Bioherbicidal activity of drimane sesquiterpenes from Drimys brasiliensis Miers roots

Anese, Simoni; Jatobá, L.J.; Grisi, Patrícia Umeda; Gualtieri, Sônia Cristina Juliano; Santos, Mário F. C.; Berlinck, Roberto G. S.

doi:10.1016/j.indcrop.2015.04.042

Cited by 18 publications

(18 citation statements)

References 65 publications

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“…In this bioassay, compounds 3 , 5 , and 6 had significant inhibitory activities, with EC 50 values of 30.33 ± 0.94, 36.81 ± 5.98, and 35.19 ± 0.77μg/mL, respectively. These results show a similar trend compared with those in previous studies in which sesquiterpenes inhibited root elongation more effectively than they inhibited seed germination (Anese et al, 2015). …”

Section: Resultssupporting

confidence: 90%

Phytotoxic Terpenoids from Ligularia cymbulifera Roots

et al. 2017

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Ligularia cymbulifera is one of the predominant species in the Hengduan Mountains, China, and has led to a decrease in the amount of forage grass in this area. However, little is known about the mechanism behind its predominance. In this study, two novel eremophilane sesquiterpenes, ligulacymirin A and B (1 and 2), together with seven other known terpenoids (3–9), were isolated from the roots of L. cymbulifera. The structures of 1 and 2 were determined by spectroscopic methods and single-crystal X-ray diffraction. Each compound showed phytotoxic activities against Arabidopsis thaliana, and each was detected and identified in rhizosphere soil by UHPLC-MS. Compound 3 was the most potent phytotoxin, showing remarkable inhibition against both seedling growth (EC50 = 30.33 ± 0.94 μg/mL) and seed germination (EC50 = 155.13 ± 0.52 μg/mL), with an average content in rhizosphere soil of 3.44 μg/g. These results indicate that terpenoids in L. cymbulifera roots might be released as phytotoxins in rhizosphere soil to interfere with neighboring plants.

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Section: Resultssupporting

confidence: 90%

Phytotoxic Terpenoids from Ligularia cymbulifera Roots

et al. 2017

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“…Other authors used pure compounds extracted from different plant species and found their phytotoxic effects on the growth of T. aestivum coleoptiles (Anese, Jatobá, Grisi, Gualtieri, Santos, & Berlinck, 2015;Miranda et al, 2015;Jatobá et al, 2016;Silva et al, 2017). Thus, they confirmed that the initial growth bioassays of T. aestivum coleoptiles are a classic and efficient method to evaluate the phytotoxic activity of compounds belonging to the secondary plant metabolism (Hancock et al, 1964).…”

Section: Concentrationmentioning

confidence: 71%

Phytotoxic Potential of Benzyl Salicylate and Benzyl Benzoate on Bioindicator and Invasive Species

Fuentes¹,

Gualtieri²,

Imatomi³

et al. 2020

JAS

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The growing number of invasive species in agricultural areas reduces productivity and results in production losses. The need to discover new compounds with herbicidal activity increases as cases of resistance of invasive plants to herbicides rise. The aim of this study was to evaluate the phytotoxic potential of benzyl salicylate and benzyl benzoate upon the growth of Triticum aestivum coleoptiles and on the initial growth of Lactuca sativa, Lycopersicon esculentum, Allium cepa, T. aestivum, Euphorbia heterophylla, and Megathyrsus maximus. For the T. aestivum coleoptile bioassays, the treatments used the concentrations of 10-3 M, 3 × 10-4 M, 10-4 M, 3 × 10-5 M, and 10-5 M; while for the initial growth bioassays the concentrations of 10-3 M, 10-4 M, and 10-5 M were used. Both compounds presented a minimum of 89% growth inhibition on T. aestivum coleoptiles in all concentrations. Both compounds inhibited the growth of the root system and shoot of A. cepa and E. heterophylla at all concentrations. The species most affected by both compounds in all evaluated parameters was E. heterophylla. For the benzyl benzoate, the inhibition of the roots of E. heterophylla were statistically equivalent to those obtained with the herbicide. Regarding benzyl salicylate, the root inhibition in this species in the 10-4 M and 10-5 M treatments did not differ statistically from the herbicide in the same concentrations. Benzyl salicylate and benzyl benzoate are compounds that presented phytotoxic activity on E. heterophylla and for the first time the phytotoxic effect of these compounds on invasive species is reported.

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“…Staining was performed according to a modified Fuchs method [27]. After 7 days in 70% EtOH, the roots were clarified in a 10% NaOH solution at 50°C for 48 h. Roots were then immersed in a 0.25% lacmoid (C 48 H 31 N 3 O 13 ) ethanolic solution for 24 h.…”

Section: Methodsmentioning

confidence: 99%

“…BRS seda) early growth as a measure of its allelopathic potential. Phytotoxicity was assessed by measuring morphological and biochemical parameters that can influence competitiveness in field conditions, such as stem and root length and chlorophyll content [ 27 , 28 ]. As this bioassay was intended to serve as the first assessment of selligueain A phytotoxicity to plant early development, sesame was chosen as the target species because of its genetic homogeneity, which tends to result in less variance in early development parameters compared with that of the wild species [ 29 ].…”

Section: Methodsmentioning

confidence: 99%

Allelopathy of Bracken Fern (Pteridium arachnoideum): New Evidence from Green Fronds, Litter, and Soil

et al. 2016

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The neotropical bracken fern Pteridium arachnoideum (Kaulf.) Maxon. (Dennstaedtiaceae) is described as an aggressive pioneer plant species. It invades abandoned or newly burned areas and represents a management challenge at these invaded sites. Native to the Atlantic Forest and Cerrado (Tropical Savanna) Brazilian biomes, P. arachnoideum has nevertheless become very problematic in these conservation hotspots. Despite some reports suggesting a possible role of allelopathy in this plant’s dominance, until now there has been little evidence of isolated and individually identified compounds with phytotoxic activities present in its tissues or in the surrounding environment. Thus, the aim of this study was to investigate the allelopathic potential of P. arachnoideum by isolating and identifying any secondary metabolites with phytotoxic activity in its tissues, litter, and soil. Bioguided phytochemical investigation led to the isolation and identification of the proanthocyanidin selligueain A as the major secondary compound in the green fronds and litter of this fern. It is produced by P. arachnoideum in its green fronds, remains unaltered during the senescence process, and is the major secondary compound present in litter. Selligueain A showed phytotoxic activity against the selected target species sesame (Sesamum indicum) early development. In particular, the compound inhibited root and stem growth, and root metaxylem cell size but did not affect chlorophyll content. This compound can be considered as an allelochemical because it is present in the soil under P. arachnoideum patches as one of the major compounds in the soil solution. This is the first report of the presence of selligueain A in any member of the Dennstaedtiaceae family and the first time an isolated and identified allelochemical produced by members of the Pteridium species complex has been described. This evidence of selligueain A as a putative allelochemical of P. arachnoideum reinforces the role of allelopathy in the dominance processes of this plant in the areas where it occurs.

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Bioherbicidal activity of drimane sesquiterpenes from Drimys brasiliensis Miers roots

Cited by 18 publications

References 65 publications

Phytotoxic Terpenoids from Ligularia cymbulifera Roots

Phytotoxic Terpenoids from Ligularia cymbulifera Roots

Phytotoxic Potential of Benzyl Salicylate and Benzyl Benzoate on Bioindicator and Invasive Species

Allelopathy of Bracken Fern (Pteridium arachnoideum): New Evidence from Green Fronds, Litter, and Soil

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