Molecular and Hormonal Aspects of Drought-Triggered Flower Shedding in Yellow Lupine

International Journal of Molecular Sciences
Emilia WilmowiczTomasz Przywieczerski

Abstract

The drought is a crucial environmental factor that determines yielding of many crop species, e.g., Fabaceae, which are a source of valuable proteins for food and feed. Herein, we focused on the events accompanying drought-induced activation of flower abscission zone (AZ)-the structure responsible for flower detachment and, consequently, determining seed production in Lupinus luteus. Therefore, detection of molecular markers regulating this process is an excellent tool in the development of improved drought-resistant cultivars to minimize yield loss. We applied physiological, molecular, biochemical, immunocytochemical, and chromatography methods for a comprehensive examination of changes evoked by drought in the AZ cells. This factor led to significant cellular changes and activated AZ, which consequently increased the flower abortion rate. Simultaneously, drought caused an accumulation of mRNA of genes inflorescence deficient in abscission-like (LlIDL), receptor-like protein kinase HSL (LlHSL), and mitogen-activated protein kinase6 (LlMPK6), encoding succeeding elements of AZ activation pathway. The content of hydrogen peroxide (H2O2), catalase activity, and localization significantly changed which confirmed the appearance of s...Continue Reading

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Citations

Sep 24, 2020·International Journal of Molecular Sciences·Aleksandra Bogumiła FlorkiewiczEmilia Wilmowicz
Nov 9, 2019·International Journal of Molecular Sciences·Justyna T PolitJanusz Maszewski
May 31, 2020·International Journal of Molecular Sciences·Agata KućkoJuan De Dios Alché
Apr 4, 2021·International Journal of Molecular Sciences·Emilia WilmowiczKatarzyna Panek

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Datasets Mentioned

BETA
PRJNA285604
SRX1069734

Methods Mentioned

BETA
PCR

Software Mentioned

ProtComp
Excel
LightCycler
WinLab
SigmaPlot
ProGres CapturePro

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