Synthetic Biology and Metabolic Engineering for Marine Carotenoids: New Opportunities and Future Prospects     

Chonglong Wang  Jung-Hun Kim  Seon-Won Kim 《Marine drugs》2014,12(9):4810-4832

Carotenoids are a class of diverse pigments with important biological roles such as light capture and antioxidative activities. Many novel carotenoids have been isolated from marine organisms to date and have shown various utilizations as nutraceuticals and pharmaceuticals. In this review, we summarize the pathways and enzymes of carotenoid synthesis and discuss various modifications of marine carotenoids. The advances in metabolic engineering and synthetic biology for carotenoid production are also reviewed, in hopes that this review will promote the exploration of marine carotenoid for their utilizations.  相似文献   

孤雌拟长跗摇蚊实验室规模培养技术及生活史研究     

姜永伟  卢雁  丁振军  杜晶  王俊才 《现代农业科技》2014,(5):237-238,240

研究了孤雌拟长跗摇蚊实验室连续规模培养技术,在恒温20、25、28℃条件下对其生活史进行了详细地记录。结果显示:槐叶-黏土培养基适于作为该种摇蚊的食物及筑巢来源。生活史方面,恒温20℃条件下,约25.5 d经历1个世代;恒温25℃,约19.5 d经历1个世代;恒温28℃,约15.5 d经历1个世代。又因该种生物对水质反应敏感,适于作为模式生物进行开发。  相似文献   

地方院校细胞生物学教学改革的探索与实践     

李小玲  华智锐 《安徽农学通报》2014,(16):138-140

细胞生物学是生命科学中一门重要的专业基础课,也是近年来生命科学中发展最活跃的学科之一,在生命科学教育中占有核心地位。该文重点探讨了利用研究性教学方法改革传统课堂教学模式的新思路,并对细胞生物学的教学内容进行了调整和优化。旨在全面提高教学质量,提高学生的综合素质。这一教学改革对于实现高素质应用型人才的培养目标具有较大的现实意义。  相似文献   

论综合教学方法在提高细胞生物学教学质量上的作用     

帕孜来提·拜合提  吾甫尔·米吉提  计巧灵  阿布都卡地尔·阿布力孜  王咏星 《安徽农学通报》2014,(13):158-162

“细胞生物学”是近十几年高校和研究院所生物学专业硕士研究生必考课程,其课程的改革和教学水平的提高备受关注。该文对近年来细胞生物学的课程建设和民族班双语教学与2004-2010年学生考生物学专业研究生成绩的关系进行了分析,以此来评估细胞生物学课程建设和民族班双语教学对提高本科生生物学专业考研率方面的推动作用。  相似文献   

分子生物学教学改革探究   总被引：1，自引：0，他引：1  

苏成付 《安徽农业科学》2014,(19):6497-6498

针对六盘水师范学院分子生物学教学存在的问题,结合教学实践,从理论课教学改革和实验课教学改革两方面对该课程进行了阐述,以期在今后分子生物学课程的教学过程中取得更好的效果。  相似文献   

茶蚜生物学及综合防治研究进展     

李慧玲  吴光远  王定锋  张辉  刘丰静  曾明森  王庆森 《福建省农科院学报》2014,(12):1265-1270

茶蚜是我国茶树的主要害虫之一。本文概述了茶蚜的主要生物学、生态学以及综合防治技术方面的进展,主要包括茶蚜的形态特征、发生规律、茶蚜对寄主的选择以及综合防治等,并对今后的工作重点进行了展望。  相似文献   

辽宁省近岸海洋环境质量状况与趋势评价   总被引：1，自引：0，他引：1  

宋伦  周遵春  王年斌  吴金浩  姜北 《水产科学》2007,26(11):613-618

根据2004—2006年辽宁省近岸海域的生物和沉积物质量监测,对该区域的环境质量状况和趋势作出分析和评价。结果表明,辽宁省近岸海域环境质量呈逐年恶化的态势,尤其是重金属Pb和Cd残留量超标较严重,2006年生物体重金属Pb、As和沉积物As残留量超标率接近100%。  相似文献   

Fish and flows: Abiotic drivers influence the recruitment response of a freshwater fish community throughout a regulated lotic system of the Murray-Darling Basin,Australia     

Jerom R. Stocks  Sam Davis  Marti J. Anderson  Martin W. Asmus  Katherine J.M. Cheshire  Dylan E. van der Meulen  Chris T. Walsh  Dean M. Gilligan 《水产资源保护:海洋与淡水生态系统》2021,31(11):3228-3247

1. Fish assemblages in dryland rivers have life-history strategies that have evolved in response to environmental conditions and triggers, particularly water temperatures and flow regimes. The regulation of rivers through the construction of dams, weirs and other water diversion structures has altered natural flow regimes and the associated ecological processes of river systems worldwide.
2. Over a 3-year period, using standardized fish sampling and daily otolith ageing, the recruitment of eight freshwater fish species was monitored in response to various abiotic drivers, including hydrology and water temperatures, throughout the Macquarie River, a large regulated river system of the Australian Murray-Darling Basin.
3. A data-driven statistical classification system is provided that groups species into reproductive guilds, based on their recruitment response to hydrology and water temperature, specifically designed for use in environmental flow management.
4. The eight species were grouped into three distinct reproductive guilds that showed similar recruitment responses to the abiotic drivers. Murray-Darling rainbowfish, Murray cod, and eel-tailed catfish were considered as a single guild, characterized by seasonal recruitment during a relatively narrow thermal window under low to moderate stable discharges. The second group included common carp, bony herring, and golden perch, which recruited primarily in association with larger flow events. Un-specked hardyhead and Australian smelt formed a more differentiated guild, recruiting over a broad range of temperatures and discharges. Limitations associated with using a reproductive guild approach to simplify water management are discussed.
5. This study highlighted important relationships among hydrology, water temperatures, and successful recruitment that can, in turn, be used to inform development of adaptive flow management plans and effective use of environmental water for the conservation management of native fish communities. Important considerations in the design of studies that aim to examine relationships between recruitment and abiotic drivers are also discussed.

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初探酵素生物菌肥料对盐碱地水稻生长的影响   总被引：2，自引：0，他引：2  

韩太日  全炳武  安尚哲  马智清  杨世春 《延边大学农学学报》1999,(4)

探讨了大安市盐碱地施酵素生物菌肥料，采用简塑盘大棚育壮秧，浅翻（ 耙） ，洗盐排碱，配施氮、磷、钾、锌肥，综合防治病虫草害等综合栽培措施，水稻公顷产量获得８ ５００ ｋｇ 以上的丰产技术．其产量结构为每平方米穴数为２５ 穴，每平方米穗数６００ 穗，穗总粒数为８７ 粒，结实率为８９ ％ ，千粒重为２７ ．７ ｋｇ ，产量为８ ５００ ｋｇ．  相似文献   

龙眼授粉生物学研究   总被引：19，自引：0，他引：19  

刘星辉  邱栋梁 《中国南方果树》1996,25(1):34-36

龙眼花粉萌发的适温为２０￣３０℃，添加２，４－Ｄ１０×１０＾－６￣２０×１０＾－６、ＧＡ３１５×１０＾－６￣３０×１０＾－６、ＮＡＡ２０×１０＾－６￣４０×１０＾－６，三十烷醇２×１０＾－６￣３×１０＾－６以及硼砂５０×１０＾－６￣２００×１０＾－６、钼酸铵１×１０＾－４￣５×１０＾－６，均可显著提高其花粉育性。龙眼授粉的有效时间为开花后１￣４天，以开花后２天内授粉着果率最高；授粉后５小时已有少量  相似文献