The role of NAD biosynthesis in plant development and stress responses
The role of NAD biosynthesis in plant development and stress responses
复制标题
DOI：
10.1093/aob/mcp019
复制
发表时间：
2009-04-01
期刊：
影响因子：
4.2
通讯作者：
Uchimiya, Hirofumi
中科院分区：
文献类型：
--
作者：
Hashida, Shin-nosuke;Takahashi, Hideyuki;Uchimiya, Hirofumi
吡啶核苷酸是电子传递所必需的，并在所有生物体的多种代谢过程中作为辅因子。每种核苷酸在新陈代谢中都有特定的作用。例如，NAD/NADP比率被认为是维持植物细胞功能状态的原因。然而，由于参与NAD和NADP合成和降解的酶尚未完全确定，这些辅酶在植物生长和发育中的生理功能在很大程度上是未知的。本植物学简报涵盖了与植物NAD生物合成相关的基因在发育和胁迫相关作用方面的进展。本文重点介绍了NAD和NADP生物合成的调控对植物生理的影响，综述了NAD生物合成在植物生长发育中的重要性和NADP生物合成在植物抗逆性中的重要性。对表达一组NAD生物合成基因的细胞的进一步研究将有助于理解植物细胞维持NAD稳态的调控机制。
Pyridine nucleotides are essential for electron transport and serve as co-factors in multiple metabolic processes in all organisms. Each nucleotide has a particular role in metabolism. For instance, the NAD/NADP ratio is believed to be responsible for sustaining the functional status of plant cells. However, since enzymes involved in the synthesis and degradation of NAD and NADP have not been fully identified, the physiological functions of these co-enzymes in plant growth and development are largely unknown.This Botanical Briefing covers progress in the developmental and stress-related roles of genes associated with NAD biosynthesis in plants. Special attention will be given to assessments of physiological impacts through the modulation of NAD and NADP biosynthesis.The significance of NAD biosynthesis in plant development and NADP biosynthesis in plant stress tolerance is summarized in this Briefing. Further investigation of cells expressing a set of NAD biosynthetic genes would facilitate understanding of regulatory mechanisms by which plant cells maintain NAD homeostasis.