Methyl gallate and related polyphenols as auxin protectors

Méndez, J.; Mato, M. C.

doi:10.1016/s0031-9422(96)00486-4

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…The alkyl chain length of gállate could play a key role in biological activifies of alkyl gállate (13,30,31), and alkyl gállate shows a synergisfic effect with antibiofics in prevenfing the growth of antibiotic-resistant bacteria (8,30,31). Moreover, MG and other gallic acid derivafives have been recognized as plant growth regulators and roofing promoters (26,27). Although we observed that the leaf extract of T. sylvestre could promote tomato growth (34), it is still unclear what role MG played.…”

Section: Discussionmentioning

confidence: 92%

Isolation of Methyl Gallate from Toxicodendron sylvestre and Its Effect on Tomato Bacterial Wilt

Yuan

Qin

et al. 2012

Plant Disease

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Yuan, G.-Q., Li, Q.-Q., Qin, I., Ye, Y.-E, and Lin, W. 2012. Isolation of methyl gállate from Toxicodendron sylvestre and its effect on tomato bacterial wilt. Plant Dis. 96:1143-1147.We determined that the methanol extract of Toxicodendron sylvestre could significantly inhibit Ralstonia solanacearum in vitro and in planta. One compound responsible for the antibacterial activity was isolated from the ethyl ether extract and identified as methyl gállate (MG) based on its 'H and '^C nuclear magnetic resonance data as well as mass spectroscopy. MG displayed broad-spectrum activity against plant-pathogenic bacteria, and strong inhibitory effects on the growth of plant-pathogenic oomycetes. The half inhibition concentration of MG on R. solanacearum was 8.3 mg/liter, which was tested by the agar dilution method. Disease control trials in planta showed that both natural and synthetic MG could effectively reduce the incidence of tomato bacterial wilt, and there was no significant difference between them in control efñcacy. This is the first report on the use of MG for the control of a plant bacterial disease. Because of its broad-spectrum antimicrobial activity and significant control efficacy on tomato bacterial wilt in planta, MG shows potential to be used as a bactéricide to control plant bacterial wilt.

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Section: Discussionmentioning

confidence: 92%

Isolation of Methyl Gallate from Toxicodendron sylvestre and Its Effect on Tomato Bacterial Wilt

Yuan

Qin

et al. 2012

Plant Disease

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“…Polyphenols are believed to enhance rooting by protecting auxin against oxidation or by modulating its transport, in the case of flavonoids ([ 59 ], and references therein). Methyl gallate, more abundant in juvenile than in adult cuttings of hybrid chestnut, was found to exert a significant protective role on IAA against oxidation [ 60 ]. Phenolic content in juvenile-like and mature shoots of the same genotype was analyzed in order to identify positive or negative relationships of specific compounds with the AR process [ 61 ].…”

Section: Biochemical Profiles During Armentioning

confidence: 99%

Recent Advances in Adventitious Root Formation in Chestnut

Vielba

Vidal

José

et al. 2020

Plants

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The genus Castanea includes several tree species that are relevant because of their geographical extension and their multipurpose character, that includes nut and timber production. However, commercial exploitation of the trees is hindered by several factors, particularly by their limited regeneration ability. Regardless of recent advances, there exists a serious limitation for the propagation of elite genotypes of chestnut due to decline of rooting ability as the tree ages. In the present review, we summarize the research developed in this genus during the last three decades concerning the formation of adventitious roots (ARs). Focusing on cuttings and in vitro microshoots, we gather the information available on several species, particularly C. sativa, C. dentata and the hybrid C.sativa × C. crenata, and analyze the influence of several factors on the achievements of the applied protocols, including genotype, auxin treatment, light regime and rooting media. We also pay attention to the acclimation phase, as well as compile the information available about biochemical and molecular related aspects. Furthermore, we considerate promising biotechnological approaches that might enable the improvement of the current protocols.

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“…Ortho-diphenols and their derivatives, such as catechol, chlorogenic acid, and ferulic acid, are potent inhibitors of peroxidase [33,34]. Catechin and gallocatechin can also prevent peroxidase-catalyzed auxin oxidation [35]. Somkuwar et al [36] suggested that high levels of phenols in grape rootstock cuttings at planting probably correlate with the formation of root primordia and elongation of the roots.…”

Section: Discussionmentioning

confidence: 99%

Indole-3-Acetic Acid, Polyamines, and Phenols in Hardwood Cuttings of Recalcitrant-to-Root Wild Grapes Native to East Asia:Vitis davidiiandVitis kiusiana

2013

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Levels of indole-3-acetic acid (IAA), free, conjugated, and bound polyamines (PAs), and phenols were estimated in the basal portion of hardwood cuttings ofVitis davidiiandV. kiusianain relation to rooting and compared withVitis labruscanaBailey cv. Campbell Early. A high rate of root formation was observed in ‘Campbell Early’ cuttings 60 days after planting. However, none of theV. davidiiandV. kiusianacuttings formed roots. An increase in IAA contents was observed in ‘Campbell Early’ cuttings, but not inV. davidiiandV. kiusiana, 60 days after planting. The content of free, conjugated, and bound PAs was either constant or decreased in ‘Campbell Early’ cuttings during planting and was especially decreased in conjugated putrescine and spermidine. An increase in free and conjugated putrescine was observed after planting inV. kiusianacuttings. In the cuttings ofV. davidii, only bound spermine increased after planting. The content of total phenols, orthodiphenols, total catechins, and gallocatechin derivatives decreased after planting in ‘Campbell Early’ cuttings. Orthodiphenols and total catechin contents increased in the cuttings ofV. kiusiana, and gallocatechin derivatives increased inV. davidii.The relationships between these endogenous factors and the recalcitrant-to-root features ofV. davidiiandV. kiusianacuttings are discussed.

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Methyl gallate and related polyphenols as auxin protectors

Cited by 12 publications

References 3 publications

Isolation of Methyl Gallate from Toxicodendron sylvestre and Its Effect on Tomato Bacterial Wilt

Isolation of Methyl Gallate from Toxicodendron sylvestre and Its Effect on Tomato Bacterial Wilt

Recent Advances in Adventitious Root Formation in Chestnut

Indole-3-Acetic Acid, Polyamines, and Phenols in Hardwood Cuttings of Recalcitrant-to-Root Wild Grapes Native to East Asia:Vitis davidiiandVitis kiusiana

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