Phytochemical and allelopathic studies of Terminalia catappa L. (Combretaceae)

Baratelli, Tatiana de Gouveia; Gomes, Anne Caroline Candido; Wessjohann, Ludger A.; Kuster, Ricardo Machado; Simas, Naomi Kato

doi:10.1016/j.bse.2011.12.008

Cited by 35 publications

(23 citation statements)

References 47 publications

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“…Evaluation of the dichloromethanic partition of ethanolic extract of A . hypogaea performed in the present study showed inhibition of growth of weed, similarly to the results reported with extracts of Terminalia catappa fruits [17]. …”

Section: Discussionsupporting

confidence: 91%

“…In a study of allelopathic activity of Terminalia catappa fruit extracts biomonitored by L . sativa , it was demonstrated that the IC 50 of the dichloromethanic partition was 4.5 times reduced as compared to crude ethanol extracts [17]. In a paper with subfractions of Cleome arabica , a concentration of 3.000 ppm was necessary to inhibit 50% of L .…”

Section: Discussionmentioning

confidence: 99%

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Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaea L.) Cultivars on Lettuce (Lactuca sativa) and Weed Plants

Casimiro

Mansur

Pacheco

et al. 2017

The Scientific World Journal

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Peanut (Arachis hypogaea L.) is the fourth most consumed oleaginous plant in the world, producing seeds with high contents of lipids, proteins, vitamins, and carbohydrates. Biological activities of different extracts of this species have already been evaluated by many researchers, including antioxidant, antitumoral, and antibacterial. In this work, the allelopathic activity of extracts from different Brazilian peanut cultivars against lettuce (Lactuca sativa) and two weed plants (Commelina benghalensis and Ipomoea nil) was studied. Aerial parts, roots, seeds, and seed coats were used for the preparation of crude extracts. Seed extract partitioning was performed with n-hexane, dichloromethane, ethyl acetate, n-butanol, and aqueous residue. Germination and growth of hypocotyls and rootlets were evaluated after one and five days of incubation with plant extracts, respectively. Crude seed extract and its dichloromethanic partition displayed highest allelopathic activity. These results contribute for the study of new potential natural herbicides.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaea L.) Cultivars on Lettuce (Lactuca sativa) and Weed Plants

Casimiro

Mansur

Pacheco

et al. 2017

The Scientific World Journal

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“…For sandbank vegetation that is essentially composed by helophytes (Carrasco, 2003), this factor should be one of the main reasons for these results. In addition, T. catappa shows allelopathy and inhibits roots development of other plants, and the allelochemicals are found in the leaves and fruits, meaning that even their litter has toxins (Baratelli, 2006;Baratelli et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Population structure and effects by the invasive exotic indian-almond over autochthonous vegetation from a sandbank

Santos

Fabricante

2018

Neotropical Biology and Conservation

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In the face of the severe effects caused by biological invasions, this study aimed at evaluating the population structure and impacts caused by the invasive exotic species T. catappa L. over native plant composition, richness and diversity. The study area is located at Atalaia Beach, Aracaju, Sergipe, Northeastern Brazil, and comprises sandbank sites. In order to evaluate the population structure of this invasive exotic species and its impacts on the biota, pertinent statistics were carried out. The results demonstrated that T. catappa shows density of 9,480 ind.ha-1 , being 8,430 ind.ha-1 for non-adults and 1,050 ind.ha-1 for adults, and self-regenerating population. The average species richness for invaded (I) areas and non-invaded (NI) were 6.1 ± 2.42 and 9.7 ± 2.45, respectively. The average abundance of individuals in NI was 1,057.6 ± 432.85 and 184.9 ± 126.66 for I. The diversity and the equability were 2.38 and 0.66 in I and 2.86 and 0.75 in NI, respectively. Thus, T. catappa causes significant impacts on species composition and richness, abundance and autochthonous diversity.

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“…TLC analysis indicated that the two EtOAc extracts showed a similar TLC pattern. Hence, the two extracts were combined (5.4 g) and screened for phytotoxic activity (Baratelli et al 2012). Chromatographic separation of the combined EtOAc extracts was by CC using normal-phase silica (Merck 7734) eluted with CH 2 Cl 2 –MeOH gradient.…”

Section: Methodsmentioning

confidence: 99%

“…Similarly, 800 μL aliquot of abscisic acid (10 ppm solution) was used as the positive control, which exhibited 100% inhibition of lettuce seed germination. In lettuce seed germination bioassay, four replicates were used for each treatment and the experiment was carried out twice (Baratelli et al 2012). …”

Section: Methodsmentioning

confidence: 99%

Two phytotoxic azaphilone derivatives fromChaetomium globosum, a fungal endophyte isolated fromAmaranthus viridisleaves

Piyasena

Wickramarachchi²,

Kumar

et al. 2015

Mycology

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A fungal endophyte isolated from the leaves of the allelopathic plant Amaranthus viridis of the family Amaranthaceae was identified as Chaetomium globosum through molecular means using internal transcribed spacer (ITS) region of rDNA gene. This is the first report of the isolation of C. globosum from Amaranthaceae. Chromatographic separation of the EtOAc extract of the fungal fermentation in potato dextrose broth yielded two known chlorine-containing azaphilone derivatives, chaetomugilin D (1) and chaetomugilin J (2). Compounds 1 and 2 were found to show phytotoxic activity in the lettuce (Lactuca sativa) seed germination bioassay. The IC50 values of 1 and 2 for root growth inhibition were 24.2 and 22.6 ppm, respectively, while IC50 values for shoot growth inhibition were 27.8 and 21.9 ppm, respectively. Phytotoxic activities of the chaetomugilin group of compounds have been reported for the first time, although their antifungal, antimicrobial and cytotoxic activities are known.

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Phytochemical and allelopathic studies of Terminalia catappa L. (Combretaceae)

Cited by 35 publications

References 47 publications

Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaea L.) Cultivars on Lettuce (Lactuca sativa) and Weed Plants

Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaea L.) Cultivars on Lettuce (Lactuca sativa) and Weed Plants

Population structure and effects by the invasive exotic indian-almond over autochthonous vegetation from a sandbank

Two phytotoxic azaphilone derivatives fromChaetomium globosum, a fungal endophyte isolated fromAmaranthus viridisleaves

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