Journal ArticleDOI
Phenylalanine ammonia-lyase activity and phenolic compounds accumulation in nitrogen-deficient Matricaria chamomilla leaf rosettes
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TLDR
It is observed that the mechanism of nitrogen deficiency tolerance due to enhanced PAL activity is temporally limited, and this is an important biochemical factor contributing to the observed increase of phenolic compounds accumulation by producing nitrogen-free skeletons of t -cinnamate for subsequent pathways of phenylpropanoid metabolism.About:
This article is published in Plant Science.The article was published on 2007-02-01. It has received 162 citations till now. The article focuses on the topics: Phenolic acid & Phenylalanine ammonia-lyase activity.read more
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Journal ArticleDOI
Chamomile (Matricaria chamomilla L.): An overview.
TL;DR: This article briefly reviews the medicinal uses of chamomile along with botany and cultivation techniques and particular emphasis is given to the biochemistry, biotechnology, market demand, and trade of the plant.
Journal ArticleDOI
Carbon Fluxes between Primary Metabolism and Phenolic Pathway in Plant Tissues under Stress
TL;DR: Available results suggest that environmental stresses and stress-induced phenolics could be linked by a transduction pathway that involves: (i) the proline redox cycle; (ii) the stimulated oxidative pentose phosphate pathway; and, in turn, the reduced growth of plant tissues.
Journal ArticleDOI
Dynamics of phenolic acids and lignin accumulation in metal-treated Matricaria chamomilla roots
Jozef Kováčik,Bořivoj Klejdus +1 more
TL;DR: Different forms of phenolic metabolites play an important role in chamomile tolerance to metal excess and participate in active antioxidative protection.
Journal ArticleDOI
Comparison of cadmium and copper effect on phenolic metabolism, mineral nutrients and stress-related parameters in Matricaria chamomilla plants
TL;DR: In this paper, the effect of chamomile exposure to 60 μM and 120 μM for 7 days has been studied and the results showed that the above-ground biomass was ca. 10-fold lower compared to Cd and amount of Cd in the methanol-soluble fraction was lower than in the water soluble fraction.
Journal ArticleDOI
Detection, isolation and characterization of a root-exuded compound, methyl 3-(4-hydroxyphenyl) propionate, responsible for biological nitrification inhibition by sorghum (Sorghum bicolor).
Hossain A. K. M. Zakir,Guntur Venkata Subbarao,Stuart J. Pearse,Subramaniam Gopalakrishnan,Osamu Ito,Takayuki Ishikawa,Naoyoshi Kawano,Kazuhiko Nakahara,Tadashi Yoshihashi,Hiroshi Ono,Mitsuru Yoshida +10 more
TL;DR: Methyl 3-(4-hydroxyphenyl) propionate is the first compound purified from the root exudates of any species; this is an important step towards better understanding BNI in sorghum.
References
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Journal ArticleDOI
Structure-antioxidant activity relationships of flavonoids and phenolic acids
TL;DR: The factors underlying the influence of the different classes of polyphenols in enhancing their resistance to oxidation are discussed and support the contention that the partition coefficients of the flavonoids as well as their rates of reaction with the relevant radicals define the antioxidant activities in the lipophilic phase.
Journal ArticleDOI
Oxidative mechanisms in the toxicity of metal ions
Sidney J. Stohs,Debasis Bagchi +1 more
TL;DR: Some mechanisms associated with the toxicities of metal ions are very similar to the effects produced by many organic xenobiotics, related to differences in solubilities, absorbability, transport, chemical reactions, and the complexes that are formed within the body.
Book ChapterDOI
Determination of aldehydic lipid peroxidation products: malonaldehyde and 4-hydroxynonenal
TL;DR: This chapter discusses the methods used for the qualitative and quantitative determination of aldehydes in biological systems and focuses on 4-hydroxynonenal and malondialdehyde, which are in many instances the most abundant individual aldehyde resulting from lipid peroxidation.
Journal ArticleDOI
Genome-Wide Reprogramming of Primary and Secondary Metabolism, Protein Synthesis, Cellular Growth Processes, and the Regulatory Infrastructure of Arabidopsis in Response to Nitrogen
Wolf-Rüdiger Scheible,Rosa Morcuende,Tomasz Czechowski,Christina Fritz,Daniel Osuna,Natalia Palacios-Rojas,Dana Schindelasch,Oliver Thimm,Michael K. Udvardi,Mark Stitt +9 more
TL;DR: Transcriptome analysis revealed rapid responses in the expression of many genes potentially involved in regulation, including genes for trehalose metabolism and hormone metabolism, protein kinases and phosphatases, receptor kinases, and transcription factors.
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A protein competition model of phenolic allocation
Clive G. Jones,Susan E. Hartley +1 more
TL;DR: It is argued that, for phenylalanine-derived phenolics, the mechanistically distinctive PCM complements the Growth Differentiation and Resource Availability Hypotheses, and is a viable, testable alternative to the Carbon Nutrient Balance Hypothesis.