Overexpression of a petunia zinc-finger gene alters cytokinin metabolism and plant forms
Date
2005
Authors
Nakagawa, Hitoshi
Jiang, Chang-Jie
Sakakibara, Hitoshi
Kojima, Mikiko
Honda, Ichiro
Ajisaka, Hidetoshi
Nishijima, Takaaki
Koshioka, Masaji
Homma, Tamaki
Mander, Lewis
Journal Title
Journal ISSN
Volume Title
Publisher
Blackwell Publishing Ltd
Abstract
Shoot branching and plant height are among the key factors that define the overall architecture of plants. We found that overexpression of a cDNA for a zinc-finger protein of petunia, designated Lateral shoot-Inducing Factor (LIF), in transgenic petunia plants resulted in a dramatic increase in lateral shoots and reduced plant height. LIF overexpression also caused a decrease in the number of cells in the stem, leaf, and flower, accompanied by enlargement of cells. trans-Zeatin was decreased while N6-(Δ2- isopentenyl)adenine was increased in the leaves of LIF-overexpressed petunia. Most of the riboside, ribotide, and glucoside forms were also increased. Expression analysis using a LIF
Description
Keywords
Keywords: Cells; Genes; Growth kinetics; Proteins; Tobacco; Zinc; Dicotyledonous plants; Expression analysis; Lateral shoot-inducing factor (LIF); Overexpression; Petunia plants; Plant height; Plants (botany); cytokinin; vegetable protein; zinc finger protein; amin Arabidopsis; Axillary branching; Cytokinin; Petunia; Tobacco; Transcription factor
Citation
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Source
The Plant Journal
Type
Journal article