Singh Sadhana, Grover Atul, Nasim M
Biotechnology Division, Defence Institute of Bio-Energy Research Haldwani, India.
Front Plant Sci. 2016 Jan 26;7:22. doi: 10.3389/fpls.2016.00022. eCollection 2016.
NAC genes contribute to enhance survivability of plants under conditions of environmental stress and in secondary growth of the plants, thereby building biomass. Thus, genetic transformation of plants using NAC genes provides a possibility to tailor biofuel plants. Over-expression studies have indicated that NAC family genes can provide tolerance to various biotic and abiotic stresses, either by physiological or biochemical changes at the cellular level, or by affecting visible morphological and anatomical changes, for example, by development of lateral roots in a number of plants. Over-expression of these genes also work as triggers for development of secondary cell walls. In our laboratory, we have observed a NAC gene from Lepidium latifolium contributing to both enhanced biomass as well as cold stress tolerance of model plants tobacco. Thus, we have reviewed all the developments of genetic engineering using NAC genes which could enhance the traits required for biofuel plants, either by enhancing the stress tolerance or by enhancing the biomass of the plants.
NAC基因有助于提高植物在环境胁迫条件下的生存能力，并参与植物的次生生长，从而积累生物量。因此，利用NAC基因对植物进行遗传转化为定制生物燃料植物提供了可能性。过表达研究表明，NAC家族基因可以通过细胞水平的生理或生化变化，或通过影响可见的形态和解剖学变化，例如通过许多植物侧根的发育，来提供对各种生物和非生物胁迫的耐受性。这些基因的过表达还可作为次生细胞壁发育的触发因素。在我们实验室，我们观察到宽叶独行菜中的一个NAC基因有助于提高模式植物烟草的生物量以及耐寒性。因此，我们综述了利用NAC基因进行基因工程的所有进展，这些进展可以通过提高植物的胁迫耐受性或增加植物的生物量来增强生物燃料植物所需的性状。
