Brassinolide and BZR1 are up-regulated in a parthenocarpic mutant of prickly pear
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F25%3A00637477" target="_blank" >RIV/61389030:_____/25:00637477 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/25:73634853
Result on the web
<a href="https://doi.org/10.1007/s00299-025-03514-w" target="_blank" >https://doi.org/10.1007/s00299-025-03514-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00299-025-03514-w" target="_blank" >10.1007/s00299-025-03514-w</a>
Alternative languages
Result language
angličtina
Original language name
Brassinolide and BZR1 are up-regulated in a parthenocarpic mutant of prickly pear
Original language description
We explored the complex process of parthenocarpic fruit development in prickly pear Opuntia ficus-indica (Cactaceae) by comparing the fruits of the parthenocarpic Beer Sheva1 (BS1) mutant and revertant non-parthenocarpic fruits. The mutant plants produce flowers with enlarged ovules that develop into degenerated seed-like stony structures. Pollen tubes fail to penetrate the ovule, resulting in the formation of lignified and hard seed coat brown in colour. Some new stems on BS1 plants bear normal revertant flowers containing small and viable fertilized ovules. BS1 thus provides a unique model for elucidating the regulatory mechanisms underlying parthenocarpy in prickly pear. Our working hypothesis was that parthenocarpy is induced by elevated levels of brassinolide in the ovules of BS1. By comparing transcriptomes, we identified 7717 differentially expressed genes between BS1 and the revertant among them brassinosteroid-related genes. Quantification of the brassinosteroids confirmed higher brassinolide levels and up-regulation of the brassinosteroid positive regulator BRASSINAZOLE RESISTANT1 (BZR1) in BS1 ovules compared to revertant ovules displaying normal seed development. Thereby, implicating the involvement of brassinolide in ovule development, fruit phenology, and parthenocarpy. The early flowering and fruit ripening observed in BS1 support our hypothesis that brassinolide promotes parthenocarpic fruit development and ripening.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
<a href="/en/project/EH22_008%2F0004581" target="_blank" >EH22_008/0004581: TowArds Next GENeration Crops (TANGENC)</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Plant Cell Reports
ISSN
0721-7714
e-ISSN
1432-203X
Volume of the periodical
44
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
12
Pages from-to
131
UT code for WoS article
001493449300001
EID of the result in the Scopus database
2-s2.0-105005778557