Allelopathic effects of Cynara cardunculus L. leaf aqueous extracts on seed germination of some Mediterranean weed species

Scavo, Aurelio; Restuccia, Alessia; Pandino, Gaetano; Onofri, Andrea; Mauromicale, Giovanni

doi:10.4081/ija.2018.1021

Cited by 36 publications

(30 citation statements)

References 39 publications

(37 reference statements)

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“…However, our study showed that the allelopathic potential of CCs strongly depends on their concentration in the aqueous extracts. With the exception of C. sativa, almost all CCs, and especially F. esculentum and G. abssynica, tested at lower concentrations slightly stimulated the early growth of A. artemisiifolia, which has also been explained previously by the fact that the same compound may be inhibitory at a high concentration, stimulatory at a low concentration or have no effect at other concentrations [23]. Among the Brassicaceae CCs tested, we found that C. sativa had the strongest inhibitory potential against the germination and early growth of A. artemisiifolia.…”

Section: Discussionsupporting

confidence: 73%

“…A promising way to use allelopathy in weed control is using water extracts of allelopathic plants as herbicides [21]. Indeed, high-weed germination inhibition caused by the residues of those species has already been proved in a greenhouse experiment [22] and usually correlated with the presence of different phenols, the most active allelochemicals, in plant tissue [10,20,22,23]. Most allelochemicals, including phenols, are water-soluble, so aqueous extraction is the easiest way to isolate them [24].…”

Section: Introductionmentioning

confidence: 99%

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Inhibitory Effects of Brassicaceae Cover Crop on Ambrosia artemisiifolia Germination and Early Growth

Šćepanović

Sarić-Krsmanović

Šoštarčić

et al. 2021

Plants

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Several cover crops (CCs) exert allelopathic effects that suppress weed growth. The aim of the present study was to evaluate the effects of aqueous extracts containing different concentrations [0, 0.5, 1, 2.5, 5, 7.5 and 10% (w/v)] of Brassicaceae CCs (Sinapis alba, Raphanus sativus, Camellina sativa) and of the CCs Fagopyrum esculentum and Guizotia abyssinica on germination and early growth of Ambrosia artemisiifolia L. The allelopathic effects were species and concentration-dependent. C. sativa, for example, caused the greatest potential to inhibit germination, shoot, radicle length and fresh seedling weight, whereas S. alba and R. sativus inhibited germination and early growth of A. artemisiifolia only at concentrations ≥ 7.5%. In contrast, no inhibition was observed when aqueous extracts of F. escultneum and G. abyssinica were added at any of tested concentration. Liquid chromatography-tandem mass spectrometry detected 15 phenolic compounds in Brassicaceae CCs with the highest content (µg/g) of vanillin (48.8), chlorogenic acid (1057), vanilic acid (79), caffeic acid (102.5) and syringic acid (27.3) in C. sativa. Our results suggest that C. sativa is the most allelopathic CCs and that the fruits of C. sativa are the plant organs richest in allelochemicals.

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Section: Discussionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Inhibitory Effects of Brassicaceae Cover Crop on Ambrosia artemisiifolia Germination and Early Growth

Šćepanović

Sarić-Krsmanović

Šoštarčić

et al. 2021

Plants

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“…Recently, the Asteraceae member Cynara cardunculus L. was studied for its allelopathic potential (Scavo et al 2018b(Scavo et al , 2019a. The compounds responsible for this phytotoxic activity are sesquiterpene lactones such as cynaropicrin, aguerin B and grosheimin, and polyphenols such as chlorogenic acid, luteolin-and apigenin derivatives (Pandino et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Seeming field allelopathic activity of Cynara cardunculus L. reduces the soil weed seed bank

Scavo

Restuccia

Abbate

et al. 2019

Agron. Sustain. Dev.

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Weeds are one of the most important pests in agroecosystems, causing considerable economic losses on the production. The widespread use of herbicides during the last decades has led to an increased search for more environmentally sustainable methods for weed management. The manipulation of allelopathic interactions between crops and weeds, such as the introduction of an allelopathic species within a crop rotation, represents a valid alternative. In a multidisciplinary approach, we evaluated the effects resulting from three consecutive years of cultivation, in two different areas, with the three botanical varieties of Cynara cardunculus L. (globe artichoke, cultivated and wild cardoon), compared with a classic Mediterranean wheat/faba bean rotation and an olive grove, on the quali/quantitative weed soil seed bank and the changes in the eubacterial communities. Furthermore, the in vitro antibacterial activity of aqueous, methanolic, and ethanolic leaf extracts of cultivated cardoon against three bacteria involved in the soil N-cycle was investigated. In both areas, C. cardunculus caused a significant reduction (from − 34 to − 50%) on the amount of weed seeds in all treatments compared to controls; in some cases, a reduction of the number of weed species was observed. On one hand, the presence of cultivated cardoon had a negative influence towards Bacillus subtilis, while on the other, a positive one towards the beneficial soil bacteria Pseudomonas putida and Azospirillum brasilense. Moreover, methanolic and ethanolic leaf extracts from cultivated cardoon showed an inhibitory activity on B. lichenoformis, while there were no negative effects on Rhizobium leguminosarum and Sinorhizobium meliloti, two important bacteria involved in biological N 2 fixation. These results confirmed, for the first time, the field allelopathic activity of C. cardunculus in monoculture and the possibility of introducing it within a crop rotation as an indirect method for a chemical-free weed seed bank control while respecting soil eubacterial communities.

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“…Several phenols are water soluble and can successfully be extracted using this method. Aqueous extracts have been used to investigate the bioherbicidal potential of many plants and have been found to produce significant effects mainly at the highest tested concentrations [ 1 , 59 , 60 ].…”

Section: The Use Of Plant-based Bioherbicidesmentioning

confidence: 99%

Bioherbicidal Potential of the Essential Oils from Mediterranean Lamiaceae for Weed Control in Organic Farming

Mastro

Mahdi

Ruta

2021

Plants

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In all farming systems, weeds are the most expensive pest to manage, accounting for 30% of potential losses. In organic farming, the problem may be further amplified by restrictions on herbicides, thus making weeds the main problem faced by organic farmers in the field. In this sense, much research is focusing on the allelopathic potential of plants as an ecological weed control tool. Many plant species can release allelopathic compounds with high phytotoxicity that can be used in weed control. Species belonging to the Lamiaceae family have been studied widely for this purpose, and their essential oils (EOs) appear to be promising bioherbicides. However, there are still many challenges for their development. Considering these aspects, a review of the bioherbicidal effect of EOs from Mediterranean Lamiaceae could help identify the most effective ones and the challenges for their actual development.

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Allelopathic effects of Cynara cardunculus L. leaf aqueous extracts on seed germination of some Mediterranean weed species

Cited by 36 publications

References 39 publications

Inhibitory Effects of Brassicaceae Cover Crop on Ambrosia artemisiifolia Germination and Early Growth

Inhibitory Effects of Brassicaceae Cover Crop on Ambrosia artemisiifolia Germination and Early Growth

Seeming field allelopathic activity of Cynara cardunculus L. reduces the soil weed seed bank

Bioherbicidal Potential of the Essential Oils from Mediterranean Lamiaceae for Weed Control in Organic Farming

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