Physiological and biochemical mechanisms of allelochemicals in aqueous extracts of diploid and mixoploid Trigonella foenum-graecum L.

Omezzine, Faten; Ladhari, Afef; Haouala, Rabiaa

doi:10.1016/j.sajb.2014.04.009

Cited by 37 publications

(26 citation statements)

References 67 publications

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“…), cell division (Omezzine et al . ), ATP synthesis, phytohormone metabolism and the production of reactive oxygen species (ROS) (Gniazdowska et al . ).…”

Section: Introductionmentioning

confidence: 99%

Phytotoxic potential of Senna occidentalis (L.) Link extracts on seed germination and oxidative stress of Ipê seedlings

Silva

Vieira

2019

Plant Biol J

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Senna occidentalis is an invasive plant producing a series of allelochemicals that might inhibit the development of other plants. The objective of this study was to assess the phytotoxic effect of S. occidentalis extracts on the germination, development and antioxidant defence of the native species Tabebuia chrysotricha, T. pentaphylla, T. roseoalba and Handroanthus impetiginosus (Ipê species).• We evaluated the effects of chemicals extracted from S. occidentalis on the germination rate, germination speed index (GSI) and biometric parameters of the test species under controlled conditions. The effect of the extracts on the pigment content, amount of H 2 O 2 and malondialdehyde (MDA), and the activity of the antioxidant enzymes in roots and leaves were also tested.• Alkaloids, coumarins, phenols, saponins, free steroids and condensed tannins were present in all extracts of S. occidentalis, while catechins were present only in leaf and stem extracts. Stem and root extracts caused a growth reduction in all Ipê species and total inhibition of seed germination in T. chrysotricha and T. roseoalba. All target species showed an increase in H 2 O 2 and MDA in radicles and leaves. Oxidative stress contributed strongly to the morphological changes, such as seed blackening, thinning and darkening of radicle tips and reduction of biomass allocation in all Ipê species.

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“…), cell division (Omezzine et al . ), ATP synthesis, phytohormone metabolism and the production of reactive oxygen species (ROS) (Gniazdowska et al . ).…”

Section: Introductionmentioning

confidence: 99%

Phytotoxic potential of Senna occidentalis (L.) Link extracts on seed germination and oxidative stress of Ipê seedlings

Silva

Vieira

2019

Plant Biol J

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“…Nature, in turn, affects the plant growth and development by different types of stresses that could limit the agricultural productivity (AL-Wakeel et al, 2013;Saleh and Madany, 2015). Duration, severity and rate of the imposed stress are the factors underlying the plant response to stress (Omezzine et al, 2014). Within their communities, plants, including weeds, compete together for space, moisture, nutrients and light.…”

Section: Introductionmentioning

confidence: 99%

“…They can also interact, chemically, by releasing secondary metabolites (allelochemicals) into the growth environment, a phenomenon called allelopathy (Einhellig, 1996;Tanveer and Rehman, 2010;Harun et al, 2014). Allelochemicals can be beneficial or detrimental to the receptor plants (Omezzine et al, 2014), imposing their effect on cellular, molecular and physiological levels (Barkosky et al, 2000;Batish et al, 2006). The novel weapon hypothesis suggests that allelopathy is one of the effective tools that allow plants to invade and establish in new ecosystems and eventually determines the building and composition of the invaded plant community (Callaway and Ridenour, 2004).…”

Section: Introductionmentioning

confidence: 99%

Phytotoxicity of Euphorbia helioscopia L. on Triticum aestivum L. and Pisum sativum L.

Madany

Saleh

2015

Annals of Agricultural Sciences

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Invasive field weeds, such as Euphorbia sp., represent main threat for crop productivity. The present work was conducted to evaluate the phytotoxicity of Euphorbia helioscopia on wheat (Triticum aestivum L.) and pea (Pisum sativum L.). The influence of aqueous extract from shoot of E. helioscopia, at different rates (1.0%, 2.5%, 5.0%, and 10.0%; w/v), on germination and early seedling growth of wheat and pea as well as some of the synchronized physiological aspects was investigated. E. helioscopia aqueous extract severely affected the germination in a concentration dependent manner. Plumule and radicle length, as well as their fresh and dry masses were markedly reduced. Moreover, amylase activity and total soluble sugars were significantly reduced in response to treatment with aqueous Euphorbia extract, in both test plants, whereas, proteolytic activity showed marked improvement. The linear regression analysis revealed the presence of positive linear correlation between germination rate and amylase activity. The stress markers such as proline, phenolics and flavonoids were markedly accumulated upon treatment with E. helioscopia extract. The increment in the level of total phenolics was concomitant with an improvement in phenylalanine ammonia lyase and peroxidase activities. High performance liquid chromatography analysis of E. helioscopia extract revealed the presence of two cinnamic acid derivatives (caffeic and p-coumaric acids), two benzoic acid derivatives (vanillic and syringic acids) and a flavanonol (Dihydroquercetin). To our knowledge, this is the first study to investigate the physiological implications underlying the phytotoxicity of E. helioscopia.ª 2015 Production and hosting by Elsevier B.V. on behalf of Faculty of Agriculture, Ain Shams University.

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“…Because it causes mitochondrial disturbance by reducing activities of dehydrogenase enzyme, causes stomatal closing, cell membrane damages and disturb cell membrane permeability (Shabala, 2010). Allelochemical disturb nutrient absorption on root, photosynthesis, respiration, transpiration, and efficient photosystem II ATP synthesis (Omezzine et al, 2014).…”

Section: Root Inhibitionmentioning

confidence: 99%

Bioactive compound from mangoes leaves extract as potential soil bioherbicide to control amaranth weed (Amaranthus spinosus Linn.)

Syahri

Widaryanto

Wicaksono

2017

J.Degrade.Min.Land Manage.

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Abstract:Bioherbicide is important approach for sustainable farming practices. One of plant that has potentially as bioherbicide, which is environmentally safe, is mango. Mango leaf extract is useful as bioherbicide because it produces allelochemical compounds, which could inhibit the weed growth. This research was designed to study the effect of several mangoes species leaves extract to control dominant weed (amaranth). Split plot design was implemented using mango species (S) as the main plot; S1 (Mangifera odorata Griff.), S2 (Mangifera foetida Lour) and S3 (Mangifera indica L.). While the sub plots were concentrations of mango's leaf extract (K), that included 0, 500, 1000, 1500, and 2000 ppm. Results of the research showed that all parameters of weed growth (amaranth) were inhibited along with the increase of concentration of the mango's leaf extract. The results also showed the significant inhibition of amaranth's dry weight. Among three species of mangoes, M. indica L. showed the best inhibition mechanism to the amaranth weed, which significantly suppressed the weed growth on just 1000 ppm concentration.

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Physiological and biochemical mechanisms of allelochemicals in aqueous extracts of diploid and mixoploid Trigonella foenum-graecum L.

Cited by 37 publications

References 67 publications

Phytotoxic potential of Senna occidentalis (L.) Link extracts on seed germination and oxidative stress of Ipê seedlings

Phytotoxic potential of Senna occidentalis (L.) Link extracts on seed germination and oxidative stress of Ipê seedlings

Phytotoxicity of Euphorbia helioscopia L. on Triticum aestivum L. and Pisum sativum L.

Bioactive compound from mangoes leaves extract as potential soil bioherbicide to control amaranth weed (Amaranthus spinosus Linn.)

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