Phytotoxicity of umbelliferone and its analogs: Structure–activity relationships and action mechanisms

Pan, Le; Li, Xiuzhuang; Yan, Zhiqiang; Guo, Hongru; Qin, Bo

doi:10.1016/j.plaphy.2015.10.020

Cited by 56 publications

(38 citation statements)

References 27 publications

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“…The pattern of stimulation at different concentrations was in order 5>4>6 while the inhibition effect was much pronounced by 4 and 5 compared to the compound 6. Similar results were observed by Pan et al (2015) who revealed that the 7-hydroxycoumarin (compound 5) had significant inhibition on seedling growth of purslane and lettuce, more than 4-hydroxycoumarin (compound 6). This phytotoxic effect could be explained by the …”

Section: Resultssupporting

confidence: 87%

“…In fact, the C7 hydroxyl groups in 7-hydroxycoumarin (compound 5) was important for increasing the activity of coumarin (Pan et al, 2015). According to Pergo et al (2008), the coumarin is a species-specific and concentration-dependent, with a stimulatory and inhibitory effects at low and high concentrations, respectively (Abenavoli et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

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Herbicidal potential of phenolic and cyanogenic glycoside compounds isolated from Mediterranean plants

Ladhari¹,

Romanucci

Marco

et al. 2018

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This study was conducted to test five phenolic and cyanogenic glycoside compounds for growth regulating activity on the germination and seedling growth of Portulaca oleracea L., Amaranthus retroflexus L., and Lactuca sativa L. at different concentrations. Overall, the tested compounds revealed growth-regulating activity in species-specific and concentration dependent manner. The most powerful effects were much pronounced on seedling growth rather than on germination. In fact, the compounds 1 (amygdalin) and 2 (salicylic acid) were the most phytotoxic on root growth of P. oleracea, and they caused, respectively, an inhibition of 55% and 85% at 10 -6 M and 10 -4 M. On the other hand, the lettuce seedling growth was more sensitive than weeds growth to the compounds 4 (3,4,5-trihydroxybenzoic acid) and 5 (7-hydroxycoumarin), which exhibited a moderate inhibition at the highest concentration. This selectivity and specificity of these active allelopathic compounds could be very useful for the development of new application of natural substances to control the aggressive weeds. Thus, our findings suggest that the integration of these compounds may maintain irrigation system and reduce the massive use of agrochemicals in agro-ecosystems.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Herbicidal potential of phenolic and cyanogenic glycoside compounds isolated from Mediterranean plants

Ladhari¹,

Romanucci

Marco

et al. 2018

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“…ROS production was assayed according to the procedure of Pan et al (2015) with modifications. 2', 7'-Dicholrofluorescein diacetate (DCFH-DA) was used to determinate reactive oxygen species.…”

Section: Ros Productionmentioning

confidence: 99%

“…Allelopathy is a natural ecological phenomenon which involves the release of plant-produced secondary products (allelochemicals) into the environment by volatilization, root exudation, decomposition and/or leaching (Pan et al, 2015). It influences the growth and development of neighboring plants or itself (Cruz-Ortega et al, 2007;Babula et al, 2009;Rial et al, 2014;Kimura et al, 2015;Pan et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…It influences the growth and development of neighboring plants or itself (Cruz-Ortega et al, 2007;Babula et al, 2009;Rial et al, 2014;Kimura et al, 2015;Pan et al, 2015). Many aspects of plant physiological and biochemical processes, such as the cell cycle, phytohormone metabolism, reactive oxygen species generation and plant photosynthesis could thus be affected (Weir et al 2004;Gniazdowska and Bogatek., 2005;Ding et al,2007;Babula et al, 2009;Ding et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

Ren

Yan

et al. 2017

Emir J Food Agric

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β-cembrenediol((1S,2E,4R,6R,7E,11E)-2,7,11-cembratriene-4,6-diol), shown to be one of the most important allelochemicals of tobacco in our previous studies, effectively inhibited the root and shoot elongation of receptor plants in a concentration-dependent manner. However, its mechanism of action remains unclear. Seedlings of lettuce (Lactuca sativa) were now treated with β-cembrenediol to clarify its mode of action. Results showed that β-cembrenediol significantly inhibited the seeding growth and reduced fresh weight of L. saiva. The compounds effectively arrested cell division and caused cell death. Exposure to β-cembrenediol induced overproduction of reactive oxygen species. Moreover, increased levels of malondialdehyde, proline and hydrogen peroxide, and decreased in chlorophyll content indicated lipid peroxidation and induction of oxidative stress. These results suggested that β-cembrenediol caused oxidative damage through enhanced generation of ROS, as indicated by increased lipid peroxidation, disruption of membrane integrity and impacted mitosis, ultimately resulted in growth inhibition of the receptor plant.

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Don’t judge toxic weeds on whether they are native but on their ecological effects

Zhang

Sun

Liu

et al. 2020

Ecology and Evolution

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The sharp rise in anthropogenic activities and climate change has caused the extensive degradation of grasslands worldwide, jeopardizing ecosystem function, and threatening human well‐being. Toxic weeds have been constantly spreading in recent decades; indeed, their occurrence is considered to provide an early sign of land degeneration. Policymakers and scientific researchers often focus on the negative effects of toxic weeds, such as how they inhibit forage growth, kill livestock, and cause economic losses. However, toxic weeds can have several potentially positive ecological impacts on grasslands, such as promoting soil and water conservation, improving nutrient cycling and biodiversity conservation, and protecting pastures from excessive damage by livestock. We reviewed the literature to detail the adaptive mechanisms underlying toxic weeds and to provide new insight into their roles in degraded grassland ecosystems. The findings highlight that the establishment of toxic weeds may provide a self‐protective strategy of degenerated pastures that do not require special interventions. Consequently, policymakers, managers, and other personnel responsible for managing grasslands need to take appropriate actions to assess the long‐term trade‐offs between the development of animal husbandry and the maintenance of ecological services provided by grasslands.

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Phytotoxicity of umbelliferone and its analogs: Structure–activity relationships and action mechanisms

Cited by 56 publications

References 27 publications

Herbicidal potential of phenolic and cyanogenic glycoside compounds isolated from Mediterranean plants

Herbicidal potential of phenolic and cyanogenic glycoside compounds isolated from Mediterranean plants

ALLELOPATHIC EFFECT OF Β-Cembrenediol AND ITS MODE OF ACTION: INDUCED OXIDATIVE STRESS IN LETTUCE SEEDLINGS

Don’t judge toxic weeds on whether they are native but on their ecological effects

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