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Chemical study of leaves of Chrysophyllum marginatum (Hook. & Arn.) Radlk (Sapotaceae)
Silva, Viviane Candida da;Lopes, Márcia Nasser;Bolzani, Vanderlan da Silva;
Química Nova , 2006, DOI: 10.1590/S0100-40422006000300016
Abstract: the fractionation of the antioxidant ethyl acetate extract obtained from the dried leaves of chrysophyllum marginatum afforded six substances identified as: a-amirin, gallic acid, myricitrin, quercitrin, (-)-epigallocatechin and (-)-epigallocatechin-3-o-gallate. this study contributes to the knowledge of the secondary metabolites produced by one more species of the brazilian flora, until now not investigated. moreover, this study allowed the identification of three substances with antioxidant activity previously detected in this species.
Paradaemonia thelia (Jordan) e seus estágios imaturos (Lepidoptera, Saturniidae, Arsenurinae)
Furtado, Eurides;Campos-Neto, Fernando Corrêa;
Revista Brasileira de Zoologia , 2005, DOI: 10.1590/S0101-81752005000100001
Abstract: data on immature stages, the behavior and the range of paradaemonia thelia (jordan, 1922) are presented. the solitary larva feed on chrysophyllum marginatum (hook. & arn.) radlk. (sapotaceae), its natural hostplant. isolated ovae are deposited on dorsal surface of mature leaves. larval development required 18 days; the pupal stage lasted 32-37 days. adults, ovae, larvae and pupa are illustrated in color.
MORPHOLOGY OF EMBRYOS AND SEEDLINGS OF WOODY SPECIES NORTHEASTERN ARGENTINA MORFOLOGíA DE EMBRIONES Y PLáNTULAS DE ESPECIES LE OSAS DEL NORDESTE ARGENTINO
María C Franceschini
Bonplandia , 2010,
Abstract: In this paper embryos and seedlings of six native woody species of Northeast of Argentina are studied: Chrysophyllum marginatum (Hook. et Arn.) Radlk. subsp. marginatum (Sapotaceae), Eugenia uniflora L., Hexachlamys edulis (O. Berg) Kausel et D. Legrand (Myrtaceae), Polygala albicans (A.W. Benn.) Grondona (Polygalaceae), Sapium haematospermun Müll. Arg. and Sebastiania brasiliensis Spreng. (Euphorbiaceae). Descriptions and illustrations of seeds, embryos, germination and seedlings are given En este documento se estudian embriones y plántulas de seis especies le osas nativas del nordeste de Argentina: Chrysophyllum marginatum (Hook. et Arn.) Radlk. subsp. marginatum (Sapotaceae), Eugenia uniflora L., edulis Hexachlamys (O. Berg) Kausel et D. Legrand (Myrtaceae), Polygala albicans (AW Benn.) Grondona (Polygalaceae), Sapium haematospermun Müll. Arg. y Sebastiania brasiliensis Spreng. (Euphorbiaceae). Comprende las descripciones e ilustraciones de las semillas, embriones, germinación y plántulas
Estudos preliminares da biologia floral de Chrysophyllum Auratum Miq.(sapotaceae) em Piracicaba, estado de S?o Paulo
Corrales, Francisco Miguel;Mantovani, Waldir;Catharino, Eduardo Luis M.;
Anais da Escola Superior de Agricultura Luiz de Queiroz , 1986, DOI: 10.1590/S0071-12761986000100009
Abstract: in order to contribute to the knowledge of the floral biology of chrysophyllum auratum miq. (sapotaceae) two cultivated specimens was analised in horticulture section of escola superior de agricultura "luiz de queiroz", piracicaba - sp. the survey included floral phenology and the establishment of reproductive systern. the flowers had vespertine andnocturnal anthesis and protandrie. one spicemen exhibited a phenological precocity. the pollination syndrome was miofily but no biological pollinator agents was observed. no conclusion about the reproductive system were possible with the tests.
Desenvolvimento da semente de Chrysophyllum gonocarpum (MART. & EICHL.) ENGL. (SAPOTACEAE)
Felippi, Marciele;Grossi, Fernando;Nogueira, Antonio Carlos;Mo?o, Maria Cecília De Chiara;
Revista Brasileira de Sementes , 2010, DOI: 10.1590/S0101-31222010000100011
Abstract: the object of this study was to describe the embryo, endosperm and integument development of chrysophyllum gonocarpum (mart. & eichl.) engl. seed. the ovule is hemitropous, with embryo development being of the caryophyllad type and the endosperm of the nuclear type. the mature embryo presents a short and cylindrical hypocotyl-radicle axis with foliaceous cotyledons. the mature seed stores aleurone grains and lipids in the cotyledons and in the remaining endosperm cells. the exotesta is composed of several layers of sclerenchymatous cells, also present in the hilum region. this exotesta feature is registered for the first time in chrysophyllum seeds and might have ecological and taxonomic implications.
Fenologia de Chrysophyllum gonocarpum (Mart. & Eichler) Engl. (Sapotaceae) em floresta semidecídua do Sul do Brasil
Bianchini, Edmilson;Pimenta, José Antonio;Santos, Flavio Antonio Ma?s dos;
Brazilian Journal of Botany , 2006, DOI: 10.1590/S0100-84042006000400009
Abstract: phenological patterns of chrysophyllum gonocarpum (mart. & eichler) engl. were investigated from may 1995 to december 1997 in a tropical semideciduous forest in southern brazil (23o27' s and 51o15' w). forty trees were monthly observed for changes on leaf fall and flushing, flowering, and fruiting. the leaf fall occurred in the dry period while leaf flushing, flowering and dispersion occurred at the beginning of the wet season. except fruiting, all phenophases were highly synchronized. the majority of individuals flowered annually, although they did not fruit annually. leaf fall was negatively associated with rainfall and temperature and flowering was positively associated with daylength.
Keratoacanthoma centrifugum marginatum  [cached]
Rastogi S,Kumar Pramod,Swarup K,Mohan Lalit
Indian Journal of Dermatology, Venereology and Leprology , 1995,
Abstract: A case of 38-year-old male with multiple keratoacanthoma centrifugum marginatum is reported. Clinical presentation was in the form of multiple, firm, non-tender skin coloured nodules of variable sizes. Diagnosis was confirmed by the histopathological examination. The case is being reported because it is a rare variant of keratoacanthoma
Keratoacanthoma Centrifugum Marginatum with Atypical Scar  [PDF]
Falguni Nag,Projna Biswas,Joydeep Singha,Arghyaprasun Ghosh,Trupti V. Surana
Case Reports in Dermatological Medicine , 2012, DOI: 10.1155/2012/158158
Abstract: Keratoacanthoma centrifugum marginatum (KCM) is a rare variant of keratoacanthoma (KA). It is characterized by a progressive peripheral expansion and central healing leaving atrophic scar. It is sometimes confused with squamous cell carcinoma (SCC) both clinically and histopathologically. We here report a case of KCM over the extensor aspect of the right forearm in a 57-year-old man with an abnormal looking scar. 1. Introduction Keratoacanthoma (KA) is a rare benign epidermal tumour, usually diagnosed clinically, and histopathological examination confirms the diagnosis. Most lesions are classical solitary but few unusual rare variants are also described. Keratoacanthoma centrifugum marginatum (KCM) is a rare variant of solitary KA with a clinical course of centrifugal expansion and central restitution or scarring [1]. The cause is unknown but proposed association with UV radiation, chemical exposure, and viral infection has been reported [2]. We hereby report a case of KCM with atypical scar for its rarity and highlight its relationship with SCC. 2. Case Report A 57-year-old male, a farmer by profession, presented in the dermatology OPD with a large plaque extending from below the right elbow onto the extensor aspect of the forearm. The lesion started as an asymptomatic nodule on a normal looking skin and attained its present state over the past 1 year by peripheral spreading and central healing. Nodular ulcerated margin was seen on the proximal and distal aspects in an arciform manner (Figure 1). The whitish intervening scar was traversed in its entire width by narrow strips of a normal looking skin. He was also treated with antitubercular medications from outside without any benefit. General survey, systemic examination, and routine laboratory investigations did not reveal any abnormality. Chest X-ray was normal. The Mantoux test and the screening for HIV were negative. A provisional diagnosis of KCM was made. Histopathological examination of a skin biopsy specimen from the raised margin revealed a huge pitcher like crater extending symmetrically across the upper dermis surrounded by epidermis on all sides (Figure 2). A keratin plug is seen at the bottom of the crater with a dense mixed inflammatory cell infiltrate in the dermis immediately adjacent to the crater (Figure 3). No cellular atypia or involvement of the deep dermis is seen. Based on the above clinical and histopathological findings diagnosis of KCM was made. The patient was referred to the plastic surgery department for excision and grafting. Figure 1: A plaque with nodular ulcerated
Bio-guided Isolation of Antioxidant Compounds from Chrysophyllum perpulchrum, a Plant Used in the Ivory Coast Pharmacopeia  [PDF]
Bidie Alain Philippe,Ndjoko Karine,Attioua Koffi Barthélemy,Zirihi Guédé Noél,N’guessan Jean David,Djaman Allico Joseph,Kurt Hosttetmann
Molecules , 2010, DOI: 10.3390/molecules15096386
Abstract: Chrysophyllum perpulchrum (Sapotaceae) is used in the traditional Ivory Coast pharmacopeia to cure fevers. The extract of C. perpulchrum used for this study was the powdered form obtained from the maceration of the dried plant bark in 96% methanol, followed by evaporation to dryness. In the present study, the antioxidative and radical-scavenging activities of the methanolic extract were studied with three standard biological tests: DPPH reduction, ferric thiocyanate (FTC) lipidic peroxidation inhibition and thiobarbituric acid reacting substances (TBARS). Gallic acid and quercetin were used as references. The total amount of phenolic compounds in the extract was determined by ultraviolet (UV) spectrometry and calculated as gallic acid equivalents. Catechin and two dimeric procyanidins were found to be the compounds responsible for the activities. They were chemically dereplicated in the extract by LC-MS. For quantitation purposes, they were isolated by successive chromatographic methods and characterized by mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectrometry. The quantities of these compounds in C. perpulchrum were 5.4% for catechin (P1), and 5.6 and 9.2% for dimers (compounds 2 (P2) and 3 (P3)), respectively. They displayed antioxidant activity with IC50 values of 2.50 ± 0.15 μg/mL (P1), 2.10 ± 0.2 μg/mL (P2) and 2.10 ± 0.1 μg/mL (P3). The total extract, the active fractions and the pure compounds inhibited the lipid peroxidation by the FTC method and the TBARS method in the range of 60%. These values were comparable to those seen for quercetin.
Transovarial Transmission of Babesia Ovis by Rhipicephalus Sanguineus and Hyalomma Marginatum  [PDF]
GhR Razmi,E Nouroozi
Iranian Journal of Parasitology , 2010,
Abstract: Background: Rhipicephalus sanguineus and Hyalomma marginatum are the most common spe-cies in sheep herds in Northeast of Iran. There is preliminary evidence that these species may be the vectors of Babesia ovis in Iran. We carried out two experiments in Mashhad area, Khorasan Razavi Province to determine whether B. ovis could be transovarially transmitted by R. san-guineus and H. marginatum.Methods: In experiment 1, adults of laboratory reared H. marginatum and R.sanguineus were infected with B. ovis isolated from naturally infected sheep in Mashhad area by feeding the ticks on the sheep inoculated intravenously by infected blood samples. The inoculated sheep showed clinical signs with parasitaemia while the adult ticks were engorging on them. The engorged fe-males were collected and kept at 28°C and 85% relative humidity in incubator. Then, larval, nym-phal and adult stages derived from engorged females were used to infest the clean sheep. In experiment 2, two splenectomized sheep were infested only with the same adult ticks of two spe-cies.Results: Examination of smears and PCR of blood samples to detect of B. ovis in infested sheep in two experiments were negative.Conclusion: It seems that R. sanguineus and H. marginatum can not transovarially transmit B. ovis in sheep.
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