Natural distribution of yerba mate in Brazil in the current and future climatic scenarios

Français. Un inventaire des ptéridophytes a été entrepris dans les forêts de la région de Tlemcen. L’inventaire de ces populations constitue une étape importante pour le développement des stratégies de conservation des ressources génétiques et de la diversité de ces populations sur l’ensemble de leur aire de distribution naturelle. Nous avons ainsi effectué le recensement et l’identification des fougères existantes dans la région de Tlemcen. Au total, plusieurs stations dont les caractéristiques écologiques diffèrent d’un site à un autre ont été prospectées, cela a permis l’identification de 26 taxons (dont 5 exceptionnellement rare). La création de réserves naturelles forestières renforcée par une protection réglementaire des espèces les plus menacées est nécessaire pour le maintien de ces communautés si particulières. English. An inventory of Pteridophyta was begun in the forests of the Tlemcen region. The inventory of these populations constitutes an important stage for the developement of the strategies of preservation of the genetic resources and the diversity of these populations on their whole area of natural distribution. We so made the inventory and the identification of the existing ferns in the region of Tlemcen. On the whole, several stations the ecological characteristics differ from a site in the other one were canvassed; they allowed the identification of 26 taxes (among which 5 exceptionally rare). The creation of forest nature reserves strengthened by a statutory protection of the most threatened species is necessary for the preservation of these particular communities.

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Allergy to Yerba mate: new allergens detected

10.26226/morressier.5acc8ad4d462b8028d89acb9 ◽

2018 ◽

Author(s):

Dario Antolin Amerigo

Keyword(s):

Yerba Mate

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EFECTOS DEL CULTIVO DE YERBA MATE BAJO SOMBRA SOBRE LA MESOFAUNA EDAFICA EN LA RESERVA DE BIÓSFERA DEL BOSQUE MBARACAYÚ

Anais do XVII Encontro Nacional de Estudantes de Engenharia Ambiental e V Fórum Latino-Americano de Engenharia e Sustentabilidade ◽

10.29327/15304.17-162654 ◽

2019 ◽

Author(s):

Luis Cesar Velázquez Silva ◽

Victoria Kubota

Keyword(s):

Yerba Mate

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Chemistry and Safety of South American Yerba Mate Teas

10.1007/978-3-030-69614-6 ◽

2021 ◽

Author(s):

Candela Iommi

Keyword(s):

South American ◽

Yerba Mate

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Surprising Drought Tolerance of Fir (Abies) Species between Past Climatic Adaptation and Future Projections Reveals New Chances for Adaptive Forest Management

Forests ◽

10.3390/f12070821 ◽

2021 ◽

Vol 12 (7) ◽

pp. 821

Author(s):

Csaba Mátyás ◽

František Beran ◽

Jaroslav Dostál ◽

Jiří Čáp ◽

Martin Fulín ◽

...

Keyword(s):

Drought Stress ◽

Drought Tolerance ◽

Test Site ◽

Species Differentiation ◽

Silver Fir ◽

Growth And Survival ◽

Future Performance ◽

Moisture Deficit ◽

Climatic Scenarios ◽

Unique Potential

Research Highlights: Data of advanced-age provenance tests were reanalyzed applying a new approach, to directly estimate the growth of populations at their original sites under individually generated future climates. The results revealed the high resilience potential of fir species. Background and Objectives: The growth and survival of silver fir under future climatic scenarios are insufficiently investigated at the xeric limits. The selective signature of past climate determining the current and projected growth was investigated to analyze the prospects of adaptive silviculture and assisted transfer of silver fir populations, and the introduction of non-autochthonous species. Materials and Methods: Hargreaves’ climatic moisture deficit was selected to model height responses of adult populations. Climatic transfer distance was used to assess the relative drought stress of populations at the test site, relating these to the past conditions to which the populations had adapted. ClimateEU and ClimateWNA pathway RCP8.5 data served to determine individually past, current, and future moisture deficit conditions. Besides silver fir, other fir species from South Europe and the American Northwest were also tested. Results: Drought tolerance profiles explained the responses of transferred provenances and predicted their future performance and survival. Silver fir displayed significant within-species differentiation regarding drought stress response. Applying the assumed drought tolerance limit of 100 mm relative moisture deficit, most of the tested silver fir populations seem to survive their projected climate at their origin until the end of the century. Survival is likely also for transferred Balkan fir species and for grand fir populations, but not for the Mediterranean species. Conclusions: The projections are less dramatic than provided by usual inventory assessments, considering also the resilience of populations. The method fills the existing gap between experimentally determined adaptive response and the predictions needed for management decisions. It also underscores the unique potential of provenance tests.

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Chalepin and Chalepensin: Occurrence, Biosynthesis and Therapeutic Potential

Molecules ◽

10.3390/molecules26061609 ◽

2021 ◽

Vol 26 (6) ◽

pp. 1609

Author(s):

Lutfun Nahar ◽

Shaymaa Al-Majmaie ◽

Afaf Al-Groshi ◽

Azhar Rasul ◽

Satyajit D. Sarker

Keyword(s):

Medicinal Plant ◽

Critical Appraisal ◽

Therapeutic Potential ◽

Therapeutic Agents ◽

Review Article ◽

Natural Distribution ◽

Antiplatelet Aggregation ◽

Ruta Chalepensis ◽

The Family ◽

Novel Therapeutic

Dihydrofuranocoumarin, chalepin (1) and furanocoumarin, chalepensin (2) are 3-prenylated bioactive coumarins, first isolated from the well-known medicinal plant Ruta chalepensis L. (Fam: Rutaceae) but also distributed in various species of the genera Boenminghausenia, Clausena and Ruta. The distribution of these compounds appears to be restricted to the plants of the family Rutaceae. To date, there have been a considerable number of bioactivity studies performed on coumarins 1 and 2, which include their anticancer, antidiabetic, antifertility, antimicrobial, antiplatelet aggregation, antiprotozoal, antiviral and calcium antagonistic properties. This review article presents a critical appraisal of publications on bioactivity of these 3-prenylated coumarins in the light of their feasibility as novel therapeutic agents and investigate their natural distribution in the plant kingdom, as well as a plausible biosynthetic route.

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Wetland Restoration with Hydrophytes: A Review

Plants ◽

10.3390/plants10061035 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1035

Author(s):

Maria A. Rodrigo

Keyword(s):

Wetland Restoration ◽

Large Scale ◽

Emergent Plants ◽

Filamentous Green Algae ◽

Vital Functions ◽

Climatic Scenarios ◽

Restoration Practices ◽

Natural Wetlands ◽

Sediment Transfer ◽

Negative Factors

Restoration cases with hydrophytes (those which develop all their vital functions inside the water or very close to the water surface, e.g., flowering) are less abundant compared to those using emergent plants. Here, I synthesize the latest knowledge in wetland restoration based on revegetation with hydrophytes and stress common challenges and potential solutions. The review mainly focusses on natural wetlands but also includes information about naturalized constructed wetlands, which nowadays are being used not only to improve water quality but also to increase biodiversity. Available publications, peer-reviewed and any public domain, from the last 20 years, were reviewed. Several countries developed pilot case-studies and field-scale projects with more or less success, the large-scale ones being less frequent. Using floating species is less generalized than submerged species. Sediment transfer is more adequate for temporary wetlands. Hydrophyte revegetation as a restoration tool could be improved by selecting suitable wetlands, increasing focus on species biology and ecology, choosing the suitable propagation and revegetation techniques (seeding, planting). The clear negative factors which prevent the revegetation success (herbivory, microalgae, filamentous green algae, water and sediment composition) have to be considered. Policy-making and wetland restoration practices must more effectively integrate the information already known, particularly under future climatic scenarios.

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Euseius concordis (chant) (Acari: Phytoseiidae) as a potential agent for the control of yerba mate red mite Oligonychus yothersi (McGregor) (Acari: Tetranychidae)

Phytoparasitica ◽

10.1007/s12600-020-00879-4 ◽

2021 ◽

Author(s):

Catiane Dameda ◽

Amália Luisa Winter Berté ◽

Guilherme Liberato da Silva ◽

Liana Johann ◽

Noeli Juarez Ferla

Keyword(s):

Yerba Mate

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Vegetative propagation, chemical composition and antioxidant activity of yerba mate genotypes

Plant Genetic Resources ◽

10.1017/s1479262121000150 ◽

2021 ◽

pp. 1-10

Author(s):

Leandro Marcolino Vieira ◽

Renata de Almeida Maggioni ◽

Jéssica de Cássia Tomasi ◽

Erik Nunes Gomes ◽

Ivar Wendling ◽

...

Keyword(s):

Antioxidant Activity ◽

Phenolic Compounds ◽

Vegetative Propagation ◽

Adventitious Rooting ◽

Ilex Paraguariensis ◽

Total Phenolic ◽

Yerba Mate ◽

Total Phenolic Compounds ◽

Leaf Retention ◽

Correlated Components

Abstract Ilex paraguariensis, commonly known as yerba mate, is a tree species native to South America. Its commercial value is due to the manufacturing of teas, with potential also in the pharmacological and cosmetic industries. Vegetative propagation of yerba mate is considered an innovation to the traditional production systems based on sexual propagation. The present study aimed to evaluate the rhizogenic potential and chemical attributes of mini-cuttings from 15 yerba mate genotypes, as well as to verify the correlation between phytochemical and rooting-related variables. Mini-cuttings were collected from a pre-existing mini-clonal hedge and the experimental design was completely randomized, with 15 treatments (genotypes), four replications and 10 mini-cuttings per plot. After 120 days, mini-cuttings were assessed regarding rooting, mortality, callogenesis and leaf retention percentages, percentage of mini-cuttings with both calluses and roots, number of roots and average root length. At the time of collection, subsamples from each plot were used for phytochemical analyses including total phenolic compounds, protein, caffeine and theobromine contents and antioxidant activity. Rooting percentages ranged from 5 to 72.5%, with significant variation among genotypes. Adventitious rooting and phytochemical profile of yerba mate mini-cuttings are genotype-dependent. Leaf retention is a relevant factor in the rooting of yerba mate mini-cuttings and the levels of total phenolic compounds, antioxidants and theobromine present in mini-cuttings are negatively correlated components to Ilex paraguariensis adventitious rooting.

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