Fan Hongmei, Quan Shuxuan, Qi Shengdong, Xu Na, Wang Yong
State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China.
School of Biological Science, Jining Medical University, Rizhao, China.
Front Plant Sci. 2020 Dec 10;11:574246. doi: 10.3389/fpls.2020.574246. eCollection 2020.
Nitrogen (N) is one of the most essential macronutrients for plant growth and development. Nitrate (NO ), the major form of N that plants uptake from the soil, acts as an important signaling molecule in addition to its nutritional function. Over the past decade, significant progress has been made in identifying new components involved in NO regulation and starting to unravel the NO regulatory network. Great reviews have been made recently by scientists on the key regulators in NO signaling, NO effects on plant development, and its crosstalk with phosphorus (P), potassium (K), hormones, and calcium signaling. However, several novel aspects of NO regulation have not been previously reviewed in detail. Here, we mainly focused on the recent advances of post-transcriptional regulation and non-coding RNA (ncRNAs) in NO signaling, and NO regulation on leaf senescence and the circadian clock. It will help us to extend the general picture of NO regulation and provide a basis for further exploration of NO regulatory network.
氮（N）是植物生长发育所必需的最重要的大量元素之一。硝酸盐（NO₃⁻）是植物从土壤中吸收的主要氮素形态，除了其营养功能外，还作为一种重要的信号分子。在过去十年中，在鉴定参与NO₃⁻调控的新成分以及开始揭示NO₃⁻调控网络方面取得了重大进展。最近科学家们对NO₃⁻信号传导中的关键调节因子、NO₃⁻对植物发育的影响及其与磷（P）、钾（K）、激素和钙信号传导的相互作用进行了精彩的综述。然而，NO₃⁻调控的几个新方面以前尚未详细综述。在这里，我们主要关注转录后调控和非编码RNA（ncRNAs）在NO₃⁻信号传导中的最新进展，以及NO₃⁻对叶片衰老和生物钟的调控。这将有助于我们扩展NO₃⁻调控的总体图景，并为进一步探索NO₃⁻调控网络提供基础。
