Rosani C.O. Arruda

• Professor
• Research Associate at Federal University of Mato Grosso do Sul

This study evaluated the chemical composition of epicuticular wax and micromorphology of Rhizophora mangle L. (red mangrove) leaves collected in mangroves around an urban bay in Rio de Janeiro State, Brazil. Chemical results indicate that epicuticular waxes contain taraxerol, β-amyrin, lupeol and triterpenes acetate as the main compounds. Samples f...

Taxonomic and phylogenetic studies of Machaerium species have demonstrated overlapping morphological characters that delimit sections and/or clades, such as width, length, and overall shape of the leaflets and venation pattern. We conducted a comparative analysis of the morphoanatomical characters of Machaerium leaflets. We aimed to evaluate the us...

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4934318

Ocotea velloziana (Lauraceae) is a species with cryptic dioecy. The staminate flowers of this species have a pistillode and pistillate flowers have staminodes, which often makes it difficult to describe circumscribe the reproductive system correctly. Therefore, to understand the evolution of dioecy in this species, the morphology of both floral mor...

Bacopa gratioloides (Cham.) Chodat & Hassl., Plantaginaceae, is an aquatic species underexplored and found in the hostile biome Chaco, Brazil. In this work, a new sesquiterpene was obtained, which is accumulated in high levels in B. gratioloides volatile oil when extracted via an improved and eco-friendly hydrodistillation method (16 h—4 h/day). Ba...

Halophytes are characterized by their ability to survive in environments with high salinity, and many of these species eliminate excess salts through secretory structures, such as salt glands or bladders. Rhizophora mangle, however, is a halophyte that does not have specialized structures for eliminating salts, but it does have lenticels located on...

Species in dry environments may adjust their anatomical and physiological behaviors by adopting safer or more efficient strategies. Thus, species distributed across a water availability gradient may possess different phenotypes depending on the specific environmental conditions to which they are subjected. Leaf and vascular tissues are plastic and...

In ecosystems that are potentially exposed to high levels of metal pollution, rapid and simple detection techniques that use bioindicator plants can be useful. In this study, leaves of Rhizophora mangle were analyzed from mangrove forests close to two industrial centers subjected to high levels of metal pollution - Pedra de Guaratiba with lower and...

Species in dry environments may adjust their morphological and physiological behaviors by adopting safer or more efficient strategies. Thus, species distributed across a water availability gradient may possess different phenotypes depending on the specific environmental conditions to which they are subjected. Leaf and vascular tissues are plastic a...

Paullinia é um gênero monofilético de lianas com distribuição neotropical, abrangendo aproximadamente 220 espécies. No Brasil, existem 102 espécies ocorrendo principalmente nos domínios fitogeográficos da Mata Atlântica e Amazônia. As espécies deste gênero possuem diversos usos como psicotrópicos, bactericidas, antioxidantes, venenos de peixes, est...

The Pterocarpus clade includes 23 genera previously attributed to different Fabaceae tribes. The recent rearrangements of many genera in the clade do not recognize morphological synapomorphies. This study aimed to identify new synapomorphies for the Pterocarpus clade, to identify characters supporting inter-generic relationships currently resolved...

Brazilian mangroves have been severely impacted by metallurgical, petrochemical, pyrometallurgical smelters and other industrial activities. In Rio de Janeiro, mangroves are part of the Atlantic Rainforest now under the stress of high levels of industrial waste. Therefore, this work aimed to detect potentially toxic elements (PTEs) by evaluating th...

Copernicia alba (Arecaceae) is a palm tree regionally known as carandá that forms large populations and produces abundant fruits, an important food source for the local fauna in Brazilian wetlands. The fruits present morphological variations regarding color, shape and dimensions. In this study fruits of different shapes were collected and processed...

The mangroves of Marambaia, area bathed by the Bay of Sepetiba, is located in an area protected by the Brazilian Army and has a remarkable level of environmental protection among ecosystems around the bay. Leaf content of minerals and potentially toxic elements in a typical species of mangrove of Rhizophora mangle L. were analyzed from samples coll...

This study aimed to assess the influence of cropping systems (conventional and organic) and hops varieties ('Cascade', 'Chinook', 'Columbus', 'Hallertau Mittelfrüh', and 'Nugget') on morphological and anatomical aspects, as well as the contents of essential oil and phenolic compounds of hops inflorescences. Thus, morphological description and cone...

Annually, the Pantanal flood pulse induces the development of several plant structural responses, such as aerenchyma formation and differential lignification rates. Although such responses represent advantages for plants to thrive in flooded and non-flooded environments, the degree of variation often imposes limitations in identifying and establish...

Fica perto do mar, está quase sempre alagado, é lamacento e tem um cheirinho daqueles que dá vontade de colocar um pregador no nariz! Um lugar assim pode ser interessante? Pode apostar que sim! O manguezal têm tem plantas com raízes que crescem para cima, folhas que eliminam sal, tecidos que acumulam ar e, além de tudo isso, é considerado um berçár...

The secretory structures of Alismataceae have been described as secretory ducts, laticifer ducts, laticifer canals or schizogenous ducts. However, these terms are not found in the specialized literature, and ontogenetic analyses for the exact classification of these structures are missing. Accordingly, more studies regarding the secretory structure...

O hábito de realizar uma boa higiene pessoal é iessencial para a qualidade de vida, pois auxilia na prevenção de doenças e no aumento da autoestima do indivíduo. Desse modo, objetivou-se sensibilizar crianças e adolescentes em risco social sobre a importância da lavagem das mãos para prevenção de doenças, principalmente em tempos de pandemia da COV...

Fire is common in seasonally dry areas in many parts of the world, and its effects on vegetation in these areas have been well studied. In riparian forests of the Pantanal, where fuel accumulation (dead plants) in the dry season can be a substantial driver of fire occurrence, little is known about the role of bark traits to fire protection in woody...

Leaves of Laguncularia racemosa (L.) Gaertn. f. were collected from the following mangroves along Brazil’s southeastern Atlantic coast: Coroa Grande (CG), Pedra de Guaratiba (PG) and Marambaia (M). This work aimed to evaluate the presence of minerals by Energy Dispersive X-Ray Spectroscopy (EDS) and Inductively coupled plasma - optical emission spe...

The present work aims to extend the knowledge of the genus Vriesea Lindley, contributing data on the foliar anatomy of five species: Vriesea bituminosa Wawra, V. longiscapa Ule, V. triligulata Mez, V. gigantea Gaudich., and V. Josteriana L.B.Sm. Transverse and longitudinal cuts were made manually in fully expanded leaves. The usual histochemical te...

Aspidosperma (Apocynaceae) is composed of trees and shrubs; the genus includes 70 species, 42 of which occur in Brazil. The midwestern region has the second highest diversity, with 30 species, after the northern region, and Mato Grosso do Sul state has 15 species. This study provides macroscopic and microscopic wood features for ten species from A....

Calendar 2021 BRAZILIAN CHACO: a photographic manifest of biodiversity (Portuguese-English) Supplement of the homonymous book (https://doi.org/10.6084/m9.figshare.13262726.v3) produced by researchers of the Biosciences Institute of Universidade Federal de Mato Grosso do Sul, to disclose the Chaco's biodiversity, a biome not (yet) on the Brazilian...

20 posters in A3 format (420x297mm) with photographs from the eBook "Brazilian Chaco: a photographic manifest of biodiversity", by the same authors. Access data: https://doi.org/10.6084/m9.figshare.13262726.v3 Text in Portuguese with parallel translation in English. ISBN 978-65-00-18235-4 de Souza, Paulo Robson; Bagnatori Sartori, Ângela Lúcia; P...

BRAZILIAN CHACO: a photographic manifest of biodiversity Photographic, technical and scientific dissemination book in 9:16 format for reading on cell phones and others, and domestic printing (168 x 297 mm) for non-commercial purposes. With almost 700 copyright photos with short captions, it presents the main phytophysiognomies and components of the...

Croton L. (Euphorbiaceae) is the second largest genus of the Euphorbiaceae s.l. family, which is composed of about 1,200 taxa. Several species are widely used medicinally in various parts of the world to treat cancer, digestive problems, skin diseases, malaria, ulcers, and obesity. The leaves and stems are sold as dehydrated fragments, or in powder...

Imagine a little corner of Mato Grosso do Sul where you can see the South American Gran Chaco's biodiversity. Besides the little Brazilian bit, the Chaco extends to Bolivia, Paraguay and Argentina. It is not yet on the map of Brazilian biomes, but it exists! This calendar shows a small sample of the book Brazilian Chaco: a photographic manifest of...

The Pantanal is well-known for its landscape diversity, which is subject to annual inundation followed by periods of drought, during which it is prone to fire. Its flora is diverse, ranging from aquatic macrophytes to woody plants. In this chapter, we present an overview of the morphoanatomical adaptations of aquatic macrophytes and woody species i...

A categoria de uso tecnológico inclui espécies de plantas lenhosas conhecidas pelas pessoas para a confecção de utensílios domésticos, cabos de ferramentas e outros. Estudos etnobotânicos relacionados ao conhecimento local dessas espécies podem apoiar projetos de uso sustentável da biodiversidade. O objetivo deste trabalho foi analisar a riqueza de...

This study aimed to investigate the leaf epicuticular wax and the presence of heavy metals in leaves of Avicennia shaueriana, a halophyte found in Brazilian mangroves. We evaluated plants collected in mangroves located around Sepetiba Bay, Rio de Janeiro state. Heavy metals were analyzed by Energy Dispersive X-Ray Spectroscopy (EDS or EDX) and indu...

Climatic factors can influence the establishment and growth of wood species, but little is known about the effect of these factors on monodominant communities in wetlands. Therefore, we asked how climatic factors, such as ENSO (El Niño-Southern Oscillation), precipitation and flooding, influence growth and establishment of the dominant species Eryt...

Rhabdadenia (Apocynaceae) includes three species, Rhabdadenia biflora, Rhabdadenia madida, and Rhabdadenia ragonesei. These species are morphologically similar and phenotypically plastic in their vegetative organs and flower color, and despite recent taxonomic revisions of the genus, species identification and delimitation remains a challenge. In t...

Although the Mezilaurus clade has been retrieved in recent molecular phylogenetic studies as monophyletic in Lauraceae, unique shared vegetative or reproductive structural traits which could be used to circumscribe this clade or identify its members in the field have not be identified. Using light and scanning electron microscopy, we thus compared...

A poster about some tea flowers, history and curiosities. We used images from the internet. https://www.revistaabruxa.com/volume-2-2018

Projeto para divulgar resultados de ações de pesquisa e extensão, novidades e curiosidades botânicas.

A poster to tell some about history and tea flower uses. Images from the Internet. November 26 th, 2018.

Plants produce a wide range of secondary metabolites. Within a single species, chemotypes can be distinguished by the differences in the composition of the secondary metabolites. Herein, we evaluated Nectandra megapotamica (Spreng.) chemotypes and the balance of different classes of metabolites to verify how significant differences in plant metabol...

Histochemical analysis of S7 leaves. (A: dye Sudan IV; B: dye Nile Blue; cu: cuticle; ec: epidermal cell; id: idioblast; pp: palisade parenchyma; sp: spongy parenchma). (PDF)

Number of idioblasts between the adaxial and abaxial surfaces of Nectandra megapotamica. Sample S6: Chemotype A; Sample C1 and C3: Chemotype B. (PDF)

Identification and location of the studied material. (PDF)

Compounds identified by CG-MS of S6 and S7 after scraping method. The individuals S6 and S7 were identified as Nectandra megapotamica. S6A: analysis of adaxial surface; S6B: analysis of abaxial surface; S6IP: analysis of intact leaves; S7A: analysis of adaxial surface; S7B: analysis of abaxial surface; S7IP: analysis of intact leaves; n: number; RI...

SPME analysis of intact leaves and adaxial and abaxial surfaces of S7 by GC-MS. (*peak products of SPME fiber; cu: cuticle; ec: epidermal cell; id: idioblast; pp: palisade parenchyma; sp: spongy parenchyma; id: idioblast). (PDF)

Geographic distribution of Nectandra megapotamica analysed in the study. (MS: State of Mato Grosso do Sul; SP; State of São Paulo; C1-C3: Samples from Campo Grande city; M1: Samples from Maracajú city; P1 and P2: Samples from Ponta Porã city; S1-S7: Samples from São Paulo city. (PDF)

Idioblasts present on the adaxial and abaxial surfaces of S7 leaves. (dye: NADI; cu: cuticle; ec: epidermal cell; id: idioblast; pp: palisade parenchyma; sp: spongy parenchma). (PDF)

Four different configurations of α-bisabolol. (PDF)

Dipterygeae traditionally comprised the genera Dipteryx (12 species), Pterodon (three species) and Taralea (seven species), but Monopteryx (three species; originally in tribe Sophoreae) emerged in recent molecular phylogenetic studies as sister to the clade comprising Dipteryx, Pterodon and Taralea. This study aimed to evaluate anatomical vegetativ...

Some studies have reported the presence of leaf cork-warts in several families of plants; however, in Lauraceae, these structures have not been confirmed. Therefore, based on studies of leaf anatomy, we have herein documented the presence of leaf cork-warts in Mezilaurus species of Lauraceae. To accomplish this, we investigated fifteen species from...

Lauraceae is an important component of the floristic structure of great part of Brazilian ecosystems. Therefore, this study present a checklist of Lauraceae in Mato Grosso do Sul, based on national and foreign herbaria and collecting in several areas at state. In this survey, 27 species belonging to 10 genera: Aiouea Aubl., Aniba Aubl., Cassytha L....

The conservation and use of wild food plants should include local people in the decision-making process, and many countries have done so. However, interacting with local communities remains challenging by the lack of adequate methodology. This article aimed to present strategies and results of a university extension program developed in partnership...

After synonymization of Araujia and Morrenia (Asclepiadoideae, Apocynaceae), there are 12 Araujia spp., with the Chaco region, including Argentina, Bolivia, Brazil and Paraguay, as their centre of diversity. If recognized independently , neither genus is monophyletic, but consensus on this circumscription remains unclear. Therefore, to improve our...

Luziola comprises nine monoecious, aquatic species and has its center of diversity in South America. Due to the morphological similarities among Luziola species in the vegetative stage, the micromorphology and anatomy of the leaf blade of five Luziola species were studied to survey potentially useful features for taxon identification. Oryzoid silic...

Allagoptera arenaria (Arecaceae), commonly known as “guriri,” is a palm that occurs only along the sandy coastal environments of Brazil. This work carries out a thorough analysis of A. arenaria leaf anatomy, including histochemistry and micromorphology, with special emphasis on leaf epicuticular waxes. Several common features of palms were identifi...

While a number of papers have shown that subway systems have an impact on the air quality through the release of particulate matters, no information about the impact of such particles on tree attributes is available. Tree leaves from three different species from the exit side of a subway station in Rio de Janeiro, Brazil, were more asymmetrical tha...

fotos de Alpinia

Large elongated glands occur on Cercideae leaf surfaces. Leaves of Bauhinia (55 taxa, 53 species), Cercis (1 species), Phanera (1 species), Piliostigma (2 species), Schnella (19 species) and Tylosema (1 species) were observed to determine location and relative number of glands. They were only observed on the abaxial leaf surface of 42 Bauhinia taxa...

Abstract— In this contribution the rediscovery of the bromeliad Dyckia excelsa in Mato Grosso do Sul state, central-western Brazil, is reported. This species was first described based on a single individual from a particular collection in 1993 with no precise locality. Illustrations and a brief discussion on the leaf anatomy of the species are prov...

Phytobezoars are structures formed by the aggregation of primarily plant fibers in the digestive tract of ruminants, causing intestinal obstruction that can lead to the death of an animal. Information about the formation of these clusters is scarce. This study identified the main components of bovine phytobezoars and described the leaf anatomy of t...

OPEN ACCESS ARTICLE AVAILABLE AT https://doi.org/10.1093/aob/mcy025

This study aims to evaluate the anatomy of calli and their chemico-morphological characteristics after in vitro culture. Callus was induced from leaf explants of Rosmarinus officinalis derived from in vitro grown plants on media containing 2,4-dichlorophenoxyacetic acid (2,4D) and thidiazuron (TDZ) supplementation. Both capitate and peltate glandul...

ARTICLE AVAILABLE AT https://doi.org/10.1007/s00606-015-1260-8

Abstract— Vriesea is the second-largest genus of Bromeliaceae, with more than 280 species. Although the genus is traditionally circumscribed as a natural group, all phylogenetic analysis undertaken indicates its polyphyletic origin. Several groups of Vriesea species are difficult to define taxonomically based on morphological characters only, incl...

Rosmarinus officinalis is known for the production of volatile compounds used in medicinal and food preparations. Leaves of R. officinalis are densely covered with capitate and peltate glandular trichomes where biosynthesis of volatiles mainly occurs. This study aims to conduct a morphological assessment to identify anatomical characteristics of bo...

Podostemaceae is a family of eudicotyledonous rheophytes with unique morphology, sometimes resembling algae, lichens or bryophytes. This study evaluates the taxonomic value of silica-body morphology (presence, location, size, shape, ornamentation) in species representing the three subfamilies: Tristicha trifaria (Bory ex Willd.) Spreng. (Tristichoi...

Eugenia copacabanensis Kiaersk. (Myrtaceae) is restricted to salt marshes or restinga areas along the southeastern coast of Brazil. This work analyzes the leaf secretory structures and volatile compounds produced in E. copacabanensis plants collected in the Marambaia Restinga of Rio de Janeiro City. Simultaneous-distillation extraction (SDE), when...

The seasonality influence on the essential oil composition of trimestrially collected fresh leaves of Eugenia neonitida Sobral and Eugenia rotundifolia Casar. (Myrtaceae) was investigated, as well as the antioxidant activity of dried leaves essential oils, and the leaf histochemistry. Eugenia neonitida essential oil major compounds were bicyclogerm...

In this study, we investigated the leaf anatomy and the composition of volatiles in Myrrhinium atropurpureum var. atropurpureum endemic to Rio de Janeiro restingas. Particularly, leaf secretory structures were described using light microscopy, and histochemical tests were performed from fresh leaves to localize the secondary metabolites. To observe...

Eugenia rotundifolia Casar., Myrtaceae, occurs in the sandy coastal environments of Rio de Janeiro and Espírito Santo States. To the best of our knowledge, E. rotundifolia was not included in ethnobotanical and nor in pharmacological research, but its leaves are sold in a public market of Rio de Janeiro City as "abajurú", the common name for Chryso...

Plant leaves are commonly used in folk medicine and food industry. Their volatile composition is an important determinant in such applications. However, to properly assess the quality of volatiles, proper analytic tools must be utilised. Accordingly, the static headspace technique was used to evaluate the main volatiles emitted from in vitro-grown...

The present study deals with the leaf anatomy and leaf surface of Posoqueria acutifolia Mart., P. latifolia Mart., P. longiflora Aublet, P. macropus Mart., P. palustris (Rudge) Roem. and Posoqueria sp., collected in fragments of Atlantic rain forest, Rio de Janeiro, Brazil. The epicuticular wax may occur in the form of filaments, granules or crusts...

The present study deals with the leaf anatomy and leaf surface of Posoqueria acutifolia Mart., P. latifolia Mart., P. longiflora Aublet, P. macropus Mart., P. palustris (Rudge) Roem. and Posoqueria sp., collected in fragments of Atlantic rain forest, Rio de Janeiro, Brazil. The epicuticular wax may occur in the form of filaments, granules or crusts...

Alpinia zerumbet plantlets were cultured in vitro in MS medium supplemented with growth regulators, including IAA, TDZ and BAP. Using high performance liquid chromatography (HPLC), the production of rutin, kaempferol-3-O-glucuronide, and kaempferol-3-O-rutinoside was evaluated, based on leaf hydroalcoholic extracts of three-month-old plantlets. The...

The genus Quesnelia presently includes 18 species, which occur mainly near the east coast of Brazil from the states of Rio de Janeiro to Bahia. The genus has been divided into two subgenera, Quesnelia and Billbergiopsis. However, its generic and subgeneric delimitation is artificial: in several classifications proposed in the family, different inve...

RESUMO O presente trabalho aborda a anatomia foliar de Blutaparon portulacoides (A. St.-Hil.) Mears. (Amaranthaceae), Ipomoea pes-caprae (L.) R. Br. e I. imperati (Vahl) Griseb. (Convolvulaceae), Canavalia rosea (Sw.) DC. e Sophora tomentosa L. (Leguminosae), Sporobolus virginicus (L.) Kunth (Poaceae) e Miegia maritima (Aubl.) Willd. (Cyperaceae)....

Thispaperproposesanewinterpretationforprimarythickeninginmonocotyledons.Theanatomyofthevegetativeorgansofthefollowingspecieswasexamined:Cephalostemonriedelianus(Rapataceae),Cyperuspapyrus(Cyperaceae),Lagenocarpusrigidus,L.junciformis(Cyperaceae),Echinodoruspaniculatus(Alis-mataceae)andZingiberofficinale(Zingiberaceae).Theendodermiswithmeristematicac...

The present study deals with the leaf anatomy of two species of Cyperaceae: Trilepis lhotzkiana and Trilepis ciliatifolia. Both species grow on granitic outcrop from Rio de Janeiro State, Brazil. The results reveal that they present commom features as: single-layered epidermis, with conical silica bodies, paracitic stomata, unicellular hairs and co...

This paper proposes a new interpretation for primary thickening in monocotyledons. The anatomy of the vegetative organs of the following species was examined: Cephalostemon riedelianus (Rapataceae), Cyperus papyrus (Cyperaceae), Lagenocarpus rigidus, L. junciformis (Cyperaceae), Echinodorus paniculatus (Alismataceae) and Zingiber officinale (Zingib...