A phytochrome from the fern Adiantum with features of the putative photoreceptor NPH1

Nozue, Kazunari, Kanegae, Takeshi, Imaizumi, Takato, Fukuda, Shunsuke, Okamoto, Haruko, Yeh, Kuo-Chen, Lagarias, J. Clark and Wada, Masamitsu (1998) A phytochrome from the fern Adiantum with features of the putative photoreceptor NPH1. Proceedings of the National Academy of Sciences, 95 (26), 15826-15830. (doi:10.1073/pnas.95.26.15826). (PMID:9861055)

Abstract

In plant photomorphogenesis, it is well accepted that the perception of red/far-red and blue light is mediated by distinct photoreceptor families, i.e., the phytochromes and blue-light photoreceptors, respectively. Here we describe the discovery of a photoreceptor gene from the fern Adiantum that encodes a protein with features of both phytochrome and NPH1, the putative blue-light receptor for second-positive phototropism in seed plants. The fusion of a functional photosensory domain of phytochrome with a nearly full-length NPH1 homolog suggests that this polypeptide could mediate both red/far-red and blue-light responses in Adiantum normally ascribed to distinct photoreceptors.

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