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Brassinosteroid regulation in rice seed biology

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Seed Biology 2022年第1期1卷 42-50页

作者： Min Xiong Gong-Neng Feng Qiang Gao Chang-quan Zhang Qian-Feng Li qiao-quan liu Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/State Key Laboratory of Hybrid Rice College of AgricultureYangzhou UniversityYangzhou 225009JiangsuChina College of Marine and Biology Engineering Yancheng Institute of TechnologyYancheng 224051JiangsuChina Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education Yangzhou UniversityYangzhou 225009JiangsuChina

Rice(Oryza sativa L.)is not only a model monocotyledon plant,but also an important cereal seed *** in seed-related traits is the key to obtaining high grain yield and quality,therefore attracting attention from both scientists and crop *** higher plants,brassinosteroid(BR),a major growth-promoting hormone,plays an important role in regulating numerous agronomic traits associated with both vegetative and reproductive growth,thereby presenting huge application ***,we review recent progress into BR regulation in rice seed *** BR biosynthesis and signaling have been shown to regulate grain size,grain filling,grain number,seed germination and biosynthesis of seed ***,considering the pleiotropic effects of BR,strategies aimed at genetic modulation of the BR pathway have been proposed to improve seed-related traits in rice,and therefore,enhance both yield and *** review not only strengthens our understanding of the underlying mechanism and regulatory network of BR-regulated key agronomic traits in rice,but also facilitates the future application of BR in rice breeding programs.

关键词： breeding attracting thereby

Tangent Resistance of Soil on Moldboard and the Mechanism of Resistance Reduction of Bionic Moldboard

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Journal of Bionic Engineering 2005年第1期2卷 33-46页

作者： Deng Shi-qiao Ren Lu-quan liu Yan Han Zhi-wu Key Laboratory of Terrain-Machine Bionics Engineering （Ministry of Education China） Jilin University Changchun 130022 P. R. China

The tangent resistance on the interface of the soil-moldboard is an important component of the resistance to moving soil . We developed simplified mechanical models to analyze this resistance. We found that it is composed of two components, the frictional and adhesive resistances. These two components originate from the soil pore, which induced a capillary suction effect, and the soil-moldboard contact area produced tangent adhesive resistance. These two components varied differently with soil moisture. Thus we predicted that resistance reduction against soil exerted on the non-smooth bionic moldboard is mainly due to the elimination of capillary suction and the reduction of physical-chemical adsorption of soil.

关键词： agriculture engineering bionic moldboard interracial tangent resistance soil adhesion capillary suction

Comparison of Physicochemical Characterization of Grain Flour from Different Sweet and Grain Sorghum Varieties

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Journal of Food Science and Engineering 2017年第1期7卷 17-28页

作者： Abuelgasim Mohamed Ahmed qiao-quan liu Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Co-Innovation Center for Modern Production Technology of Grain Crops Yangzhou University Yangzhou 225009 Jiangsu China Department of Botany and Agrieultural Biotechnology Faculty of Agriculture University of Khartoum Khartoum 13314 Sudan

Worldwide interest about using sweet sorghum （sorghum bicolor L. Moench） as bio-fuel stock is booming and a little has been focused to it is grain flour composition, whereas sorghum is important for the economy of semiarid regions since it thrives and produces both grain and forage. Eight sweet sorghum and four grain sorghum were investigated for chemical composition and physico-chemical characterization. The result showed that amylose content for some sweet varieties was high （YT, 27.10%） as that of grain varieties （GL-1, 27.19%）. Total phenolic content of most sweet varieties was high relative to the grain, whereas most of the grain varieties showed thick gel. Total starch showed significant variation among varieties with higher values obtained from sweet ones （80.20% GL-6 and 82.60% GL-13）. For pasting properties all of sweet varieties clotted upper to the grain varieties in the RVA viscogram. Sweet varieties ranked lower for most of thermal properties than the grain varieties. Current result reflected that sweet varieties studied have prospective future for starch industries and generally characterized by low grain quality in respect to protein content. Among parameter studied protein content, pasting properties and thermal properties clearly exhibited different trends between sweet and grain varieties studied.

关键词： Sorghum sweet sorghum flour amylose content physico-chemical properties grain quality

Biofortification of rice with the essential amino acid lysine

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Biofortification of rice with the essential amino acid lysin...

Development and high-throughput genotyping of substitution lines carting the chromosome segments of indica 9311 in the background of japonica Nipponbare

江苏省遗传学会2017年学术研讨会——“技术创新与遗传...

作者： Hong-Yu Wu Qing-Qing Yang qiao-quan liu Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education College of Agriculture Yangzhou University Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education Yangzhou University

Rice（Oryza sativa L.）, a major staple crop worldwide, has limited levels of the essential amino acid lysine. We previously produced engineered rice with increased lysine content by expressing bacterial aspartate kinase and dihydrodipicolinate synthase and inhibiting rice lysine ketoglutarate reductase/saccharopine dehydrogenase activity. However, the grain quality, field performance, and integration patterns of the transgenes in these lysineenriched lines remain unclear. We selected several elite transgenic lines with endospermspecific or constitutive regulation of the above key enzymes but lacking the selectable marker gene. All target transgenes were integrated into the intragenic region in the rice genome. Two pyramid transgenic lines（High Free Lysine;HFL1 and HFL2） with free lysine levels in seeds up to 25-fold that of wild type were obtained via a combination of the above two transgenic events. We observed a dramatic increase in total free amino acids and a slight increase in total protein content in both pyramid lines. Moreover, the general physicochemical properties were improved in pyramid transgenic rice, but the starch composition was not affected. Field trials indicated that the growth of HFL transgenic rice was normal, except for a slight difference in plant height and grain colour. Then, a 70-day rat feeding study was conducted to assess the nutritional value of HFL1 and HFL2 lines as compared with either their wild type, lysinebiofortified rice contributed to improved growth performance, food efficiency, and lysine availability in growing rats. These findings will be useful for the potential commercialization of high-lysine transgenic rice.

关键词： rice(Oryza sativa L.) lysine metabolic engineering nutritional evaluation

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Journal of Genetics and Genomics 2011年第12期38卷 603-611页

作者： Hua Zhang Qiang Zhao Zhi-Zhong Sun Chang-quan Zhang Qi Feng Shu-Zhu Tang Guo-Hua Liang Ming-Hong Gu Bin Han qiao-quan liu Jiangsu Key Laboratory of Crop Genetics and Physiology~Key Laboratory of the Ministry of Education for Plant Functional Genomics College of Agriculture Yangzhou University Yangzhou 225009 China National Center for Gene Research Institute of Plant Physiology and Ecology Shanghai Institutes of Biological Sciences Chinese Academy of Sciences Shanghai 200233 China National Center for Plant Gene Research （Shanghai） Shanghai 200032 China

Chromosome segment substitution lines（CSSLs） are useful for the precise mapping of quantitative trait loci（QTLs） and dissection of the genetic basis of complex *** this study,two whole-genome sequenced rice cultivars,the japonica Nipponbare and indica 9311 were used as recipient and donor,respectively.A population with 57 CSSLs was developed after crossing and back-crossing assisted by molecular markers, and genotypes were identified using a high-throughput resequencing *** graphical genotypes of 38 lines were constructed based on resequencing *** CSSLs had a total of 95 substituted segments derived from indica 9311,with an average of about 2.5 segments per CSSL and eight segments per chromosome,and covered about 87.4%of the rice whole genome.A multiple linear regression QTL analysis mapped four QTLs for 1000-grain *** largest-effect QTL was located in a region on chromosome 5 that contained a cloned major QTL GW5/qSW5 for grain size in *** CSSLs with a background of Nipponbare may provide powerful tools for future whole-genome

关键词： Oryza sativa L. Chromosome segment substitution lines(CSSLs) Molecular marker-assisted selection High-throughput resequencing

Manipulation of the rice L-galactose pathway: evaluation of the effects of transgene overexpression on ascorbate accumulation and abiotic stress tolerance

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Manipulation of the rice L-galactose pathway: evaluation of ...

Dissection of brassinosteroid-regulated proteins in rice embryos during germination by quantitative proteomics

江苏省遗传学会第九次会员代表大会暨学术研讨会

作者： Gui-Yun Zhang Ru-Ru liu Chang-quan Zhang Ming-Fa Sun Guo-Hong Yan qiao-quan liu Key Laboratory of Crop Genetics and Physiology of Jiangsu Province College of Agriculture Yangzhou University Agricultural Science Institute of Coastal Region of Jiangsu

Ascorbic acid（AsA） is the most abundant water-soluble antioxidant in plants, and it plays a crucial role in plant growth, development and abiotic stress tolerance. In the present study, six key Arabidopsis or rapeseed genes involved in AsA biosynthesis were constitutively overexpressed in an elite Japonica rice cultivar. These genes encoded the GDP-mannose pyrophosphorylase（GMP）, GDP-mannose-3’,5’-epimerase（GME）, GDP-L-galactose phosphorylase（GGP）, L-galactose-1-phosphate phosphatase（GPP）, L-galactose dehydrogenase（GDH）, and L-galactono-1,4-lactone dehydrogenase（GalLDH）. The effects of transgene expression on rice leaf AsA accumulation were carefully evaluated. In homozygous transgenic seedlings, AtGGP transgenic lines had the highest AsA contents（2.55-fold greater than the empty vector transgenic control）, followed by the AtGME and AtGDH transgenic lines. Moreover, with the exception of the AtGPP lines, the increased AsA content also provoked an increase in the redox state（AsA/DHA ratio）. To evaluate salt tolerance, AtGGP and AtGME transgenic seedlings were exposed to salt stress for one week. The relative plant height, root length and fresh weight growth rates were significantly higher for the transgenic lines compared with the control plants. Altogether, our results suggest that GGP may be a key rate-limiting step in rice AsA biosynthesis, and the plants with elevated AsA contents demonstrated enhanced tolerance for salt stress.

关键词： Ascorbic acid L-galactose pathway Transgenic rice Salt stress

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Dissection of brassinosteroid-regulated proteins in rice emb...

The cGAS-STING-interferon regulatory factor 7 pathway regulates neuroinflammation in Parkinson's disease

江苏省遗传学会2016年学术年会

作者： Qian-Feng Li Min Xiong Peng Xu Li-Chun Huang Chang-quan Zhang qiao-quan liu Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Key Laboratory of Plant Functional Genomics of the Ministry of Education/Co-Innovation Center for Modern Production Technology of Grain CropsCollege of AgricultureYangzhou University

Brassinosteroids（BRs）,essential plant-specific steroidal hormones,function in a wide spectrum of plant growth and development events,including seed *** is not only a monocotyledonous model plant but also one of the most important staple food crops of human *** seed germination is a decisive event for the next-generation of plant growth and successful seed germination is critical for rice ***,little is known about the molecular mechanisms on how BR modulates seed germination in *** the present study,isobaric tags for relative and absolute quantification（iTRAQ） based proteomic approach was used to study BR-regulated proteome during the early stage of seed *** results showed that about 900 BR-responsive proteins were identified,including 91 creditable target proteins responsive to both BR-deficient and BR-insensitive ***,over 90% of the 91 target proteins shared a similar expression change *** ontology and string analysis indicated that ribosomal structural proteins,as well as proteins involved in protein biosynthesis and carbohydrate metabolism were highly *** findings not only enrich the BR-regulated protein database in rice seeds,but also allow us to gain novel insights into the molecular mechanism of BR regulated seed germination.

关键词： embryo iTRAQ brassinosteroids seed germination proteomics rice

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Neural Regeneration Research 2025年第8期20卷 2361-2372页

作者： Shengyang Zhou Ting Li Wei Zhang Jian Wu Hui Hong Wei quan Xinyu qiao Chun Cui Chenmeng qiao Weijiang Zhao Yanqin Shen Laboratory of Neurodegenerative and Neuroinjury Diseases Wuxi Medicine SchoolJiangnan UniversityWuxiJiangsu ProvinceChina

Interferon regulatory factor 7 plays a crucial role in the innate immune ***,whether interferon regulatory factor 7-mediated signaling contributes to Parkinson's disease remains *** we report that interferon regulatory factor 7 is markedly up-regulated in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced mouse model of Parkinson's disease and co-localizes with microglial *** the selective cyclic guanosine monophosphate adenosine monophosphate synthase inhibitor RU.521 and the stimulator of interferon genes inhibitor H151 effectively suppressed interferon regulatory factor 7 activation in BV2 microglia exposed to 1-methyl-4-phenylpyridinium and inhibited transformation of mouse BV2 microglia into the neurotoxic M1 *** addition,si RNA-mediated knockdown of interferon regulatory factor 7 expression in BV2 microglia reduced the expression of inducible nitric oxide synthase,tumor necrosis factorα,CD16,CD32,and CD86 and increased the expression of the anti-inflammatory markers ARG1 and *** together,our findings indicate that the cyclic guanosine monophosphate adenosine monophosphate synthase-stimulator of interferon genes-interferon regulatory factor 7 pathway plays a crucial role in the pathogenesis of Parkinson's disease.

关键词： cyclic guanosine monophosphate adenosine monophosphate synthase H151 interferon regulatory factor 7 M1 phenotype neurodegenerative disease neuroinflammation Parkinson’s disease RU521 STING type I interferon

Association between intra-pancreatic fat deposition and diseases of the exocrine pancreas: A narrative review

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World Journal of Gastroenterology 2025年第2期31卷 27-41页

作者： Jing Ye Jian-Guo Wang Rong-Qiang liu qiao Shi Wei-Xing Wang Department of General Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina Department of Pancreatic Surgery Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina

Intrapancreatic fat deposition(IPFD)has garnered increasing attention in recent *** prevalence of IPFD is relatively high and associated with factors such as obesity,age,and ***,the pathophysiological mechanisms underlying IPFD remain unclear,with several potential contributing factors,including oxida-tive stress,alterations in the gut microbiota,and hormonal *** was found to be highly correlated with the occurrence and prognosis of exocrine pan-creatic *** imaging techniques remain the primary diagnostic approach for IPFD,an expanding array of biomarkers and clinical scoring systems have been identified for screening ***,effective treatments for IPFD are not available;however,existing medications,such as glucagon-like peptide-1 receptor agonists,and new therapeutic approaches explored in animal models have shown considerable potential for managing this *** paper reviews the pathogenesis of IPFD,its association with exocrine pancreatic disea-ses,and recent advancements in its diagnosis and treatment,emphasizing the significant clinical relevance of IPFD.

关键词： Intrapancreatic fat deposition Pancreatic steatosis Nonalcoholic fatty pancreas disease Pancreatitis Pancreatic cancer