Cover image: Pictured is a wafer-scale, flexible spectrometer array. Chunyu You et al. fabricated miniaturized spectrometers with a resolution of around 2.5 nanometers using complementary metal-oxide-semiconductor (CMOS) methods. Using a self-adapting algorithm, the authors circumvented the need for manual tuning of processing algorithm parameters. According to the authors, the CMOS production process and self-referencing algorithms may help reduce the cost of spectrometers for use in applications such as machine vision, environmental monitoring, and medical diagnostics. See the article by You et al. e2403950121. Image credit: Chunyu You, Ningge Huang, and Yongfeng Mei.
新植物学家：加拿大皇后大学揭示调控拟南芥气孔导度的新机制
calcium-dependent protein kinase CPK28参与了植物对逆境响应过程。本研究发现CPK28可以结合到C7 Raf-like kinases MRK1, RAF26, RAF39. 首先，CPK28可以磷酸化RAF26 and RAF39，而 MRK1, RAF26, and RAF39 本身就是位于内膜上的活性激酶，负调控气孔开放过程。
MRK1, RAF26, and RAF39与mitogen-activated protein kinase kinase kinases (MKKKs)相似，但是蛋白质的磷酸化分析发现MRK1, RAF26, and RAF39并无法磷酸化拟南芥的10个mitogen-activated protein kinase kinases (MKKs)。
小结：本研究揭示了CPK28通过下游三个激酶关闭气孔的机制。
原文：Subfamily C7 Raf-like kinases MRK1, RAF26, and RAF39 regulate immune homeostasis and stomatal opening in Arabidopsis thaliana
