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Unraveling the regulatory network of flower coloration in soybean:Insights into roles of GmMYBA3 and GmMYBR1

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The Crop Journal 2024年第2期12卷 443-455页

作者： Ruifang Gao Yueqing Li Yanan Wang Xiaotong Shan Siqi Yang Ye Zhang Saiyu Ma Chunbao Zhang Jianchun Qin Li Wang Xiang Gao College of Plant Science Jilin UniversityChangchun 130062JilinChina Key Laboratory of Molecular Epigenetics of MOE and Institute of Genetics&Cytology Northeast Normal UniversityChangchun 130024JilinChina Soybean Research Institute National Engineering Research Center for SoybeanJilin Academy of Agricultural SciencesChangchun 130033JilinChina

anthocyanins play crucial roles in pollen protection and pollinator attraction in flowering plants.However,the mechanisms underlying flower color determination and whether floral anthocyanin regulators participate in other processes remain largely unresolved in soybeans(Glycine max).In this study,we investigated the genetic components and mechanisms governing anthocyanin biosynthesis in soybean flowers.Molecular and genetic studies have characterized two antagonistic regulators,the positive activator GmMYBA3 and the negative repressor GmMYBR1,that modulate the gene expression of anthocyanin biosynthesis in soybean flowers.Further findings revealed a regulatory interplay between GmMYBA3 and GmMYBR1 bridged by GmTT8a,highlighting the complexity of anthocyanin regulation in different soybean organs.Exploration of additional soybean cultivars demonstrated the universality of GmMYBA3 and GmMYBR1 in regulating floral anthocyanin biosynthesis-related genes,with GmF3’5’H identified as a crucial determinant of white flower color.This study provides a molecular mechanism underlying soybean flower color determination,paving the way for the molecular modification of soybean flowers to probably enhance their resistance to abiotic stresses and attractiveness to pollinators.

关键词： anthocyanin Flower color determination MBW complex MYB repressor Pleiotropic regulator

Coupling of reduced inorganic fertilizer with plant-based organic fertilizer as a promising fertilizer management strategy for colored rice in tropical regions

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Journal of Integrative Agriculture 2024年第1期23卷 93-107页

作者： Tingcheng Zhao Aibin He Mohammad Nauman Khan Qi Yin Shaokun Song Lixiao Nie Research Center for Physiology and Ecology and Green Cultivation of Tropical Crops School of Breeding and Multiplication(Sanya Institute of Breeding and Multiplication)Hainan UniversitySanya 572000China

Colored rice is a type of high-quality,high-added-value rice that has attracted increasing attention in recent years.The use of large amounts of inorganic nitrogen fertilizer in rice fields results in low fertilizer use efficiency and high environmental pollution.Organic fertilizer is a promising way to improve soil quality and sustain high yields.However,most studies focus on the effect of animal-based organic fertilizers.The effects of different ratios of plantbased organic fertilizer and inorganic fertilizer on the grain yield and quality of colored rice have rarely been reported.Therefore,a two-year field experiment was conducted in 2020 and 2021 to study the effects of replacing inorganic N fertilizers with plant-based organic fertilizers on the yield,nitrogen use efficiency(NUE),and anthocyanin content of two colored rice varieties in a tropical region in China.The experimental treatments included no nitrogen fertilization(T1),100% inorganic nitrogen fertilizer(T2),30%inorganic nitrogen fertilizer substitution with plant-based organic fertilizer(T3),60%inorganic nitrogen fertilizer substitution with plant-based organic fertilizer(T4),and 100% plantbased organic fertilizer(T5).The total nitrogen provided to all the treatments except T1 was the same at 120 kg ha-1.Our results showed that the T3 treatment enhanced the grain yield and anthocyanin content of colored rice by increasing nitrogen use efficiency compared with T2.On average,grain yields were increased by 9 and 8%,while the anthocyanin content increased by 16 and 10% in the two colored rice varieties under T3 across the two years,respectively,as compared with T2.Further study of the residual effect of partial substitution of inorganic fertilizers showed that the substitution of inorganic fertilizer with plant-based organic fertilizer improved the soil physiochemical properties,and thus increased the rice grain yield,in the subsequent seasons.The highest grain yield of the subsequent rice crop was observed under the T5 treatment.Our results suggested t

关键词： colored rice organic fertilizer soil quality grain yield anthocyanin

Distribution of antioxidants and phenolic compounds in flour milling fractions from hard red winter wheat

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Grain & Oil Science and Technology 2024年第2期7卷 71-78页

作者： Lauren Renee Brewer Jittawan Kubola Sirithon Siriamornpun Yong-Cheng Shi Department of Grain Science and Industry Kansas State UniversityManhattanKS 66506USA Department of Food Innovation and Processing Faculty of Agricultural TechnologyBuriram Rajabhat UniversityBuriram 31000Thailand Research Unit of Thai Food innovation Department of Food Technology and NutritionMahasarakham UniversityMahasarakham 44000Thailand

Mature wheat kernels contain three main parts:endosperm,bran,and germ.Flour milling results in multiple streams that are chemically different;however,the distribution of antioxidants and phenolic compounds has not been well documented in terms of conventional milling by-product streams.In this study,multiple analytical methods were used to investigate antioxidant activity and phenolic compound compositions of hard red winter wheat(whole ground wheat),the parts of a wheat kernel(bran,flour,germ),and wheat by-product streams(mill feed,red dog,shorts)for the first time.For each mill stream,phenolic compounds(total,flavonoid,and anthocyanin contents)were determined and antioxidant activities were evaluated with 1,1-diphenyl-2-picrylhydrazyl(DPPH)radical-scavenging activity,ferric reducing/antioxidant power(FRAP),and total antioxidant capacity assays.Significant differences(Panthocyanins.Mill feed was high in phenolic content(5.29 mg FAE/g),total antioxidant capacity(866 mg/g),and antioxidant activity(up to 75% DPPH inhibition and 20.26μmol FeSO_(4)/g).The comprehensive information on distribution of antioxidants and phenolic compounds provides insights for future human consumption of commonly produced co-products from flour milling,and for selecting and using different milling fractions to make foods with improved nutritional properties.

关键词： Wheat Milling streams Antioxidants Phenolic acids Flavonoid anthocyanin

Analysis and Verification of the Conserved MYB Binding Element in the DFR Promoter in Compositae

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Phyton-International Journal of Experimental Botany 2024年第2期93卷 343-353页

作者： Jialei Guo Fengzhen Li Guomin Shi Weimin Zhao Tao He State Key Laboratory of Plateau Ecology and Agriculture Qinghai UniversityXining810016China School of Ecol-Environmental Engineering Qinghai UniversityXining810016China Key Laboratory of Landscape Plants of Qinghai Province Qinghai UniversityXining810016China

anthocyanins,ubiquitous in the Compositae family,are regulated by MYB(v-myb avian myeloblastosis viral oncogene homolog),playing an important role in anthocyanin synthesis.In this study,we analyzed the regulation pathway in which the MYB protein of subgroup 6 promotes dihydroflavonol reductase(DFR)expression in Compositae,and validated this law in Saussurea medusa through yeast one-hybrid experiments.Our results showed that MYB and DFR underwent purification selection,DFR promoter analysis revealed the presence of MYB binding site(GAGTTGAATGG)and bHLH binding site(CANNTG)at the sense strand of 84–116 nucleotide residues from the start codon.These two motifs were separated by 9–10 nucleotide residues,as existed in the DFR promoters of many Compositae plants.Furthermore,the yeast one-hybrid experiment demonstrated that SmMYB1 can activate the promoter of SmDFR.Our results provide a reference for further functional study of DFR in Compositae.

关键词： Compositae anthocyanin DFR gene MYB gene

A molecular framework for signaling crosstalk between jasmonate and ethylene in anthocyanin biosynthesis,trichome development,and defenses against insect herbivores in Arabidopsis

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Journal of Integrative Plant Biology 2022年第9期64卷 1770-1788页

作者： Susheng Song Bei Liu Junqiao Song Shihai Pang Tianxue Song Shang Gao Yue Zhang Huang Huang Tiancong Qi College of Life Sciences Capital Normal Universityand Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental ImprovementBeijing100048 China School of Life Sciences Tsinghua UniversityBeijing100084 China

The phytohormones ethylene(ET)and jasmonate(JA)regulate plant development,growth,and defense responses;however,the molecular basis for their signaling crosstalk is unclear.Here,we show that JA-ZIM-domain(JAZ)proteins,which repress JA signaling,repress trichome initiation/branching and anthocyanin accumulation,and inhibit the transcriptional activity of the basic helix-loop-helix(bHLH)-MYBmembers(GLABRA3(GL3)-GL1 and TRANSPARENT TESTA 8(TT8)-MYB75)of WD-repeat/bHLH/MYB(WBM)complexes.The ET-stabilized transcription factors ETHYLENEINSENSITIVE3(EIN3)and EIN3-LIKE1(EIL1)were found to bind to several members of WBM complexes,including GL3,ENHANCER OF GLABRA3(EGL3),TT8,GL1,MYB75,and TRANSPARENT TESTA GLABRA1(TTG1).This binding repressed the transcriptional activity of the b HLH-MYB proteins and inhibited anthocyanin accumulation,trichome formation,and defenses against insect herbivores while promoting root hair formation.Conversely,the JA-activated b HLH members GL3,EGL3,and TT8 of WBM complexes were able to interact with and attenuate the transcriptional activity of EIN3/EIL1 at the HOOKLESS1 promoter,and their overexpression inhibited apical hook formation.Thus,this study demonstrates a molecular framework for signaling crosstalk between JA and ET in plant development,secondary metabolism,and defense responses.

关键词： anthocyanin defense ethylene EIN3 jasmonate JAZs trichome WD-repeat/bHLH/MYB complexes

Dietary supplementation of bilberry anthocyanin on growth performance,intestinal mucosal barrier and cecal microbes of chickens challenged with Salmonella Typhimurium

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Journal of Animal Science and Biotechnology 2023年第3期14卷 1201-1217页

作者： Sheng Zhang Yibing Wang Jinling Ye Qiuli Fan Xiajing Lin Zhongyong Gou Shouqun Jiang Institute of Animal Science Guangdong Academy of Agricultural SciencesState Key Laboratory of Livestock and Poultry BreedingKey Laboratory of Animal Nutrition and Feed Science in South ChinaMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Animal Breeding and NutritionGuangzhou 510640GuangdongChina

Background anthocyanins(AC)showed positive effects on improving the intestinal health and alleviating intestinal pathogen infections,therefore,an experiment was conducted to explore the protective effects of supplemented AC on Salmonella-infected chickens.Methods A total of 240 hatchling chickens were randomly allocated to 4 treatments,each with 6 replicates.Birds were fed a basal diet supplemented with 0(CON,and ST),100(ACL)and 400(ACH)mg/kg of AC for d 60,and orally challenged with PBS(CON)or 10^(9) CFU/bird(ST,ACL,ACH)Salmonella Typhimurium at d 14 and 16.Results(1)Compared with birds in ST,AC supplementation increased the body weight(BW)at d 18 and the average daily gain(ADG)from d 1 to 18 of the Salmonella-infected chickens(Panthocyanin was recommended.

关键词： anthocyanin Cecal microbe Chicken Intestinal mucosal barrier Salmonella Typhimurium

pH-indicative Films Based on Chitosan–PVA/Sepiolite and anthocyanin from Red Cabbage: Application in Milk Packaging

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Journal of Bionic Engineering 2022年第3期19卷 837-851页

作者： Marya Raji Laila El Foujji Mohamed El Mehdi Mekhzoum Mounir El Achaby Hamid Essabir Rachid Bouhfid Abou el kacem Qaiss Moroccan Foundation for Advanced Science Innovation and ResearchComposites and Nanocomposites CenterRabat Design CenterRue Mohamed El JazouliMadinat El IrfaneRabat10100Morocco Faculty of Science Laboratoire de Chimie Organique Et HétérocycliqueUniversity Mohammed V in RabatRabat10100Morocco Materials Science and Nano-Engineering Department Mohammed VI Polytechnic UniversityLot 660–Hay Moulay RachidBen Guerir43150Morocco Mechanic Materialsand Composites(MMC)Laboratory of Energy EngineeringMaterials and SystemsNational School of Applied Sciences of AgadirIbn Zohr UniversityAgadir80000Morocco

Biobased smart packaging is been the most interesting research field.In this study,pH-sensitive films based on anthocyanin molecules from red cabbage and sepiolite mineral nano-clay as functional additives were studied.The films were fabricated by casting method of blend polymer Chitosan/Poly(Vinyl Alcohol)at two fillers loading(5wt.%and 10wt.%).The structural,morphological,thermal,optical,hygroscopic,and mechanical properties as well as the pH sensitivity of films were investigated.The thermal properties confirm that the amount of the anthocyanin in sepiolite was around 6.4%.The tensile strength and the young’s modulus of produced composites at 10wt.%sepiolite–anthocyanin content was increased to 8.90 MPa and 163 MPa,respectively.The maximum water absorption that the films may absorb was 12.3%.pH sensitivity analysis showed that the Smart films change the color by changing the pH level,from pink at pH lower than 6 to yellow at pH higher than 6.Thus,the developed pH-sensitive films show band gaps in visible light that make them useful for monitoring milk spoilage.

关键词： Smart packaging anthocyanin Red cabbage pH-sensitive and milk spoilage

Improve anthocyanin and Zinc Concentration in Purple Rice by Nitrogen and Zinc Fertilizer Application

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Rice science 2022年第5期29卷 435-450页

作者： Suchila UTASEE Sansanee JAMJOD Sittisavet LORDKAEW Chanakan PROM-U-THAI Department of Plant and Soil Sciences Faculty of Agriculture/Center of Agricultural Resource SystemsFaculty of Agriculture/Lanna Rice Research CenterChiang Mai UniversityChiang Mai 50200Thailand

Zinc(Zn)is an essential micronutrient for plant growth and development,and anthocyanin is a secondary metabolite compound generally produced under stress conditions;both have benefits to human health.Rice is a staple food crop for most of the world’s population,and purple rice is well known as a natural source of Zn and anthocyanins,but their stability depends upon many factors.This review focuses on the opportunity to increase Zn and anthocyanin compounds in purple rice grains via Zn and nitrogen(N)management during cultivation.Variation in grain Zn concentration and anthocyanin compounds is found among purple rice varieties,thus presenting a challenge for breeding programs aiming at high grain Zn and anthocyanin contents.Genetic engineering has successfully achieved a high-efficiency vector system comprising two regulatory genes and six structural anthocyanin-related genes driven by endosperm-specific promoters to engineer purple endosperm rice that can provide new high-anthocyanin varieties.Grain Zn and anthocyanin concentrations in rice can also be affected by environmental factors during cultivation,e.g.,light,temperature,soil salinity and nutrient(fertilizer)management.Applying N and Zn fertilizer is found to influence the physiological mechanisms of Zn absorption,uptake,transport and remobilization to promote grain Zn accumulation in rice,while N application can improve anthocyanin synthesis by promoting its biosynthesis pathway via the use of phenylalanine as a precursor.In summary,there is an opportunity to improve both grain Zn and anthocyanin in purple rice by appropriate management of Zn and N fertilizers during cultivation for specific varieties.

关键词： purple rice anthocyanin secondary metabolite zinc deficiency fertilizer

Genome-wide identification of the MATE gene family and functional characterization of PbrMATE9 related to anthocyanin in pear

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Horticultural Plant Journal 2023年第6期9卷 1079-1094页

作者： Jiawen Sheng Xuening Chen Bobo Song Hainan Liu Jiaming Li Runze Wang Jun Wu College of Horticulture State Key Laboratory of Crop Genetics and Germplasm EnhancementNanjing Agricultural UniversityNanjingJiangsu210095China College of Horticulture and Plant Conservation Henan University of Science and TechnologyLuoyangHenan471023China

Plant multidrug and toxic compound extrusion(MATE) genes play an important role in the process of detoxification, plant morphogenesis, and anthocyanin accumulation. However, whether the MATE gene family functions in pear peel coloration is still unknown. To evaluate and identify the MATE gene family members which are involving in anthocyanin accumulation and coloration in pear. In this study, 85 MATE genes were identified in the reference pear genome of ‘Dangshansuli’ through genome-wide identification. Based on gene structure and phylogenetic tree analysis, the MATE family was divided into five subfamilies. RNA sequencing and quantitative real-time polymerase chain reaction(qRTPCR) indicated that the expression patterns of PbrMATEs were tissue-specific. 28.24%(24) of PbrMATE genes were expressed in the fruits, and44.71%(38) of PbrMATE genes were expressed in the leaves. Additionally, we found that the expression levels of PbrMATE9, PbrMATE26,PbrMATE50, and PbrMATE69 in debagged fruits with red peel were significantly higher than those in bagged fruits without red peel, according to our bagging/debagging treatment of ‘Mantianhong’. The expression pattern of PbrMATE9 was consistent with the variation trend in anthocyanin content, suggesting that it might play an important role in anthocyanin accumulation in response to light exposure. Subcellular localization showed that PbrMATE9 was a membrane protein. More strikingly, the transient overexpression of PbrMATE9 promoted anthocyanin accumulation in the peel of pear, and the expression of structural genes(PbrCHI, PbrANS, PbrDFR, and PbrUFGT) in the anthocyanin biosynthesis pathway also increased significantly. Through co-expression network analysis, the transcription factors were identified, such as WRKY, COL,GATA, and BBX, which might be involved in the regulation of PbrMATE9. The study has enriched the genetic resources and improved the understanding of the regulation network of anthocyanin accumulation in pear.

关键词： Pear anthocyanin Coloration MATE gene family PbrMATE9 RNA-seq