Instituto de Investigaciones Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina.
Trends Plant Sci. 2012 Sep;17(9):510-7. doi: 10.1016/j.tplants.2012.05.007. Epub 2012 Jun 13.
Abscisic acid (ABA) signaling pathways have been widely characterized in plants, whereas the function of ABA in animals is less well understood. However, recent advances show ABA production by a wide range of lower animals and higher mammals. This enables a new evaluation of ABA signaling pathways in different organisms in response to common environmental stress, such as ultraviolet (UV)-B. In this opinion article, we propose that the induction of common signaling components, such as ABA, nitric oxide (NO) and Ca(2+), in plant and animal cells in response to high doses of UV-B, suggests that the evolution of a general mechanism activated by UV-B is conserved in divergent multicellular organisms challenged by a changing common environment.
脱落酸（ABA）信号通路在植物中已得到广泛研究，而 ABA 在动物中的功能则知之甚少。然而，最近的研究进展表明，ABA 由广泛的低等动物和高等哺乳动物产生。这使得我们能够重新评估不同生物体中 ABA 信号通路对常见环境胁迫（如紫外线-B）的反应。在这篇观点文章中，我们提出，在高剂量的 UV-B 照射下，植物和动物细胞中诱导产生共同的信号成分，如 ABA、一氧化氮（NO）和 Ca(2+)，这表明一种由 UV-B 激活的通用机制的进化在受到不断变化的共同环境挑战的不同多细胞生物中是保守的。
