检索结果-南通市图书馆

Endogenous phytohormones and the expression of flowering genes synergistically induce flowering in loquat

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2020年第9期19卷 2247-2256页

作者： CHI Zhuo-heng WANG Yong-qing deng qun-xian ZHANG Hui PAN Cui-ping YANG Zhi-wu College of Horticulture Sichuan Agricultural UniversityChengdu 611130P.R.China Sichuan Academy of Forestry Chengdu 610081P.R.China

Flowering is an important process for the reproduction of higher *** to this point,the studies on flowering have mostly focused on the model plant Arabidopsis thaliana,and the flowering mechanism of fruit trees remains mostly *** diversity of the flowering time of loquat(Eriobotrya japonica Lindl.)makes it an ideal material to study the regulation of *** this study,we first observed the inflorescence bud differentiation in two varieties of loquat that had different blooming times(***(***),that blooms in the fall and ***(***×Eriobotrya bengalensis Hook.f.)that blooms in the spring)and found that the starting time of inflorescence bud differentiation and the speed of inflorescence development were responsible for the difference in blooming *** determination of endogenous phytohormones by high performance liquid chromatography(HPLC)indicated that abscisic acid(ABA),zeatin(ZT),and gibberellin(GA3)promoted flowering in loquat,while indole-3-acetic acid(IAA)was mainly involved in inflorescence bud differentiation in Chunhua.A transcription level analysis illustrated that multiple flowering-related genes could respond to different signals,integrate to the TFL1,AP1 and FT genes,and then synergistically regulate flowering in ***,this study provides a new insight into flowering regulation mechanisms in loquat.

关键词： loquat inflorescence bud differentiation flowering endogenous hormones gene expression

在线全文

学校读者我要写书评

暂无评论

腐植酸水溶肥对枇杷幼苗生长的影响

湖北农业科学 2024年第1期63卷 85-89页

作者：徐雅欣陈铭敏向胤春林立金张慧芬罗弦邓群仙四川农业大学果蔬研究所成都611130 四川农业大学园艺学院成都611130

为研究叶面喷施腐植酸水溶肥对枇杷[Eriobotrya japonica(Thunb.)Lindl.]幼苗生长的影响,以大五星枇杷幼苗为材料,叶面喷施不同稀释浓度(700、1 000、1 300、1 600倍)的腐植酸水溶肥,以喷施等量清水为对照(CK),测定腐植酸水溶肥对枇杷... 详细信息

为研究叶面喷施腐植酸水溶肥对枇杷[Eriobotrya japonica(Thunb.)Lindl.]幼苗生长的影响,以大五星枇杷幼苗为材料,叶面喷施不同稀释浓度(700、1 000、1 300、1 600倍)的腐植酸水溶肥,以喷施等量清水为对照(CK),测定腐植酸水溶肥对枇杷幼苗生物量、光合色素含量和抗氧化酶活性的影响。结果表明,叶面喷施不同浓度的腐植酸水溶肥提高了枇杷幼苗茎杆和叶片生物量、光合色素含量,且均以稀释1 000倍效果最好。稀释1 000、1 300倍腐植酸水溶肥处理提高了枇杷幼苗过氧化氢酶(CAT)、过氧化物酶(POD)和超氧化物歧化酶(SOD)活性。枇杷幼苗茎杆、叶片生物量与叶绿素a、叶绿素b、类胡萝卜素含量、CAT活性、POD活性和SOD活性呈正相关。因此,叶面喷施腐植酸水溶肥能够促进枇杷幼苗生长,且以稀释1 000倍最佳。

关键词：腐植酸水溶肥枇杷[Eriobotrya japonica(Thunb.)Lindl.]幼苗生长光合生理抗氧化生理

维普期刊数据库博看期刊

Scattering of Water Waves by Dual Symmetric Inclined Floating Porous Barriers Using the DBEM

在线全文

学校读者我要写书评

暂无评论

China Ocean Engineering 2024年第1期38卷 156-168页

作者： WANG Li-xian deng Yan-wen YE Yang-sha deng Zheng-zhi Key Laboratory of High Performance Ship Technology(Wuhan University of Technology) Ministry of EducationWuhan 430063China School of Naval Architecture Ocean and Energy Power EngineeringWuhan University of TechnologyWuhan 430063China Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province Changsha 410114China Institute of Port Coastal and Offshore EngineeringZhejiang UniversityZhoushan 316021China

The scattering of normally incident water waves by two surface-piercing inclined perforated barriers in water with a uniform finite depth is investigated within the framework of linear water wave *** that thin barriers are zero-thickness,a novel numerical method involving the the coupling of the dual boundary element method(DBEM)with damping layers is *** order to effectively damp out the reflected waves,two damping layers,instead of pseudoboundaries are implemented near the two side boundaries of the computational ***,the modified linearized free surface boundary conditions are formulated and used for solving both the ordinary boundary integral equation as well as the hypersingular boundary integral equation for degenerate *** newly developed numerical method is validated against analytical methods using the matched eigenfunction expansion method for the special case of two vertical barriers or the inclined angle to the vertical being *** influence of the length of the two damping layers has been ***,these findings are also validated against previous results for several *** validation,the numerical results for the reflection coefficient,transmission coefficient and dissipation coefficient are obtained by varying the inclination angle and porosity-effect *** effects of both the inclination angle and the porosity on the amplitudes of wave forces acting on both the front and rear barriers are also *** is found that the effect of the inclination angle mainly shifts the location of the extremal values of the reflection and the transmission ***,a moderate value of the porosity-parameter is quite effective at dissipating wave energy and mitigating the wave loads on dual barriers.

关键词： dual boundary element method inclined perforated floating breakwater reflection coefficient transmission coefficient damping layer

Optimization of Extraction Technology of Pigments from Petals of Matthiola incana(L.)*** Different Colors

在线全文

学校读者我要写书评

暂无评论

Chinese Food Science 2012年第1期1卷 10-13页

作者： ZHANG Xiao-ai deng qun-xian LI Ming-yang ZUO Jing College of Horticulture Sichuan Agricultural University Horticultural Project Research Center College of Horticulture and GardenSouthwest University

[ Objective] The paper aimed to study the optimum extraction technology of pigments from petals of Matthiola incana（ L. ） R. Br. of differ- ent colors. [Method] Petal pigments of Aida variety （white violet）, Francesco variety （ red violet） and Arabella variety （ purple violet） were ana- lyzed by colorimetric reaction method and ultraviolet-visible spectrum method, and the optimum extraction technology of flavonoid compounds from petals of them was determined by single factor experiment and orthogonal experiment. [ Result] The optimum extraction conditions of white violet were as follows： with 95% ethanol ＋ 5% HCI as solvent, solid-liquid ratio （ 1 ： 40）, extraction time （3 h）, extraction temperature （65 ℃ ）. The opti- mum extraction conditions of red violet and purple violet were as follows： with acetone as solvent, solid-liquid ratio （1：40）, extraction time （3 h）, extraction temperature （65 ℃）. [ Conclusion] The study provided theoretical foundation for further development and exploitation of pigments from M. incana（ L. ） R. Br.

关键词： Matthiola incana ( L. ) R. Br. Flavonoid compound Pigment Extraction China

Reconceptualization of immune checkpoint inhibitor-associated gastritis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2024年第36期30卷 4031-4035页

作者： Ying-Fang deng xian-Shu Cui Liang Wang Department of Oncology Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina Department of Gastrointestinal Oncology Surgery Affiliated Hospital of Qinghai UniversityXining 810000Qinghai ProvinceChina

In recent years,with the extensive application of immunotherapy in clinical practice,it has achieved encouraging therapeutic *** enhancing clinical efficacy,however,it can also cause autoimmune damage,triggering immunerelated adverse events(irAEs).Reports of immunotherapy-induced gastritis have been increasing annually,but due to its atypical clinical symptoms,early diagnosis poses a certain ***,it can lead to severe complications such as gastric bleeding,elevating the risk of adverse outcomes for solid tumor patients if immunotherapy is ***,gaining a thorough understanding of the pathogenesis,clinical manifestations,diagnostic criteria,and treatment of immune-related gastritis is of utmost importance for early identification,diagnosis,and ***,the treatment of immune-related gastritis should be personalized according to the specific condition of each *** patients with grade 2-3 irAEs,restarting immune checkpoint inhibitors(ICIs)therapy may be considered when symptoms subside to grade *** restarting ICIs therapy,it is often recommended to use different types of *** grade 4 irAEs,permanent discontinuation of the medication is necessary.

关键词： Programmed cell death receptor-1 Programmed cell death-ligand 1 Cytotoxic T lymphocyte-associated antigen 4 Immune-related adverse events Immune-related gastritis

Flexural behavior of textile reinforced mortar-autoclaved lightweight aerated concrete composite panels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2024年第5期18卷 776-787页

作者： Liying GUO Mingke deng Wei ZHANG Tong LI Yangxi ZHANG Mengyu CAO xian HU Department of Civil Engineering Xi’an University of Architecture and TechnologyXi’an 710055China Key Lab of Structural Engineering and Earthquake Resistance Ministry of Education(XAUAT)Xi’an 710055China Scene engineering design institute Xi’an 710016China Dahua Group Shang hai 200062China

To improve the deficiencies of prefabricated autoclaved lightweight aerated concrete(ALC)panel such as susceptibility to cracking and low load-bearing capacity,a textile-reinforced mortar-autoclaved lightweight aerated concrete(TRM-ALC)composite panel was developed in this *** group of reference ALC panels and five groups of TRM-ALC panels were fabricated and subjected to four-point flexural *** was applied on the tensile side of the ALC panels to create *** variable parameters were the plies of textile(one or two),type of textile(basalt or carbon),and whether the matrix(without textile)was applied on the compression side of *** results showed that a bonding only 8-mm-thick TRM layer on the surface of the ALC panel could increase the cracking load by 180%−520%.The flexural capacity of the TRM-ALC panel increased as the number of textile layers *** reinforcement of the matrix on the compressive side could further enhance the stiffness and ultimate loadbearing capacity of the TRM-ALC *** panels with basalt textile failed in flexural mode,with the rupture of fabric *** with carbon textile failed in shear mode due to the ultra-high tensile strength of *** addition,analytical models related to the different failure modes were presented to estimate the ultimate load-carrying capacity of the TRM-ALC panels.

关键词： prefabricated autoclaved lightweight aerated concrete panel textile-reinforced mortar cracking load flexural capacity stiffness

Design and construction of charged-particle telescope array for study of exotic nuclear clustering structure

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第8期35卷 114-123页

作者： Zheng‑Li Liao Xi‑Guang Cao Yu‑Xuan Yang Chang‑Bo Fu xian‑Gai deng Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China Zhengzhou University Zhengzhou 450001China Key Laboratory of Nuclear Physics and Ion‑beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Research Center for Theoretical Nuclear Physics NSFC and Fudan University Shanghai 200438China

The exploration of exotic shapes and properties of atomic nuclei,e.g.,αcluster and toroidal shape,is a fascinating field in nuclear *** study the decay of these nuclei,a novel detector aimed at detecting multipleα-particle events was designed and *** detector comprises two layers of double-sided silicon strip detectors(DSSD)and a cesium iodide scintillator array coupled with silicon photomultipliers array as light sensors,which has the advantages of their small size,fast response,and large dynamic *** coupled with cesium iodide crystal arrays are used to distinguish multipleα*** detector array has a compact and integrated design that can be adapted to different experimental *** detector array was simulated using Geant4,and the excitation energy spectra of someα-clustering nuclei were reconstructed to demonstrate the *** simulation results show that the detector array has excellent angular and energy resolutions,enabling effective reconstruction of the nuclear excited state by multipleαparticle *** detector offers a new and powerful tool for nuclear physics experiments and has the potential to discover interesting physical phenomena related to exotic nuclear structures and their decay mechanisms.

关键词： Cluster decay Toroidal structure Telescope array SiPM Energy resolution

Studies on genetic relationships among Oakleaf loquat, Daduhe loquat and common loquat by RAPD and ISSR

在线全文

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology 2009年第1期3卷 17-22页

作者： FU Yan YANG Qin LUO Nan WANG Yong-qiang deng qun-xian QIU Yuan LI Jun-qiang RUAN Guang-lun College of Forestry and Horticulture Sichuan Agricultural University Ya ＇an 625014 China Zigong Agricultural Bureau Zigong 643000 China Fruit Office of Fuling Area of Chongqing Chongqing 408000 China

The genetic relationships among oakleaf loquat （Eriobotrya prinoides）, Daduhe loquat （Eriobotrya prinoides var. dadunensis） and common loquat （Eriobotrya japonica） were studied by RAPD and ISSR markers. The results showed that the similarity coefficient between oakleaf loquat and common loquat was minimal （0.6996 and 0.7219, respectively） and the similarity coefficient between oakleaf loquat and Daduhe loquat was maximal （0.8403 and 0.8211, respectively）, while the similarity coefficient between Daduhe loquat and common loquat was always intermediate （0.7195 and 0.7219, respectively）. The highest additivity was obtained when Daduhe loquat was regarded as the undetermined hybrid （44.9% and 45.8%, respectively）. The specific bands of oakleaf loquat and common loquat were present in Daduhe loquat. Thus, it could be concluded that Daduhe loquat was a hybrid of oakleaf loquat and common loquat.

关键词： Eriobotrya prinoides Eriobotrya prinoides vat. dadunensis Eriobotryajaponica genetic relationship RAPD ISSR

Prognostic factors for lacrimal gland adenoid cystic carcinoma:a retrospective study in Chinese patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第8期17卷 1423-1430页

作者： Lu-Di Yang Shi-Chong Jia Jie Yang Xin Song Ye-Fei Wang xian-qun Fan Department of Ophthalmology Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Shanghai 200011China Tianjin Eye Hospital Tianjin Key Lab of Ophthalmology and Visual ScienceNankai University Affiliated Eye HospitalTianjin Eye InstituteTianjin 300074China

AIM:To explore the prognostic factors for lacrimal gland adenoid cystic carcinoma(LGACC)in Chinese ***:Clinical and histopathological data were reviewed in patients with pathologically confirmed *** recurrence,metastasis,and disease-specific death were the main outcome *** and multivariate analyses were performed by the Kaplan-Meier method and a Cox proportional hazard ***:This retrospective cohort study included 45 patients with pathologically confirmed LGACC between January 2008 and June ***(T)classification(P=0.005),nodal metastasis(N)classification(P=0.018)and positive margin(P=0.008)were independent risk factors of recurrence;T(P=0.013)and N(P=0.003)classification and the basaloid tumor type(P=0.032)were independent risk factors for metastasis;T classification(P<0.001)was an independent factor of death of *** the further analysis,the durations from first surgery to radiotherapy is correlated with metastatic risk in LGACC patients with basaloid component(P=0.022).CONCLUSION:Histological subtype should be emphasized when evaluating prognosis and guiding *** radiotherapy may reduce the risk of metastasis in patients with basaloid component.

关键词： lacrimal gland adenoid cystic carcinoma risk factors prognostic analysis histological subtypes