Effect of high temperatures on flowering Arabidopsis thaliana

a 2021

Effect of high temperatures on flowering Arabidopsis thaliana

SÁNCHEZ LÓPEZ, Juan Francisco, Pardha Saradhi Attuluri VENKATA, Tereza DOBISOVÁ a Helene ROBERT BOISIVON

Základní údaje

Originální název

Effect of high temperatures on flowering Arabidopsis thaliana

Název anglicky

Effect of high temperatures on flowering Arabidopsis thaliana

Autoři

SÁNCHEZ LÓPEZ, Juan Francisco, Pardha Saradhi Attuluri VENKATA, Tereza DOBISOVÁ a Helene ROBERT BOISIVON

Vydání

2021

Další údaje

Typ výsledku

Konferenční abstrakt

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Změněno: 17. 8. 2022 14:02, Juan Francisco Sanchez Lopez, Ph.D., MSc

Anotace

V originále

Due to climate change, the average annual temperatures have increased dramatically in the last decades. A further increase is expected In the upcoming years, including an increase in heatwave events. High temperatures affect plant fitness, reducing fertility and the production of fruits and seeds. Plant reproduction is the most sensitive phase to high temperatures because of heat-induced sterility and alteration of female and male gametophytes, reducing the production of seeds (Barnabás et al., 2008). The auxin and cytokinin plant hormones regulate the development of ovules, embryos, and seeds. Heat stress has been shown to alter hormone metabolism (Stavang et al., 2009). We aim to analyze how different high-temperature scenarios affect flowering in Arabidopsis thaliana, focusing on the production of seeds and alteration of hormonal homeostasis. Our results show that high temperatures negatively affect flowering, altering the production of flowers and reducing flowering time. Pollination and fertilization of ovules are affected by high temperatures resulting in a lower production of seeds and shorter fruit size. High temperatures accelerate embryo development, and, in many cases, embryos display developmental defects, similar to what is observed in various auxin mutants. The morphology and size of seeds are different when seeds are produced under high-temperature conditions compared to milder warm temperatures, affecting germination and seedling phenotype. Barnabás, B., Jäger, K. & Fehér, A. 2008. The effect of drought and heat stress on reproductive processes in cereals. Plant Cell and Environment, 31, 11-38. Stavang, J.A., et al. 2009. Hormonal regulation of temperature-induced growth in Arabidopsis. The Plant Journal 60, 589-601.

Citovat

SÁNCHEZ LÓPEZ, Juan Francisco, Pardha Saradhi Attuluri VENKATA, Tereza DOBISOVÁ a Helene ROBERT BOISIVON. Effect of high temperatures on flowering Arabidopsis thaliana. 2021.

@proceedings{2211852,
   author = {Sánchez López, Juan Francisco and Venkata, Pardha Saradhi Attuluri and Dobisová, Tereza and Robert Boisivon, Helene},
   title = {Effect of high temperatures on flowering Arabidopsis thaliana},
   url = {http://icar2020.arabidopsisresearch.org/},
   year = {2021}
}

TY  - CONF
ID  - 2211852
AU  - Sánchez López, Juan Francisco - Venkata, Pardha Saradhi Attuluri - Dobisová, Tereza - Robert Boisivon, Helene
PY  - 2021
TI  - Effect of high temperatures on flowering Arabidopsis thaliana
UR  - http://icar2020.arabidopsisresearch.org/
N2  - Due to climate change, the average annual temperatures have increased dramatically in the last decades. A further increase is expected In the upcoming years, including an increase in heatwave events. High temperatures affect plant fitness, reducing fertility and the production of fruits and seeds. Plant reproduction is the most sensitive phase to high temperatures because of heat-induced sterility and alteration of female and male gametophytes, reducing the production of seeds (Barnabás et al., 2008). The auxin and cytokinin plant hormones regulate the development of ovules, embryos, and seeds. Heat stress has been shown to alter hormone metabolism (Stavang et al., 2009). We aim to analyze how different high-temperature scenarios affect flowering in Arabidopsis thaliana, focusing on the production of seeds and alteration of hormonal homeostasis. Our results show that high temperatures negatively affect flowering, altering the production of flowers and reducing flowering time. Pollination and fertilization of ovules are affected by high temperatures resulting in a lower production of seeds and shorter fruit size. High temperatures accelerate embryo development, and, in many cases, embryos display developmental defects, similar to what is observed in various auxin mutants. The morphology and size of seeds are different when seeds are produced under high-temperature conditions compared to milder warm temperatures, affecting germination and seedling phenotype. Barnabás, B., Jäger, K. & Fehér, A. 2008. The effect of drought and heat stress on reproductive processes in cereals. Plant Cell and Environment, 31, 11-38. Stavang, J.A., et al. 2009. Hormonal regulation of temperature-induced growth in Arabidopsis. The Plant Journal 60, 589-601.
ER  -

SÁNCHEZ LÓPEZ, Juan Francisco, Pardha Saradhi Attuluri VENKATA, Tereza DOBISOVÁ a Helene ROBERT BOISIVON. \textit{Effect of high temperatures on flowering Arabidopsis thaliana}. 2021.

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