Racial Structure of Fusarium Oxysporum F. Sp. Cubense in the Canary Islands

Guijarro, V.M. Regalado; Hernandez, J. M. Hernandez

doi:10.17660/actahortic.1998.490.31

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In some cases, however, incidence has been reported to be much higher causing more than 30% of crop loss in specific spots (Rodríguez Serrano, 2012). Studies carried out to determine the racial structure and pathogenicity of Foc isolates obtained from infected plants and soils of “Dwarf Cavendish” and “Grande Naine” plantations pointed to the fact that there are no differences among pathogen populations (Regalado Guijarro and Hernández Hernández, 1998). The presence and virulence of Foc STR4 have been well determined in Tenerife, and this race has also been claimed to be responsible for Dwarf Cavendish infections occurring in Gran Canaria island (Ploetz et al, 1990; Domínguez-Hernández et al, 2008).…”

Section: Disease Impact On Banana Production …mentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

View full text Add to dashboard Cite

In the last century, the banana crop and industry experienced dramatic losses due to an epidemic of Fusarium wilt of banana (FWB), caused by Fusarium oxysporum f.sp. cubense ( Foc ) race 1. An even more dramatic menace is now feared due to the spread of Foc tropical race 4. Plant genetic resistance is generally considered as the most plausible strategy for controlling effectively such a devastating disease, as occurred for the first round of FWB epidemic. Nevertheless, with at least 182 articles published since 1970, biological control represents a large body of knowledge on FWB. Remarkably, many studies deal with biological control agents (BCAs) that reached the field-testing stage and even refer to high effectiveness. Some selected BCAs have been repeatedly assayed in independent trials, suggesting their promising value. Overall under field conditions, FWB has been controlled up to 79% by using Pseudomonas spp. strains, and up to 70% by several endophytes and Trichoderma spp. strains. Lower biocontrol efficacy (42–55%) has been obtained with arbuscular mycorrhizal fungi, Bacillus spp., and non-pathogenic Fusarium strains. Studies on Streptomyces spp. have been mostly limited to in vitro conditions so far, with very few pot-experiments, and none conducted in the field. The BCAs have been applied with diverse procedures (e.g., spore suspension, organic amendments, bioformulations, etc.) and at different stages of plant development (i.e., in vitro , nursery, at transplanting, post-transplanting), but there has been no evidence for a protocol better than another. Nonetheless, new bioformulation technologies (e.g., nanotechnology, formulation of microbial consortia and/or their metabolites, etc.) and tailor-made consortia of microbial strains should be encouraged. In conclusion, the literature offers many examples of promising BCAs, suggesting that biocontrol can greatly contribute to limit the damage caused by FWB. More efforts should be done to further validate the currently available outcomes, to deepen the knowledge on the most valuable BCAs, and to improve their efficacy by setting up effective formulations, application protocols, and integrated strategies.

show abstract

Section: Disease Impact On Banana Production …mentioning

confidence: 99%

Biological Control Agents Against Fusarium Wilt of Banana

et al. 2019

View full text Add to dashboard Cite

show abstract

Current status of vegetative compatibility groups inFusarium oxysporum: Supplement (1999)

Katan

Primo

1999

Phytoparasitica

View full text Add to dashboard Cite

Soil Potassium Indices and Clay‐Sized Particles affecting Banana‐Wilt Expression Caused by Soil Fungus in Banana Plantation Development on Transported Volcanic Soils

Domínguez‐Hernández

Negrín

Rodríguez

2008

Communications in Soil Science and Plant Analysis

View full text Add to dashboard Cite

Relations among the expression of banana disease symptoms caused by the soil fungus Fusarium oxysporum f. sp. cubense, soil potassium (K) -sodium (Na) properties [soluble K-Na ratios (SK/SS), potential buffering capacity for K (KBC), potassium adsorption ratio (KAR)], and clay-sized particles were evaluated in Sorribas plots from the Canary Islands. Soils were sampled in areas of Sorribas where banana plants show positive or negative wilting symptoms characteristic of Panama disease. The Bartoli method was used for soil dispersion (Na resin). This method was able to show a clear separation between diseased and disease-free areas by the amount of clay-sized particles. Results also show that the greatest SK/SS ratios and clay-sized particles in soils from diseased areas could explain the increase of water-stable aggregate mass in these soils and the release of available iron (Fe) to soil solution in diseased areas, at least in Sorribas cultivated soils under the arid climate conditions of the Canary Islands.

show abstract

Racial Structure of Fusarium Oxysporum F. Sp. Cubense in the Canary Islands

Cited by 4 publications

References 0 publications

Biological Control Agents Against Fusarium Wilt of Banana

Biological Control Agents Against Fusarium Wilt of Banana

Current status of vegetative compatibility groups inFusarium oxysporum: Supplement (1999)

Soil Potassium Indices and Clay‐Sized Particles affecting Banana‐Wilt Expression Caused by Soil Fungus in Banana Plantation Development on Transported Volcanic Soils

Contact Info

Product

Resources

About