骁龙晚期伸长下胚轴在激活花的生长和气味散发中起双重作用。
The Snapdragon LATE ELONGATED HYPOCOTYL Plays A Dual Role in Activating Floral Growth and Scent Emission.
机构信息
Genética Molecular, Instituto de Biotecnología Vegetal, Edificio I+D+I, Plaza del Hospital s/n, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain.
Biomedical Informatic and Bioinformatic Platform, Biomedical Research Institute of Murcia, University Clinical Hospital 'Virgen de la Arrixaca', University of Murcia, 30120 Murcia, Spain.
出版信息
Cells. 2019 Aug 17;8(8):920. doi: 10.3390/cells8080920.
The plant circadian clock controls a large number of internal processes, including growth and metabolism. Scent emission displays a circadian pattern in many species such as the snapdragon. Here we show that knocking down in affects growth and scent emission. In order to gain an understanding of the growth kinetics, we took a phenomic approach using in-house artificial vision systems, obtaining time-lapse videos. Wild type flowers showed a higher growth speed than knockdown plants. The maximal growth rate was decreased by 22% in plants with lower expression. Floral volatiles were differentially affected as RNAi plants showed advanced emission of compounds synthesized from cinnamic acid and delayed emission of metabolites of benzoic acid. The monoterpenes myrcene and ocimene were delayed, whereas the sesquiterpene farnesene was advanced. Overall, transgenic lines showed an altered volatile emission pattern and displayed a modified scent profile. Our results show that plays an important role in the quantitative and qualitative control of floral growth and scent emission.
植物生物钟控制着大量的内部过程，包括生长和新陈代谢。许多物种如金鱼草的气味散发都呈现出昼夜节律模式。在这里，我们发现敲低 会影响生长和气味散发。为了了解生长动力学，我们采用了内部人工视觉系统的表型方法，获得了延时视频。野生型花朵的生长速度高于敲低植物。表达较低的植物的最大生长速率降低了 22%。花香挥发物受到不同的影响，因为 RNAi 植物表现出肉桂酸合成化合物的提前排放和苯甲酸代谢物的延迟排放。单萜月桂烯和罗勒烯被延迟，而倍半萜法呢烯则提前。总的来说，转基因品系表现出改变的挥发性排放模式，并显示出修饰的气味特征。我们的结果表明， 在花卉生长和气味散发的定量和定性控制中起着重要作用。
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