Cross-talk between Phosphate Starvation and Other Environmental Stress Signaling Pathways in Plants.
Cross-talk between Phosphate Starvation and Other Environmental Stress Signaling Pathways in Plants.
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DOI：
10.14348/molcells.2017.0192
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发表时间：
2017-10
影响因子：
3.8
通讯作者：
Kim MC
中科院分区：
文献类型：
--
作者：
Baek D;Chun HJ;Yun DJ;Kim MC
维持无机磷(PI)的动态平衡对植物的生长和产量至关重要。植物已经进化出了在转录、转录后和翻译后水平上应对PI饥饿的策略，这使得其可用性最大化。许多转录因子、miRNAs和转运体参与PI饥饿信号通路，它们的活性受糖和植物激素信号的调节。环境胁迫显著影响植物对养分的吸收和利用，但它们对磷饥饿反应的影响尚不清楚。最近，我们报道了PI饥饿信号受盐、脱落酸和干旱等非生物胁迫的影响。在这篇综述中，我们鉴定了转录因子，如MYB、WRKY和锌指转录因子，这些转录因子在PI饥饿和其他环境胁迫信号中具有功能。在对PI饥饿反应基因启动子区域的电子分析中，包括磷酸盐转运体、microRNAs和磷酸盐饥饿诱导基因，表明它们的表达可能受到其他环境胁迫的调节，如激素、干旱、寒冷、高温和病原体以及PI饥饿。因此，我们提出了PI饥饿信号与其他环境胁迫信号通路之间存在相互作用的可能性。
The maintenance of inorganic phosphate (Pi) homeostasis is essential for plant growth and yield. Plants have evolved strategies to cope with Pi starvation at the transcriptional, post-transcriptional, and post-translational levels, which maximizes its availability. Many transcription factors, miRNAs, and transporters participate in the Pi starvation signaling pathway where their activities are modulated by sugar and phytohormone signaling. Environmental stresses significantly affect the uptake and utilization of nutrients by plants, but their effects on the Pi starvation response remain unclear. Recently, we reported that Pi starvation signaling is affected by abiotic stresses such as salt, abscisic acid, and drought. In this review, we identified transcription factors, such as MYB, WRKY, and zinc finger transcription factors with functions in Pi starvation and other environmental stress signaling. In silico analysis of the promoter regions of Pi starvation-responsive genes, including phosphate transporters, microRNAs, and phosphate starvation–induced genes, suggest that their expression may be regulated by other environmental stresses, such as hormones, drought, cold, heat, and pathogens as well as by Pi starvation. Thus, we suggest the possibility of cross-talk between Pi starvation signaling and other environmental stress signaling pathways.