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    Cloning and Function Identification of a Phytoene Desaturase Gene from Eucommia ulmoides

    Jiali Wang1, Xiangmei Chen1, Xiaozhen Huang1, Yichen Zhao1,*, Degang Zhao1,2,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.5, pp. 1377-1389, 2023, DOI:10.32604/phyton.2023.026830

    Abstract The phytoene desaturase (PDS) encodes a crucial enzyme in the carotenoid biosynthesis pathway. Silencing or inhibiting PDS expression leads to the appearance of mottled, chlorosis, or albino leaves. In this study, the CDS sequence of EuPDS (Eucommia ulmoides Phytoene Desaturase) was first cloned and then PDS was silenced in Nicotiana benthamiana. Result showed the expression level of EuPDS in leaves was higher than that in the roots and stems. In N. benthamiana leaves, which were treated by Agrobacterium for 24 h, photo-bleaching was shown on the fresh leaves one week after injection and the transcript level of PDS was down-regulated during the More >

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