Long-Term High-Temperature Stress Impacts on Embryo and Seed Development in Brassica napus

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F22%3A00125688" target="_blank" >RIV/00216224:14740/22:00125688 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/22:73617034
Result on the web
<a href="https://www.frontiersin.org/articles/10.3389/fpls.2022.844292/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fpls.2022.844292/full</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fpls.2022.844292" target="_blank" >10.3389/fpls.2022.844292</a>

Result language
angličtina
Original language name
Long-Term High-Temperature Stress Impacts on Embryo and Seed Development in Brassica napus
Original language description
Brassica napus (rapeseed) is the second most important oilseed crop worldwide. Global rise in average ambient temperature and extreme weather severely impact rapeseed seed yield. However, fewer research explained the phenotype changes caused by moderate-to-high temperatures in rapeseed. To investigate these events, we determined the long-term response of three spring cultivars to different temperature regimes (21/18°C, 28/18°C, and 34/18°C) mimicking natural temperature variations. The analysis focused on the plant appearance, seed yield, quality and viability, and embryo development. Our microscopic observations suggest that embryonic development is accelerated and defective in high temperatures. Reduced viable seed yield at warm ambient temperature is due to a reduced fertilization rate, increased abortion rate, defective embryonic development, and pre-harvest sprouting. Reduced auxin levels in young seeds and low ABA and auxin levels in mature seeds may cause embryo pattern defects and reduced seed dormancy, respectively. Glucosinolates and oil composition measurements suggest reduced seed quality. These identified cues help understand seed thermomorphogenesis and pave the way to developing thermoresilient rapeseed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10605 - Developmental biology

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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