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Analysis on Dry Matter Production Characteristics of Super Hybrid Rice

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Rice science 2008年第2期15卷 110-118页

作者： WU Wen-ge ZHANG Hong-cheng QIAN ZHAI Chao-qun DAI Qi-gen Ying-fei cheng ye Wu Gui-cheng Rice Cultivation Technology Innovation Center in the Middle and Lower Reaches of the Yangtze River Ministry of Agriculturel Rice Research Institute Anhui Academy of Agricultural Sciences Hefei 230031 China Agricultural College Yangzhou University Yangzhou 225009 China

Six middle-season indica hybrid rice combinations, including five super hybrid rice combinations with the high yield about 10.5 t/ha and a check hybrid rice combination Shanyou 63 with a yield potential about 9.5 t/ha, were used as materials to study the dry matter production characteristics. The super hybrid rice showed a high ability in dry matter production and accumulation and its yield enhanced with the increase of dry matter accumulation. The advantage period of dry matter production in the super hybrid rice was mainly at the middle and late growth stages compared with the check. The grain yield had no significant correlation with the dry matter accumulation before the elongation stage while had a significantly positive correlation with the dry matter accumulation from the elongation to maturity stages in super hybrid rice. There were more dry matter in vegetative organs at the heading stage in the super hybrid rice but its contribution to yield （apparent conversion percentage） was averagely 4.3 percent points lower than that in the check. For crop growth rate （CGR）, the comparative advantage of super hybrid rice was at the middle and late stages, especially after flowering. Moreover, as the rising of leaf area index （LAI） and leaf area duration （LAD）, CGR enhanced. The total LAD and the mean of lAD per day of super hybrid rice was about 14.79% and 10.31% higher than those of the check, respectively. The results indicate that the high yield of super hybrid rice mostly comes from the products of photosynthesis after heading, which is shown by the increased CGR at middle and later stages. It is suggested that LAD character might be used to better explain the advantage in the dry matter production of super hybrid rice than LAI.

关键词： super hybrid rice dry matter production crop growth rate leaf area duration leaf area index net assimilation rate

Production of interleukin-1β related to mammalian target of rapamycin/Toll-like receptor 4 signaling pathway during Aspergillus fumigatus infection of the mouse cornea

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International Journal of Ophthalmology(English edition) 2018年第5期11卷 712-718页

作者： Rui Xu Jing Lin Gui-Qiu Zhao Cui Li cheng-ye Che Qiang Xu Min Liu Department of Ophthalmology the Affiliated Hospital of Qingdao University

AIM：To elucidate the effect of rapamycin on regulating the production of interleukin（IL）-1β in Aspergillus fumigatus（***）-induced keratitis and to verify whether the expression of IL-1β in *** keratitis is associated with the mammalian target of rapamycin（mT OR）/Toll-like receptor 4（TLR4） signaling ***：Fungal keratitis mouse models of susceptible C57 BL/6 mice were established using *** mice were subsequently treated with *** protein levels of p-mT OR,TLR4,and IL-1β in normal and infected corneal tissue were measured by Western *** TLR4 and IL-1β m RNA levels were determined by real-time polymerase chain reaction（PCR）.RESULTS：In C57 BL/6 mice,rapamycin treatment decreased the clinical scores and production of the pro-inflammatory cytokine,IL-1β.The expression of TLR4,stimulated by ***,was reduced as well when the mT OR signaling pathway was suppressed by ***：Rapamycin is beneficial for the outcome of fungal keratitis and has an inhibitory effect expression of the inflammatory cytokine IL-1β.The inhibitory effect on IL-1β expression can be associated with the mT OR/TLR4 signaling pathway in *** infection in mice.

关键词： keratitis interleukin-1β mammalian target of rapamycin Toll-like receptor 4 mice

The expression of lacrimal androgen-binding proteins in mice Pseudomonas aeruginosa keratitis

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International Journal of Ophthalmology(English edition) 2020年第1期13卷 7-10页

作者： Le-Yu Lyu Qian Wang Qiang Xu Wen-Yi Zhao Hua Yang cheng-ye Che Department of Ophthalmology the Affiliated Hospital of Qingdao University

AIM: To investigate the expression of lacrimal androgenbinding proteins(ABPs) in mice Pseudomonas aeruginosa(P. aeruginosa) ***: P. aeruginosa mice model from different gender was developed by intra-stromal injection. The expression of lacrimal ABPs in lacrimal gland specimens from P. aeruginosa keratitis mice was detected by the quantitative polymerase chain reaction(q RT-PCR). Corneal virulence was evaluated based on clinical scores. To study the mechanism of lacrimal ABPs' expression, experimental subjects were pre-treated with 4 E-BP1 inhibitor, and were used to evaluate the expression levels by q ***: Compared with control groups, the expression of ABPα, ABPη and ABPζ in lacrimal gland from P. aeruginosa keratitis mice had no meaningful changes, while ABPε and ABPδ were significantly higher at 1 d after infection. The expression of ABPδ in lacrimal gland of male mice was higher than female mice, regardless of whether or not P. aeruginosa keratitis occurred. After 4 E-BP1 inhibitor subconjunctival injection or lacrimal injection, the expression of ABPδ and ABPε has no significant change compared with the control ***: ABPδ and ABPε secreted by mice lacrimal gland may involve in the progress of alleviating the severity of corneal damage in P. aeruginosa keratitis. The expression of ABPδ and ABPε upon P. aeruginosa infection is independent of cap-dependent m RNA translation activated by 4 E-BP1.

关键词： keratitis Pseudomonas aeruginosa androgen-binding proteins lacrimal gland

Effects of COX-2 inhibitor NS-398 on IL-10 expression in rat fungal keratitis

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International Journal of Ophthalmology(English edition) 2011年第2期4卷 165-169页

作者： Na Li cheng-ye Che Li-Ting Hu Jing Lin Qing Wang and Gui-Qiu Zhao Department of Ophthalmology the Affiliated Hospital of Qingdao University Qingdao 266003 Shandong Province China

AIM: To investigate the expression of interleukin-10 (IL-10) and the effect of NS-398 (COX-2 inhibitor) on the expression of IL-10 in fungal keratitis in rats, and analyze its effects on anti-fungus immunity. METHODS: Ninety Wister rats were randomly divided into 3 groups. Group A was blank control group (10 eyes). Group B was fungal keratitis group (40 eyes). Group C was fungal keratitis group treated with NS-398 (40 eyes). PAS staining, 100g/L potassium hydroxide (KOH) smear and fungal culture confirmed the successful establishment of fungal keratitis model. After the central epithelium was scraped, Fusarium solani colonies were applied and contact lens was put on the right cornea of group B and C, and plane contact lens was put on the left cornea of control eyes. Phosphate buffered saline (PBS) eyedrops were given for group B and NS-398 eyedrops for group C. The expression of IL-10 on corneas of group B and C on the 1(st) day, 3(rd) days, 75(th) days, and 14(th) days were detected by immunohistochemistry and semi- quantitative reverse transcription- polymerase chain reaction (RT-PCR). RESULTS: Histopathologic examination showed neutrophil infiltration and severe tissue necrosis in ulcer cornea. PAS staining confirmed the existence of hyphae and spores in the superficial layer of stroma. In the blank and control groups almost no expression of IL-10 was detected at any observing points. In group B the expression of IL-10 increased at first and decreased thereafter. Its expression also showed significant difference at any observing points (P < 0.01). Compared with group B, the expression of IL-10 in group C showed no difference on the 1(st)day, decrease on the 3(rd) day, but a significant increase on the 7(th) day and 14(th) day. CONCLUSION: IL-10 takes part in the occurrence and development of fungal keratitis. NS-398 can upgrade the expression of IL-10 in fungal keratitis in the later period of the ulcer. Meanwhile, pathologic observation showed a slightly corneal

关键词： fungal keratitis immune regulation IL-10 NS-398

Nonpharmaceutical interventions eff ectively reduced infl uenza spread during the COVID-19 pandemic

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World Journal of Emergency Medicine 2023年第3期14卷 224-226页

作者： Yuan Yuan Yan Li Jiang-shan Wang ye-cheng Liu Jun Xu Hua-dong Zhu Lu-zhao Feng Emergency Department State Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100005China School of Population Medicine&Public Health Chinese Academy of Medical Sciences/Peking Union Medical CollegeBeijing 100730China

Seasonal infl uenza,which is transmitted by droplets and direct contact,is a global public health issue that causes an average of 2.5 excess infl uenza-like illness(ILI)consultations per 1,000 person-years in China.[1]Nonpharmaceutical interventions(NPIs)against droplet and direct contact transmission,including social distancing measures and personal protective measures,are recommended to reduce the spread of *** distancing measures comprised isolating ill persons,quarantining exposed persons,school and workplace closures,and avoiding *** protective measures included hygiene,respiratory etiquette,and face masks.[2]In December 2019,coronavirus disease 2019(COVID-19)started to spread,and China introduced NPIs to address the pandemic in January *** NPIs could also help reduce the spread of other respiratory diseases,such as seasonal influenza.[3]In the second half of 2020,the COVID-19 pandemic was gradually brought under ***,transport,and schools were returning to normal,while citizens were still required to wear masks in *** of influenza also *** study compared the ILI percentage(ILI%),laboratory(LAB)-positive rate,incidence rate,and effective reproductive number(Rt)of infl uenzas from 2019 to 2022 to clarify the change in seasonal infl uenza spread after the COVID-19 outbreak.

关键词： protective measures spread

Synthesis of 1,4,6-tri-O-benzyl myo-inositol-A key intermediate to myo-inositol-1,2,5-O-trisphosphate

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Chinese Journal of Chemistry 1994年第2期12卷 174-178页

作者： YUAN, cheng-ye ZHAI, Hai-Xiao WENG, Guan-HongShanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

A new synthetic approach to 1,4,6-tri-O-benzyl myo-inositol was described on the basis of the regioselective benzylation of 1,2-O-isopropylidene-4,6-di-O-benzyl myo-inositol, subsequent acid hydrolysis, phosphorylatio... 详细信息

关键词： myo-Inositol synthesis regioselective benzylation.

Tripterygium hypoglaucum extract ameliorates adjuvant-induced arthritis in mice through the gut microbiota

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Chinese Journal of Natural Medicines 2023年第10期21卷 730-744页

作者： HU Jianghui NI Jimin ZHENG Junping GUO Yanlei YANG Yong ye cheng SUN Xiongjie XIA Hui LIU Yanju LIU Hongtao College of Basic Medical Sciences Hubei University of Chinese MedicineWuhan 430065China Chongqing Academy of Chinese Materia Medica Chongqing 400065China Wuhan Customs Technology Center Wuhan 430050China

Traditionally,Tripterygium hypoglaucum(Levl.)Hutch(THH)are widely used in Chinese folk to treat rheumatoid arthritis(RA).This study aimed to investigate whether the anti-RA effect of THH is related with the gut *** main components of prepared THH extract were identified by HPLC-MS.C57BL/6 mice with adjuvant-induced arthritis(AIA)were treated with THH extract by gavage for one *** extract significantly alleviated swollen ankle,joint cavity exudation,and articular cartilage destruction in AIA *** mRNA and protein levels of inflammatory mediators in muscles and plasma indicated that THH extract attenuated inflammatory responses in the joint by blocking TLR4/MyD88/MAPK signaling *** extract remarkably restored the dysbiosis of the gut microbiota in AIA mice,featuring the increases of Bifidobacterium,Akkermansia,and Lactobacillus and the decreases of Butyricimonas,Parabacteroides,and ***,the altered bacteria were closely correlated with physiological indices and drove metabolic changes of the intestinal *** addition,antibiotic-induced pseudo germ-free mice were employed to verify the role of the intestinal ***,THH treatment failed to ameliorate the arthritis symptoms and signaling pathways in pseudo germ-free mice,which validates the indispensable role of the intestinal *** the first time,we demonstrated that THH extract protects joint inflammation by manipulating the intestinal flora and regulating the TLR4/MyD88/MAPK signaling ***,THH extract may serve as a microbial modulator to recover RA in clincial *** practice.

关键词： Arthritis Gut microbiota Immunity Inflammation Tripterygium hypoglaucum

Investigation on reflection spectr a of chirped and phase-shifted fiber Bragg gratings

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Optoelectronics Letters 2007年第2期3卷 112-114页

作者： KANG Yun ye cheng-chun LUO Zheng-qian SI Miao-ling Department of Electronic Engineering Xiamen University Xiamen 361005 China

The characteristics of chirped and phase-shifted fiber Bragg gratings have been investigated by the use of transfer matrix formulation. While the characteristics of a chirped and phase-shifted fiber Bragg grating are the same as those of non-chirped one in some important aspects, both the reflection and transmission windows of a chirped and phase-shifted fiber Bragg grating can be broadened in a wide range. Therefore, chirped and phase-shifted fiber Bragg gratings will have appScations in WDM or DWDM optical communication systems. The work in this paper can be used to design the new devices based on chirped and phase-shifted fiber Bragg gratings.

关键词：啁啾相移光纤布拉格光栅反射谱特性数值模拟

SYNTHESES OF HINDERED ALKYL PHOSPHONATES AND PHOSPHONIC & PHOSPHINIC ACIDS

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Chinese Chemical Letters 1992年第3期3卷 167-170页

作者： Wen Xiang HU cheng ye YUAN Shu Shen LI Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032

A series of di-n-hexyl alkyl phosphonates with bulky substituent on phosphorus was synthesized by PTC P-alkylation using crown *** saponification of the resulting di-n-hexyl alkylphosphonates in the presence of crown ether or quaternary ammonium halide, corresponding mono-hexyl esters of alkyl phosphonic acids were *** wave, as we found, can catalyze the reaction between dialkyl phosphite & metallic sodium and hydrolysis of dihexyl alkyl phosphonates.A series of di-t-alkyl phosphinic acids were synthesized by the reaction of Grignard reagent with PCl_3 followed by oxidation with 30% H_2O_*** was found that the reaction between dibutyl phosphite and Grignard reagent of t-alkyl chloride is a new synthetic method for the preparation of mono-esters of highly hindered alkyl phosphonic acids.

关键词： SYNTHESES OF HINDERED ALKYL PHOSPHONATES AND PHOSPHONIC PHOSPHINIC ACIDS