Altitudinal Distribution of Loranthaceae Parasites of Woody Plants on the Mandara Mountains in the Far North Region, Cameroon

The paper presents the results of a comprehensive assessment of the viability and decorativeness of 20 samples of 17 taxa of the genus Crataegus L. when introduced into the Kola North. The study is one of the stages of a systematic description of the adaptive state of plants of the genus Crataegus when introduced into the conditions of the Far North. The main part of the studied samples are highly decorative quite viable plants that have high winter hardiness, maintain their growth shape, are able to produce germinating seeds, and have attractive inflorescences and fruits. C. chlorosarca, C. chlorosarca f. pyramidalica, C. cuneata, C. dahurica, C. douglasii, C. flabellata, C. laevigata, C. maximoviczii, C. pinnatifida, C. sanguinea, C. x schroederi. C. arnoldiana, C. canadensis and C. foetida are nonviable and undecorative plants. For the introduction of promising species of the genus Crataegus into the landscaping of cities of the Kola Peninsula, preliminary testing is required. Maintaining a highly decorative state is possible while observing the care of woody plants.

Download Full-text

Diversité et usages des plantes ligneuses des agrosystèmes périphériques de la ville de Maroua (Extrême-Nord, Cameroun)

International Journal of Biological and Chemical Sciences ◽

10.4314/ijbcs.v14i3.25 ◽

2020 ◽

Vol 14 (3) ◽

pp. 966-982

Author(s):

Claudette Baye Niwah ◽

Gilbert Todou ◽

Konsala Souare ◽

Abassi Abdoulaye ◽

Sakitai Bay ◽

...

Keyword(s):

Woody Plants ◽

Sustainable Use ◽

Acacia Nilotica ◽

Ziziphus Mauritiana ◽

Tamarindus Indica ◽

Plant Resources ◽

Balanites Aegyptiaca ◽

Far North ◽

Sclerocarya Birrea ◽

Acacia Albida

Une étude a été menée en périphérie de Maroua (Extrême-Nord, Cameroun) dans le but de contribuer à une gestion durable des ressources végétale sahélienne. Cette étude a identifié et a calculé la diversité des plantes ligneuses des champs de case suivant un dispositif de 20 quadrats (50 m x 50 m) dans cinq localités. Elle a aussi déterminé les catégories d’usage et les organes récoltés de chaque plante utilisée. La Méthode Accélérée de Recherche Participative (MARP) a été reprise pour collecter les données ethnobotaniques auprès de 100 ménages. Les analyses des résultats obtenus ont montré que les champs de case comportent au total, 38 espèces (26 plantes locales) réparties dans 27 genres et 26 familles. Les familles les plus abondantes ont été Méliacées (32,26%) et Mimosacées (29,26%). Acacia nilotica, Acacia albida, Balanites aegyptiaca, Moringa oleifara, Sclerocarya birrea, Tamarindus indica et Ziziphus mauritiana sont les espèces locales les plus utilisées (au moins quatre catégories d’usages). Les résultats ont montré que les champs de case peuvent être des bons systèmes de valorisation et de conservation des plantes locales.Mots clés : Champs de case, plantes ligneuses, enquête ethnobotanique et socio-économique, valorisation, usage durable. English Title: Diversity and uses of woody plants from peripheral agro-systems in the city of Maroua (Far North, Cameroon)A study was conducted around Maroua (Far North, Cameroon) with the aim of contributing to sustainable management of Sahelian plant resources. This study identified and calculated the diversity of woody plants in village fields using a system of 20 quadrats (50 mx 50 m) in five localities. It also determined the categories of use and the organs harvested from each plant used. The Accelerated Participatory Research Method (MARP) was used to collect ethnobotanical data from 100 households. Analyzes of the results obtained have shown that the village fields contain in total 38 species (26 native plants) in 27 genera and 26 families. The most abundant families were Meliaceae (32.26%) and Mimosaceae (29.26%). Acacia nilotica, Acacia albida, Balanites aegyptiaca, Moringa oleifara, Sclerocarya birrea, Tamarindus indica and Ziziphus mauritiana found to be the most commonly used local species (at least four categories of uses). The results showed that village field can be good systems for the recovery and conservation of native plants.Keywords: Village field, woody plants, ethnobotanical and socio-economic survey, valorization, sustainable use.

Download Full-text

Diversité et importance socio-économique des Loranthaceae parasites des plantes ligneuses des Monts Mandara dans la Région de l’Extrême-Nord, Cameroun

International Journal of Biological and Chemical Sciences ◽

10.4314/ijbcs.v15i2.16 ◽

2021 ◽

Vol 15 (2) ◽

pp. 578-593

Author(s):

Djibrilla Mana ◽

Souare Konsala ◽

Ibrahima Adamou

Keyword(s):

Sustainable Management ◽

Woody Plants ◽

Mangifera Indica ◽

Economic Importance ◽

The Other ◽

Ethnobotanical Survey ◽

Parasitic Species ◽

Far North ◽

Troubles Mentaux ◽

African Populations

Les Loranthaceae constituent des ressources précieuses pour les populations locales africaines. Cependant, peu d’ethnies connaissent l’importance socio-économique des Loranthaceae de par le manque d’études ethnobotaniques sur ces espèces. Afin de contribuer à la valorisation et à la gestion durable des Loranthaceae parasites des plantes ligneuses, une approche associant deux méthodes a été adoptée. L’une, basée sur des relevés de surface et l’autre sur une enquête ethnobotanique relative aux connaissances locales des Loranthaceae dans 9 Arrondissements de la Région de l’Extrême-Nord du Cameroun. Au total, 4 genres (Agelanthus, Globimetula, Phragmanthera et Tapinanthus) et 7 espèces parasites (Agelanthus dodoneifolius, Globimetula braunii, Phragmanthera capitata, Tapinanthus bangwensis, T. belvisii, T. globiferus et T. ophiodes) ont été inventoriés et identifiés dans les Monts Mandara. Il ressort aussi que ces espèces parasites sont utilisées en pharmacopée dans des recettes médicinales et magico-religieuses (45,56%), pour traiter des infertilités (32,70%) et des troubles mentaux (32,36%). Les résultats ont aussi montré que Mangifera indica (35,74%) et Senna singueana (34,41%) sont les hôtes des parasites les plus sollicités. Aussi ont-ils révélé que la commercialisation des Loranthaceae constitue une source de revenu économique et une ressource importante en pharmacopée pour les populations locales des Monts Mandara. Ces résultats pourraient servir de référence pour la recherche de stratégies d’exploitation et de conservation durable de cette diversité végétale.Mots clés : Loranthaceae, Espèces parasites, pharmacopée, Monts Mandara, Cameroun. English Title: Diversity and socio-economic importance of Loranthaceae parasites of woody plants of Mandara Mountains in the Far-North Region, Cameroon Loranthaceae are valuable resources for local African populations. However, few ethnic groups know the socio-economic importance of Loranthaceae due to the lack of ethnobotanical studies on these species. In order to contribute to the enhancement and sustainable management of Loranthaceae parasites of woody plants, an approach combining two methods was adopted. One, based on surface surveys and the other on an ethnobotanical survey relating to local knowledge of Loranthaceae in 9 Subdivisions of the Far North Region of Cameroon. In total, 4 genera (Agelanthus, Globimetula, Phragmanthera and Tapinanthus) and 7 parasitic species (Agelanthus dodoneifolius, Globimetula braunii, Phragmanthera capitata, Tapinanthus bangwensis, T. belvisii, T. globiferus and T. ophiodes) have been inventoried on the Mandara Mountains. It also appears that these parasitic species are used in pharmacopoeia in medicinal and magico-religious recipes (45.56%), to treat infertility (32.70%) and mental disorders (32.36%). The results also showed that Mangifera indica (35.74%) and Senna singueana (34.41%) are the hosts of most solicited parasites. They also revealed that the commercialisation of Loranthaceae constitutes a source of economic income and an important resource in pharmacopoeia for the local populations of the Mandara Mountains. These results could serve as a reference of strategies for the sustainable exploitation and conservation of this plant diversity.Keywords: Loranthaceae, parasitic species, pharmacopoeia, Mandara mountains, Cameroon.

Download Full-text

Identification of Maize Rayado Fino Virus by Immunoelectron Microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100119879 ◽

1985 ◽

Vol 43 ◽

pp. 636-637

Author(s):

O. E. Bradfute

Keyword(s):

Electron Microscopy ◽

Zea Mays ◽

Costa Rica ◽

Severe Disease ◽

Rabbit Serum ◽

Normal Rabbit Serum ◽

Virus Particles ◽

Far North ◽

Maize Rayado Fino Virus ◽

Antibody Coating

Maize rayado fino virus (MRFV) causes a severe disease of corn (Zea mays) in many locations throughout the neotropics and as far north as southern U.S. MRFV particles detected by direct electron microscopy of negatively stained sap from infected leaves are not necessarily distinguishable from many other small isometric viruses infecting plants (Fig. 1).Immunosorbent trapping of virus particles on antibody-coated grids and the antibody coating or decoration of trapped virus particles, was used to confirm the identification of MRFV. Antiserum to MRFV was supplied by R. Gamez (Centro de Investigacion en Biologia Celular y Molecular, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica).Virus particles, appearing as a continuous lawn, were trapped on grids coated with MRFV antiserum (Fig. 2-4). In contrast, virus particles were infrequently found on grids not exposed to antiserum or grids coated with normal rabbit serum (similar to Fig. 1). In Fig. 3, the appearance of the virus particles (isometric morphology, 30 nm diameter, stain penetration of some particles, and morphological subunits in other particles) is characteristic of negatively stained MRFV particles. Decoration or coating of these particles with MRFV antiserum confirms their identification as MRFV (Fig. 4).

Download Full-text

Non-Fatal Deliberate Self-Harm in Three Remote Indigenous Communities in Far North Queensland, Australia

Crisis ◽

10.1027/0227-5910/a000589 ◽

2019 ◽

Vol 40 (6) ◽

pp. 422-428 ◽

Cited By ~ 1

Author(s):

Chris Rouen ◽

Alan R. Clough ◽

Caryn West

Keyword(s):

Health Care ◽

Primary Health Care ◽

Care Center ◽

Indigenous Communities ◽

Indigenous Australians ◽

Deliberate Self Harm ◽

Health Care Center ◽

Far North ◽

Primary Health ◽

Self Harm

Abstract. Background: Indigenous Australians experience a suicide rate over twice that of the general population. With nonfatal deliberate self-harm (DSH) being the single most important risk factor for suicide, characterizing the incidence and repetition of DSH in this population is essential. Aims: To investigate the incidence and repetition of DSH in three remote Indigenous communities in Far North Queensland, Australia. Method: DSH presentation data at a primary health-care center in each community were analyzed over a 6-year period from January 1, 2006 to December 31, 2011. Results: A DSH presentation rate of 1,638 per 100,000 population was found within the communities. Rates were higher in age groups 15–24 and 25–34, varied between communities, and were not significantly different between genders; 60% of DSH repetitions occurred within 6 months of an earlier episode. Of the 227 DSH presentations, 32% involved hanging. Limitations: This study was based on a subset of a larger dataset not specifically designed for DSH data collection and assesses the subset of the communities that presented to the primary health-care centers. Conclusion: A dedicated DSH monitoring study is required to provide a better understanding of DSH in these communities and to inform early intervention strategies.

Download Full-text

Benčať, František (Hrsg.), International Symposium on Biology of Woody Plants. 720 S. Publishing House of the Slovak Academy of Sciences, Bratislava, 1973. Preis: Kcš 83.—

Feddes Repertorium ◽

10.1002/fedr.4910850405 ◽

1974 ◽

Vol 85 (4) ◽

pp. 319-320

Author(s):

G. Natho

Keyword(s):

International Symposium ◽

Woody Plants ◽

Publishing House ◽

Slovak Academy ◽

Academy Of Sciences

Download Full-text

Regional Policy in the Field of Natural Resources Management in the Far North

Voprosy Ekonomiki ◽

10.32609/0042-8736-2003-10-108-116 ◽

2003 ◽

pp. 108-116

Author(s):

A. Bykov

Keyword(s):

Economic Development ◽

Natural Resources ◽

Regional Policy ◽

Natural Resources Management ◽

Economic Factors ◽

Resource Saving ◽

Resources Management ◽

Legal Norms ◽

Far North ◽

The Russian Federation

According to the legal norms of the Russian Federation in the ownership, usage and disposal of natural resources the author analyses interaction between natural resources users and local authorities. The interaction is based upon ecological and economic factors, which cause the peculiarities of requirements put before natural resource users in the Far North. The strategic directions of resource saving economic development of these regions are considered.

Download Full-text