ChemInform Abstract: Isopentenylindole Derivatives and Other Components of Esenbeckia leiocarpa.

Monachè, Franco Delle; Monache, Giuliano Delle; Souza, Matheus de Freitas; Cavalcanti, M. Da Salete; Chiappeta, Alda de Andrade

doi:10.1002/chin.199005299

Cited by 12 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These data suggest that E. leiocarpa may inhibit other plant species or facilitate the establishment of their own individuals. The presence of compounds with allelopathic potential in roots and leaves of this species (Delle Monache et al 1989;Delle Monache et al 1990;Nakatsu et al 1990;Michael 1993), as well as the existence of phytotoxic substances in another species of the genus Esenbeckia (Mata et al 1998) strengthen the idea that E. leiocarpa may be allelopathic.…”

Section: Introductionmentioning

confidence: 73%

Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)

et al. 2010

View full text Add to dashboard Cite

-(Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)). We investigated the inhibitory potential of aqueous extracts of bark and leaves of Esenbeckia leiocarpa Engl. on lettuce germination and early seedling growth. We compared the effects of four concentrations (100, 75, 50 and 25%) of each extract to water and polyethylene glycol (PEG 6000) solution controls for four replicates of 50 seeds for germination and four replicates of ten seedlings for seedling growth. The inhibitory effects of E. leiocarpa extracts on the percentage of germination and on the germination speed seemed to be more than simply an osmotic effect, except for the percentage of seeds germinated in bark extracts. When compared to water control, both bark and leaf extracts delayed germination, and leaf extracts also affected the percentage of germinated seeds. Leaf extracts of all concentrations strongly inhibited the development of seedlings and caused them some degree of abnormality; bark extracts also caused abnormalities and reduced seedling growth. Root development was more sensitive to the extracts than hypocotyl growth. The negative effects of leaf extracts on germination and seedling growth were more pronounced than those of bark extracts, and the overall effects of both extracts were positively correlated with extract concentrations. Key words: allelopathy, germination, growth, inhibition, plant-plant interaction RESUMO -(Potencial alelopático de folhas e cascas de Esenbeckia leiocarpa Engl. (Rutaceae)). Neste trabalho, nós investigamos o potencial inibitório de extratos aquosos de folhas e cascas de Esenbeckia leiocarpa Engl. na germinação e no crescimento inicial de plântulas de alface. Nós comparamos os efeitos de quarto concentrações (100, 75, 50 e 25%) de cada extrato a um controle em água e outro em uma solução de polietilenoglicol (PEG 6000), com quatro repetições de 50 sementes para o experimento de germinação e quatro repetições de 10 plântulas para o experimento de crescimento. Os efeitos inibitórios dos extratos de E. leiocarpa na porcentagem e na velocidade de germinação foram mais do que um efeito do potencial osmótico das soluções, exceto para a porcentagem de sementes germinadas nos extratos de casca. Ambos os extratos causaram atrasos na germinação, sendo que os extratos de folha afetaram também a porcentagem de sementes germinadas. Os extratos de folha, em todas as concentrações, inibiram fortemente o desenvolvimento das plântulas e causaram a todas elas algum grau de anormalidade; os extratos de casca também causaram anormalidades e reduziram o crescimento das plântulas. O desenvolvimento da radícula foi mais sensível à ação dos extratos do que o crescimento do hipocótilo. Os efeitos negativos dos extratos de folhas foram mais pronunciados do que os causados pelos extratos de casca e os efeitos de ambos os extratos foram sempre positivamente correlacionados com sua concentração. Palavras-chave: alelopatia, crescimento, germinação, inibição, interação planta-panta

show abstract

Section: Introductionmentioning

confidence: 73%

Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Prenylated indoles are fairly common constituents of the family Annonaceae, although these compounds have also been found in the family Rutaceae [42][43][44] as well as in riverworts [45]. These compounds have been isolated from the Annonaceae genera Annonidium [46], Asteranthe [47], Hexalobus [48], Isolona [49][50][51], Monodora [51], and Uvaria [52].…”

Section: Prenylated Indolesmentioning

confidence: 99%

Unusual metabolites from some Tanzanian indigenous plant species

Nkunya

2005

Pure and Applied Chemistry

View full text Add to dashboard Cite

In this paper, the chemistry of some unusual natural products that were isolated from various Tanzanian indigenous plant species during the past 20 years is reviewed. Among the compounds covered in this review are cyclohexane epoxides; heptane derivatives; oxygenated pyrenes; phenanthrene derivatives; flavonoids with uncommon structural frameworks; mono-, bis-, and dimeric prenylated indoles; and variously substituted mono-, sesqui-, and diterpenoids.

show abstract

“…However, there are only two examples of 3,7-diprenylated indoles reported in the Rutaceae plants Esenbeckia leiocarpa (Delle Monache et al, 1989) and Glycosmis trichanthera (Vajrodaya et al, 1998). Hence, this type of indole might be of chemotaxonomic significance for the Rutaceae.…”

Section: Resultsmentioning

confidence: 96%

Indole and carbazole alkaloids from Glycosmis montana with weak anti-HIV and cytotoxic activities

et al. 2005

View full text Add to dashboard Cite

ChemInform Abstract: Isopentenylindole Derivatives and Other Components of Esenbeckia leiocarpa.

Abstract: The compounds (I)‐(IV) and (VII) are new natural products from the title species.

Cited by 12 publications

References 0 publications

Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)

Allelopathic potential of bark and leaves of Esenbeckia leiocarpa Engl. (Rutaceae)

Unusual metabolites from some Tanzanian indigenous plant species

Indole and carbazole alkaloids from Glycosmis montana with weak anti-HIV and cytotoxic activities

Contact Info

Product

Resources

About