ABA says NO to UV-B: a universal response?

TOSSI VANESA ; CASSIA RAÚL; BRUZZONE SANTINA,; ZOCCHI ELENA ; LAMATTINA LORENZO

TRENDS IN PLANT SCIENCE.

ELSEVIER SCIENCE LONDON

Lugar: Londres; Año: 2012 vol. 17 p. 510 - 517

1360-1385

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 Ca2+, 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.