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1.
Sci Rep ; 14(1): 1602, 2024 01 18.
Artigo em Inglês | MEDLINE | ID: mdl-38238355

RESUMO

Skin disorders affect millions of people all over the world. There are limited options to treat dermal illnesses such as vitiligo, psoriasis, and atopic dermatitis (eczema). Central American ferns are a potential source of bioactive metabolites against those diseases. Currently, Polypodium leucotomos Poir. is the only one being commercially utilized for this purpose. In this work, we evaluated the concentration of the skin bioactive compounds: quinic and chlorogenic acid, in the extract of 20 wild ferns from Costa Rica. We also evaluated the antimicrobial capabilities of the crude extracts of wild ferns and the sun protection factor (SPF) of the extracts. We found 19 out of 20 have either an important concentration of the compounds mentioned above or antimicrobial properties. Also, most samples result in higher SPF than P. aureum's rhizome. We also have studied the fern acclimatization, at different shading conditions, finding a significant influence of the culturing conditions on metabolite production. After acclimatization. So far, we demonstrate that various ferns included in this study are a potential source of treatments for skin conditions.


Assuntos
Gleiquênias , Polypodiaceae , Polypodium , Vitiligo , Humanos , Antibacterianos/farmacologia , Costa Rica , Extratos Vegetais/farmacologia
2.
Rev. biol. trop ; 54(3): 1057-1060, sept. 2006. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-492285

RESUMO

Danaea tuomistoana A. Rojas (Marattiaceae) is described and illustrated as a new species endemic to Costa Rica; it differs from D. crispa Endres et Richb. by a truncate blade, and by the pinnae, which are 2/5-1/2 incised, cuneated at the base and with a flat margin. The range of D. erecta H. Tuomisto & R.C. Moran in Costa Rica is expanded with a new locality in Puntarenas (8 degrees 57'15[quot ] N-82 degrees 50'1[quot ] W, 1,500-1,580 masl).


Se describe e ilustra una especie nueva endémica de helecho de Costa Rica, Danaea tuomistoana A. Rojas (Marattiaceae), caracterizada porque las pinnas son incisas 2/5-1/2 entre la costa y el margen, y son cuneadas en la base. Se amplia el ámbito geográfico de D. erecta H. Tuomisto & R.C. Moran a Puntarenas, Costa Rica.


Assuntos
Gleiquênias/classificação , Costa Rica , Gleiquênias/anatomia & histologia , Especificidade da Espécie
3.
Rev. biol. trop ; 54(3): 1061-1066, sept. 2006. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-492284

RESUMO

The new fern species Pteris herrerae A. Rojas & M. Palacios, endemic to Costa Rica, is described. It differs from P. decurrens C. Presl in basal segments reduced to 1/5-1/2 of the next segment (vs. 2/3-3/4), basal pinnae not bifurcated (vs. bifurcated), pinnae apex mucronate (vs. acuminate) and segment apex undulate (vs. dentate). It differs from Pteris consanguinea in the elliptic pinnae (vs. oblong), two segments reduced on the base (vs. lack), segments entire to undulate (vs. dentate), basal pinnae without basiscopic lobes (vs. with basiscopic lobes) and segment apex entire to undulate (vs. dentate).


Se describe Pteris herrerae A. Rojas & M. Palacios, endémica de Costa Rica. Esta es diferente de P. decurrens C. Presl por segmentos basales reducidos a 1/5-1/2 del tamaño de los siguientes (vs. 2/3-3/4), pinnas basales no bifurcadas (vs. bifurcadas), ápice de las pinnas mucronado (vs. acuminado) y ápice de los segmentos ondulado (vs. dentado). También es diferente de Pteris consanguinea Mett. ex Kuhn por pinnas deltado-lanceoladas (vs. oblongas), con un par de segmentos reducidos en la base (vs. sin ellos), pinnas basales sin lóbulos basicópicos alargados (vs. con lóbulos basiscópicos) y segmentos enteros a ondulados (vs. dentados).


Assuntos
Pteris/classificação , Costa Rica , Pteris/anatomia & histologia , Especificidade da Espécie
4.
Rev Biol Trop ; 54(3): 1057-60, 2006 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-18491647

RESUMO

Danaea tuomistoana A. Rojas (Marattiaceae) is described and illustrated as a new species endemic to Costa Rica; it differs from D. crispa Endres et Richb. by a truncate blade, and by the pinnae, which are 2/5-1/2 incised, cuneated at the base and with a flat margin. The range of D. erecta H. Tuomisto & R.C. Moran in Costa Rica is expanded with a new locality in Puntarenas (8 degrees 57'15" N-82 degrees 50'1" W, 1,500-1,580 masl).


Assuntos
Gleiquênias/classificação , Costa Rica , Gleiquênias/anatomia & histologia , Especificidade da Espécie
5.
Rev Biol Trop ; 54(3): 1061-6, 2006 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-18491648

RESUMO

The new fern species Pteris herrerae A. Rojas & M. Palacios, endemic to Costa Rica, is described. It differs from P. decurrens C. Presl in basal segments reduced to 1/5-1/2 of the next segment (vs. 2/3-3/4), basal pinnae not bifurcated (vs. bifurcated), pinnae apex mucronate (vs. acuminate) and segment apex undulate (vs. dentate). It differs from Pteris consanguinea in the elliptic pinnae (vs. oblong), two segments reduced on the base (vs. lack), segments entire to undulate (vs. dentate), basal pinnae without basiscopic lobes (vs. with basiscopic lobes) and segment apex entire to undulate (vs. dentate).


Assuntos
Pteris/classificação , Costa Rica , Pteris/anatomia & histologia , Especificidade da Espécie
6.
Rev. biol. trop ; 51(1): 1-31, mar. 2003. ilus
Artigo em Inglês | LILACS | ID: lil-365951

RESUMO

Twelve new species are described in the taxonomically difficult Elaphoglossum (sect. Elaphoglossum): Elaphoglossum angustifrons A. Rojas, E. delgadilloanum A. Rojas, E. ellipticifolium A. Rojas, E. incognitum A. Rojas, E. mesoamericanum A. Rojas, E. nicaraguese A. Rojas, E. polypodium A. Rojas, E. tejeroanum A. Rojas, E. reptans A. Rojas, E. terrestre A. Rojas, E. variabile A. Rojas and E. zavale A. Rojas. Also, E. latifolium (Sw.) J. Sm., E. sartorii (Liebm.) Mickel and E. viride (E. Fourn.) C. Chr. are amended, E. andicola (Fée) T. Moore and E. sporadolepis (Kunze ex Kuhn) T. Moore are reported.


Assuntos
Gleiquênias , América Central , Gleiquênias , México
7.
Rev. biol. trop ; 51(1): 33-38, mar. 2003. ilus
Artigo em Inglês | LILACS | ID: lil-365952

RESUMO

In Elaphoglossum sect. Polytrichia subsect. Hybrida six new species are described: E. angustioblongum A. Rojas, E. baquianorum A. Rojas, E. cotoi A. Rojas, E. jinoteganum A. Rojas, E. neeanum A. Rojas and E. silencioanum A. Rojas. New combination is made for Elaphoglossum mexicanum (E. Fourn.) A. Rojas. Two species are reported: E. barbatum (H. Karst.) Hieron. and E. scolopendrifolium (Raddi) J. Sm. Two species are redefined: E. erinaceum (Fée) T. Moore and E. tambillense (Hook.) T. Moore. E. pallidum (Baker ex Jenman) C. Chr. is eliminated for Mexico and Central America. Of the new species only E. neeanum is present outside of the region. A key is given to those species in Mexico and Central America.


Assuntos
Gleiquênias , América Central , Gleiquênias , México
8.
Rev Biol Trop ; 51(1): 1-31, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15162678

RESUMO

Twelve new species are described in the taxonomically difficult Elaphoglossum (sect. Elaphoglossum): Elaphoglossum angustifrons A. Rojas, E. delgadilloanum A. Rojas, E. ellipticifolium A. Rojas, E. incognitum A. Rojas, E. mesoamericanum A. Rojas, E. nicaraguese A. Rojas, E. polypodium A. Rojas, E. tejeroanum A. Rojas, E. reptans A. Rojas, E. terrestre A. Rojas, E. variabile A. Rojas and E. zavale A. Rojas. Also, E. latifolium (Sw.) J. Sm., E. sartorii (Liebm.) Mickel and E. viride (E. Fourn.) C. Chr. are amended, E. andicola (Fée) T. Moore and E. sporadolepis (Kunze ex Kuhn) T. Moore are reported.


Assuntos
Gleiquênias/classificação , América Central , Gleiquênias/anatomia & histologia , México
9.
Rev Biol Trop ; 51(1): 33-48, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15162679

RESUMO

In Elaphoglossum sect. Polytrichia subsect. Hybrida six new species are described: E. angustioblongum A. Rojas, E. baquianorum A. Rojas, E. cotoi A. Rojas, E. jinoteganum A. Rojas, E. neeanum A. Rojas and E. silencioanum A. Rojas. New combination is made for Elaphoglossum mexicanum (E. Fourn.) A. Rojas. Two species are reported: E. barbatum (H. Karst.) Hieron. and E. scolopendrifolium (Raddi) J. Sm. Two species are redefined: E. erinaceum (Fée) T. Moore and E. tambillense (Hook.) T. Moore. E. pallidum (Baker ex Jenman) C. Chr. is eliminated for Mexico and Central America. Of the new species only E. neeanum is present outside of the region. A key is given to those species in Mexico and Central America.


Assuntos
Gleiquênias/classificação , América Central , Gleiquênias/anatomia & histologia , México
10.
Rev. biol. trop ; 50(3/4): 969-1006, sept.-dic. 2002. ilus, tab
Artigo em Inglês | LILACS | ID: lil-350081

RESUMO

More new species, new combinations and new distributions are made in the large and difficult genus Elaphoglossum in Neotropic. Ten new species are described, this are: Elaphoglossum adrianae A. Rojas, E. betancuri A. Rojas, E. caridadae A. Rojas, E. glabromarginatum A. Rojas, E. kessleri A. Rojas, E. macdougalii A. Rojas, E. paramicola A. Rojas, E. paxense A. Rojas, E. pseudoherminieri A. Rojas and E. solomonii A. Rojas. Three species are combined, this are: Elaphoglossum beitelii (Mickel) A. Rojas, E. curvans (Kunze) A. Rojas and E. eutecnum (Mickel) A. Rojas. Finally, 86 species are reported from other countries and some species names are synonymized


Assuntos
Muco do Colo Uterino , Costa Rica , Demografia , Clima Tropical
11.
Rev. biol. trop ; 50(3/4): 1007-1012, sept.-dic. 2002. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-350083

RESUMO

Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) is herein described and illustrated as a new species endemic to Mexico. Its belongs to the group of winged adaxial secondary costae species but it differs by the combination of characters as smaller fronds, deltate pinnules and lobed segment apex


Assuntos
Desnaturação de Ácido Nucleico , México
12.
Rev Biol Trop ; 50(3-4): 969-1006, 2002.
Artigo em Inglês | MEDLINE | ID: mdl-12947583

RESUMO

More new species, new combinations and new distributions are made in the large and difficult genus Elaphoglossum in Neotropic. Ten new species are described, this are: Elaphoglossum adrianae A. Rojas, E. betancuri A. Rojas, E. caridadae A. Rojas, E. glabromarginatum A. Rojas, E. kessleri A. Rojas, E. macdougalii A. Rojas, E. paramicola A. Rojas, E. paxense A. Rojas, E. pseudoherminieri A. Rojas and E. solomonii A. Rojas. Three species are combined, this are: Elaphoglossum beitelii (Mickel) A. Rojas, E. curvans (Kunze) A. Rojas and E. eutecnum (Mickel) A. Rojas. Finally, 86 species are reported from other countries and some species names are synonymized.


Assuntos
Ecossistema , Gleiquênias/classificação , Costa Rica , Gleiquênias/anatomia & histologia , Clima Tropical
13.
Rev Biol Trop ; 50(3-4): 1007-12, 2002.
Artigo em Espanhol | MEDLINE | ID: mdl-12947584

RESUMO

Dennstaedtia gracilis A. Rojas et Tejero (Dennstaedtiaceae) is herein described and illustrated as a new species endemic to Mexico. Its belongs to the group of winged adaxial secondary costae species but it differs by the combination of characters as smaller fronds, deltate pinnules and lobed segment apex.


Assuntos
Dennstaedtiaceae/classificação , Dennstaedtiaceae/anatomia & histologia , México
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