scholarly journals Conservación in situ y ex situ de las agaváceas y nolináceas mexicanas

2017 ◽  
pp. 27
Author(s):  
Irma Sonia Franco-Martínez
Keyword(s):  
Case Studies ◽  
Ex Situ Conservation ◽  
Selective Extraction ◽  
Ex Situ ◽  
Natural Areas ◽  
Yucca Schidigera ◽  
Risk Of Extinction ◽  
Protected Natural Areas ◽  
Plant Families

The Agavaceae and Nolinaceae, as other plant families, have been affected by the destruction and modification of their habitats and by selective extraction with commercial purposes of some of their species. This has generated that 48 species of Agavaceae and Nolinaceae have been included in the list of Mexican plants in risk of extinction (NOM-059-ECOL-l 994), and two of them (Agave parviflora and Agave victoriae-reginae) are listed in the appendices of CITES. There are 30 Protected Natural Areas that conserve in situ at least one species of the Agavaceae or Nolinaceae. The ex situ conservation is done in 38 Botanical Gardens, 22 of them include in their collections at least one species of these families. There are also eight commercial nurseries that have started the propagation by seed of 12 species, mainly from the genus Agave. Case studies on Agave victoriae-reginae, Beaucarnea recurvata and Yucca schidigera, are also analyzed.

Ethnomedicinal study of Plants in Wonchi District, South Western Shewa, Oromia Regional State, Ethiopia

2020 ◽  
Author(s):  
Getu Dida ◽  
Bikila Warkineh ◽  
Ermias Lulekal ◽  
Sebsebe Demissew
Keyword(s):  
Medicinal Plant ◽  
Ex Situ Conservation ◽  
Traditional Healers ◽  
Conservation Strategy ◽  
Ex Situ ◽  
Anthropogenic Factors ◽  
Plant Parts ◽  
Plant Utilization ◽  
Plant Families

Abstract This study documents indigenous medicinal plant utilization, management and the threats affecting them. The study carried out in Wonchi District from December to March 2017. Ethnomedicinal data were collected using semi-structural interview, Field observation, Preference and Direct matrix ranking with traditional healers. The Ethnomedicinal use of 68 plant species belonging to 62 genera and 34 families. was documented in the study area. The most commonly used plant families were Lamiaceae 9 species, 13.23%) followed by Asteraceae (8, 11.76%).Most of the plants (70.6%) were reportedly used to treat human diseases. The most frequently used plant parts were leaves (66%), followed by roots (17.64%).The dominant route of remedy administration was oral (38 preparations, 55.9%) followed by dermal (20, 29.4%), nasal (8, 11.8%) and optical (2, 3%). The study showed that Wonchi District is rich in medicinal plant and related indigenous knowledge. However, anthropogenic factors and very poor conservation efforts threaten medicinal plant survival in the study area. Promotion a complementary in-situ and ex-situ conservation strategy for medicinal plants of the District highly recommended.

scholarly journals Status of the Ex Situ and In Situ Conservation of Brazilian Crop Wild Relatives of Rice, Potato, Sweet Potato, and Finger Millet: Filling the Gaps of Germplasm Collections

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 638
Author(s):  
Marcelo B. Medeiros ◽  
José F. M. Valls ◽  
Aluana G. Abreu ◽  
Gustavo Heiden ◽  
Suelma Ribeiro-Silva ◽  
...  
Keyword(s):  
Finger Millet ◽  
Ex Situ Conservation ◽  
Gap Analysis ◽  
In Situ Conservation ◽  
Germplasm Collection ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Ex Situ ◽  
The Status

This study presents the status of ex situ and in situ conservation for the crop wild relatives of rice, potato, sweet potato, and finger millet in Brazil, and the subsequent germplasm collection expeditions. This research is part of a global initiative entitled “Adapting Agriculture to Climate Change: Collecting, Protecting, and Preparing Crop Wild Relatives” supported by the Global Crop Diversity Trust. Species of the primary, secondary, and tertiary gene pools with occurrences reported in Brazil were included: Oryza alta Swallen, O. grandiglumis (Döll) Prod., O. latifolia Desv., O. glumaepatula Steud., Eleusine tristachya (Lam.) Lam., E. indica (L.) Gaertn., Solanum commersonii Dunal, S. chacoense Bitter, Ipomoea grandifolia (Dammer) O’Donell, I. ramosissima (Poir.) Choisy, I. tiliacea (Willd.) Choisy, I. triloba L., and I. cynanchifolia Meisn. The status of the ex situ and in situ conservation of each taxon was assessed using the gap analysis methodology, and the results were used to plan 16 germplasm collection expeditions. Seeds of the collected material were evaluated for viability, and the protocols for seed germination and cryopreservation were tested. The final conservation score, resulting from the gap analysis and including the average of the ex situ and in situ scores, resulted in a classification of medium priority of conservation for all the species, with the exception of I. grandifolia (high priority). The total accessions collected (174) almost doubled the total accessions of these crop wild relatives incorporated in Embrapa’s ex situ conservation system prior to 2015. In addition, accessions for practically absent species were collected for the ex situ conservation system, such as Ipomoea species, Eleusine indica, and Solanum chacoense. The methods used for dormancy breaking and low temperature conservation for the Oryza, Eleusine, and Ipomoea species were promising for the incorporation of accessions in the respective gene banks. The results show the importance of efforts to collect and conserve ex situ crop wild relatives in Brazil based on previous gap analysis. The complementarity with the in situ strategy also appears to be very promising in the country.

Conservation and Change: A Comparison of In situ and Ex situ Conservation of Jala Maize Germplasm

Crop Science ◽  
2006 ◽  
Vol 46 (1) ◽  
pp. 428-436 ◽  
Author(s):  
Elizabeth B. Rice ◽  
Margaret E. Smith ◽  
Sharon E. Mitchell ◽  
Stephen Kresovich
Keyword(s):  
Ex Situ Conservation ◽  
Ex Situ ◽  
Maize Germplasm

In Situ and Ex Situ Conservation of Coconut Genetic Resources

2020 ◽  
pp. 51-75
Author(s):  
Roland Bourdeix ◽  
Steve Adkins ◽  
Vincent Johnson ◽  
Lalith Perera ◽  
Sisunandar
Keyword(s):  
Genetic Resources ◽  
Ex Situ Conservation ◽  
Ex Situ

scholarly journals Ex situ conservation of genetic resources of field elm (Ulmus minor Mill) and European white elm (Ulmus laevis Pall)

Genetika ◽  
2004 ◽  
Vol 36 (3) ◽  
pp. 221-227
Author(s):  
Jelena Aleksic ◽  
Sasa Orlovic
Keyword(s):  
Genetic Resources ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
In Vitro Production ◽  
Ulmus Minor ◽  
Conservation Of Genetic Resources ◽  
Ulmus Laevis ◽  
Vitro Production

Principles of the conservation of genetic resources of elms (Ulmus spp) do not differ fundamentally from the general principles accepted for the conservation of genetic resources of other common Noble Hardwoods. Efficient conservation can best be achieved through appropriate combination of in situ and ex situ methods, which have distinct advantages. Besides that, ex situ conservation is employed when emergency measures are needed for rare endangered populations and when populations are too small to be managed in situ (e.g. risks of genetic drift and inbreeding). The aim of our research is ex situ conservation of genetic resources of field elm {Ulmus minor Mill) and European white elm (Ulmus laevis Pall) through establishment of field genebanks. Sampling was conducted in one population of field elm and one population of white elm. Plant material (buds) from 8 trees of field elm and 10 trees of white elm was used for in vitro production of clones. Obtained clones will be used for establishment of field genebanks on the experimental estate of the Institute of Lowland Forestry and Environment.

Effects of a Proposed Ex Situ Conservation Program on In Situ Conservation of the Babirusa, an Endangered Suid

2000 ◽  
Vol 14 (2) ◽  
pp. 382-385 ◽  
Author(s):  
L. M. Clayton ◽  
E. J. Milner‐Gulland ◽  
D. W. Sinaga ◽  
A. H. Mustari
Keyword(s):  
Ex Situ Conservation ◽  
In Situ Conservation ◽  
Ex Situ ◽  
Conservation Program

Population Assessment of An Endemic Tree, Croton Scabiosus Bedd. (Euphorbiaceae)

2017 ◽  
Vol 24 (4) ◽  
pp. 209-216
Author(s):  
S. Salamma ◽  
A. Narayanaswamy ◽  
M. Naik ◽  
D. Veeranjaneyulu ◽  
M.V. Babu ◽  
...  
Keyword(s):  
Tree Species ◽  
Random Sampling ◽  
Andhra Pradesh ◽  
Ex Situ Conservation ◽  
Adult Population ◽  
Ex Situ ◽  
Eastern Ghats ◽  
Population Assessment ◽  
Conservation Measures

The population of Croton scabiosus, an endemic tree species of southern Eastern Ghats of Andhra Pradesh, India was assessed through random sampling in 15 localities spread over 8 locations. In sampled 37.5 h area, a total of 8737 mature individuals of Croton scabiosus was recorded. Of the 8 locations, Sanipaya sub population was found stable and considered elite owing to the maximum number of mature individuals, girth and height. In spite of good adult population, low number of seedlings and saplings of the species across the native terrain indicates its poor germination and recruitment warranting both in situ and ex situ conservation measures.

scholarly journals Propagation of Threatened Nepenthes khasiana: Methods and Precautions

2015 ◽  
Vol 7 (3) ◽  
pp. 313-315
Author(s):  
Jibankumar S. KHURAIJAM ◽  
Rup K. ROY
Keyword(s):  
Plant Species ◽  
Threatened Species ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
In The Wild ◽  
Propagation Technique ◽  
Subsequent Propagation ◽  
Nepenthes Khasiana

Ex-situ conservation is an important key in the management of rare, endangered and threatened (RET) plant species and its effectiveness depends on several factors. Maintenance of viable germplasm and its subsequent propagation plays an important role in long term conservation of many RET species. Nepenthes khasiana is a rare and gravely threatened species in the wild due to over-collection and other threats. The species needs urgent in-situ and ex-situ conservation. Development of easy to propagate techniques would pave faster multiplication for its use of educational, medicinal and horticultural purpose. In the present paper, successful propagation technique of Nepenthes khasiana through seeds is demonstrated along with detailed information on precautions to be taken during the adoption of the techniques.

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