Phytotoxicity mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings

Yan, Zhiqiang; Wang, Dandan; Cui, Haiyan; DengHong, Zhang; Sun, Yanfa; Jin, Hui; Li, Xiuzhuang; Yang, Xiaoyan; Guo, Hongru; He, Xingxing; Pan, Le; Ren, Xia; Guo, Kai; Qin, Bo

doi:10.1007/s11738-016-2270-z

Cited by 35 publications

(36 citation statements)

References 34 publications

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“…1) is a naturally occurring coumarin widely distributed in the Rutaceae , Apiaceae ( Umbelliferae ) and Asteraceae families 15–17 . Inhibitory effects of umbelliferone to plants such as Festuca rubra , Medicago sativa and Lactuca sativa have been reported 16,18 . Antifungal and antibacterial properties for umbelliferone and its derivatives have also been described 13,17 .…”

Section: Introductionmentioning

confidence: 99%

Sorption, persistence, and leaching of the allelochemical umbelliferone in soils treated with nanoengineered sorbents

Real

Gámiz

López-Cabeza

et al. 2019

Sci Rep

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Coumarins represent an important family of allelochemicals with fungicidal, bactericidal, insecticidal, nematicidal, and herbicidal properties. Like for other allelochemicals, the short persistence of coumarins in soils can reduce their biological activity and hamper their application as environmentally friendly agrochemicals. We evaluated the sorption of the coumarin umbelliferone by eight soils and six sorbent materials, and then selected two nanoengineered sorbents, hexadecyltrimethylammonium-modified Arizona montmorillonite (SA-HDTMA) and olive-mill waste biochar (BC), to assess the effect of their addition to two distinct soils on umbelliferone sorption, persistence, and leaching. Umbelliferone was sorbed to a greater extent by the acid soils (A1-A2, K d > 4.0 L kg −1 ) than by the alkaline soils (B1-B6, K d < 0.5 L kg −1 ). The addition of BC and SA-HDTMA at a rate of 4% to alkaline soil (B2) increased the umbelliferone sorption K d value from 0.3 to 1.6–2.0 L kg −1 , whereas their addition to acid soil (A1) increased the K d value from 4.6 to 12.2–19.0 L kg −1 . Incubation experiments showed that BC had more impact than SA-HDTMA on the persistence of umbelliferone in the soils, increasing its half-life from 0.3-2.5 to 1.2–14.4 days, depending on the soil. Furthermore, the addition of BC to the top 0–5 cm of soil columns reduced leaching of umbelliferone and led to accumulation of umbelliferone residues in the top 0–5 cm soil layer. The addition of nanoengineered materials, such as organoclays and biochars, could thus be a suitable strategy to increase the persistence and reduce the mobility of coumarins in the rhizosphere with the aim of prolonging their biological activity.

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Section: Introductionmentioning

confidence: 99%

Sorption, persistence, and leaching of the allelochemical umbelliferone in soils treated with nanoengineered sorbents

Real

Gámiz

López-Cabeza

et al. 2019

Sci Rep

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“…However, there has been little attention on the ecological stoichiometry of poisonous plants. S. chamaejasme has been recently of increasing interest to grassland researchers [31–34], but there is little knowledge about its ecological stoichiometry. Although there is hardly any disturbance from herbivores to S. chamaejasme , we suppose that the distinct response of S. chamaejasme to grassland degeneration may help it outcompete other coexisting species.…”

Section: Introductionmentioning

confidence: 99%

High nutrient uptake efficiency and high water use efficiency facilitate the spread of Stellera chamaejasme L. in degraded grasslands

Guo

Liu

et al. 2019

BMC Ecol

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BackgroundStellera chamaejasme L. is a poisonous plant widely distributes in degraded grasslands in China. The mechanism underlying its spread remains unknown. In some degraded grasslands, S. chamaejasme has gradually replaced previous dominant species, such as Leymus chinensis, Stipa krylovii, Artemisia eriopoda on typical steppes. Apart from its unpalatability by livestock, we hypothesized that the survival strategy (nutrient uptake and water use efficiency) of S. chamaejasme in degraded grasslands could be distinct from other coexisting species in the community. Recently, ecological stoichiometry has been suggested as a new approach for studying the demand for natural resources of plants in a changing world, and the leaf carbon isotopic composition (δ13C leaf) as a rapid and effective high throughput phenotyping method for water use efficiency (WUE), both of which can reveal the survival and adaptive strategies of plants. Therefore, in this study we aimed to fill the knowledge gap concerning ecological stoichiometry in the leaf, stem, and root of S. chamaejasme and its surrounding soil on grasslands with different degrees of degradation, and comparing the leaf nutrient content and δ13C of S. chamaejasme with the coexisting species (L. chinensis, S. krylovii, A. eriopoda) in the communities. Toward this goal, we conducted a field survey in which plants and soils were sampled from four different degraded grasslands on typical steppes in China.ResultsOur results showed that there is no significant difference of carbon content (C%) and nitrogen content (N%) in leaves of S. chamaejasme in different degraded grasslands, and all element contents and element ratios in stems did not differ significantly. Meanwhile, ecological stoichiometry of S. chamaejasme is distinct from the coexisting species, with low C%, high N% and phosphorus content (P%) in the leaf, indicating high nutrient uptake efficiency of S. chamaejasme in nutrient-poor environments like degraded grasslands. Additionally, S. chamaejasme showed significant higher WUE than other species.ConclusionsOur results indicated that high nutrient uptake efficiency and high WUE of S. chamaejasme might together contribute to the spread of S. chamaejasme in degraded grasslands.

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“…Here, we sorted the studies done under both laboratory and field conditions, and found that the primary phytotoxic mechanisms were regulated via the following two pathways. First, allelochemicals (e.g., flavonoids, coumarins, and phenolic compounds) can inhibit mitosis (Yan et al, 2016), reduce chlorophyll content (Pan, Li, Yan, Guo, & Qin, 2015), disrupt root development (Yan et al, 2014), promote the overproduction of proline (Yan et al, 2016), inhibit germination (Cheng et al, 2011), reduce endogenous auxin content (Yang et al, 2011), and promote reactive oxygen species accumulation (Pan et al, 2015;Yan, Zeng, Jin, & Qin, 2015).The second pathway is the arrest of sexual multiplication by pollen allelopathy (Sun, Luo, & Wu, 2010). Interestingly, phytotoxic effects increase with age; that is, older plants are superior competitors compared with younger plants (Wei, Zhong, Xu, Du, & Sun, 2017).…”

Section: Interspecific Relationshipsmentioning

confidence: 99%

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 mechanisms of two coumarin allelochemicals from Stellera chamaejasme in lettuce seedlings

Cited by 35 publications

References 34 publications

Sorption, persistence, and leaching of the allelochemical umbelliferone in soils treated with nanoengineered sorbents

Sorption, persistence, and leaching of the allelochemical umbelliferone in soils treated with nanoengineered sorbents

High nutrient uptake efficiency and high water use efficiency facilitate the spread of Stellera chamaejasme L. in degraded grasslands

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

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