| plants from puerto rico with anti-mycobacterium tuberculosis properties. | this study assesses the antitubercular potential of natural products obtained from plants reputed to have medicinal properties and collected from the tropical flora of puerto rico. | 1998 | 9883470 |
| antimicrobial activity of bark extracts of syzygium jambos (l.) alston (myrtaceae). | syzygium jambos (l.) alston (myrtaceae) is a widespread medicinal plant traditionally used in sub-saharan africa to treat infectious diseases. acetone and aqueous extracts from the bark of s. jambos were tested for antimicrobial activity in vitro by the agar dilution method in petri dishes. both extracts showed some activity against the tested micro-organisms. they proved to be particularly effective on staphylococcus aureus, yersinia enterocolitica and coagulase negative staphylococci among whi ... | 2000 | 10904178 |
| the efficacy of herbal medicines in clinical models: the case of jambolan. | a large proportion of drugs employed in clinical practice come from plants. the development of new medical agents is a lengthy and time-consuming process, with the identification of extracts with putative therapeutic effects, the isolation of active ingredients and pre-clinical studies to investigate their pharmacological profile. we propose a shortcut in this sequence of procedures, testing first if the extracts, in the way they are used by patients, have efficacy in clinical models. on the one ... | 2006 | 16963214 |
| antidermatophytic triterpenoids from syzygium jambos (l.) alston (myrtaceae). | chemical investigation of the etoac extract of the stem bark of syzygium jambos (l.) alston (myrtaceae) afforded a number of known triterpenes such as friedelin, beta-amyrin acetate, betulinic acid and lupeol. friedelin was submitted to a baeyer-villiger oxidation, and was also reduced with lialh(4) to give the known friedelolactone and friedelanol, respectively. these compounds were identified by comparison of nmr spectral data with those from the literature. the etoac extract and the isolated ... | 2007 | 17128435 |
| antinociceptive activity of syzygium jambos leaves extract on rats. | syzygium jambos (l.) alston (myrtaceae) (syn eugenia jambos) is a widespread medicinal plant traditionally used in sub-saharan africa to treat several diseases. the analgesic potential of leaf hydro-alcoholic extracts was assessed in rats. hot plate and formalin tests were used to estimate cutaneous nociception whereas measurements of forelimb grip force were done to assess muscular nociception under normal and inflammatory conditions. in the hot plate test, syzygium jambos extract produced a si ... | 2007 | 17478066 |
| syzygium jambos and solanum guaraniticum show similar antioxidant properties but induce different enzymatic activities in the brain of rats. | syzygium jambos and solanum guaraniticum are both employed in brazil as medicinal plants, even though their potential toxicity is not well established and they are frequently misused. the aim of this study was investigate the effect of the aqueous leaf extracts of both plants on δ-aminolevulinate dehydratase (δ-ala-d) and acetylcholinesterase (ache) activities and the antioxidant action against oxidative damage induced by sodium nitroprusside in rats, using in vitro assays. in addition, the pres ... | 2013 | 23912272 |
| antibacterial and anti-inflammatory effects of syzygium jambos l. (alston) and isolated compounds on acne vulgaris. | acne vulgaris is a chronic skin disorder leading to inflammation as a result of the production of reactive oxygen species due to the active involvement of propionibacterium acnes (p. acnes) in the infection site of the skin. the current study was designed to assess the potential of the leaf extract of syzygium jambos l. (alston) and its compounds for antibacterial and anti-inflammatory activity against the pathogenic p. acnes. | 2013 | 24168697 |
| bioactivity of syzygium jambos methanolic extracts: antibacterial activity and toxicity. | methanol extracts from s. jambos leaves were tested for antimicrobial activity and toxicity. s. jambos leaf extract inhibited the growth of 4 of the 14 bacteria tested (29%). both gram-positive and gram-negative bacterial growths were inhibited by s. jambos leaf extract, although gram-positive bacteria appeared more susceptible. two of the 10 gram-negative bacteria (20%) and 2 of the 4 gram-positive bacteria (50%) tested had their growths inhibited by the extract. the leaf extract also proved to ... | 2010 | 21808530 |
| a screening for antimicrobial activities of caribbean herbal remedies. | the tramil program aims to understand, validate and expand health practices based on the use of medicinal plants in the caribbean, which is a "biodiversity hotspot" due to high species endemism, intense development pressure and habitat loss. the antibacterial activity was examined for thirteen plant species from several genera that were identified as a result of tramil ethnopharmacological surveys or were reported in ethnobotanical accounts from puerto rico. the aim of this study was to validate ... | 2013 | 23731467 |
| evaluation of phytochemicals from medicinal plants of myrtaceae family on virulence factor production by pseudomonas aeruginosa. | virulence factors regulated by quorum sensing (qs) play a critical role in the pathogenesis of an opportunistic human pathogen, pseudomonas aeruginosa in causing infections to the host. hence, in the present work, the anti-virulence potential of the medicinal plant extracts and their derived phytochemicals from myrtaceae family was evaluated against p. aeruginosa. in the preliminary screening of the tested medicinal plant extracts, syzygium jambos and syzygium antisepticum demonstrated a maximum ... | 2017 | 28294414 |
| quest to elucidate the life cycle of puccinia psidii sensu lato. | there is controversy surrounding the described life cycle of the rust fungus puccinia psidii sensu lato, which causes disease on several plant species in the family myrtaceae. the objective of this study was to determine whether p. psidii s.l. is autoecious by performing basidiospore inoculations, and microscopically examining the fate of basidiospores on the leaf surface and nuclear condition at different stages of rust development. no spermogonia developed on leaves of agonis flexuosa inoculat ... | 2014 | 24528646 |
| investigating the host-range of the rust fungus puccinia psidii sensu lato across tribes of the family myrtaceae present in australia. | the exotic rust fungus puccinia psidii sensu lato was first detected in australia in april 2010. this study aimed to determine the host-range potential of this accession of the rust by testing its pathogenicity on plants of 122 taxa, representative of the 15 tribes of the subfamily myrtoideae in the family myrtaceae. each taxon was tested in two separate trials (unless indicated otherwise) that comprised up to five replicates per taxon and six replicates of a positive control (syzygium jambos). ... | 2012 | 22523596 |
| fungal planet description sheets: 400-468. | novel species of fungi described in the present study include the following from australia: vermiculariopsiella eucalypti, mulderomyces natalis (incl. mulderomyces gen. nov.), fusicladium paraamoenum, neotrimmatostroma paraexcentricum, and pseudophloeospora eucalyptorum on leaves of eucalyptus spp., anungitea grevilleae (on leaves of grevillea sp.), pyrenochaeta acaciae (on leaves of acacia sp.), and brunneocarpos banksiae (incl. brunneocarpos gen. nov.) on cones of banksia attenuata. novel foli ... | 2016 | 27616795 |
| fungal planet description sheets: 371-399. | novel species of fungi described in the present study include the following from australia: neoseptorioides eucalypti gen. & sp. nov. from eucalyptus radiata leaves, phytophthora gondwanensis from soil, diaporthe tulliensis from rotted stem ends of theobroma cacao fruit, diaporthe vawdreyi from fruit rot of psidium guajava, magnaporthiopsis agrostidis from rotted roots of agrostis stolonifera and semifissispora natalis from eucalyptus leaf litter. furthermore, neopestalotiopsis egyptiaca is desc ... | 2015 | 26823636 |