利用文献计量学及文献可视化软件CiteSpace对国内外植物氮素代谢的研究现状、研究热点和发展趋势进行总结与分析,便于相关研究者了解本领域的研究现状。以2013—2022年Web of Science数据库(WoS)和中国知网数据库(CNKI)中植物氮素代谢...利用文献计量学及文献可视化软件CiteSpace对国内外植物氮素代谢的研究现状、研究热点和发展趋势进行总结与分析,便于相关研究者了解本领域的研究现状。以2013—2022年Web of Science数据库(WoS)和中国知网数据库(CNKI)中植物氮素代谢研究相关论文为文献来源,对发文量、主要研究力量、文献共被引、关键词进行分析。研究表明,发文量整体呈现逐渐增长的趋势,中国、美国、西班牙、德国和巴西等国家在植物氮素代谢领域的影响力较大,国内外机构发文量较多的是农林类高校及科研单位。氮的吸收利用、氮利用效率、盐胁迫、铵信号的介导和氮代谢相关酶的研究构成了植物氮素代谢的重要基础。近10年国际上植物氮素代谢研究的热点为植物耐受性、氮利用效率、氨同化、参与氮代谢相关酶和蛋白质的生物合成等;国内研究热点主要集中在不同氮素形态对植物品质和产量的影响、植物的氮素利用效率、碳氮代谢等相关方向,此外耐旱性、乙烯是最新研究前沿。今后植物氮素代谢应进一步围绕氮素利用效率这一目标展开研究,对氮肥施用进行长期动态观测,研究定量标准;关注植物碳-氮代谢协同机制;基于多组学技术开展植物氮素代谢的相关基因研究;整合植物氮素代谢调控网络。展开更多
Agilawood is a costly heartwood medicine obtained from Aquilaria sinensis with active ingredients mainly composed of volatile and semi-volatile substances. However, the formation time of agilawood is quite long and li...Agilawood is a costly heartwood medicine obtained from Aquilaria sinensis with active ingredients mainly composed of volatile and semi-volatile substances. However, the formation time of agilawood is quite long and little is known about its formation mechanism. Two highly active fungi obtained from natural agilawood were inoculated on A. sinensis trees to understand their interaction processes and elucidate the transformation rules of induced chemical compositions within different test periods. The results demonstrated that the fungi could successfully colonize living tissues and cells and activate the host defense system, resulting in agilawood accumulation. With increasing time, the main components of A. sinensis converted into constituents or analogs of agilawood and the host exhibited "self-injury" to prevent fungal intrusion and protect other tissues. The data presented here could provide scientific basis for producing agilawood with the two new fungi in a safe, feasible, and sustainable manner without destroying rare Aquilaria plants.展开更多
文摘利用文献计量学及文献可视化软件CiteSpace对国内外植物氮素代谢的研究现状、研究热点和发展趋势进行总结与分析,便于相关研究者了解本领域的研究现状。以2013—2022年Web of Science数据库(WoS)和中国知网数据库(CNKI)中植物氮素代谢研究相关论文为文献来源,对发文量、主要研究力量、文献共被引、关键词进行分析。研究表明,发文量整体呈现逐渐增长的趋势,中国、美国、西班牙、德国和巴西等国家在植物氮素代谢领域的影响力较大,国内外机构发文量较多的是农林类高校及科研单位。氮的吸收利用、氮利用效率、盐胁迫、铵信号的介导和氮代谢相关酶的研究构成了植物氮素代谢的重要基础。近10年国际上植物氮素代谢研究的热点为植物耐受性、氮利用效率、氨同化、参与氮代谢相关酶和蛋白质的生物合成等;国内研究热点主要集中在不同氮素形态对植物品质和产量的影响、植物的氮素利用效率、碳氮代谢等相关方向,此外耐旱性、乙烯是最新研究前沿。今后植物氮素代谢应进一步围绕氮素利用效率这一目标展开研究,对氮肥施用进行长期动态观测,研究定量标准;关注植物碳-氮代谢协同机制;基于多组学技术开展植物氮素代谢的相关基因研究;整合植物氮素代谢调控网络。
基金supported by the National Natural Science Foundation of China (31170016, 31270383)
文摘Agilawood is a costly heartwood medicine obtained from Aquilaria sinensis with active ingredients mainly composed of volatile and semi-volatile substances. However, the formation time of agilawood is quite long and little is known about its formation mechanism. Two highly active fungi obtained from natural agilawood were inoculated on A. sinensis trees to understand their interaction processes and elucidate the transformation rules of induced chemical compositions within different test periods. The results demonstrated that the fungi could successfully colonize living tissues and cells and activate the host defense system, resulting in agilawood accumulation. With increasing time, the main components of A. sinensis converted into constituents or analogs of agilawood and the host exhibited "self-injury" to prevent fungal intrusion and protect other tissues. The data presented here could provide scientific basis for producing agilawood with the two new fungi in a safe, feasible, and sustainable manner without destroying rare Aquilaria plants.
