A citrus abscission agent induces anoxia- and senescence-related gene expression in Arabidopsis

The mechanisms of negative effects of 5-chloro-3-methyl-4-nitro-1H-pyrazole (CMNP), a pyrazole-derived plant growth regulator used as a citrus abscission agent, were explored in Arabidopsis by integrating transcriptomic, physiological, and ultrastructural analyses. CMNP promoted starch degradation a...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 58(2007), 10 vom: 15., Seite 2451-62
1. Verfasser: Alferez, Fernando (VerfasserIn)
Weitere Verfasser: Zhong, Guang Yan, Burns, Jacqueline K
Format: Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Arabidopsis Proteins Pyrazoles Sucrose 57-50-1 5-chloro-3-methyl-4-nitro-1H-pyrazole 6814-58-0 Starch 9005-25-8 Oxygen S88TT14065
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245 1 2 |a A citrus abscission agent induces anoxia- and senescence-related gene expression in Arabidopsis 
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520 |a The mechanisms of negative effects of 5-chloro-3-methyl-4-nitro-1H-pyrazole (CMNP), a pyrazole-derived plant growth regulator used as a citrus abscission agent, were explored in Arabidopsis by integrating transcriptomic, physiological, and ultrastructural analyses. CMNP promoted starch degradation and senescence-related symptoms, such as chloroplast membrane disruption, electrolyte leakage, and decreased chlorophyll and protein content. Symptoms of plant decline were evident 12 h after CMNP treatment. Microarray analysis revealed that CMNP influenced genes associated with stress, including those related to anoxia, senescence, and detoxification. Sucrose treatment arrested CMNP-induced plant decline. The results demonstrate that the plant response to CMNP shares common elements with various stresses and senescence at physiological and molecular levels 
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