Revision of the Phyllachoraceae (Ascomycota) on hosts in the angiosperm family, Proteaceae

2001 ◽  
Vol 14 (2) ◽  
pp. 283 ◽  
Author(s):  
Ceridwen A. Pearce ◽  
Paul Reddell ◽  
Kevin D. Hyde

A literature review yielded seven Australian taxa within the Phyllachoraceae recorded from hosts in the angiosperm family Proteaceae, with three taxa from overseas. New collections and herbarium material were examined by using traditional microscopic characters. Seven new Australian taxa were identified. These include Phyllachora banksiae subsp. westaustraliensis on Banksia speciosa, Phyllachora tjapukiensis on Darlingia darlingiana, Phyllachora kylei on Dryandra spp., Phyllachora amplexicaulii on Hakea amplexicaulis, Phyllachora grevilleae subsp. clelandii on Hakea clavata and H. vittata, Phyllachora hakeicola subsp. cuttacuttae on Hakea arborescens and Phyllachora hakeicola subsp. tasmaniensis on Hakea lissosperma. We now recognise nine species, four subspecies and one variety within the Phyllachoraceae on Proteaceae in Australia, and Phyllachora rhopalina var. rhopalina and P. rhopalina var. macrospora from South America. In this paper, these taxa are described and illustrated by using interference contrast micrographs. A key to all known species of Phyllachoraceae on hosts in the Proteaceae is provided.

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Daniel Coscarelli ◽  
Lângia C. Montresor ◽  
Philip Russo ◽  
Alan Lane de Melo ◽  
Teofânia H.D.A. Vidigal

Abstract Accurate distributional information is crucial for studies on systematics, biodiversity and conservation. To improve the knowledge regarding the geographical distribution of Omalonyx in South America, we present updated information based on data from a literature review, institutional collections and malacological surveys. All this information composed the dataset used to predict species distribution employing the Maximum Entropy Algorithm (MaxEnt). The model was run using data on species distribution, altitude and bioclimatic variables (WorldClim database). The model had consistent performance, and areas presenting similar conditions to areas where the species were recorded were considered areas of occurrence. The predicted occurrence areas included those that were already surveyed and those that are considered potential occurrence areas. The results demonstrate that the genus has widespread distribution in the Neotropical region and occurs in the tropical, temperate and arid regions of South America and Lesser Antilles. Omalonyx spp. were recorded in all South American countries and hydrographic regions. However, in some countries, there were only isolated records (ex: Colombia and Ecuador). Here, we also present the first record of Omalonyx spp. in four Brazilian States (Acre, Rondônia, Piaui, and Amapá). The genus was found in all hydrographic regions within Brazil and among 27 federative unities; it was absent from only two unities (Roraima State and Distrito Federal). This work contributes to the knowledge on Omalonyx spp. distribution and provides an important basis for the work of ecologists and taxonomists.


AGRIFOR ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 275
Author(s):  
Indah Wulandari ◽  
Harlinda Kuspradini, Irawan Wijaya

Litsea is a important genus from Lauraceae family, found in the tropic and subtropic Asia, Australia and from North to South America. Related literature review with biology activity show that secondary metabolite compounds in the Lauraceae plants contained insecticide and cytotoxic activities. Insecticide activities show bioactive compounds such as alkaloid, terpenoid and flavonoid. Botanical insecticides by terpenoid groups that found is piretrin, camphene and azardirakhtin. This research do to analyze secondary metabolite compunds by five species Litsea extract from bole, bark and leaf. Analysis of phytochemical compunds using qualitative method. Based on test result can be known that five species positively contains alkaloids, flavonoids, tannins, carbohydrate and coumarins.


MycoKeys ◽  
2019 ◽  
Vol 53 ◽  
pp. 23-72 ◽  
Author(s):  
Sonja Kistenich ◽  
Mika Bendiksby ◽  
Charles S. Vairappan ◽  
Gothamie Weerakoon ◽  
Siril Wijesundara ◽  
...  

Phyllopsora is a crustose to squamulose lichen genus inhabiting the bark of trees in moist tropical forests and rainforests. Species identification is generally challenging and is mainly based on ascospore morphology, thallus morphology and anatomy, vegetative dispersal units, and on secondary chemistry. While regional treatments of the genus have been conducted for Africa, South America and Australia, there exists no study focusing on the Asian and Melanesian species. Previously, 24 species of Phyllopsora s. str. have been reported from major national studies and checklists representing 13 countries. We have studied herbarium material of 625 Phyllopsora specimens from 18 countries using morphology, anatomy, secondary chemistry, and molecular data to investigate the diversity of Phyllopsora species in Asia and Melanesia. We report the occurrence of 28 species of Phyllopsora including the following three species described as new to science: P.sabahana from Malaysia, P.siamensis from Thailand and P.pseudocorallina from Asia and Africa. Eight species are reported as new to Asia. A key to the Asian and Melanesian species of Phyllopsora is provided.


Author(s):  
Lucas Guerra ◽  
Gustavo Frisso

The article presents an analysis of the recent dismantling of the Union of South-American Nations (UNASUR) under the governments of the liberal-conservative turn recently experienced in South America. Through the mobilization of excerpts from speeches by Heads of State in the region, it is possible to note that the allegedly “ideological” character of UNASUR is presented as the main justification for leaving the institution. Having that in mind, the main objective of the article is to interrogate narratives about the ‘ideological’ character of UNASUL. For that, the article presents a literature review on regionalism, pragmatism and ideology to challenge this narrative. It is argued, first, that pragmatism and ideology in regionalism are not dichotomous, but complementary concepts. Moreover, despite UNASUR’s ideological elements, the organization represents a series of alignments and pragmatic factors in its institutionalization and performance. Finally, it is argued that the proposals for “de-ideologization” and “pragmatic realignment” of the regionalism of the new rights in South America are, in fact, more ideological than pragmatic as they claim.


2021 ◽  
Author(s):  
Yannis Schöneberg ◽  
Gunther Köhler

The aquatic snakes of the genus Helicops are widely distributed throughout northern South America but understudied concerning many aspects, including morphological traits and distribution. The most recent publication that provided an identification key to all species of Helicops is more than 50 years old. The key is of limited value today since it included taxa no longer recognized and lacks 8 of the 19 species currently recognized. There never was a publication trying to summarize the distribution information of all species of Helicops. Most of the knowledge on these species is distributed over many small publications, like observation notes. Here we present point distribution maps, an identification key and comments on identification for all species in this genus based on the results of a comprehensive literature review of over 300 scientific publications and own examinations. Our examinations comprise 190 specimens of 10 of the 19 currently recognized species and one Helicops sp. Furthermore, we report range extensions for the species H. angulatus, H. danieli, H. infrataeniatus, H. leopardinus, H. pastazae and H. polylepis.


Zootaxa ◽  
2021 ◽  
Vol 5027 (1) ◽  
pp. 61-86
Author(s):  
EVERTON E. NAZARÉ-SILVA ◽  
FERNANDO A.B. SILVA

The South American species of Pseudocanthon Bates, 1887 (Coleoptera: Scarabaeidae: Scarabaeinae: Deltochilini) are reviewed. In this work, 10 valid species and two subspecies are recognized for the genus. Among these species, five are recorded in South America, including three new species: P. perplexus (LeConte, 1847), P. xanthurus (Blanchard, 1847), P. vazdemelloi new species, P. pantanensis new species, and P. chaquensis new species. A lectotype is designated for P. xanthurus (Blanchard, 1847). In this revision, each species is analyzed as follows: a detailed literature review, an identification key for the South American species, a diagnosis, descriptions, illustrations of key morphological characters, list of examined material, and geographic distribution.  


2010 ◽  
Vol 82 (2) ◽  
pp. 353-359 ◽  
Author(s):  
Cecilia Macluf ◽  
Esteban I. Meza Torres ◽  
Stella M. Solís

The name Isoetes pedersenii H.P. Fuchs (Lycophyta), a species known only from the Mburucuyá National Park, Corrientes, Argentina, is validated. Observations were carried out on herbarium material with stereoscopic, light and scanning electron microscopes. The species is described and typified. A diagnosis and discussion about its distribution and its relationship with the morphology of other species of Isoetes are provided.


2014 ◽  
Vol 64 (2) ◽  
pp. 141-150 ◽  
Author(s):  
Ana Cristina L. Garcia ◽  
Edson S.B. Leal ◽  
Claudia Rohde ◽  
Francisco G. Carvalho-Neto ◽  
Martín A. Montes

Due to the lack of studies with a regional focus on the richness and distribution of the fauna of chiropterans in northeastern Brazil, this paper presents a collection of these data gathered in an extensive literature review. The data analyzed include technical reports of environment consulting agencies, abstracts presented in scientific meetings, monographs, dissertations, theses, papers, scientific notes, short communications, book chapters and books on bats of South America, Brazil and the biomes Amazon, Caatinga, Cerrado and Atlantic Forest. The numbers of municipalities surveyed per biome and the localities, municipalities and species richness for each state and biome in northeastern Brazil were determined. This information indicated the regions lacking more consistent Chiroptera sampling efforts, namely large areas in the Amazon, Caatinga and Cerrado. However, bat surveys in Atlantic Forest environments in most northeastern Brazilian states were considered representative. Although bat populations in some states have been poorly surveyed, the results of this review afford to conclude that a large part of the diversity of bat species known in Brazil has been reported for the northeastern region of the country. This review enlarges the knowledge on bat species richness and distribution in northeastern Brazil, and indicates areas suffering from wide survey gaps.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Joseph L. Servadio ◽  
Claudia Muñoz-Zanzi ◽  
Matteo Convertino

Abstract Background Case fatality risk (CFR), commonly referred to as a case fatality ratio or rate, represents the probability of a disease case being fatal. It is often estimated for various diseases through analysis of surveillance data, case reports, or record examinations. Reported CFR values for Yellow Fever vary, offering wide ranges. Estimates have not been found through systematic literature review, which has been used to estimate CFR of other diseases. This study aims to estimate the case fatality risk of severe Yellow Fever cases through a systematic literature review and meta-analysis. Methods A search strategy was implemented in PubMed and Ovid Medline in June 2019 and updated in March 2021, seeking reported severe case counts, defined by fever and either jaundice or hemorrhaging, and the number of those that were fatal. The searches yielded 1,133 studies, and title/abstract review followed by full text review produced 14 articles reporting 32 proportions of fatal cases, 26 of which were suitable for meta-analysis. Four studies with one proportion each were added to include clinical case data from the recent outbreak in Brazil. Data were analyzed through an intercept-only logistic meta-regression with random effects for study. Values of the I2 statistic measured heterogeneity across studies. Results The estimated CFR was 39 % (95 % CI: 31 %, 47 %). Stratifying by continent showed that South America observed a higher CFR than Africa, though fewer studies reported estimates for South America. No difference was seen between studies reporting surveillance data and studies investigating outbreaks, and no difference was seen among different symptom definitions. High heterogeneity was observed across studies. Conclusions Approximately 39 % of severe Yellow Fever cases are estimated to be fatal. This study provides the first systematic literature review to estimate the CFR of Yellow Fever, which can provide insight into outbreak preparedness and estimating underreporting.


2021 ◽  
Vol 12 (3) ◽  
Author(s):  
Gonzalo Durán ◽  
Karina Narbona

More than forty years ago, the Chilean economy led the way in a process of flexibilising and privatising a wide range of areas: finance, pensions, education, work and so on. In 1990, with the end of Pinochet’s dictatorship, Chile continued to pursue neo-liberal economic policies and maintained the liberal conception of collective labour rights (imposed in 1979). By 2017, labour informality in Chile was among the lowest in South America. Taking these two factors into account (labour regulation that benefited business spending cuts and only “moderate” informality), this article explores the following questions: What are the features of current forms of labour formality in a paradigmatic neo-liberal context like Chile’s, and what space does informality occupy? Is labour formality far removed from the kind of vulnerability usually associated with informality? How have formality and informality related to each other in Chile in recent years? We address these questions with mixed methods: a literature review, development of a conceptual proposal, processing of statistical data and case studies. We conclude that a particular kind of labour formality currently prevails in Chile, which we call precarising formality. This concept disputes the traditional idea of labour formality, both because labour regulations lack substance and because they are ineffective, which is, of course, politically produced. We consider it precarising based on an analysis of multiple dimensions of precarity in contexts of theoretical labour formality. The article also describes forms of struggle and resistance by workers’ organisations that protest against capitalist action from within this new configuration of labour. KEYWORDS: formality; informality; labour precarity; Chile


Sign in / Sign up

Export Citation Format

Share Document