Low-temperature resistance of higher plants is significantly enhanced by a nonspecific cyanobacterial desaturase.

Abstract:

:A broad-specificity delta 9 desaturase gene was cloned from the cyanobacterium Anacystis nidulans. The enzyme introduces a cis-double bond at the delta 9 position of both 16 and 18 carbon saturated fatty acids linked to many kinds of membrane lipids. The gene was stably introduced into tobacco plants under transcriptional control of the cauliflower mosaic virus 35S promoter, and the enzyme was targeted into plastids by the transit peptide of the pea RuBisCO small subunit. The transgenic plants had a highly reduced level of saturated fatty acid content in most membrane lipids and exhibited a significant increase in chilling resistance.

journal_name

Nat Biotechnol

journal_title

Nature biotechnology

authors

Ishizaki-Nishizawa O,Fujii T,Azuma M,Sekiguchi K,Murata N,Ohtani T,Toguri T

doi

10.1038/nbt0896-1003

subject

Has Abstract

pub_date

1996-08-01 00:00:00

pages

1003-6

issue

8

eissn

1087-0156

issn

1546-1696

journal_volume

14

pub_type

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