Edgar J. DaSilva* Director Section of Life Sciences Division of Basic Sciences UNESCO 1, Rue Miollis, 75015 Paris France E-Mail : e.dasilva@unesco.org Mary Taylor Regional Tissue Culture Adviser, Pacific Regional Agricultural Programme University of the South Pacific Apia Western Samoa E-Mail: maryt@samoa.net Fax: 0685-27035/22933 * Corresponding author
In the run-up to the year 2000 and beyond, several island countries, especially in the Caribbean and Pacific regions, are confronted by the challenges and threats of globalization. In response, several island countries are initiating self-reliant strategies aimed at national and regional endogenous development. Amongst these strategies, the potential of biotechnology for economic development and technological growth is being tapped.
The seas have long been used by island nations for the procurement of food and energy, for transport and communication, for political manoeuvre and military engagements, and as the inspiration for literature and art. Covering 71 per cent of the planet's surface, the world ocean is one continuous expanse of watery habitat for a rich diversity of flora and fauna ranging in size from the sub-microscopic to the visible. In this biosphere or laboratory of Nature, the organisation and symphony of multiple natural systems vary from the simple to the complex, from the silent to the audible, and from the colourless to the nuanced tints of a Han Dynasty landscape, or again to the vivid and vibrant hues of a Van Gogh or Rembrandt. Colwell (1987) recommends that islands and riparian nations explore the potential or marine biotechnology unique to their regions. Marine pharmaceuticals, genetic engineering of marine and estuarine animals and plants for food production, and marine speciality chemicals offer prospects for immediate and long-term rewards for island countries. Marine biotechnology is a subset of different biopractices such as aquaculture, marine natural products, bioremediation, cell culture, biosensors, and public health. The very use of these terms indicates the advances made through the use of spectacular biotechniques when one reflects on documentation of marine algae that have traditionally been used as food for humans, fodder for domestic animals, biofertilizer in agriculture and as sources of useful chemicals and medicines, and of energy and plastics (Lembi and Waaland, 1988). To sustain such marine bioindustries, species of red algae (Porphyra tenera) and brown entities (Undaria, Laminaria and Macrocystis) have been maintained in kelp ocean farms pioneered by the Japanese. A large number of island communities in the developing world lie in rural or semi-urban areas where agriculture and aquaculture are the main economic activities. The application of biotechnology to these two scientific "cultures" would to a very large extent help revolutionize traditional practices into self-sustaining market ventures that could generate badly needed capital (DaSilva, 1998). Contemporary research in Asia, Latin America and Africa has already led to the widespread use of the techniques of tissue culture and genetic engineering in maintaining export markets and creating new ones. Current efforts in the Caribbean and Pacific regions are indicative of this growing trend. The Caribbean nations consist of more than 25 island states with varying populations that depend on a rich diversity of plant genetic resources for their nutrition, health and well-being. The plan "Caribbean Development to the Year 2000: Challenges, Prospects and Policies" emphasized the general absence of innovation in Caribbean industry. The acquisition of appropriate technology from abroad, and the development of a well-defined infrastructure to sustain such technology are identified as effective strategies in responding to these inherent weaknesses. Still again, many Caribbean countries with their island economies based on terrestrial and marine resources are encouraged to reconcile the sustained and judicious development of these resources with climatic and environmental changes. To meet these challenges, and to capitalize on the potential wealth of their resources, several Caribbean island countries have resorted to the systematic application of biotechnology. One such step has been the establishment of a Caribbean Biotechnology Network, within the framework of UNESCO's global network of Microbial Resources Centres (MIRCENs) which resulted from political commitment when, a decade ago, the Grenada National Commission for UNESCO, representing the general agreement of Caribbean Ministers responsible for UNESCO Affairs and the Member States in the Caribbean sub-region, resolved that "an extension of the international network of resources centres (MIRCENs) be created in the Caribbean region". Another step forward resulted from action in the workshop "Perspectives for Biotechnology in the Caribbean, held in Port of Spain , Trinidad & Tobago, February 1988, which articulated a regional strategy focusing on the following priority areas:
To date, the most common application of biotechnology in the Caribbean islands has been in the fermentation of rum and beer. More recently, tissue culture has been used as an economical tool for the micropropagation of many food and ornamental plants (Table 1). Another recent development is research into methods for food preservation and extension of the shell-life of plant products. The Mona and St. Augustine campuses of the University of the West Indies are involved in joint ventures. For example, the Jamaican Government collaborates with industry in the production of white potatoes, ginger, banana, and yam. In Trinidad, gingerlilies, roses and orchids are produced for local markets. Recently, the technique of embryo transfer has being used to boost meat and milk production. In general, microbial biotechnological practices in the islands of the Caribbean are:
The banana producing and exporting states in the Caribbean region-- Belize, Dominica, Grenada, Jamaica, St. Lucia, St. Vincent and the Grenadines, and the Windward Islands, are plagued by a variety of geographical and economic disadvantages that are uncommon to their Central and South American competitors. Hilly terrain and hurricane-exposed locations add to high management and shipping costs of smaller volumes of banana exports. Crop production on steep terrain and small family venture farms, e.g. in the Windward Islands, continues to be the backbone of several rural economies and the socio-political fabric of a number of the Caribbean island countries. Collapse of such economies, can lead to socio-political turmoil, decimation of the tourist industry, to an exodus of economic refugees, development of undesirable markets e.g. illegal drug trade, and to turbulence and weakening of interdependent socio-economic infrastructures such as CARICOM and the Caribbean Basin Initiative. Maconellicoccus hirsutus, also commonly known as Hibiscus Mealy Bug or Pink Mealy Bug (PMB) is a new pest that, since 1993/1994, has been recorded in the Caribbean isles. Economic losses resulting from infestation of over 125 plant species, inclusive of beverage and food crops, fruits, vegetables, forest species, and ornamental plants have been severe in the region. In Grenada alone, it has been estimated that over US$50 million have been lost during 1993/1994, and that about 15,000 farm enterprises have been wiped out as a result of attack by PMB. The spread of the infestation has now been reported in Trinidad and Tobago, St. Lucia, St. Kitts and Nevis, St. Vincent and the Grenadines, and the Windward Islands. Fungal and bacterial diseases have also been identified as significant factors in economic losses of spoilt banana exports and vegetables. Viral diseases, borne by the white fly Bemisia tabaci, are responsible for severe economic losses arising from damage to melons, sweet potatoes, tomatoes and aubergines. The pest, first encountered in the Caribbean region in the mid-1970s, has contributed to estimated losses of US$50 million p.a. in the Dominican Republic. In the framework of joint UNDP/UNESCO collaboration on the application of science and technology for development in the Caribbean, research has been carried out on the control of bacterial spot of pepper and tomato caused by Xanthomonas campestris var. vesicatoria (O'Garro, 1997) The Organization of the Eastern Caribbean States (OECS), which promotes economic integration and encourages export security in small island countries is composed of Member States - Antigua and Barbuda, Dominica, Grenada, St. Kitts and Nevis, St. Lucia, and St. Vincent and the Grenadines. These island states on account of their monocrop economies, fragile ecosystems, location in the hurricane belt between the Atlantic Ocean and the Caribbean Sea, and little size, are extremely vulnerable to the forces of globalized development. The El Niño phenomenon also has a negative impact on crop production in the Caribbean isles. According to the global information and early warning system on food and agriculture, seasonal cereal and bean crops bosses for 1997 have been estimated at about 20 per cent in several Central American and Caribbean countries. Similar loss risks are anticipated in 1998. Shock waves have been witnessed in most of the OECS banana-producing countries as a result of the hurricane storms in 1994 and 1995, and still again by the possible loss, after 2001, of European economic preferences for Caribbean bananas. It is estimated that 4000 to 8000 small farmers, in especially Dominica, St. Lucia, and St. Vincent and the Grenadines, may have to exit the banana industry and re-invest in other ventures. In this regard, cultural tourism seems to be a dominating option. Other options for diversification of agricultural markets are to be found in the cultivation of okra, tomatoes and avocados. On the negative side, the allure of easy revenue makes the illegal cultivation of marijuana an attractive proposition despite the risks involved. Biomethanation programmes in the island states of the Caribbean region have been supported by the Caribbean Development Bank. Jamaica, with funding from the Latin American Energy Organization (OLADE) has been particularly active in experimenting with a variety of biodigester designs and models (Clancy and Hulscher, 1994). Caribbean regional health issues and health-care reforms have benefited from IDB/PAHO* (1) collaboration and the Consultative Group for Caribbean Economic Development (CGCED). Demographic, socio-economic and health indicators in participating countries - Antigua and Barbuda, the Bahamas, Barbados, Belize, Dominica, the Dominican Republic, Grenada, Guyana, Haiti, Jamaica, St. Kitts and Nevis, St. Lucia, St. Vincent and the Grenadines, Trinidad and Tobago, and Suriname, emphasize the need for reducing preventable diseases, and for developing health welfare programmes for aging populations and geriatric diseases. Upward trends have been identified in communicable diseases such tuberculosis and HIV/AIDS, in nutritional deficiencies, and in the re-emergence of malaria, cholera and dengue fever. Over the past decades, about 27 nations with thousands of islands in the Pacific region have emerged with aid through the South Pacific Commission. Like that of the Caribbean, the Pacific region is dependent on a remarkably fragile environment, characterized by limited natural resources, including land, and a high incidence of natural disasters. Traditional cultures have emphasized, unknowingly, environmental management in the Pacific island communities which are confronted daily with the impact of the consumer age, industrialization and, in some areas, unprecedented population growth. The challenge, these nations face today, is to find a balance between conservation and development of the region and its environment in the interests of bettering the quality of life of the Pacific peoples through appropriate scientific programmes. The Pacific region has two major universities, the Papua New Guinea University in Port Moresby and the University of the Southern Pacific with its main campus in Suva, Fiji and a smaller component in Apia, Western Samoa. The nations of the Pacific region share scientific and technological concerns peculiar to their geographic and oceanographic characteristic. They frequently face substantial constraints in terms of scientific, technological, managerial, and economic resources necessary for sustainable, island-wide, maricultural and maritime development. The most important of such developmental and educational issues are microbial aspects related to human health, nutrition, food safety and energy supply. With the help of the Australian National Commission for UNESCO, Massey University and Cawthron Institute in New Zealand and the government authorities of many of the Pacific island nations, a survey, a decade ago by the MIRCEN at the University of Queensland, Brisbane, established that some 50 researchers from 19 countries in over 44 laboratories were desirous of collaborating with each other in the following areas:
At face value, these requirements could be easily met by a transfer of existing microbial technology or the design and development of new appropriate microbial processes (Doelle 1989). However, everyone of these areas requires an infrastructure which is just not available in the Pacific Region. Nevertheless, in a pioneering effort, a Pacific MIRCEN workshop in Fiji on "Agricultural Development in the Pacific Islands in '90" made clear that: At face value, these requirements could be easily met by a transfer of existing microbial technology or the design and development of new appropriate microbial processes (Doelle 1989). However, everyone of these areas requires an infrastructure which is just not available in the Pacific Region. Nevertheless, in a pioneering effort, a Pacific MIRCEN workshop in Fiji on "Agricultural Development in the Pacific Islands in '90" made clear that:
The South Pacific region is composed of a vast number of islands that vary in size from Papua New Guinea with a population of around four million, to Nuie with a population of 2,000. The diversity of plant genetic resources and the availability of other resources such as labour varies though the latter, as a general rule, is always a limiting factor in agricultural production. Daily subsistence is mainly based on agriculture, though some of the islands have adopted a more commercial approach for export purposes. This is the case in Tonga with its production of squash for the Japanese market. Generally-speaking the crops grown throughout the Pacific region are mostly root and tuber crops, banana, and coconut (Table 1). At the moment, the only real application of biotechnology in the region is tissue culture. It was first introduced into the region through the tissue culture laboratory established by the South Pacific Commission (SPC), Plant Protection Service in Fiji with the aim of increasing the number of varieties of the main root and tuber crops available in the Pacific island countries, and to facilitate their distribution through their pathogen-tested status. In the late 1980s another tissue culture laboratory was established on the campus of the University of the South Pacific (USP), Western Samoa to provide security for the germplasm material that was being maintained in Suva, Fiji. This duplicate collection, also enables the distribution of pathogen-tested material, and the facility, where possible, provides training and research services. In 1990, funding from the European Union established the Pacific Regional Agricultural Programme (PRAP) which is comprised of a number of projects based in eight Pacific countries that are amongst the African-Caribbean-Pacific (ACP) group of countries covered by the Lomé Convention. PRAP has been active in the region for seven years, with Phase 1 being completed in 1994. In Phase 1 the aims and objectives of the tissue culture project, located at USP, Apia, Western Samoa, were: the introduction of tissue culture methods for crops important in the region; the provision of germplasm storage for regional crops and the multiplication of traditional and improved varieties important to the region. In order to achieve these results, the unit at USP was modified from a one-room unit to a four-room facility, inclusive of two growth rooms; each with a capacity of 5,000 to 10,000 cultures. One growth room is maintained at a reduced temperature for germplasm storage. Furthermore, a new aphid-proof screenhouse was built with a capacity of 1,000 to 3,000 plants, so that pathogen-tested material could be weaned and maintain their pathogen-tested status. During Phase 1 training of regional staff was an on-going process through workshops, in-depth attachments, and Master degree programmes. Whereas research in the initial seven-year period, concentrated on optimising tissue culture methodology for the more staple root and tuber crops, and developing systems for new crops, e.g. Abelmoschus manihot (bele), on-going training programmes also provided opportunities for in-depth internships and postgraduate formation. Phase 2 of PRAP starting in 1994, changed the emphasis from focusing on a regional facility to that of developing the national capabilities of the non-atoll PACP countries (Vanuatu, Solomon Islands and Fiji) in tissue culture technology; and, strengthening the existing national tissue culture laboratories in Western Samoa, Tonga and Papua New Guinea. The task of PRAP was to resolve bottleneck problems through the provision of equipment, training and technical support. Furthermore, the effective functioning of the national tissue culture laboratories as self-reliant and self-sufficient genebanks, would provide planting material to local growers, thus guaranteeing food security, conservation of plant genetic resources and offer source of ornamental germplasm of export significance. Laboratories now exist in all the non-atoll PRAP countries. Though most of the national laboratories focus on the production of crop plants, the national laboratory at the Nu'u research station in Western Samoa produces orchids and anthuriums for the local market. As with field genebanks throughout the world, losses are occurring at an ever-increasing rate in the South Pacific. Most of the information, on field conservation, which is available for the South Pacific island countries relates to taro and yams. Jackson (1994) recently examined collections of taro and yams established in the 1980s in nine Pacific island countries (Table 2) and found that significant losses have occurred. These have resulted from lack of finances for costly maintenance; inadequate storage facilities, contamination and infection with plant pathogens, and improper protection against cyclonic and drought conditions. In the PRAP regional laboratory in Western Samoa, except for cassava, all the taro, yam, sweet potato and banana collection are maintained at a reduced temperature (20º C) . In collaboration with IPGRI, the laboratory in Apia, at the University of the South Pacific, is involved in a global experiment on in vitro slow growth storage of sweet potato. This project, which initially involved the Pacific and Caribbean regions, and now includes the Philippines, Vietnam and China, aims:
Another area of concern in the South Pacific islands is that of intellectual property rights. The PRAP tissue culture projects first became involved with the issues of intellectual property rights on account of requests from a commercial tissue culture laboratory, outside the Pacific island region for taro germplasm and the relevant multiplication technology (Taylor, 1996). The issue of germplasm exchange that aroused regional interest and concern, has led to the consideration of emerging pressures which emphasise the need for the Pacific island countries to consider some form of intellectual property rights system: These pressures are:
On the issue of genebanks, the regional laboratories in the South Pacific, are responsible for a wide range of crop germplasm originating from many different island countries in Polynesia, Melanesia and Micronesia. These collections were originally assembled on the principle of 'common heritage' in the absence of a defined policy regarding germplasm exchange. Today, with the galloping advances being made in deriving benefits from the applications of biotechnology, the Pacific island countries have become concerned about the possible patenting of their plant and microbial genetic resources. What type of biotechnology development is therefore appropriate to the Caribbean and Pacific Regions? In response, the national economic and social objectives have been identified (FAO, 1992). These deal with the achievement of sustainable growth in the commercial production of quality agricultural products for domestic consumption; and the development of appropriate regional strategies that help to counteract the import-oriented markets that cripple the economies of these regions. These strategies are also of relevance to islands in the Asian and African environments. In the run-up to the new millennium, it is anticipated that all of the tissue culture laboratories in the six non-atoll PACP countries will be functioning well, producing planting material for growers, assisting in the safe importation of plants and conserving some of the region's most important genetic resources. It is hoped that all countries outside of PRAP will also be active in tissue culture, for example Kosrae, American Samoa. To satisfy the demand of a much needed regional service collection, the Oceania plant tissue culture network has been established to ensure regular opportunities for voice, data and increasingly video communications between over 40 sites in the Pacific islands nations through the Pacific Education and Communication Experiments by Satellite (PEACESAT) which is managed by the University of Hawaii in Honolulu. The network also produces a quarterly newsletter with contributions from all members. The feasibility of establishing a regional centre dealing with virus testing, molecular technology, identification of microbial plant pathogens, biocontrol of insects, etc., is seriously being considered. A start has already been made in the area of health care. National networks on occupational safety and health information have been established in small island countries of Fiji and the Solomon Islands. The Occupational Safety and Health Information Centre (CIS) based in Honiara, functions as an international node in the global network on occupational safety and health, jointly sponsored by ILO/FINNIDA*(2). The South Pacific Forum (SPF) established in 1971 as a forum of the governments of the South Pacific-- Australia, Cooks Islands, Fiji, Kiribati, Nauru, New Zealand, Niue, Papua New Guinea, Solomon Islands, Tonga, Tuvalu, Vanuatu, and Western Samoa, to discuss and implement issues of economic and technical interest has already promoted regional co-operation in fields such as:
Furthermore, SPF has contributed to the development of, and now, serves as the depositary of the Convention to Ban the Importation into Forum Island Countries of Hazardous and Radioactive Wastes and to Control the Transboundary Movement and Management of Hazardous Wastes within the South Pacific Region (Waigani Convention). More recently, SPF has been active in the implementation of the South Pacific Regional Environmental Programme (SPREP) for 1997 - 2000 following its adoption in Nuku'alofa, Tonga in December, 1996. Amongst other issues, SPREP deals with the conservation of biological diversity; coastal zone management; and waste management. Conclusion
Despite their fragile economies aspects that are also characteristic of Asian and African small islands (Table 3), and their vulnerability to the vicissitudes of Nature, very few of the Caribbean and Pacific islands are encountered in the category of the least developed countries (Table 4). The new millennium will bring with it the graduation of Samoa from the list. Globalization has embraced the world of islands in Asia, Africa, Europe, the Caribbean and the Pacific regions. As a result, and despite the geographic and economic limitations that slow down the pace of technological advancement, several island nations have embarked upon the path of diversifying and modernising their reliance on traditional agricultural and Nature-given biotech resources. Amongst the various options, virtually all island countries, inclusive of Cyprus and Malta, have adopted high-tech biotechnology, genetic-engineering, and gene-rich microorganisms as strategic mechanisms in ensuring self-reliant development and economic stability for the year 2000 and beyond.
Clancy,J.S. and Hulscher, W.S. (1994). The possibilities of biogas production in developing countries. Special programme for biotechnology development co-operation. Directorate-General for International Co-operation, Ministry of Foreign Affairs, The Hague, Netherlands. Colwell, R.R. (1987). Marine biotechnology and the developing countries. In: Microbial Technology for developing countries, Eds. DaSilva, E.J. et al, Oxford University. Press Oxford, UK, pp. 151-166. DaSilva, E.J. (1998). Biotechnology: Developing Countries and Globalization. World Journal of Microbiology and Biotechnology. 14 (in press). Doelle, H.W. (1989). Socio-economic biotechnology development for developing countries. MIRCEN Journal of Applied Microbiology and Biotechnology. 5: 391-410. Jackson G.V.H. (1994). Taro and Yam resources in the Pacific and Asia, Report for ACIAR and IPGRI, Anutech Pty., Ltd Lembi, A. and Waaland, J.R. (1998). Algae and Human Affairs, Cambridge University Press, London, pp. 590 O'Garro, L. (1997). Prospects for Control of Bacterial Spot of Pepper and Tomato in the Anglophone Eastern Caribbean: A Research Model for the Application of Biotechnology in Small Developing Countries, UNESCO, Port of Spain, pp. 99 FAO, (1992). Current Status and Future Prospects of Modern Biotechnologies in Latin America and the Caribbean. Executive Summary 22nd Regional Conference for Latin America and the Caribbean, 28 September - 2 October, Montevideo, Uruguay. Document LARC/92/4 - W/Z9328/c. Taylor M. (1996) Intellectual property rights and plant germplasm in the South Pacific region. PRAP Working Paper No. 96-3. Suva: Pacific Regional Agricultural Programme (PRAP). Project 7. Provision of tissue Culture Services for the Region.
Table 1. Biotechnology activities in the Caribbean and Pacific islands
Planting Material supplied by the tissue culture laboratory, Barbados
______________________________________________________________________________________ * Projects of Australian Centre of International Agricultural Research ACIAR) in `partner countries in the pacific and in co-operation with the Australian Agency for International Development AusAID). ** Comprised of network institutes in several of the Caribbean islands countries *** Food Species: Dioscorea alata, D. cayanensis, D. esculenta, D. rofundata, and D. trifida. Exports to Canadian markets amount to 2000 t.p.a. **** Pacific Regional Agricultural Programme
Table 2: Taro and yam collections in Pacific island countries
* Ministry of Agriculture, Fisheries, Food and Meteorology
Table 3: Some biotechnological initiatives in African, Arab, Asian and European islands
Table 4: Chronological and historical background: least developed countries
1 = The only LDC to graduate from the list into the Category of Developing Countries after 25 years
(1996) (1)International Development Bank/Pan-American Health Organization |
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