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2篇 您的检索式:作者名="Axel Tiessen"
    题名 作者 年代 出处 被引量
1Metabolic and Phenotypic Responses of Greenhouse-Grown Maize Hybrids to Experimentally Controlled Drought Stress显示文摘到象干旱一样的不能生活的压力的改编是农业上的重要获得相关庄稼相似玉米。在在干旱是一个很主导的应力因素的气候的地区种的庄稼的提高的干旱公差的开发因此在植物繁殖起一个必要作用。以前的研究证明玉米收益潜力和提高的压力忍耐是联系特点。在这研究,我们为他们在一个温室实验处理干旱应力的能力分析了六个不同玉米混血儿。我们能从从不同机关与新陈代谢的数据在浇得好的条件下面并且在水限制下面测量的 morphophysiological 参数联合数据。这些不同机关拥有了不同代谢物作文,与显示最可观的 metabolome 变化追随者水缺乏的叶片。虽然我们能在干旱应力下面在代谢物层次显示出一般增加,包括在 TCA 周期的氨基酸,糖,糖白酒,和中介变化,这些变化不在以前基于领域试用数据被指定了为干旱容忍或易受影响的玉米混血儿之间是微分的。这里描述的数据与相当不同的生长源于一个温室实验的事实调节与相比这个领域里的可以解释忍耐为什么组织的天赋不能在这研究被证实。然而,我们能加亮象其层次某些生理的特点地相关很好的代谢物一样显示了保存回答到干旱的几代谢物。Sandra Witt Luis Galicia Jan Lisec Jill Cairns Axel Tiessen Jose Luis Araus Natalia Palacios-Rojas Alisdair R. Fernie 2012Molecular Plant2012,5,2:12
2Plant Proteins Are Smaller Because They Are Encoded by Fewer Exons than Animal Proteins显示文摘Protein size is an important biochemical feature since longer proteins can harbor more domains and therefore can display more biological functionalities than shorter proteins. We found remarkable differences in protein length, exon structure, and domain count among different phylogenetic lineages. While eukaryotic proteins have an average size of 472 amino acid residues(aa),average protein sizes in plant genomes are smaller than those of animals and fungi. Proteins unique to plants are ~81 aa shorter than plant proteins conserved among other eukaryotic lineages. The smaller average size of plant proteins could neither be explained by endosymbiosis nor subcellular compartmentation nor exon size, but rather due to exon number. Metazoan proteins are encoded on average by ~10 exons of small size [~176 nucleotides(nt)]. Streptophyta have on average only^5.7 exons of medium size(~230 nt). Multicellular species code for large proteins by increasing the exon number, while most unicellular organisms employ rather larger exons(>400 nt). Among subcellular compartments, membrane proteins are the largest(~520 aa), whereas the smallest proteins correspond to the gene ontology group of ribosome(~240 aa). Plant genes are encoded by half the number of exons and also contain fewer domains than animal proteins on average. Interestingly,endosymbiotic proteins that migrated to the plant nucleus became larger than their cyanobacterial orthologs. We thus conclude that plants have proteins larger than bacteria but smaller than animals or fungi. Compared to the average of eukaryotic species, plants have ~34% more but ~20% smaller proteins. This suggests that photosynthetic organisms are unique and deserve therefore special attention with regard to the evolutionary forces acting on their genomes and proteomes.Obed Ramirez-Sachez Paulino Perez-Rodriguez Luis Delaye Axel Tiessen 2016Genomics, Proteomics & Bioinformatics2016,14,6:0
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