排序方式: 共有84条查询结果,搜索用时 140 毫秒
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2006年9月10—14日,“第七届国际侏罗纪大会”在波兰克拉科夫市成功举办。来自英国、法国、德国、美国、加拿大、意大利、西班牙、瑞士、捷克、波兰、匈牙利、葡萄牙、俄罗斯、印度、日本、中国、卡塔尔、伊朗、突尼斯、斯洛文尼亚、沙特阿拉伯等近35个国家的200余位代表参加了这次盛会,其中包括国际地层委员会和侏罗系分会主席、副主席、秘书长、选举委员、通讯委员,国际地球科学计划(IGCP)项目负责人和有关国际工作组负责人等。本次国际会议由国际地层委员会侏罗系分会和波兰环境科学部共同发起主办,波兰华沙大学、波兰地质研究院、克拉… 相似文献
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阿拉伯半乳糖蛋白(AGPs)是广泛分布于植物体内的一类富含羟脯氨酸糖蛋白的总称,前人研究结果表明,该类蛋白参与了高等植物生长发育的诸多生物学过程.本文对高等植物AGPs基因家族的分类、AGPs糖基化的氨基酸密码和AGPs鉴定的方法进行了系统的阐述,并对在生殖发育、营养器官发生、植物与环境间的互作等方面AGPs基因的功能研究现状进行了概述,对AGPs研究的前景进行了探讨,希望为今后的相关研究带来启迪. 相似文献
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以阿拉伯婆婆纳为实验材料对初中生物学"探索水分在茎内的运输途径"、"探索蒸腾作用散失水分"、"观察叶片的结构"和"探索植物的无性繁殖的应用——扦插"等实验进行改进,提高课堂教学效果。 相似文献
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Yanfeng Wu Wenliang Xu Gengqing Huang Siying Gong Juan Li Yongfang Qin Xuebao Li 《Acta biochimica et biophysica Sinica》2009,(6):495-503
Arabinogalactan proteins (AGPs) are a large family of highly glycosylated of hydroxyproline-rich glycoproteins that play important roles in plant growth, development, and signal transduction. A cDNA encoding a putative classical AGP named GhH6L was isolated from cotton fiber cDNA libraries, and the deduced protein contains 17 copies of repetitive motif of X-Y-proline-proline-proline (where X is serine or alanine and Y is threonine or serine). Northern blotting analysis and quantitative RT-PCR results showed that it was preferentially expressed in 10 days post-anthesis (dpa) fibers and was also developmentally regulated. A promoter fragment was isolated from cotton (Gossypium hirsutum) by genome walking PCR. Expression of β-glucuronidase (GUS) gene under the GhH6L promoter was examined in the transgenic Arabidopsis plants; only petiole and pedicel were stained, no staining was detected in other tissues. Subcellular localization indicated that GhH6L was localized to the plasma membrane and in the cytoplasm. These data further our understanding of GhH6L as well as shed light on functional insight to GhH6L in cotton. 相似文献
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