AUTHOR=Wang Wenjing , Chen Qingbin , Botella José Ramón , Guo Siyi TITLE=Beyond Light: Insights Into the Role of Constitutively Photomorphogenic1 in Plant Hormonal Signaling JOURNAL=Frontiers in Plant Science VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/plant-science/articles/10.3389/fpls.2019.00557 DOI=10.3389/fpls.2019.00557 ISSN=1664-462X ABSTRACT=

Light is an important environmental factor with profound effects in plant growth and development. Constitutively photomorphogenic1 (COP1) is a vital component of the light signaling pathway as a negative regulator of photomorphogenesis. Although the role of COP1 in light signaling has been firmly established for some time, recent studies have proven that COP1 is also a crucial part of multiple plant hormonal regulatory pathways. In this article, we review the available evidence involving COP1 in hormone signaling, its molecular mechanisms, and its contribution to the complicated regulatory network linking light and plant hormone signaling.