Heterologous expression of rice 9-cis-epoxycarotenoid dioxygenase 4 (OsNCED4) in Arabidopsis confers sugar oversensitivity and drought tolerance

San‑Gwang Hwang; Chia‑Yun Lee; Ching‑Shan Tseng

doi:10.1186/s40529-018-0219-9

Heterologous expression of rice 9-cis-epoxycarotenoid dioxygenase 4 (OsNCED4) in Arabidopsis confers sugar oversensitivity and drought tolerance

Journal

Botanical Studies

Journal Volume

59

Pages

2

Date Issued

2018-01

Date

2018-01

Author(s)

San‑Gwang Hwang

Chia‑Yun Lee

Ching‑Shan Tseng

DOI

10.1186/s40529-018-0219-9

URI

https://scholars.tari.gov.tw/handle/123456789/14379

https://as-botanicalstudies.springeropen.com/articles/10.1186/s40529-018-0219-9

Abstract

Background: The 9-cis-epoxycarotenoid dioxygenases OsNCED4 was cloned from rice in conjunction with OsNCED 1-3 and 5, of which 3 has been shown to function in ABA biosynthesis and alteration of leaf morphology. In higher plants, NCEDs have been shown to be key enzymes controlling ABA biosynthesis and belong to a differentially expressed gene family. Aside from OsNCED3, it remains largely unknown if other OsNCED genes are involved in ABA biosynthesis in rice. Thus, transgenic Arabidopsis plants overexpressing OsNCED4 were generated in the 129B08/nced3 mutant background to explore OsNCED4 function in ABA biosynthesis.

Subjects

Abscisic acid

9-cis-epoxycarotenoid dioxygenase

Seed germination

Post-germination growth arrest

Drought tolerance

Publisher

Springer Open

Type

journal article

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