O gênero Polygala L. (Polygalaceae) na região Sul do Brasil

Lüdtke, Raquel; Souza-Chies, Tatiana T.; Miotto, Sílvia Teresinha Sfoggia

doi:10.1590/s2236-89062013000100001

Cited by 11 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Groups emerged from the cluster analysis (see Figure 4 for details). Illustrations in order of appearance: Rachid-Edwards (1956), Warming (1908), Appezzato-da-Glória (2015, Martius, Eichler, and Urban (1891) and Lüdtke, Souza-Chies, and Miotto (2013) community dynamics (Archibald et al, 2018;Klimešová, Martínková, & Ottaviani, 2018;Lehmann et al, 2019;Ottaviani, Martínková, Herben, Pausas, & Klimešová, 2017). Considering all traits together, we were able to classify the species into five functional groups.…”

Section: Discussionmentioning

confidence: 99%

The diversity of post‐fire regeneration strategies in the cerrado ground layer

et al. 2020

View full text Add to dashboard Cite

Disentangling species strategies that confer resilience to natural disturbances is key to conserving and restoring savanna ecosystems. Fire is a recurrent disturbance in savannas, and savanna vegetation is highly adapted to and often dependent on fire. However, although the woody component of tropical savannas is well studied, we still do not understand how ground‐layer plant communities respond to fire, limiting conservation and management actions. We investigated the effects of prescribed fire on community structure and composition, and evaluated which traits are involved in plant community regeneration after fire in the cerrado ground layer. We assessed traits related to species persistence and colonization capacity after fire, including resprouter type, underground structure, fire‐induced flowering, regeneration strategy and growth form. We searched for functional groups related to response to fire, to shed light on the main strategies of post‐fire recovery among species in the ground layer. Fire changed ground‐layer community structure and composition in the short term, leading to greater plant species richness, population densities and increasing bare soil, compared with unburned communities. Eight months after fire, species abundance did not differ from pre‐disturbance values for 86% of the species, demonstrating the resilience of this layer to fire. Only one ruderal species was disadvantaged by fire and 13% of the species benefited. Rapid recovery of soil cover by native vegetation in burned areas was driven by species with high capacity to resprout and spread vegetatively. Recovery of the savanna ground‐layer community, as a whole, resulted from a combination of different species traits. We summarized these traits into five large groups, encompassing key strategies involved in ground‐layer regeneration after fire. Synthesis. Fire dramatically changes the ground layer of savanna vegetation in the short term, but the system is highly resilient, quickly recovering the pre‐fire state. Recovery involves different strategies, which we categorized into five functional groups of plant species: grasses, seeders, bloomers, undergrounders and resprouters. Knowledge of these diverse strategies should be used as a tool to assess conservation and restoration status of fire‐resilient ecosystems in the cerrado.

show abstract

Section: Discussionmentioning

confidence: 99%

The diversity of post‐fire regeneration strategies in the cerrado ground layer

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Thus, data were collected from the following questions: 1) Which B. Floribunda parts are frequently used? 2) Which diseases are commonly treated with This plant grows in Venezuela, Peru, Paraguay and Brazil [40]. This plant has a shrub or lianas shrub with cylindrical, glabrescent, purebulous or villous branches with an indentation of sharp hair.…”

Section: Selection Of Herb Sellers and Data Collectionmentioning

confidence: 99%

<i>Bredemeyera floribunda</i> Wild Elemental Content and Comparison with Nutritional Recommendation for Adults: Medicinal Plant Used by the Brazilian Rural Population to Treat Fatigue and Exhaustion

Tschinkel¹,

Melo²,

Arakaki³

et al. 2020

AJPS

View full text Add to dashboard Cite

Bredemeyera floribunda Wild (Polygalaceae), also known as pau-de-ovo is a medicinal plant used to treat snakebites, as tonic and fortifiers to treat fatigue and exhaustion. The aim of the present study was to document the knowledge of herbal sellers in the preparation of the so-called "B. floribunda fortifier" and to compare the plant root content with the recommended nutritional values and the permitted limit for medicinal plants. The study revealed that, unlike other regions of Brazil, in the Midwest region, the root of the plant is used as food to treat fatigue and exhaustion. The contents in B. floribunda root decreased in the following order: Ca > K > P > Na > Fe > Mg > Si > Mn > Zn > Cu. Daily intake of 30 grams of B. floribunda roots are considered as an excellent source of Cr, Cu, Mn and Se for people 19 to 50 years of age according to the RDA. In addition, Cu and Fe showed content above the established limit for medicinal plants stipulated by other countries. The root of the plant has low K, Mg, P, Na and Zn content. When the contents in roots of the plant are below the oral dose of reference, consumption of this plant can be considered safe and without risk to human health. On the other hand, concentration of elements such as Cu, Fe, Ni, Al, Cr and Se exceeding the allowable limit may cause serious health problems due to prolonged ingestion

show abstract