Unraveling the processes of thermoregulation during the seed
development in Brassica napus

a 2025

Unraveling the processes of thermoregulation during the seed development in Brassica napus

ROBERT BOISIVON, Helene

Základní údaje

Originální název

Unraveling the processes of thermoregulation during the seed development in Brassica napus

Autoři

ROBERT BOISIVON, Helene

Vydání

2nd RECROP ANNUAL MEETING, Climate-Proof Crop Reproduction: from lab to farm, Thessaloniki, Greece, 2025

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10611 Plant sciences, botany

Stát vydavatele

Řecko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14740/25:00143760

Organizační jednotka

Středoevropský technologický institut

Klíčová slova anglicky

Arabidopsis; Brassica; temperature affects; seeds; embryo development

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 17. 3. 2026 10:31, Mgr. Eva Dubská

Anotace

V originále

Our research focuses on understanding how plants respond to their environment and how their growth processes are regulated at the tissular, cellular and molecular levels. We are particularly interested in early seed development in the model plant Arabidopsis thaliana and its relative Brassica napus (oilseed rape) and how high temperature affects seed production and quality. We observed that high temperatures above the optimum growth temperature resulted in the production of seeds with ruptured seed coats in Brassica napus cv Topas. This phenotype is associated with accelerated embryo development. However, the relationships between the three events – high temperature, embryo growth pace, and seed coat rupture – remain unclear. To investigate the occurrence of temperature-induced seed coat rupture, we combined detailed phenotyping approaches of oilseed rape seeds with transcriptomics, histology, immunolabelling, hormone and cell wall profiling. Our data suggest that high temperatures accelerate embryo growth, resulting in larger embryos but not larger seeds. Such large embryos exert a putative mechanical pressure on the seed coat cells, for which we observed a reduced cell layer thickness. The seed coat began to mature prematurely with the accumulation of demethylesterified pectin, possibly making the cell wall stiffer, which eventually ruptured. Our data present novel observations on the impact of high temperatures on seed development, tackling issues linked to seed biomechanic features.

Návaznosti

EH22_008/0004581, projekt VaV

Název: Nové poznatky pro plodiny nové generace

Přiložené soubory

Robert_Boisivon_RECROP_Recko_abstract_book.pdf

Program_oral_presentation_Thessaloniki_Final.pdf

Citovat

ROBERT BOISIVON, Helene. Unraveling the processes of thermoregulation during the seed development in Brassica napus. In 2nd RECROP ANNUAL MEETING, Climate-Proof Crop Reproduction: from lab to farm, Thessaloniki, Greece. 2025.

@proceedings{2556442,
   author = {Robert Boisivon, Helene},
   booktitle = {2nd RECROP ANNUAL MEETING, Climate-Proof Crop Reproduction: from lab to farm, Thessaloniki, Greece},
   keywords = {Arabidopsis; Brassica; temperature affects; seeds; embryo development},
   language = {eng},
   title = {Unraveling the processes of thermoregulation during the seed development in Brassica napus},
   url = {https://www.recrop-cost.com/NewsAndActivities/ReadMore/ac36fcec-0dbd-4e93-5f5e-08dd4612bdae},
   year = {2025}
}

TY  - CONF
ID  - 2556442
AU  - Robert Boisivon, Helene
PY  - 2025
TI  - Unraveling the processes of thermoregulation during the seed development in Brassica napus
KW  - Arabidopsis
KW  - Brassica
KW  - temperature affects
KW  - seeds
KW  - embryo development
UR  - https://www.recrop-cost.com/NewsAndActivities/ReadMore/ac36fcec-0dbd-4e93-5f5e-08dd4612bdae
N2  - Our research focuses on understanding how plants respond to their environment and how their growth processes are regulated at the tissular, cellular and molecular levels. We are particularly interested in early seed development in the model plant Arabidopsis thaliana and its relative Brassica napus (oilseed rape) and how high temperature affects seed production and quality. We observed that high temperatures above the optimum growth temperature resulted in the production of seeds with ruptured seed coats in Brassica napus cv Topas. This phenotype is associated with accelerated embryo development. However, the relationships between the three events – high temperature, embryo growth pace, and seed coat rupture – remain unclear. To investigate the occurrence of temperature-induced seed coat rupture, we combined detailed phenotyping approaches of oilseed rape seeds with transcriptomics, histology, immunolabelling, hormone and cell wall profiling. Our data suggest that high temperatures accelerate embryo growth, resulting in larger embryos but not larger seeds. Such large embryos exert a putative mechanical pressure on the seed coat cells, for which we observed a reduced cell layer thickness. The seed coat began to mature prematurely with the accumulation of demethylesterified pectin, possibly making the cell wall stiffer, which eventually ruptured. Our data present novel observations on the impact of high temperatures on seed development, tackling issues linked to seed biomechanic features.
ER  -

ROBERT BOISIVON, Helene. Unraveling the processes of thermoregulation during the seed development in Brassica napus. In \textit{2nd RECROP ANNUAL MEETING, Climate-Proof Crop Reproduction: from lab to farm, Thessaloniki, Greece}. 2025.

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