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The effects of in ovo feeding of selenized glucose on liver selenium concentration and antioxidant capacity in neonatal broilers

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Chinese Chemical Letters 2024年第6期35卷 312-315页

作者： Jiahui li Qiao Shi Ying Xue mingde Zheng Long liu Tuoyu Geng Daoqing Gong Minmeng Zhao Jiangsu Key Laboratory of Animal genetic Breeding and Molecular Design College of Animal Science and TechnologyYangzhou UniversityYangzhou 225009China Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of china Yangzhou UniversityYangzhou 225009China

Selenium is an essential trace element for humans and *** the active center of selenoproteins,the addition of selenium is beneficial to enhance the antioxidant ***,the high cost limits the application of organic Se in agriculture animal *** glucose(SeGlu)is a newly invented organoselenium material with good stability,low toxicity and low *** assay found that SeGlu was able to increase selenium deposition in liver of newborn broilers,and enhance the antioxidant capacity of liver by elevating the activities of antioxidant enzymes such as total superoxide dismutase and glutathione *** paper as the first example clarifying the mechanism of SeGlu to enhance the antioxidant ability of chicks,shows that SeGlu can be used as an organic selenium enrichment additive for early nutrition of *** a cross-discipline study involving chemistry,biology and agriculture animal science,the work may be beneficial for studies in related fields and prompt the development of the selenium science.

关键词： Selenized glucose In ovo feeding Antioxidant capacity Selenium Broiler

Organic stoichiometric cocrystals with a subtle balance of charge-transfer degree and molecular stacking towards high-efficiency NIR photothermal conversion

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Chinese Chemical Letters 2024年第10期35卷 206-212页

作者： Jieqiong Xu Wenbin Chen Shengkai li Qian Chen Tao Wang Yadong Shi Shengyong Deng mingde li Peifa Wei Zhuo Chen Institutes of Physical Science and Information Technology Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education Anhui Graphene Engineering Laboratory Anhui University department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou University Molecular Science and Biomedicine Laboratory (MBL) State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering College of Biology Aptamer Engineering Center of Hunan Province Hunan University

Charge-transfer(CT) stoichiometric cocrystals are promising choice of organic materials for unveiling the structure-property relationship. However, due to the contradiction between large CT degree required for strong NIR absorption and flexible molecular stacking, construction of stoichiomorphism-based cocystals with near-infrared(NIR) photothermal property remains challenging. Herein, the first example of stoichiomorphism-based photothermal cocrystals were accomplished through the adaptive assembly of 3,3,5,5-tetramethylbenzidine(TMB) donor and 1,2,4,5-tetracyanobenzene(TCNB) acceptor. The selective cocrystallization could be controlled by varying the donor-acceptor stoichiometries via a surfactantassisted method, resulting in two cocrystals with 1:1(T1C1) and 1:2(T2C1) stoichiometries. The absorbance intensity of T1C1 at 808 nm was nearly twice that of T2C1, while the photothermal conversion efficiency(PCE) of the former was 60.3% ± 0.6%, approximately 80% of that for the latter(75.5% ± 2.6%),which might be caused by the different intermolecular interactions in distinct molecular stacking patterns. Notably, both excellent PCEs of stoichiometric cocrystals were attributed to the nonradiative transition process, including internal conversion and charge dissociation processes, as elucidated by femtosecond transient absorption spectroscopy measurements. Furthermore, T1C1 was used as an NIR heater for preparing agarose-based photothermal hydrogel, showing great potential for light-controlled in-situ gelation. This strategy of balancing the CT degree and molecular packing orientation not only uncovered the relationship between stoichiometric stacking and photothermal property, but also provided an opportunity to develop advanced organic optoelectronic materials.

关键词： Charge-transfer cocrystal Crystal growth In-situ gelation Photothermal conversion Stoichiometric stacking

Scanning electron microscopic studies on digestive tract mucosa of mullet

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Acta Oceanologica Sinica 1991年第4期10卷 603-608页

作者： Guo Shuhua, li YuheGuo Jinxiao Test and Computation Centre, nankai university, tianjin, china department of biology, nankai university, tianjin, china

In this paper,scanning electron microscopic studies on digestive tract mucosa of mullet (liza haematocheila) are presented. This reveals the mucosal ultrastructural characteristics of the oesophagus, stomach and intestine of mullet (liza heamatocheila). These characteristics are closely related to diets (plankton,benthic algae and organic debris) ,markedly different from those of herbivorous and carnivorous fishes.

关键词： length

Effects of Ca￣（2＋）ions antagonistic to Al￣（3＋）ions poisoning in root growth，cell division and nucleolus in root tip cells of Allium cepa

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Journal of Environmental Sciences 1995年第2期7卷 190-197页

作者： liu Donghua Jiang Wusheng (department of biology, tianjin Normal university, tianjin 300074 , china)li Kunzhang (Departrnent of biology, Henan Normal university, Xinxiang 453002 , china)

ＥｆｆｅｃｔｓｏｆＣａ￣（２＋）ｉｏｎｓａｎｔａｇｏｎｉｓｔｉｃｔｏＡｌ￣（３＋）ｉｏｎｓｐｏｉｓｏｎｉｎｇｉｎｒｏｏｔｇｒｏｗｔｈ，ｃｅｌｌｄｉｖｉｓｉｏｎａｎｄｎｕｃｌｅｏｌｕｓｉｎｒｏｏｔｔｉｐｃｅｌｌｓｏｆＡ... 详细信息

ＥｆｆｅｃｔｓｏｆＣａ￣（２＋）ｉｏｎｓａｎｔａｇｏｎｉｓｔｉｃｔｏＡｌ￣（３＋）ｉｏｎｓｐｏｉｓｏｎｉｎｇｉｎｒｏｏｔｇｒｏｗｔｈ，ｃｅｌｌｄｉｖｉｓｉｏｎａｎｄｎｕｃｌｅｏｌｕｓｉｎｒｏｏｔｔｉｐｃｅｌｌｓｏｆＡｌｌｉｕｍｃｅｐａＬｉｕＤｏｎｇｈ...

关键词： Allium cepa antagonism aluminium chloride chromosorne aberration nucleolus decompo- sition.

Chromosome G-banding in plants by inducing with trypsin and urea

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Cell Research 1994年第1期4卷 79-87页

作者： CHEN RUITANG WENQIN SONG XIULAN li ZHUPING AN(department of biology, nankai university, tianjin 300071, china ) department of biology Nankai University Tianjin China

Clear G-bands were revealed by applying the TUG method on chromosomes of 5 species of higher plants (lilium davdii, Viciafaba, Hordeum vulgare, Ginkgo biloba and Triticum monococcam). Some details of the TUG method which consisted of treating chromosomes with both trypsin and urea were also studied. The mechanisms that might account for the presence of G-bands in plants were discussed.

关键词： G-banding lilium davidii Vicia faba Hordeum vulgare Ginkgo biloba Triticum monococcum

Construction of a DNA library from chromosome 4 of rice(Oryza sativa)by microdissection

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Cell Research 1998年第4期8卷 285-293页

作者： MAO YING WEI SI YUAN liANG WEN QIN SONG XIU LAN li RUI YANG CHEN (biology department, nankai university, tianjin 300071,china) biology department Nankai University Tianjin 300071 China

A simple method to create a chromosome-specific DNA library of rice, including microdissection, amplification,characterization and cloning, is described. Rice chromosome 4 from a metaphase cell has been isolated and amplified by the linker Adapter PCR (LA-PCR). The PCR products were labeled as probes with DIG-11-dUTP using the random priming *** blot analysis with rice genomic DNA and specific RFLP markers demonstrated that the PCR products were derived from rice chromosome 4. A large library comprising over 100,000recombinant plasmid microclones from rice chromosome 4was constructed. Colony hybridization showed that 58% of the clones contained single or low-copy sequences and 42%contained repetitive sequences. The size of inserts generated by PCR ranged from 140bp to *** method will facilitate cloning of the specific chromosome DNA markers and important genes of rice.

关键词： Rice chromosome 4 DNA library microdissection LA-PCR

Effects of Cd^(2+) on the nucleolus in root tip cells of Allium cepa

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Journal of Environmental Sciences 1994年第3期6卷 382-386页

作者： Jiang Wusheng liu Donghua(department of biology,tianjin Normal university,tianjin 300074,china)li Maoxue(department of biology,Peking university),Beijing 100871,china)

The effects of different concentrations of cadmium chloride ranging from 0.5 to 20 ppm on the nucleolus in root tip cells of Allium cepa were studied using the silver staining technique. The results indicated that after the treatment with Cd￣(2+),different changes in nucleolar morphology appeared. The nucleolar material was extruded from the nucleus into the cytoplasm,and the nucleoli at mitotic metaphase did not disappear. Apparently,cadmium showed a specific effects on the nucleoli in root tip cells of Allium cepa. The possible mechanism behind this phenomenon is also briefly discussed.

关键词： cadmium chloride Allium cepa,nucleolus.

Ribosomal Protein Genes S23 and L35 from Amphioxus Branchiostoma belcheri tsingtauense:Identification and Copy Number

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Acta Biochimica et Biophysica Sinica 2005年第8期37卷 573-579页

作者： Xian li Shi-Cui ZHANG~* Zhen-Hui liU Hong-Yan li department of Marine biology,Ocean university of china,Qingdao 266003,china department of Marine biology Ocean University of China Qingdao 266003 China

The complete cDNA and deduced amino acid sequences of the ribosomal proteins S23(AmphiS23)and L35(AmphiL35)from amphioxus Branchiostoma belcheri tsingtauense were identified inthis ***23 cDNA is 546 bp long and encodes a protein of 143 amino *** has a predictedmolecular mass of 15,851 Da and a pI of ***35 cDNA comprises 473 bp,and codes for a proteinof 123 amino acids with a predicted molecular mass of 14,543 Da and a pI of ***23 shares morethan 83% identity with its homologues in the vertebrates and more than 84% identity with those in ***35 is more than 63% identical to its counterparts in the vertebrates and more than52% identical to those in the *** blot analysis demonstrated the existence of 1-2 copiesof the S23 gene and 2-3 copies of the L35 gene in the genome of amphioxus *** *** in sharp contrast to the presence of 6-13 copies of the S23 gene and 15-17 copies of the L35 gene in therat *** is clear that the housekeeping genes like S23 and L35 underwent a large-scale duplication inthe vertebrate lineage,reinforcing the gene/genome duplication hypothesis.

关键词： amphioxus ribosomal protein S23 L35 copy number

Hydrogen Diffusion in Amorphous Ti_(0.88)Ni_(1.00)Film

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Chinese Chemical Letters 1997年第11期8卷 0-0页

作者： Cui Wei YAN Yan Tuan li Dai Zheng liAO(department of biology, Qufu Normal university, Qufu Shandong, 273165)(department of Chemistry, Qufu Normal university, Qufu Shandong, 273165)(department of Chemistry, nankai university, tianjin, 300071) Inst. of New Ener. Mat. Chemistry Nankai University Tianjin 300071 China

Twoe μ-oxamido complexes, [Cu(oxae)Fe(phen)2]SO4(1) and [Cu(oxae)Fe(NO2-pben)2]SO4(2) were synthesized and characterized. The magnetism of complex (1) was studied.

关键词： HYDRIDE

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