Phototropins and chloroplast activity in plant blue light signaling.
In plants, phototropins 1 (phot1) and 2 (phot2) mediate chloroplast movement to blue light (BL). A recent report showed that phototropins (phot) are required for the expression of chloroplast genes in rice. The light-induced responses of phot1a rice mutants result in H(2)O(2)-mediated damage to chloroplast photosystems, indicating that phot-regulated responses might be associated with the other photoreceptor, such as cryptochrome (cry) BL receptor. This suggests diversification and specialization of photoreceptor signaling in plants.
Goh
Chang-Hyo
CH
Research Institute for Basic Sciences, Jeju National University, Jeju, Korea. changhyogoh@hanmail.net
D002736:Chloroplasts / Q000378:metabolism* / Q000528:radiation effects*; D003116:Color; D008027:Light; D055537:Light Signal Transduction / Q000528:radiation effects*; D056949:Phototropins / Q000378:metabolism*; D010944:Plants / Q000378:metabolism* / Q000528:radiation effects*
D056949:Phototropins