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Irrigation system and land use effect on surface water quality in river, at lake Dianchi, Yunnan, China

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Journal of Environmental Sciences 2013年第6期25卷 1107-1116页

作者： Takashi Tanaka Takahiro Sato Kazuo Watanabe Ying Wang Dan Yang Hiromo Inoue Kunzhi Li Tatsuya Inamura Graduate School of Agriculture Kyoto University Biotechnology research Center Kunming University of Science and Technology Crop and Environmental Sciences Division International Rice Research Institute Center for Southeast Asian Studies Kyoto University

The surface water samples were collected in river Dahe and its tributaries, which flow into severely eutrophic lake Dianchi, Yunnan Province, China, in order to elucidate factors controlling water quality fluctuations. The temporal and spatial distribution of water quality tendency was observed. The water quality of each river is dependent on the hydrology effect such water gate and circulating irrigation system. We must consider the hydrology effect to accurately understand water quality variations of river in this study field. In river without highly circulating irrigation system or water gate effect, the downstream nitrate nitrogen （NO3-N） concentration increase occurred in area dominated by open field cultivation, whereas the NO3-N concentration was constant or decreased in area dominated by greenhouse land use. This result suggests that greenhouse covers the soil from precipitation, and nitrate load of greenhouse could be less than that of open field cultivation while the rainfall event. In the upper reaches of river, where is dominated by open field cultivation, there were no sharp increase dissolved molybdate reactive phosphorus and total phosphorus concentration, but P load was accumulated in the lower reaches of river, whose predominant land use is greenhouse. Although the P sources is unclear in this study, greenhouse area may have potential of P loads due to its high P content in greenhouse soil. Considering hydrology effect is necessary to determine what the major factor is influencing the water quality variation, especially in area with highly complicated irrigation system in this studying site.

关键词： lake Dianchi eutrophication surface water quality land use plastic greenhouse circulating irrigation

Comparative Analysis of Genetic Diversity and Structure in rice Using ILP and SSR Markers

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rice science 2010年第4期17卷 257-268页

作者： HUANG Ming XIE Fang-min CHEN Li-yun ZHAO Xiang-qian L. JOJEE D. MADONNA rice research institute Hunan Agricultural University Changsha 410128 China Plant Breeding Genetics and Biotechnology Division International Rice Research Institute Metro Manila DAPO Box 7777 Philippines Grain Quality Nutrition and Postharvest Center International Rice Research Institute Metro Manila DAPO Box 7777 Philippines

Genetic diversity of 36 rice entries from the United States Department of Agriculture （USDA） rice collection was assessed using 103 ILP （intron length polymorphism） and 54 SSR （simple sequence repeats） markers. A total of 236 and 332 alleles were detected by the ILP and SSR markers, respectively. On average, the SSR markers produced higher polymorphism information content value and number of alleles than the ILP markers. Whereas the Nei＇s genetic distance measured using the SSR markers was much higher than that measured using the ILP markers. Manters test indicated that there was a statistically significant correlation （r=0.827, P〈0.001 ） between the two marker systems. UPGMA clustering based on the ILP and SSR markers resulted in consensus dendrograms. The cophenetic correlation coefficient （r=0.918, 0.878 and 0.924, P〈0.001 for the ILP, SSR and combined markers, respectively） showed a highly accurate dendrogram represented the genetic distance among these entries. The 36 entries were divided into four groups. Four African Oryza glaberrima accessions were clustered within a distinct group （I）, and the remaining entries were separated into three groups （11, III and IV）. All the entries could be also clustered into two main groups： One was composed of III and IV, considered as indica group, and the other was composed of I （O. glaberrima） and II （japonica-like）. Model-based cluster analysis revealed that the japonica-like group maintained very pure ancestry while the indica group shared mixed ancestry, especially for group III, which had seven admixtures sharing from 19.5% to 30.0% of ancestry with group IV （based on SSR markers）. It is suggested that ILP and SSR markers could be very useful for the genetic study and breeding in rice.

关键词： rice genetic diversity cluster analysis structure simple sequence repeats intron length polymorphism

Root morphology in response to nitrogen supply in mid-season indica rice cultivars released in different decades

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Science China(Life Sciences) 2017年第4期60卷 439-442页

作者： Yikai Zhang Huizhe Chen Yuping Zhang Jing Xiang Guangmei Ji Defeng Zhu State Key Laboratory of rice Biology China National Rice Research Institute Hangzhou 310006 China rice research institute of Guizhou Province Guiyang 550006 China

Dear Editor,Roots,as a major organ of plants,are involved in nutrient and water acquisition,and might play a vital role in yield increase and efficient N absorption with genetic *** of the great differences in growth period and pattern between the old and new rice cultivars,it is difficult to clarify how genetic improvements contribute to root growth in rice.

关键词： Roots shoot vital nutrient length season breeding clarify cultivar roots

Decline and fall of aging astrocytes:the human perspective

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Neural Regeneration research 2025年第6期20卷 1713-1714页

作者： Alexei Verkhratsky Alexey Semyanov Faculty of Biology Medicine and HealthThe University of ManchesterManchesterUK Department of Neurosciences University of the Basque Country UPV/EHU and CIBERNEDLeioaSpain Department of Forensic Analytical Toxicology School of Forensic MedicineChina Medical UniversityShenyangLiaoning ProvinceChina Department of Stem Cell Biology State Research Institute Centre for Innovative MedicineVilniusLithuania international Collaborative Center on Big Science Plan for Purinergic Signalling Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina Department of Physiology Jiaxing University College of MedicineJiaxingZhejiang ProvinceChina

“Last scene of all that ends this strange,eventful history,is second childishness and mere oblivion.I am sans teeth,sans eyes,sans taste,sans everything.”William Shakespeare‘As You Like It'Act 2,Sc.7,l.139Aging of the human brain is characterized by a progressive decline of its functional capacity;this decline however varies widely,and cognitive longevity differs substantially between individuals.

关键词： aging teeth progressive

地球大数据评估中国环境类可持续发展目标进展

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Science Bulletin 2023年第24期68卷 3129-3132页

作者：郭华东黄磊骆磊刘洁李晓松 international research Center of Big Data for Sustainable Development Goals Beijing 100094China Aerospace Information research institute Chinese Academy of SciencesBeijing 100094China

We have passed the halfway point towards achieving the 2030 Agenda for Sustainable Development since its adoption in *** the Sustainable Development Goals(SDGs)and conducting a mid-term evaluation of their implementat... 详细信息

关键词： Sustainable 可持续发展目标数据评估

Treating amyotrophic lateral sclerosis with allogeneic Schwann cell-derived exosomal vesicles: a case report

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Neural Regeneration research 2025年第4期20卷 1207-1216页

作者： Pascal J.Goldschmidt-Clermont Aisha Khan George Jimsheleishvili Patricia Graham Adriana Brooks Risset Silvera Alexander J.P.Goldschmidt Damien D.Pearse W.Dalton Dietrich Allan D.Levi James D.Guest Miller School of Medicine University of MiamiMiamiFLUSA Stem Cell institute Miller School of MedicineUniversity of MiamiMiamiFLUSA The Miami Project to Cure Paralysis Miller School of MedicineUniversity of MiamiMiamiFLUSA Alzady international LLC MiamiFLUSA Neurological Surgery Miller School of MedicineUniversity of MiamiMiamiFLUSA

Schwann cells are essential for the maintenance and function of motor neurons,axonal networks,and the neuromuscular *** amyotrophic lateral sclerosis,where motor neuron function is progressively lost,Schwann cell function may also be ***,important signaling and potential trophic activities of Schwann cell-derived exosomal vesicles have been *** case report describes the treatment of a patient with advanced amyotrophic lateral sclerosis using serial intravenous infusions of allogeneic Schwann cell-derived exosomal vesicles,marking,to our knowledge,the first instance of such *** 81-year-old male patient presented with a 1.5-year history of rapidly progressive amyotrophic lateral *** initial diagnosis,the patient underwent a combination of generic riluzole,sodium phenylbutyrate for the treatment of amyotrophic lateral sclerosis,and *** patient volunteered to participate in an FDA-approved single-patient expanded access treatment and received weekly intravenous infusions of allogeneic Schwann cell-derived exosomal vesicles to potentially restore impaired Schwann cell and motor neuron *** confirmed that cultured Schwann cells obtained from the amyotrophic lateral sclerosis patient via sural nerve biopsy appeared impaired(senescent)and that exposure of the patient’s Schwann cells to allogeneic Schwann cell-derived exosomal vesicles,cultured expanded from a cadaver donor improved their growth capacity in *** a period of observation lasting 10 weeks,during which amyotrophic lateral sclerosis Functional Rating Scale-Revised and pulmonary function were regularly monitored,the patient received weekly consecutive infusions of 1.54×1012(×2),and then consecutive infusions of 7.5×1012(×6)allogeneic Schwann cell-derived exosomal vesicles diluted in 40 mL of Dulbecco’s phosphate-buffered *** of the infusions were associated with adverse events such as infusion reactions(allergic or otherwise)or

关键词： allogeneic amyotrophic lateral sclerosis exosomes infusion neuromuscular junction Schwann cell

Elevation and Land Use Types Have Significant Impacts on Spatial Variability of Soil Organic Matter Content in Hani Terraced Field of Yuanyang County,China

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rice science 2015年第1期22卷 27-34页

作者： LI Feng-bo LU Guang-de ZHOU Xi-yue NI Hui-xiang XU Chun-chun YUE Chao YANG Xiu-mei FENG Jin-fei FANG Fu-ping rice Science & Technology Information Center China National Rice Research Institute Agro-Tech Extension Center of Yuanyang

Soil organic matter （SOM） content is one of the most important indicators of the sustainability of soil. To maintain sustainable soil utilization and management in fragile Hani terraced field, it is meaningful to investigate the effects of topography and land use type on SOM content. Descriptive statistics and geostatistics were used to analyze the data and the kriging method was applied to map the spatial patterns of SOM content. The results showed that the mean SOM content was 32.76 g/kg, with a variation coefficient of 40%. The SOM content was affected by elevation and land use type. As the increase of elevation, the SOM content in Hani terraced field also increased obviously. The SOM content in tea garden, which is almost at high elevation, was the highest in all six land use types, and the SOM content decreased in a following sequence： tea garden 〉 paddy field 〉 corn field 〉 banana garden 〉 cassava field 〉 sugarcane field. In addition, at the same elevation, the paddy field had the highest SOM content compared with other land use types. All these results demonstrate that paddy field is the most efficient and suitable land use type for SOM conservation at high, middle or low elevations in the fragile Hani terraced field. In order to protect soil quality and maintain the sustainable agricultural development, it is necessary to maintain or even to enlarge the area of paddy field in Yuanyang county, Yunnan Province, China.

关键词： Hani terraced field elevation land use type geostatistics soil organic matter content

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水稻对紫外光B辐射增强的生化适应机制

作物学报 1998年第4期24卷 464-469页

作者：黄少白戴秋杰刘晓忠彭少兵 B.S.Vergara 江苏省农业科学院农业生物遗传生理研究所江苏南京210014 international rice research institute P.O.Box 933

水稻品种IR68和Dular生长在室外条件下,在以自然条件(6.0)、13.0和19.1 kJm^(-2) day(-1)(分别模拟臭氧浓度下降20％和40％时的UV-B强度)的紫外光B(UV-B 280～320nm)进行二周与四周的照射处理,研究UV-B对水稻叶片内一些生化指标的影响... 详细信息

水稻品种IR68和Dular生长在室外条件下,在以自然条件(6.0)、13.0和19.1 kJm^(-2) day(-1)(分别模拟臭氧浓度下降20％和40％时的UV-B强度)的紫外光B(UV-B 280～320nm)进行二周与四周的照射处理,研究UV-B对水稻叶片内一些生化指标的影响。研究结果表明:UV-B辐射增强诱导了二个水稻品种叶片内吸收UV的类黄酮化合物的积累,同时使叶片内多胺的含量明显提高。然而,19.1 kJm^(-2)day^(-1)的UV-B辐射显著抑制了IR68和Dular叶片内的过氧化氢酶和SOD酶的活性。UV-B强度的增加比处理时间的延长对这些指标的影响更明显。以上结果说明,水稻是通过吸收UV的类黄酮和多胺的积累而不是以提高抗氧化酶的活性来适应UV-B辐射增强的。

关键词：水稻紫外光B 类黄酮多胺 SOD 辐射增强

Identification of QTLs for Cadmium Tolerance During Seedling Stage and Validation of qCDSL1 in rice

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rice science 2021年第1期28卷 81-88页

作者： Ding Shilin Liu Chaolei Shang Lianguang Yang Shenglong Zhang Anpeng Jiang Hongzhen Ruan Banpu Fang Guonan Tian Biao Ye Guoyou Guo Longbiao Qian Qian Gao Zhenyu Root Biology Center College of Resources and EnvironmentFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of rice Biology China National Rice Research InstituteHangzhou 310006China Agricultural Genomics institute Chinese Academy of Agricultural SciencesShenzhen 518120China Strategic Innovation Platform International Rice Research InstituteDAPO Box 7777Metro Manilathe Philippines

Cadmium(Cd)is a non-essential toxic metal that is harmful to *** investigate the genetic mechanism of Cd tolerance in rice,quantitative trait loci(QTLs)associated with Cd tolerance at the seedling stage were analyzed using a recombinant inbred line(RIL)population derived from a cross between PA64s and 93-11.A total of 36 QTLs associated with shoot length,root length,shoot dry weight,root dry weight and total dry weight were detected in Hangzhou and Lingshui of *** them,15 QTLs were identified under the control condition and 15 QTLs were identified under the Cd stress condition,and 6 QTLs for Cd tolerant coefficient were detected on chromosomes 1,3,7 and *** qCDSL1.1 and qCDSL1.2 were identified in Hangzhou and Lingshui,respectively,and had overlapping intervals on chromosome *** further confirm the effects of qCDSL1.1 and qCDSL1.2,we developed a chromosome segment substitution line(CSSL),CSSLqCDSL1,in 93-11 background harboring qCDSL1.1/qCDSL1.2 from *** to 93-11,CSSLqCDSL1 had increased shoot length under the Cd stress *** results pave the way for further isolation of those genes controlling Cd tolerance in rice and marker-assistant selection of rice elite varieties with Cd tolerance.

关键词： cadmium tolerance recombinant inbred line qCDSL1 rice quantitative trait locus