane tension,which in turn activates mechanosensitive channels(MsCs)and converts the mechanical cues into biochemical signals.

关键词： deformation. convert mec

Impact of numerous larval diets on the biology of pink bollworm Pectinophora gossypiella(Saunders)(Lepidoptera:Gelechiidae)under laboratory conditions

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Journal of Cotton Research 2024年第1期7卷 69-78页

作者： AKHTAR Shamim ARIF Muhammad Jalal GOGI Muhammad Dildar HAQ Imran-ul department of Entomology University of Agriculture FaisalabadPunjabPakistan Ayub Agricultural Research Institute(Entomological Research Institute) FaisalabadPunjabPakistan department of plant pathology University of AgricultureFaisalabadPunjabPakistan

Background Pink bollworm,Pectinophora gossypiella(Saunders)(Lepidoptera:Gelechiidae)has become a poten-tial pest of cotton by causing substantial yield losses around the world including *** in view the facts like limited research investigations,unavailability,and high cost of artificial diet’s constituents and their premixes,the present research investigations on the dietary aspect of *** were *** larvae of *** were reared on different diets that were prepared using indigenous *** standard/laboratory diet com-prised of wheat germ meal 34.5 g,casein 30.0 g,agar–agar 20.0 g,sucrose 10.0 g,brewer’s yeast 5.0 g,α-cellulose 1.0 g,potassium-sorbate1.5 g,niplagin 0.5 g,decavitamin 0.01 g,choline-chloride 0.06 g,maize-oil 3.30 g,honey 2.0 g,and water 730.0 *** to cotton bolls and wheat germ meal were okra seed sprouts,okra fruit,cottonseed meal,and okra seed meals,which were included in the study to introduce an efficient and economic mass-rearing *** The larval development completed in 19.68d±0.05 d with a weight of 20.18mg±0.20 mg at the fourth instar fed on the cottonseed meal-based diet instead of wheat germ meal based *** the same diet,84.00%±4.00%,17.24 mg±0.03 mg,and 7.76d±0.06 d were recorded as pupae formation,pupal weight,and pupal duration,*** emergence,76.00%±1.00%was recorded from pupae collected from larvae raised on cottonseed meal-based *** male and female moths lived for 40.25d±0.10 d,and 44.34d±0.11 d,*** deposited 21.28±0.04 eggs per day with the viability of 65.78%±0.14%.The larval mortal-ity at the fourth instar was 37.20%±1.36%and malformed pupation of 12.00%±1.41%was *** of wheat germ meal with that of local meals(cottonseed and okra seed)in the standard laboratory diet has saved 463.80 to 467.10 PKR with 1.62 to 1.63 cost economic returns,*** This research is of novel nature as it provides a concis

关键词： Artificial diets Cottonseed meal Laboratory rearing Pectinophora gossypiella Wheat germ meal

Light-stabilized GIL1 suppresses PIN3 activity to inhibit hypocotyl gravitropism

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Journal of Integrative plant biology 2024年第9期66卷 1886-1897页

作者： Xiaolian Wang Yanfang Yuan Laurence Charrier Zhaoguo Deng Markus Geisler Xing Wang Deng Haodong Chen Center for plant biology School of Life SciencesTsinghua UniversityBeijing 100084China Tsinghua‐Peking Center for Life Sciences Beijing 100084China School of Advanced Agricultural Sciences and School of Life Sciences Peking‐Tsinghua Center for Life SciencesPeking UniversityBeijing 100871China department of biology University of FribourgFribourg 1700Switzerland

Light and gravity coordinately regulate the directional growth of *** Gravitropic in the Light 1(GIL1)inhibits the negative gravitropism of hypocotyls in red and far-red light,but the underlying molecular mechanisms remain *** study found that GIL1 is a plasma membrane-localized *** endodermal cells of the upper part of hypocotyls,GIL1 controls the negative gravitropism of ***1 directly interacts with PIN3 and inhibits the auxin transport activity of *** of PIN3 suppresses the abnormal gravitropic response of gil1 *** GIL1 protein is unstable in darkness but it is stabilized by red and far-red ***,our data suggest that light-stabilized GIL1 inhibits the negative gravitropism of hypocotyls by suppressing the activity of the auxin transporter PIN3,thereby enhancing the emergence of young seedlings from the soil.

关键词： GIL1 gravitropism hypocotyls light PIN3

High-quality assembled and annotated genomes of Nicotiana tabacum and Nicotiana benthamiana reveal chromosome evolution and changes in defense arsenals

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Molecular plant 2024年第3期17卷 423-437页

作者： Jubin Wang Qingling Zhang Jeffrey Tung Xi Zhang Dan Liu Yingtian Deng Zhendong Tian Huilan Chen Taotao Wang Weixiao Yin Bo Lij Zhibing Lai Savithramma P.Dinesh-Kumar Barbara Baker Feng Li National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China plant Gene Expression Center Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyBerkeleyCA 94706USA College of plant Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Life Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China department of plant biology and The Genome Center College of Biological SciencesUniversity of CalforniaDavisDavisCA 95616USA The Key Laboratory of Horticultural plant Genetic and Improvement of Jiangxi Province Institute of Biological ResourcesJiangxi Academy of SciencesNanchang 330299China institute of Vegetables and Flowers Jiangxi Academy of Agricultural SciencesNanchang 330200Chin Hubei Hongshan Laboratory WuhanHubei 430070China

Nicotiana tabacum and Nicotiana benthamiana are widely used models in plant biology ***,genomic studies of these species have *** we report the chromosome-level reference genome assemblies for *** and *** with an estimated 99.5%and 99.8%completeness,*** transcription start and termination site sequencing methods were developed and used for accurate gene annotation in *** analyses revealed evidence for the parental origins and chromosome structural changes,leading to hybrid genome formation of each ***,theantiviral silencinggenesRDR1,RDR6,DCL2,DCL3,andAGO2were lost from one or both subgenomes in ***,while both homeologs were kept in ***,the *** genome encodes fewer immune receptors and signaling components than that of *** find-ings uncover possible reasons underlying the hypersusceptible nature of *** developed the user-friendly Nicomics(http:/***/Nicomics/)web server to facilitate better use of Nicotiana genomic resources as well as gene structure and expression analyses.

关键词： Nicotiana tabacum Nicotiana benthamiana genomics evolution disease resistance NLR

Doubled haploid technology and synthetic apomixis:Recent advances and applications in future crop breeding

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Molecular plant 2024年第7期17卷 1005-1018页

作者： Yanzhi Qu Alisdair R.Fernie Jie Liu Jianbing Yan National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China department of Molecular Physiology Max-Planck-Institute of Molecular Plant Physiology14476 Potsdam-GolmGermany Center of plant Systems biology and Biotechnology 4000 PlovdivBulgaria azhouwan National Laboratory Sanya 572024China

Doubled haploid(DH)technology and synthetic apomixis approaches can considerably shorten breeding cycles and enhance breeding *** with traditional breeding methods,DH technology offers the advantage of rapidly generating inbred lines,while synthetic apomixis can effectively fix hybrid *** this review,we focus on(i)recent advances in identifying and characterizing genes responsible for haploid induction(Hl),(ii)the molecular mechanisms of Hl,(ili)spontaneous haploid genome doubling,and(iv)crop synthetic *** also discuss the challenges and potential solutions for future crop breeding programs utilizing DH technology and synthetic ***,we provide our perspectives about how to integrate DH and synthetic apomixis for precision breeding and de novo domestication.

关键词： maize doubled haploid technology haploid induction synthetic apomixis precision breeding

Maize Proteins Associated with Virions of Sugarcane Mosaic Virus

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Maize Proteins Associated with Virions of Sugarcane Mosaic V...

Establishment of RT-RPA-LFA Method for Rapid Detection of Tomato Spotted wilt virus

中国植物病理学会2024年学术年会

作者： XIE Jinhao WANG Pei DU Kaitong ZANG Lianyi PENG Dezhi HUA Xia WANG Hao FAN Zaifeng ZHOU Tao department of plant pathology China Agricultural University

Maize(Zea mays L.) is a globally significant staple crop that is susceptible to numerous pests and diseases throughout its growth *** these threats,sugarcane mosaic virus(SCMV) is known to cause maize dwarf *** investigate the host factors that interact with SCMV virions,we isolated the virions and employed liquid chromatography-tandem mass spectrometry(LC-MS/MS) for comprehensive mass spectrometry *** Ontology(GO) enrichment analysis revealed that virion associated proteins(VAPs) were predominantly linked to cellular components and molecular functions,such as organelle parts,membranes,membrane components,and transporter ***,key biological processes including transport,catabolism,and energy metabolism were identified as significantly enriched through Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway analysis,corroborating the findings from the GO *** insights gained from this study are expected to contribute valuable information to the understanding of the virus-host interaction dynamics.

关键词： maize sugarcane mosaic virus mass spectrometry analysis

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Establishment of RT-RPA-LFA Method for Rapid Detection of To...

Study of the Effectiveness of Papaver Sp. Alkaloids as Future Therapeutic Alternatives against Enterococcus Sp. Causing Hospital-Acquired Septicemic Infections

中国植物病理学会2024年学术年会

作者： WANG Hao DU Kaitong DING Huijiao SUN Geng DONG Laihua FAN Zaifeng ZHOU Tao department of plant pathology China Agricultural University

Orthotospovirus tomatomaculae(tomato spotted wilt virus,TSWV) can infect more than 1 090 species of plants in 84 families,causing serious yield loss and quality degradation of tomato,pepper and other *** virus is one of the quarantine pests for import plants to the People's Republic of China in ***,it is necessary to develop a rapid and efficient method for detection of *** present,ELISA,reverse transcription(RT)-PCR and Real-Time Fluorescent RT-PCR and other detection techniques commonly used for this virus are complicated,time-consuming and expensive with professional requirements for operators,which cannot meet the testing needs of detection in actual situations such as rapid on-site customs inspection and accurate disposal of *** Polymerase Amplification(RPA) and Lateral Flow Assay(LFA) were combined to achieve rapid detection of TSWV in this ***,TSWV was detected in pepper leaves suspected of viral *** cloning and sequencing of N gene,sequence analysis suggested a new isolate of TSWV in the infected ***,the design and screening of RPA primers were completed,and the basicRPA detection technology for TSWV was ***,the false positive problem during the integration of RPA and LFA in this study was solved by controlling the concentration of the *** preliminarily established detection method of RT-RPA-LFA for TSWV laid a solid foundation for the independent research and development of test strips that can be directly used in field production and quarantine.

关键词： TSWV recombinase polymerase amplification lateral flow assay

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Journal of Biosciences and Medicines 2024年第8期12卷 107-127页

作者： Lama Mohammed Ayoub Shbibe Georgette Antranik Babojian department of plant biology Faculty of Science Damascus University Damascus Syria

Background and Objective: In recent years, control of Enterococcus sp. It has been proven in the local medical environment to be a cause of acquired septicemia in various age groups, and medical instruments are considered an effective means of transmitting enterococcal septicemia, and catheters are at the forefront in terms of danger. Based on this risk, this study aimed to monitor the spread of Enterococcus sp., which causes blood poisoning acquired from catheters, and to compare its response to antibiotics with that of those isolated from clinical samples in children, as a first study locally. The effectiveness of alkaloids of different types of Papaver sp. In Syrian plants, they were tested against infection with this bacteria. Materials and Methods: The study dealt with two parts: The first part included collecting clinical samples from the University Children’s Hospital in Damascus/bacterial diagnostic laboratories/then isolating and diagnosing the bacteria by following a set of tests to identify the most prevalent genera and species and comparing their prevalence rate with Enterococcus. The second part;It included collecting plant samples, confirming the species taxonomically, then extracting alkaloids from plant parts (fruit, stem, Flowers), then comparing the extent of resistance of bacterial strains to antibiotics compared to the Enterococcus sp., and then confirming the antibacterial activity of the Papaver sp. alkaloids against Enterococcus sp. Result:In its first part, the study confirmed the significant contribution of the Enterococcus sp. to infections acquired from various sources, largely in catheter tip infections (9.09%) and to a lesser extent in other sources (3.7%), The second part was to confirm the effective-ness of the alkaloid extract of the Papaver sp., especially the two species Papaver syriacum, and Papaver dubium, against Enterococcus sp. with areole diameters that ranged between (15 - 26 mm) for the fruit extract and at a minimum inhibit

关键词： Catheters Skin Ulcers Acquired Infection Multi-Resistant Enterococcus Sp. Papaver Sp. Alkaloids Minimum Inhibitory and Lethal Concentration