Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel.
Biotechnol Adv. 2010 Jan-Feb;28(1):108-18. doi: 10.1016/j.biotechadv.2009.10.003.
Due to its economic importance, ease of genetic manipulation, cultivation and processing, the tomato plant has been a target for increasing and diversifying content of fruit phytonutrients by transgenic and non-transgenic approaches. The tomato high pigment (hp) mutations exemplify the latter alternative and due to their positive effect on fruit lycopene content, they were introgressed into elite tomato germplasm for cost effective extraction of this important carotenoid. Interestingly, hp mutant fruits are also characterized by higher fruit levels of other functional metabolites, phenotypes caused by mutations in central genes regulating light signal-transduction. This gene identification suggests that modulation of light signaling machinery in plants may be highly effective towards manipulation of fruit phytonutrients but has never been thoroughly reviewed. This review therefore summarizes the progress which has been made on this valuable approach, emphasizing the consequences of transgenic modulation of light signaling components on the functional properties of the tomato fruit.
由于其经济重要性、遗传操作的简便性、培养和加工容易，番茄植物一直是通过转基因和非转基因方法增加和多样化果实植物营养素含量的目标。番茄高色素 (hp) 突变体就是后一种选择的典范，由于它们对果实番茄红素含量有积极影响，因此它们被导入到优良的番茄种质中，以经济有效的方式提取这种重要的类胡萝卜素。有趣的是，hp 突变体果实的其他功能代谢物水平也较高，这些表型是由调节光信号转导的中央基因的突变引起的。该基因的鉴定表明，植物中光信号机制的调节可能对果实植物营养素的操纵非常有效，但从未得到彻底审查。因此，本综述总结了在这一有价值的方法上取得的进展，强调了转基因调节光信号成分对番茄果实功能特性的影响。
