e-journal

Comprehensive profiling and natural variation of flavonoids in rice

---

Flavonoids constitute amajor group of plant phenolic compounds. While extensively studied in Arabidopsis, profiling and naturally occurring variation of these compounds in rice (Oryza sativa), themonocotmodel plant, are less reported. Using a collection of rice germplasm, comprehensive profiling and natural variation of flavonoids were presented in this report. Application of a widely targeted metabolomics method facilitated the simultaneous identifcation and quantification of more than 90 flavonoids using liquid chromatography tandem mass spectrometry (LC‐MS/MS). Comparing flavonoid contents in various tissues during different developmental stages revealed tissue‐specific accumulation of most flavonoids. Further investigation indicated that flavone mono‐C‐glycosides, malonylated flavonoid O‐hexosides, and some flavonoid O‐glycosides accumulated at significantly higher levels in indica than in japonica, while the opposite was observed for aromatic acylated flavone C‐hexosyl‐O‐hexosides. In contrast to the highly differential accumulation between the two subspecies, relatively small variations within subspecies were detected for most flavonoids. Besides, an association analysis between flavonoid accumulation and its biosynthetic gene sequence polymorphisms disclosed that natural variation of flavonoids was probably caused by sequence polymorphisms in the coding region of flavonoid biosynthetic genes. Ourwork paves theway for future dissection of biosynthesis and regulation of flavonoid pathway in rice.

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Integrative Plant Biology

No. Panggil

-

Penerbit

China : Oxford University Press on behalf of the Institute of Botany, Chinese Academy of Sciences and the Bo., 2014

Deskripsi Fisik

J Integr Plant Biol 56: 876 – 886.

Bahasa

English

ISBN/ISSN

doi: 10.1111/jipb.12

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

(2014),56

Subjek

Integrative Plant Biology

Info Detail Spesifik

-

Pernyataan Tanggungjawab

deliza

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar