Hidden Secrets of Mangrove Swamp Rice Stored Seeds in Guinea-Bissau: Assessment of Fungal Communities and Implications for Food Security

被引:1
|
作者
Conde, Sofia [1 ,2 ]
Barai, Amidu [2 ,3 ,4 ]
Catarino, Silvia [5 ,6 ]
Costa, Goncalo J. [7 ]
Ferreira, Sonia [8 ,9 ]
Tavares, Idilia [3 ]
Ferreira, Maria Rosa [3 ]
Temudo, Marina Padrao [1 ]
Monteiro, Filipa [2 ,5 ,6 ]
机构
[1] Univ Lisbon, Forest Res Ctr, Sch Agr, Associate Lab TERRA,CEF, P-1349017 Lisbon, Portugal
[2] Univ Lisbon, Linking Landscape Environm Agr & Food Res Ctr, Sch Agr, Associated Lab TERRA,LEAF, P-1349017 Lisbon, Portugal
[3] Granja Pessube Minist da Agr e Desenvolvimento Rur, Direcao Serv Protecao Vegetal, Lab Protecao Vegetal, LPV, POB 71, Bissau, Guinea Bissau
[4] Granja Pessube Minist Agr & Desenvolvimento Rural, INPA, Inst Nacl Pesquisa Agr, POB 71, Bissau, Guinea Bissau
[5] Univ Lisbon, Fac Sci, Ctr Ecol Evolut & Environm Changes cE3c, P-1749016 Lisbon, Portugal
[6] Univ Lisbon, Global Change & Sustainabil Inst, Fac Sci, CHANGE, P-1749016 Lisbon, Portugal
[7] Cricket Farming Co Ltd, Quinta Galinheiro S Pedro, P-1001904 Santarem, Portugal
[8] Univ Porto, Ctr Invest Biodiversidade & Recursos Genet, InBIO Lab Associado, CIBIO, Campus Vairao, BR-4485661 Vairao, Portugal
[9] BIOPOLIS Program Genom Biodivers & Land Planning, CIBIO Campus Vairao, P-4485661 Vairao, Portugal
来源
AGRONOMY-BASEL | 2024年 / 14卷 / 08期
关键词
storage structures; West Africa; seed-borne fungi; Oryza sativa; Oryza glaberrima; DNA barcoding; PERFORMANCE; AFLATOXINS; MYCOTOXINS; GROWTH; PLANT; GRAIN; TOOL;
D O I
10.3390/agronomy14081870
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Rice cultivation is one of the most important agro-economic activities in many countries, and the correct seed storage between production cycles is essential for crop success. In Guinea-Bissau, mangrove swamp rice (MSR) is a highly productive rice cropping system, thus providing surplus for sale. Depending on storage conditions, rice grains may present moisture, insects, or the development of fungi that might affect crop productivity. Considering different rice varieties and storage conditions, samples were collected from 30 farmers within 13 villages across the main MSR-producing regions. Stored rice was used to isolate and identify seed-borne fungi through DNA barcoding, to test aflatoxin content, and to evaluate seed germination rates. Polyethylene bags (the container), raised wooden platforms, and storage rooms (the structures) are the most used facilities. Hermetic containers were recorded mainly in Oio. A total fungal richness of 18 genera was found, and 16 different species were identified. The most represented fungal genera are Aspergillus, Curvularia, and Bipolaris. Despite the presence of aflatoxin-producing fungal samples, they did not present concerning levels for human consumption, and the germination rate was not affected regardless of storage structures. These results provide a baseline on fungi occurrence in stored MSR seeds from traditional facilities in Guinea-Bissau.
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页数:21
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