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A novel membrane-bound E3 ubiquitin ligase enhances the thermal resistance in plants

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High temperature stress disturbs cellular homoeostasis and results in a severe retardation in crop
growth and development. Thus, it is important to reveal the mechanism of plants coping with
heat stress. In this study, a novel gene that we identified from Brassica napus, referred to as
BnTR1, was found to play a key role in heat stress response in planta. BnTR1 is a membranebound
RINGv (C4HC3) protein that displays E3 ligase activity in vitro. We demonstrated that
modest expression of BnTR1 is sufficient to minimize adverse environmental influence and
confers thermal resistance on development without any detrimental effects in B. napus and
Oryza sativa. Our investigation into the action mechanism indicates that BnTR1 is likely to be
involved in mediating Ca2+ dynamics by regulating the activity of calcium channels, which further
alters the transcripts of heat shock factors and heat shock proteins contributing to plant
thermotolerance. Hence, our study identified BnTR1 as a novel key factor underlying a conserved
mechanism conferring thermal resistance in plants.

Keywords: BnTR1, thermal resistance, heat shock proteins, Brassica napus,Oryza sativa.

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Informasi Detail

Judul Seri

Plant Biotechnology Journal

No. Panggil

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Penerbit

New York : Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd., 2014

Deskripsi Fisik

Plant Biotechnology Journal (2014) 12, pp. 93–104

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

PERTANIAN.

Info Detail Spesifik

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Pernyataan Tanggungjawab

Agus

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