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中国畜牧杂志 2024年第9期60卷 99-106页

作者：李怀宇邵天琦李锦南夏添兰 hesham youssef awad da.wish 林慕阳蔡甘先徐建生李俊英邓学梅畜禽育种国家工程实验室动物遗传资源与分子育种实验室中国农业大学动物科学技术学院北京100193 江西东华种畜禽有限公司江西抚州330029

鸡的绿壳蛋性状主要由SLCO1B3基因上游EAV-HP逆转录病毒插入导致,虽然SLCO1B3显性突变纯合的群体都产绿壳蛋,但是蛋色深浅却仍然存在着较大差异,因此本研究认为绿壳蛋颜色深浅还受到其他多基因的影响。本研究利用455只东乡高产绿壳蛋鸡S... 详细信息

鸡的绿壳蛋性状主要由SLCO1B3基因上游EAV-HP逆转录病毒插入导致,虽然SLCO1B3显性突变纯合的群体都产绿壳蛋,但是蛋色深浅却仍然存在着较大差异,因此本研究认为绿壳蛋颜色深浅还受到其他多基因的影响。本研究利用455只东乡高产绿壳蛋鸡SLCO1B3基因显性纯合个体,进行了蛋色眼观分级和蛋壳色素定量测定。本研究选择前期在21号染色体定位到的关联单核苷酸多态性(SNP)位点,利用飞行时间质谱技术进行基因型鉴定,寻找与绿壳蛋色素含量相关联的SNP。结果表明:6个SNP与绿壳蛋色素含量显著关联,对应6个候选基因AJAP1、CAMTA1、SDHB、MRPS16、DJ-1和PRDM16。本研究结果对绿壳蛋鸡的选育具有重要的意义。

关键词：绿壳蛋鸡飞行时间质谱蛋壳色素单核苷酸多态性

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Application of Plant Growth-Promoting Bacteria as an Eco-Friendly Strategy for Mitigating the Harmful Effects of Abiotic Stress on Plants

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Phyton-International Journal of Experimental Botany 2023年第12期92卷 3305-3321页

作者： Ahmed Hassan Abdou Omar Abdullah Alkhateeb Hossam Eldin Hamed Mansour hesham S.Ghazzawy Muayad Saud Albadrani Nadi awad Al-harbi Wasimah B.Al-Shammari Khaled Abdelaal Social Studies Department College of ArtsKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Agribusiness and Consumer Sciences College of Agriculture&Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia Agribusiness and Consumer Sciences Department College of Agricultural and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia date Palm Research Center of Excellence King Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Family and Community Medicine College of MedicineTaibah UniversityAl-Madinah Al-Munawara42353Saudi Arabia Biology Department University College of TaymaUniversity of TabukTabukSaudi Arabia Department of Biology College of ScienceUniversity of HailP.O.Box 2440Hail55476Saudi Arabia EPCRS Excellence Center Plant Pathology and Biotechnology LaboratoryAgricultural Botany DepartmentFaculty of AgricultureKafrelsheikh University33516Egypt

Plant growth-promoting bacteria(PGPB)play an important role in improving agricultural production under several abiotic stress *** can be used to increase crop growth and development through hormonal balance and increase nutrient *** positive effect of PGPB may be due to its pivotal role in morphophysiological and biochemical characteristics like leaf number,leaf area,and stem ***,relative water content,chlorophyll content,carotenoids,antioxidant enzymes,and plant hormones were improved with PGPB *** yield and yield components were also increased with PGPB treatment in numerous *** anatomical structure of plant organs was increased such as lamina thickness,stem diameter,xylem vessel diameter,and number of xylem vessels as well as phloem thickness under treatment with ***,PGPB can alleviate the negative effects of several abiotic stresses by regulating the antioxidant defense system to scavenge the reactive oxygen species resulting in an improvement of yield production in the stressed ***,gene expressions were controlled by calcium ion modulation during secondary messengers that act upon calcium-dependent protein kinase and protein *** includes many transcription factors such as MYB,AP2/ERF,bZIP,and NAC which regulate genes related to salinity stress *** can demonstrate induction genes of signaling under abiotic stress *** review gives an outline of the PGPB role in alleviating the harmful effects of abiotic factors such as salinity,drought,and heat associated with the improvement of the morpho-physiological and biochemical features especially,leaves and branches number,leaf area,antioxidant compounds,plant hormones,and relative water content.

关键词： PGPB salinity drought heat reactive oxygen species antioxidants gene expressions

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Performance Evaluation of One-Way Concrete Slabs Reinforced with New Developed GFRP Bars

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Materials Sciences and Applications 2015年第5期6卷 420-435页

作者： Ahmed H. Ali Mohammad Z. Afifi Bahira Abdulsalam hesham Haggag awad El Hashimy Tarek El-Sayed Hamdy M. Mohamed Department of Civil Engineering Helwan University Cairo Egypt Department of Civil and Environmental Engineering Western University London Canada

The incorporation of fiber-reinforced-polymer (FRP) bars in construction as a replacement to steel bars provides a superior material which is capable to overcome corrosion problems. However, serviceability requirements are important issues to be considered in the design of concrete elements reinforced with glass-FRP (GFRP) bars which are known to have larger deflections and wider crack widths as well as weaker bond compared with steel reinforced concrete. As a solution to this problem, square GFRP bars are proposed. This paper presents the results of an experimental investigation that was performed, in which newly developed square and circular GFRP bars were fabricated in the lab. Also, the GFRP bars were tested and used to reinforce concrete slabs. A total of nine full-scale GFRP-reinforced concrete (RC) one-way slabs were constructed, tested and analyzed, considering the most influencing parameters such as the cross sectional shape of GFRP bars, reinforcement ratio, the concrete characteristics strength, and adding polypropylene fibers to the concrete mixture. The test results were showed that, the tested slabs with GFRP square bars improved the deflection and cracking behavior as well as the ultimate load.

关键词： Square and Circular Bars GFRP Reinforcement Bars Polypropylene Fibers Concrete Slabs

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