Bioactive l-DOPA induced quinoprotein formation to inhibit root growth of cucumber seedlings

Mushtaq, Muhammad; Sunohara, Yukari; Matsumoto, Hiroshi

doi:10.1584/jpestics.d13-005

Cited by 12 publications

(13 citation statements)

References 32 publications

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“…Increases in PPO activity and decreases in lipid peroxidation were observed in cucumber plants exposed to L-DOPA, 36 results also noted by Soares et al 37 in soybean roots. The reduction in lipid peroxidation may be related to the activity of antioxidant enzymes and/or suppression of ROS generation by quinoprotein formation.…”

Section: Effects Of L-dopa In Plantssupporting

confidence: 80%

The role of L-DOPA in plants

Soares

Marchiosi

Siqueira-Soares

et al. 2014

Plant Signaling & Behavior

141

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Section: Effects Of L-dopa In Plantssupporting

confidence: 80%

The role of L-DOPA in plants

Soares

Marchiosi

Siqueira-Soares

et al. 2014

Plant Signaling & Behavior

141

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“…The reduction of root growth by the action of L-DOPA at different concentrations has been described in several plant species [26–28] although some of them were resistant to the allelochemical [13]. Since L-DOPA reduced the growth of maize roots (Table 1), its role as a potent allelochemical has been strengthened.…”

Section: Discussionmentioning

confidence: 99%

Root Growth and Enzymes Related to the Lignification of Maize Seedlings Exposed to the Allelochemical L‐DOPA

Siqueira-Soares

Soares

Parizotto

et al. 2013

The Scientific World Journal

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L-3,4-Dihydroxyphenylalanine (L-DOPA) is a known allelochemical exuded from the roots of velvet bean (Mucuna pruriens L. Fabaceae). In the current work, we analyzed the effects of L-DOPA on the growth, the activities of phenylalanine ammonia-lyase (PAL), tyrosine ammonia-lyase (TAL), and peroxidase (POD), and the contents of phenylalanine, tyrosine, and lignin in maize (Zea mays) roots. Three-day-old seedlings were cultivated in nutrient solution with or without 0.1 to 2.0 mM L-DOPA in a growth chamber (25°C, light/dark photoperiod of 12/12, and photon flux density of 280 μmol m−2 s−1) for 24 h. The results revealed that the growth (length and weight) of the roots, the PAL, TAL, and soluble and cell wall-bound POD activities decreased, while phenylalanine, tyrosine, and lignin contents increased after L-DOPA exposure. Together, these findings showed the susceptibility of maize to L-DOPA. In brief, these results suggest that the inhibition of PAL and TAL can accumulate phenylalanine and tyrosine, which contribute to enhanced lignin deposition in the cell wall followed by a reduction of maize root growth.

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“…In lettuce, L-DOPA (1 mM) increased about 4 times the production of O -2 and H2O2 compared to untreated control. Lipid peroxidation also increased with the addition of L-DOPA (Mushtaq et al, 2013a).…”

Section: L-dopamentioning

confidence: 91%

“…Plant species on which the PPO activity is enhanced favor L-DOPA to be oxidized to melanin and produce high amount of reactive oxygen species (Mushtaq et al, 2013a). In the susceptible species, L-DOPA causes oxidative damage due to the presence of reactive oxygen species (Matsumoto, 2011).…”

Section: L-dopamentioning

confidence: 99%

“…In the susceptible species, L-DOPA causes oxidative damage due to the presence of reactive oxygen species (Matsumoto, 2011). In lettuce, L-DOPA (0.1 and 1 mM) doubled the PPO activity (Mushtaq et al, 2013a). Plants of Cucumis sativus and Glycine max presented inhibition of root growth and increased PPO activity after addition of L-DOPA (Soares et al, 2011;Mushtaq et al, 2013b).…”

Section: L-dopamentioning

confidence: 99%

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Uso potencial de aminoácidos não-proteinogênicos como aleloquímicos

Fipke

Vidal

2015

RBHerbicidas

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-From existing amino acids, twenty are directly involved in the formation of proteins.The others are known as non-proteinogenic amino acids (NPAA). The NPAA have different functions, including anti-herbivory activity, antimicrobial, protection from stress, cell signaling, nitrogen storage, as toxins against invertebrates and vertebrates and as allelochemicals. Plants are able to release these metabolites in the soil, which may influence the growth and development of neighboring plants, both positively and negatively. The objective of this review is to describe the chemical characteristics, the allelopathic potential and selectivity for crops of non-proteinogenic amino acids m-tyrosine, L-DOPA, methionine sulfoximine and azetidine. Keywords: m-tyrosine; L-3,4-dihydroxyphenylalanine; MSO; azetidine-2-carboxylic acid Resumo -Dos aminoácidos existentes, vinte estão envolvidos diretamente na formação de proteínas. Os demais são conhecidos como aminoácidos não-proteinogênicos (AANP). Os AANP possuem diferentes funções, incluindo atividade anti-herbivoria, antimicrobiana, proteção contra o estresse, sinalização celular, armazenamento de nitrogênio, como toxinas contra invertebrados e vertebrados e, também, como aleloquímicos. As plantas são capazes de liberar esses metabólitos no solo, os quais podem influenciar o crescimento e desenvolvimento de plantas vizinhas, tanto positiva como negativamente. O objetivo dessa revisão é descrever as características químicas, o potencial alelopático e a seletividade para culturas dos aminoácidos não-proteinogênicos mtirosina, L-DOPA, metionina sulfoximina e azetidino.

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Bioactive l-DOPA induced quinoprotein formation to inhibit root growth of cucumber seedlings

Cited by 12 publications

References 32 publications

The role of L-DOPA in plants

The role of L-DOPA in plants

Root Growth and Enzymes Related to the Lignification of Maize Seedlings Exposed to the Allelochemical L‐DOPA

Uso potencial de aminoácidos não-proteinogênicos como aleloquímicos

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