Integrated Management Strategies for Tomato Fusarium Wilt

Ajilogba, Caroline Fadeke

doi:10.4265/bio.18.117

Cited by 95 publications

(64 citation statements)

References 51 publications

(41 reference statements)

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“…Surulirajan and Kandhaari (2003) found that the integrated approach lower down the disease incidence of rice sheath blight and increase rice yield. Agilogba and babalola (2013) reported that the integration of plant-growth-promoting rhizobacteria, acibenzolar-S-methyl and hymexazol for control of Fusarium crown and root rot on tomato. Biswas et al (2009) also found that seed treatment with streptocycline (100 ppm) and foliar spray with streptocycline in combination of copper oxychloride (100 ppm + 500 ppm) gave the best management strategies for management of bacterial leaf blight and also increase higher yield.…”

Section: Yieldmentioning

confidence: 99%

Sustainable Integrated Approach for Management of Fusarium Wilt of Tomato Caused by Fusarium oxysporum f. sp. lycopersici (Sacc.) Synder and Hansen

Singh¹,

Biswas²,

Nagar³

et al. 2015

SAR

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Integration of different methods for sustainable management of Fusarium wilt of tomato revealed that all the treatments were able to significantly reduce the disease severity over control. Among the treatments, the minimum disease severity was recorded in the T 3 treatment where treatment was given as seed treatment with T. harzianum + soil application of neem cake powder + foliar spray of carbendazim, representing the value 4.82, 8.23, 12.37 and 16.37 per cent against 10.75, 14.84, 20.00 and 25.75 per cent in case of control at 30, 45, 60 and 75 days age of plant, respectively. Integrated approach has also been able to increase shoot length as 27.00, 42.15, 54.98, and 65.07 cm at 30, 45, 60 and 75 days age of plant, respectively whereas in case of control it was 18.60, 25.70, 34.63 and 44.29. Similarly, fresh and dry shoot and root weight have also been found increased in case of integrated approaches. Biochemical analysis of the treated plants revealed that highest soluble protein and total phenol content is observed in T3 treatment (Seed treatment with T. harzianum + soil treatment with neem cake powder and foliar spray with carbendazim), showing 37.85, 36.78 and 35.76 mg/gm of fresh leave of protein and 2.40, 2.14 and 2.04 mg/gm of fresh leave of phenol at 30, 45 and 60 days age of plant. As per yield is concerned, it has found that the maximum yield was obtained per plant from the treatment given as seed treatment with T. harzianum + soil treatment with neem cake powder + foliar spray with carbendazim, showing the value of 500 g per plant which was followed by the treatment given as seed treatment with T. harzianum + soil treatment with neem cake powder + foliar spray with neem leaf extract showing 470 g per plant.

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Section: Yieldmentioning

confidence: 99%

Sustainable Integrated Approach for Management of Fusarium Wilt of Tomato Caused by Fusarium oxysporum f. sp. lycopersici (Sacc.) Synder and Hansen

Singh¹,

Biswas²,

Nagar³

et al. 2015

SAR

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“…For example two reports, Abdallah et al (2010) and Khan et al (2011) successfully created Fusarium oxysporum f. sp. Lycopersici resistant GM lines through over expressing defensin genes, small cysteine rich proteins (Stotz et al, 2009 (Ajilogba and Babalola, 2013). Despite these findings, R genes are still considered the most promising mechanism of resistance in plants.…”

Section: Tomato and Fusarium Wiltmentioning

confidence: 99%

Understanding the structure and variation within the genome of the pathogenic ascomycete fungus Leptosphaeria maculans

Zander¹

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The ascomycete fungus Leptosphaeria maculans is a major pathogen of Brassica species, particularly canola (Brassica napus; rapeseed; oil-seed rape), and the primary cause of crop losses of canola in Australia, causing blackleg disease. L. maculans, a filamentous ascomycete, is the causal agent of phoma stem canker, commonly referred to as blackleg.In late stages of infection, it spreads through the stem vasculature causing lesions, leading to poor growth, lodging and eventually plant death. This fungus is found in canola-growing regions worldwide such as Australia, Canada and Europe. Increased production of canola in these regions has led to a rise in the severity of the disease. In Australia alone, L. maculans infection is responsible for an estimated Australian $100 million in crop losses each year, with average losses ranging from 15-48 % and significant efforts are underway to improve resistance to this disease.Understanding the characteristics of L. maculans is vital for developing an effective and sustainable approach to the management of blackleg disease on Brassica species. The completion of the L. maculans genome sequence was a significant development in the study of this fungal pathogen and provides a reference genome to which molecular markers can be physically mapped. This has been highly useful in other plant pathogens with sequenced genomes, such as the wheat pathogen Parastagonospora nodorum and the cereal pathogen Fusarium graminearum. Importantly, a reference genome also allows mapping of whole genome re-sequencing data, which is becoming a high-throughput, costeffective method to study genome-wide diversity, particularly for the relatively small, lower complexity genomes of many fungal species. By re-sequencing the genome of different L. maculans isolates, variations in genome sequence and structure can be elucidated.Advances in genome sequencing technologies have revolutionised plant and fungal genomics. They have made genome sequencing, re-sequencing and Single Nucleotide Polymorphism (SNP) discovery highly accessible, high-throughput and cost-effective. The process of whole genome re-sequencing involves aligning millions of short sequence reads to a reference genome sequence. Once this has been achieved, it is possible to identify genetic variation between individuals, which can be linked to variation in phenotype to provide molecular genetic markers and insights into gene function.Sequence variation can have a major impact on how an organism develops and responds to the environment. III | P a g eThis thesis describes the implementation of several approaches to elucidating the genome structure and variation of a number of L. maculans isolates, including SNPs and presence/absence variations (PAVs).Initially, the re-sequencing of two L. maculans isolates for the identification of 21,814 SNPs was performed. I demonstrated the application of a novel SNP calling method, SGSautoSNP and its robustness and sensitivity in identifying polymorphisms in L.maculans. I described the use of these S...

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“…Cultural control encompasses farming techniques that will help to raise the quality and quantity of the crop yield and decreases the influence of diseases (Ajilogba and Babalola 2013).…”

Section: Cultural Controlmentioning

confidence: 99%

Sustainable management strategies for bacterial wilt of sweet peppers ( Capsicum annuum ) and other Solanaceous crops

2020

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Pepper bacterial wilt is caused by the bacterial pathogen, Ralstonia solanacearum. It is the most destructive disease of many Solanaceous crops such as potatoes, tobacco, pepper, tomatoes and eggplant and is a significant source of crop loss worldwide. Physical, cultural and chemical controls have been employed to combat this destructive disease. However, none of these strategies has been able to control the disease completely due to the broad host range and genetic diversity of the pathogen, its prolonged survival in the soil and survival on vegetation as a latent infection. Owing to co-management strategies, biological control is the best approach for human health and environmental friendly motivations. It makes use of various antagonistic rhizobacteria and epiphytic species such as Bacillus cereus, Pseudomonas putida, Bacillus subtilis, Paenibacillus macerans, Serratia marcescens, Bacillus pumilus and Pseudomonas fluorescens, which compete with and ultimately inhibit the growth of the pathogen. The possible mechanisms of biocontrol by these species involve multifaceted interactions between the host, pathogen and the antagonists. These can involve competition for nutrients and space, plant-mediated systemic resistance, siderophore production and production of extracellular cell wall degrading enzymes to inhibit or suppress the growth of the bacterial wilt agent.

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Integrated Management Strategies for Tomato Fusarium Wilt

Cited by 95 publications

References 51 publications

Sustainable Integrated Approach for Management of Fusarium Wilt of Tomato Caused by Fusarium oxysporum f. sp. lycopersici (Sacc.) Synder and Hansen

Sustainable Integrated Approach for Management of Fusarium Wilt of Tomato Caused by Fusarium oxysporum f. sp. lycopersici (Sacc.) Synder and Hansen

Understanding the structure and variation within the genome of the pathogenic ascomycete fungus Leptosphaeria maculans

Sustainable management strategies for bacterial wilt of sweet peppers ( Capsicum annuum ) and other Solanaceous crops

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