First Report of &lt;i&gt;Fusarium proliferatum&lt;/i&gt; Causing Rot of Onion Bulbs (&lt;i&gt;Allium cepa&lt;/i&gt; L.) in India

Ravi, Sridevi; Nagalakshmi, D M; Bagyanarayana, G.

doi:10.4314/star.v3i2.1

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…Indeed, the work of Stankovic [16] revealed that F. proliferatum was an important pathogen on onion and garlic (Allium sativum) in Europe and that there was a potential risk of mycotoxin accumulation in contaminated plants of these two crops. F. proliferatum has also been found responsible for onion and garlic bulb rots in Argentina [33] and India [34]. The pathogenicity of F. oxysporum, F. proliferatum and F. solani on onions had also been reported by several authors [8] [16] [27].…”

Section: Discussionmentioning

confidence: 75%

Determination of Fusarium Species Associated with Onion Plants (Allium cepa) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Kintega¹,

Zida²,

Soalla³

et al. 2020

AJPS

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Onion (Allium cepa L.) is the second most important vegetable crop in Burkina Faso and provides an important source of income for those involved in the sector. However, producers are facing significant pre-harvest and post-harvest losses. To date, knowledge of major diseases of the crop is limited, limiting the development of effective control strategies. The objective of this study was to test the pathogenicity of some species of Fusarium. To this end, 33 fungal isolates collected from onion plants in 17 localities and belonging to five Fusarium species were used to inoculate onion seeds and bulbs to determine the pathogenic species responsible for damping-off on seedlings and basal bulb rot in Burkina Faso. The virulence of pathogenic isolates was determined according to the percentages of seedling damping-off evaluated 28 Days After Sowing, and the extent of rot in millimetres on inoculated bulbs. The evaluation of isolates on seedlings revealed that the most pathogenic isolates belong to the species F. proliferatum (I29, I21, I37, I33, I31), F. thapsinum (I35) and F. solani (I38) which resulted in 58.33% -70.83% of seedling damping-off. The most pathogenic isolates on bulbs belong to the species F. proliferatum (I4, I29, I32) and F. oxysporum (I52, I50, I16) which caused 21.67 to 25 mm of rot on bulbs. Isolate I29 was very virulent on both seedlings and bulbs. The isolates of F. fujikuroi species were all low pathogenic on seedlings but one of them, (I27), expressed average pathogenicity on bulbs.

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Section: Discussionmentioning

confidence: 75%

Determination of Fusarium Species Associated with Onion Plants (Allium cepa) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Kintega¹,

Zida²,

Soalla³

et al. 2020

AJPS

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“…Globally, FBR of Allium spp. has been reported in Asia, Europe, the Americas, and Africa (Dauda et al 2018;Dugan et al 2003;Fletcher et al 2017;Gálvez 2017;Gunaratna et al 2019;Koike et al 2003;Quesada-Ocampo et al 2014;Ravi et al 2014;Le et al 2020). The disease has been associated with different species of Fusarium, including F. oxysporum, F. proliferatum, F. solani, F. acuminatum, F. redolens, F. verticillioides, F. equiseti, F. culmorum, F. falciforme and F. brachygibbosum, of which F. oxysporum and F. proliferatum are the most prevalent (Table 1).…”

Section: Causal Agents Of Fbrmentioning

confidence: 94%

Fusarium basal rot: profile of an increasingly important disease in Allium spp.

Audenaert

Haesaert

2021

Trop. plant pathol.

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Fusarium basal rot (FBR) is a soil-borne disease that affects Allium species worldwide. Although FBR has long been recognized as a major constraint to the production of economically important Allium species, information that could support disease management remains scattered. In this review, the current knowledge on the causal agents, symptomology and epidemiology, impact, and management strategies of FBR is synthesized. We highlight that FPR is associated with different complexes of several Fusarium species, of which Fusarium oxysporum and F. proliferatum are the most prevalent. These pathogenic complexes vary in composition and virulence, depending on sites and hosts, which can be challenging for disease management. Research to improve disease management using chemical pesticides, resistance cultivars, biocontrol agents, and cultural practices has achieved both promising results and limitations. Finally, research needs and future directions are proposed for the development of effective FBR management strategies.

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“…Ravi et al [ 22 ] observed the FBR incidence on onion bulbs in major growing areas of the Kadapa and Kurnool districts of Andhra Pradesh and reported F. proliferatum as the causal agent of FBR. Recently, F. falciforme [ 13 ] and F. acutatum [ 24 ] were also reported in Karnataka as causal agents of FBR.…”

Section: Discussionmentioning

confidence: 99%

“…In India, since 1963, FBR has been known to be caused by Fusarium oxysporum f. sp. cepae [ 21 ], and in 2014, Ravi et al [ 22 ] reported the association of F. proliferatum in basal rot in Andhra Pradesh [ 23 ] and then F. falciforme [ 13 ] and F. acutatum [ 24 ] causing FBR in Karnataka.…”

Section: Introductionmentioning

confidence: 99%

Active Prevalence of Fusarium falciforme and F. acutatum Causing Basal Rot of Onion in Maharashtra, India

Dutta,

Jayalakshmi,

Radhakrishna

et al. 2024

JoF

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Over the past decade, there have been accumulating reports from researchers, farmers, and field extension personnel on the increasing incidence and spread of onion basal rot in India. Onion basal rot disease is mainly caused by Fusarium spp. This study aimed to validate the information on the active prevalence of F. falciforme and F. acutatum causing Fusarium basal rot (FBR) in Maharashtra. A survey was conducted, and the infected plants/bulbs were collected from fields of 38 locations comprising five districts of Maharashtra, namely, Nashik, Aurangabad, Solapur, Ahmednagar, and Pune, in 2023. This disease was prevalent in high-moisture and high-oil-temperature conditions and the symptoms were observed in most of the fields, with the FBR incidence ranging from 17 to 41%. The available data of basal rot incidence from 1998 to 2022 were analyzed, based on which the prevalence of FBR was 11–50%. Tissue from the infected samples of onion bulbs was used for the isolation. The identification was performed based on colony morphology and microscopic features and confirmed through molecular markers using ITS and Tef-1α gene primers. Of the ten Fusarium isolates collected from selected locations, six species were confirmed as F. acutatum and four as F. falciforme. The pathogenicity tests performed with onion seedlings and bulbs under moist conditions proved that both F. acutatum and F. falciforme independently could cause basal rot disease symptoms but with different degrees of virulence. Koch’s postulates were confirmed by reisolating the same pathogens from the infected plants. Thus, the active prevalence of FBR was confirmed in Maharashtra and also, to the best of our knowledge, this is the first report of F. falciforme and F. acutatum causing basal rot of onion independently in Maharashtra, India.

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First Report of <i>Fusarium proliferatum</i> Causing Rot of Onion Bulbs (<i>Allium cepa</i> L.) in India

Cited by 4 publications

References 11 publications

Determination of <i>Fusarium</i> Species Associated with Onion Plants (<i>Allium cepa</i>) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Determination of <i>Fusarium</i> Species Associated with Onion Plants (<i>Allium cepa</i>) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Fusarium basal rot: profile of an increasingly important disease in Allium spp.

Active Prevalence of Fusarium falciforme and F. acutatum Causing Basal Rot of Onion in Maharashtra, India

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First Report of <i>Fusarium proliferatum</i> Causing Rot of Onion Bulbs (<i>Allium cepa</i> L.) in India

Cited by 4 publications

References 11 publications

Determination of &lt;i&gt;Fusarium&lt;/i&gt; Species Associated with Onion Plants (&lt;i&gt;Allium cepa&lt;/i&gt;) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Determination of &lt;i&gt;Fusarium&lt;/i&gt; Species Associated with Onion Plants (&lt;i&gt;Allium cepa&lt;/i&gt;) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Fusarium basal rot: profile of an increasingly important disease in Allium spp.

Active Prevalence of Fusarium falciforme and F. acutatum Causing Basal Rot of Onion in Maharashtra, India

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Determination of <i>Fusarium</i> Species Associated with Onion Plants (<i>Allium cepa</i>) in Field in Burkina Faso Causing Damping-Off and Bulb Rots

Determination of <i>Fusarium</i> Species Associated with Onion Plants (<i>Allium cepa</i>) in Field in Burkina Faso Causing Damping-Off and Bulb Rots