Identification of Fusarium Species Associated with Onion (Allium cepa L.) Plants in Field in Burkina Faso - Advances in Bioscience and Biotechnology

ABB > Vol.11 No.3, March 2020

Advances in Bioscience and Biotechnology

Volume 11, Issue 3 (March 2020)

ISSN Print: 2156-8456 ISSN Online: 2156-8502

Google-based Impact Factor: 1.18 Citations h5-index & Ranking

Identification of Fusarium Species Associated with Onion (Allium cepa L.) Plants in Field in Burkina Faso ()

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DOI: 10.4236/abb.2020.113008 880 Downloads 1,850 Views Citations

Author(s)

Konwendé Raïssa Kintega^1,2*, P. Elisabeth Zida¹, Vianney W. Tarpaga¹, Philippe Sankara², Paco Sereme¹

Affiliation(s)

¹Laboratoire de Phytopathologie Institute de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou, Burkina Faso.
²Université Joseph Ki-ZERBO, Ouagadougou, Burkina Faso.

ABSTRACT

Many fungi limit onion production in Burkina Faso. This study aims to identify the main Fusarium species associated with onion plant in field in order to determine those involved in seedling damping-off and bulb rot, and develop adequate management strategies of these diseases. For this purpose, 36 isolates of Fusarium were isolated from onion plants in 17 sites and subjected to molecular analysis and biometric characterization. The results revealed that the isolates belong to five Fusarium species: Fusarium oxysporum (44.44% of the isolates), Fusarium proliferatum (41.66%), Fusarium solani (5.55%), Fusarium fujikuroi (5.55%) and Fusarium thapsinum (2.77%). Fusarium oxysporum, F. proliferatum, F. solani and F. fujikuroi had faster mycelial development, with a growth rate of 7.72 - 8.27 mm/d, than F. thapsinum (6.52 mm/d). Conidia of F. oxysporum, F. proliferatum and F. solani were longer (4.74 - 5.96 μm) than those of F. fujikuroi and F. thapsinum (3.20 - 4.04 μm). Fusarium solani and F. oxysporum, respectively, had the largest and most partitioned conidia.

KEYWORDS

Allium cepa, Fusarium, Molecular Identification, Biometric Characterization, Fungal Rot

Share and Cite:

Kintega, K. , Zida, P. , Tarpaga, V. , Sankara, P. and Sereme, P. (2020) Identification of Fusarium Species Associated with Onion (Allium cepa L.) Plants in Field in Burkina Faso. Advances in Bioscience and Biotechnology, 11, 94-110. doi: 10.4236/abb.2020.113008.

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