Transgenic rice (Oryza sativa) endosperm expressing daffodil (Narcissus pseudonarcissus) phytoene synthase accumulates phytoene, a key intermediate of provitamin A biosynthesis

Abstract

Rice (Oryza sativa L.), the major food staple for more than two billion people, contains neither β-carotene (provitamin A) nor C40 carotenoid precursors thereof in its endosperm. To improve the nutri...