Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro

Rio de Janeiro, Brazil

Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro

Rio de Janeiro, Brazil

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Pederneiras L.C.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro | Romaniuc-Neto S.,Institute Botanica | Mansano V.D.F.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro
Systematic Botany | Year: 2017

Ficus latipedunculata is a new species of Ficus sect. Pharmacosycea, occurring in the Brazilian Atlantic Forest, here described and illustrated. The new species shows similarities with F. adhadotifolia, F. ernanii, and F. vermifuga but differs mainly by the shape of the peduncle and basal bracts. © Copyright 2017 by the American Society of Plant Taxonomists.


PubMed | Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro, Federal University of Juiz de fora and Federal University of Viçosa
Type: Journal Article | Journal: Brazilian journal of biology = Revista brasleira de biologia | Year: 2016

This study aimed to evaluate the variation in the levels of proline, oxidative metabolism and photosynthetic pigments in plants of Pitcairnia encholirioides grown in vitro under different conditions and after acclimatization. The analyses were performed after 150 days of in vitro cultivation in MS media supplemented with 10 M GA3 or 0.2 M NAA, sucrose at 15 or 30 g L-1, in test tubes which allowed gas exchange or in a hermetically sealed system, and 180 days after acclimatization. The in vitro maintenance in hermetically sealed flasks, with GA3 and 15 g L-1 sucrose had adverse metabolic effects, which was demonstrated by the lower proline and photosynthetic pigments accumulation and by the increase in antioxidant enzymes activities. After acclimatization, differences for proline and photosynthetic pigments were no longer found and the enzymatic activities ranged unevenly. The results suggest that the in vitro cultivation in media with 0.2 M NAA and 30 g L-1 sucrose, in test tubes capped with closures which allowed gas exchange, is more suitable for micropropagation of P. encholirioides, providing a prolonged maintenance of in vitro cultures and plantlets with superior quality for ex vitro development.


PubMed | Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro, Federal University of Juiz de fora and Federal University of Viçosa
Type: | Journal: Brazilian journal of biology = Revista brasleira de biologia | Year: 2016

This study aimed to evaluate the variation in the levels of proline, oxidative metabolism and photosynthetic pigments in plants of Pitcairnia encholirioides grown in vitro under different conditions and after acclimatization. The analyses were performed after 150 days of in vitro cultivation in MS media supplemented with 10 M GA3 or 0.2 M NAA, sucrose at 15 or 30 g L-1, in test tubes which allowed gas exchange or in a hermetically sealed system, and 180 days after acclimatization. The in vitro maintenance in hermetically sealed flasks, with GA3 and 15 g L-1 sucrose had adverse metabolic effects, which was demonstrated by the lower proline and photosynthetic pigments accumulation and by the increase in antioxidant enzymes activities. After acclimatization, differences for proline and photosynthetic pigments were no longer found and the enzymatic activities ranged unevenly. The results suggest that the in vitro cultivation in media with 0.2 M NAA and 30 g L-1 sucrose, in test tubes capped with closures which allowed gas exchange, is more suitable for micropropagation of P. encholirioides, providing a prolonged maintenance of in vitro cultures and plantlets with superior quality for ex vitro development.


Temponi L.G.,West Parana State University | Nadruz Coelho M.A.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro
Phytotaxa | Year: 2014

Two new species of Anthurium endemic to Rio de Janeiro, southeastern Brazil, are described. Anthurium cronembergerae and A. sakuraguianum occur in humid areas in the Atlantic Forest. Descriptions and illustrations are provided, together with commentary on geographic distribution, ecology, flowering and fruiting phenology and conservation status. Comparisons are made with other similar Brazilian species of Anthurium section Urospadix, to which the two new species are assigned. © 2014 Magnolia Press.


The occurrence of Alouatta guariba clamitans in the Itatiaia National Park (PNI) are considered rare. For over 70 years an epizootic outbreak of yellow fever almost caused the local extinction of this species and since then only one record by direct observation was obtained. In this study, records were obtained by direct observation of a group of four adults, one male and three females, and an infant in forest environment (ca. 1200m). One of the females presented anomaly in the coloration, characterized as leucism. A record of solitary adult male was held in high altitude grasslands (2450m). It is possible that the fault is related to the low density of the species, similar to that reported in other studies. The case record in high altitude, which can be considered the highest for primates in the country, suggests expanding the occurrence of possibilities and use area for the species. The monitoring of this species is to be continuously executed, including higher areas, in order to obtain accurate estimates of density. The performance of activities for its conservation, such as the translocation of individuals from surrounding areas to the PNI should be assessed, to avoid their possible local extinction. © 2016, Universidade Federal do Rio de Janeiro (UFRJ). All rights reserved.


Pederneiras L.C.,Institute Botanica | Pederneiras L.C.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro | Carauta J.P.P.,Federal University of Rio de Janeiro | Neto S.R.,Institute Botanica | de Freitas Mansano V.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro
Taxon | Year: 2015

The infrageneric nomenclature of Ficus, the largest genus in the Moraceae, is reviewed. We call attention to three overlooked subgeneric names, F. subg. Terega Raf., F. subg. Sycomorus Raf. and F. subg. Spherosuke Raf., and four sectional names, F. sect. Cordifoliae G.Don, F. sect. Pogonotrophe (Miq.) Miq., F. sect. Platyphyllae Mildbr. & Burret and F. sect. Urostigma (Endl.) Griseb., that have priority over other long-used subgeneric and sectional names. We also effect a new combination into Ficus based on Urostigma sect. Apiosycea Miq. In addition, we designate types for 6 generic and 17 infrageneric names. © International Association for Plant Taxonomy (IAPT) 2015.


Moura T.M.,University of Campinas | Lewis G.P.,Herbarium | Mansano V.F.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro | Tozzi A.M.G.A.,University of Campinas
Kew Bulletin | Year: 2013

Summary: Three new species of Mucuna from South America are described and illustrated. All present a morphological characteristic that is restricted to some neotropical species of this genus: a condensed primary inflorescence axis, with all the flowers closely inserted at the inflorescence apex. M. argentea occurs in Colombia, Ecuador and Peru, M. klitgaardiae in Ecuador and Peru, whilst M. cajamarca is endemic to Peru. These three new species highlight the diversity and high endemism of Mucuna in South America. © 2012 The Board of Trustees of the Royal Botanic Gardens, Kew.


Pederneiras L.C.,Institute Botanica | Pederneiras L.C.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro | Neto S.R.,Institute Botanica
Systematic Botany | Year: 2015

A new species of Ficus sect. Pharmacosycea, occurring in the Venezuelan Amazon, is here described and illustrated as Ficus crateriformis Pederneiras and Romaniuc. The new species shows similarities with F. carvajalii, F. macrosyce and F. pulchella although it is characterized mainly by the crateriform apex of the syconium, and leaf blades 12-19 cm long with 19-23 pairs of lateral veins. Discussions on taxonomy and geographic distribution are provided, as well as an identification key to the species in Venezuela. © Copyright 2015 by the American Society of Plant Taxonomists.


Pederneiras L.C.,Institute Botanica | Romaniuc-Neto S.,Institute Botanica | Mansano V.D.F.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro
Systematic Botany | Year: 2015

Ficus subg. Pharmacosycea sect. Pharmacosycea has never been comprehensively sampled in previous phylogenetic analyses of Ficus. The published phylogenies have focused mostly on the study of the whole genus, with a sampling of only a few taxa fromthis group. Our study represents the first molecular phylogenetic analysis focusing on this section, including 27 terminals representing 20 of its 35 species and 31 other species of Ficus. The analyses of three nuclear DNA sequences (ITS, G3pdh, and ETS) add considerably to our knowledge of the phylogenetic relationships within this peculiar section, and lead to proposed taxonomicmodifications. The monophyly of this section, aswell as its position as sister to the rest of Ficus, is supported by our maximum likelihood and Bayesian analyses. As previously circumscribed, F. subsect. Bergianae is monophyletic, and F. subsect. Petenenses is paraphyletic. A third well-supported clade is sister to the Petenenses-Bergianae clade, characterized by an hemiepiphyc life form. We describe this new subsection here as Ficus subsect. Carautaea. © Copyright 2015 by the American Society of Plant Taxonomists.


Moura T.M.,University of Campinas | Torke B.M.,New York Botanical Garden | Mansano V.F.,Institute Pesquisa Do Jardim Botanico Do Rio Of Janeiro | Tozzi A.M.G.A.,University of Campinas
Kew Bulletin | Year: 2012

Summary: Herbarium-based studies of Mucuna lead us to make a new combination for a Hawaiian taxon. Mucuna persericea, formerly M. sloanei var. persericea, is an endangered species according to IUCN criteria. It is narrowly endemic to the island of Maui. With its recognition at the species level, we conclude that the genus is represented in Hawaii by three native species, plus several alien species, which are locally cultivated and potentially naturalised. We provide a key to aid in the identification of both the native and cultivated taxa. © 2012 The Board of Trustees of the Royal Botanic Gardens, Kew.

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