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TRANSLOCATION OF CELL PENETRATING PEPTIDES ON MARINE MACROALGAE AND THE IMPACT ON PHOTOSYNTHESIS OF MACROALGAE
Author(s): 
Pages: 1235-1240
Year: Issue:  5
Journal: Oceanologia et Limnologia Sinica

Keyword:  Cell penetrating peptides(CPPs)nona-argininemarine macroalgaephotosynthetic efficiency;
Abstract: Cell penetrating peptides(CPPs) are effective molecular tools for transporting exogenous substances into different cells. Traditional methods of importing exogenous substances into macroalgae are complicated and inefficient. Yet, no study has been taken to apply CPPs on macroalgae. In this study, by using cell-penetrating peptide nona-arginine(R9), we conducted a translocation experiment on three common marine macroalgae Ulva prolifera, Porphyra yezoensis, and Laminaria japonica to determine photosynthetic efficiency of R9-treated thalli on Dual-PAM fluorometer. We found that R9 could pass cell barriers of three macroalgae, and the efficiency of transductions was closely related to the structures of cell walls. It had no significant change in Fv/Fm, ETR(I), and ETR(II) of macroalgae after being treated with R9, demonstrating that R9 had no negative impact on the photosynthesis of macroalgae. This is a new method of importing exogenous substances into macroalgae, and may help in macroalgae breeding, molecular transformation, and exogenous substance intake.
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