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KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis

Zhen Gao (UGent) , Anna Daneva (UGent) , Yuliya Salanenka (UGent) , Matthias Van Durme (UGent) , Marlies Huysmans (UGent) , Zongcheng Lin (UGent) , Freya De Winter (UGent) , Steffen Vanneste (UGent) , Mansour Karimi (UGent) , Jan Van de Velde (UGent) , et al.
(2018) NATURE PLANTS. 4(6). p.365-+
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Abstract
Flowers have a species-specific functional life span that determines the time window in which pollination, fertilization and seed set can occur. The stigma tissue plays a key role in flower receptivity by intercepting pollen and initiating pollen tube growth toward the ovary. In this article, we show that a developmentally controlled cell death programme terminates the functional life span of stigma cells in Arabidopsis. We identified the leaf senescence regulator ORESARA1 (also known as ANAC092) and the previously uncharacterized KIRA1 (also known as ANAC074) as partially redundant transcription factors that modulate stigma longevity by controlling the expression of programmed cell death-associated genes. KIRA1 expression is sufficient to induce cell death and terminate floral receptivity, whereas lack of both KIRA1 and ORESARA1 substantially increases stigma life span. Surprisingly, the extension of stigma longevity is accompanied by only a moderate extension of flower receptivity, suggesting that additional processes participate in the control of the flower's receptive life span.
Keywords
EFFECTIVE POLLINATION PERIOD, NAC TRANSCRIPTION FACTORS, CHIMERIC, REPRESSORS, REGULATORY NETWORK, PETAL SENESCENCE, LEAF SENESCENCE, TARGET GENES, PLANT, FERTILIZATION, GERMINATION

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Chicago
Gao, Zhen, Anna Daneva, Yuliya Salanenka, Matthias Van Durme, Marlies Huysmans, Zongcheng Lin, Freya De Winter, et al. 2018. “KIRA1 and ORESARA1 Terminate Flower Receptivity by Promoting Cell Death in the Stigma of Arabidopsis.” Nature Plants 4 (6): 365–+.
APA
Gao, Zhen, Daneva, A., Salanenka, Y., Van Durme, M., Huysmans, M., Lin, Z., De Winter, F., et al. (2018). KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis. NATURE PLANTS, 4(6), 365–+.
Vancouver
1.
Gao Z, Daneva A, Salanenka Y, Van Durme M, Huysmans M, Lin Z, et al. KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis. NATURE PLANTS. London: Nature Publishing Group; 2018;4(6):365–+.
MLA
Gao, Zhen, Anna Daneva, Yuliya Salanenka, et al. “KIRA1 and ORESARA1 Terminate Flower Receptivity by Promoting Cell Death in the Stigma of Arabidopsis.” NATURE PLANTS 4.6 (2018): 365–+. Print.
@article{8567860,
  abstract     = {Flowers have a species-specific functional life span that determines the time window in which pollination, fertilization and seed set can occur. The stigma tissue plays a key role in flower receptivity by intercepting pollen and initiating pollen tube growth toward the ovary. In this article, we show that a developmentally controlled cell death programme terminates the functional life span of stigma cells in Arabidopsis. We identified the leaf senescence regulator ORESARA1 (also known as ANAC092) and the previously uncharacterized KIRA1 (also known as ANAC074) as partially redundant transcription factors that modulate stigma longevity by controlling the expression of programmed cell death-associated genes. KIRA1 expression is sufficient to induce cell death and terminate floral receptivity, whereas lack of both KIRA1 and ORESARA1 substantially increases stigma life span. Surprisingly, the extension of stigma longevity is accompanied by only a moderate extension of flower receptivity, suggesting that additional processes participate in the control of the flower's receptive life span.},
  author       = {Gao, Zhen and Daneva, Anna and Salanenka, Yuliya and Van Durme, Matthias and Huysmans, Marlies and Lin, Zongcheng and De Winter, Freya and Vanneste, Steffen and Karimi, Mansour and Van de Velde, Jan and Vandepoele, Klaas and Van de Walle, Davy and Dewettinck, Koen and Lambrecht, Bart and Nowack, Moritz},
  issn         = {2055-026X},
  journal      = {NATURE PLANTS},
  keyword      = {EFFECTIVE POLLINATION PERIOD,NAC TRANSCRIPTION FACTORS,CHIMERIC,REPRESSORS,REGULATORY NETWORK,PETAL SENESCENCE,LEAF SENESCENCE,TARGET GENES,PLANT,FERTILIZATION,GERMINATION},
  language     = {eng},
  number       = {6},
  pages        = {365--+},
  publisher    = {Nature Publishing Group},
  title        = {KIRA1 and ORESARA1 terminate flower receptivity by promoting cell death in the stigma of Arabidopsis},
  url          = {http://dx.doi.org/10.1038/s41477-018-0160-7},
  volume       = {4},
  year         = {2018},
}

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