| Literature DB >> 25482801 |
Yutaro Hori1, Ken-Ichi Kurotani, Yosuke Toda, Tsukaho Hattori, Shin Takeda.
Abstract
In a determinate meristem, such as a floral meristem, a genetically determined number of organs are produced before the meristem is terminated. In rice, iterative formation of organs during flower development with defects in meristem determinacy, classically called 'proliferation', is caused by several mutations and observed in dependence on environmental conditions. Here we report that overexpression of several JAZ proteins, key factors in jasmonate signaling, with mutations in the Jas domains causes an increase in the numbers of organs in florets, aberrant patterns of organ formation and repetitious organ production in spikelets. Our results imply that JAZ factors modulate mechanisms that regulate meristem functions during spikelet development.Entities:
Keywords: JA, jasmonate; JAZ, Jasmonate zim domain; LSH1, Leafy hull sterile1; MJA, methyl jasmonate; RSS3, Rice salt sensitive 3; RT-PCR, reverse transcription-PCR; SAM, shoot apical meristem; bHLH, basic helix–loop–helix; environmental stress; extra glume; flower development; jasmonate; mJAZ, mutated JAZ; meristem determinacy; meristem identity; qRT-PCR, quantitative real-time RT-PCR; spikelet
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Year: 2014 PMID： 25482801 PMCID： PMC4623050 DOI： 10.4161/15592316.2014.970414
Source DB: PubMed Journal: Plant Signal Behav ISSN： 1559-2316