Kiwifruit bacterial canker: an integrative view focused on biocontrol strategies

Pereira, Carla; Costa, Paulo; Pinheiro, Larindja A. M.; Balcão, Victor M.; Almeida, Adelaide

doi:10.1007/s00425-020-03549-1

Cited by 47 publications

(38 citation statements)

References 190 publications

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“…However, effective management would not be achieved without proper management procedures in the field including orchard hygiene, controlled access to orchards, monitoring grafting and use of nutrients for a healthier orchard. In addition, due to environmental concerns about application of chemicals, alternative methods such as biocontrol strategies using specific bacteriophages to eliminate Psa are currently under study and some already showed promising results [81].…”

Section: Discussionmentioning

confidence: 99%

The Potential Global Climate Suitability of Kiwifruit Bacterial Canker Disease (Pseudomonas syringae pv. actinidiae (Psa)) Using Three Modelling Approaches: CLIMEX, Maxent and Multimodel Framework

Narouei‐Khandan

Worner

Viljanen‐Rollinson

et al. 2022

Climate

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In recent years, outbreaks of kiwifruit bacterial canker (Pseudomonas syringae pv. actinidiae Psa) have caused huge economic losses to two major global kiwifruit producers, Italy and New Zealand. To evaluate the potential global risk areas of Psa, three modelling methods (MaxEnt, CLIMEX and a multimodel framework, including support vector machines or SVM) were used. Current global occurrence data for Psa were collected from different sources. The long-term climate data were sourced from WorldClim and CliMond websites. The model results were combined into a consensus model to identify the hotspots. The consensus model highlighted the areas where two or three models agreed on climate suitability for Psa. All three models agreed with respect to the climate suitability of areas where Psa is currently present and identified novel areas where Psa has not established yet. The SVM model predicted large areas in Central Asia, Australia, and Europe as more highly suitable compared to MaxEnt and CLIMEX. Annual mean temperature and annual precipitation contributed most to the MaxEnt prediction. Both MaxEnt and CLIMEX showed the probability of Psa establishment increased above 5 °C and decreased above 20 °C. The annual precipitation response curve showed that excessive rain (>1200 mm/y) constrains Psa establishment. Our modelling results will provide useful information for Psa management by highlighting the climatically susceptible areas where Psa has not established, such as the USA, Iran, Denmark, Belgium and especially South Africa, where kiwifruit has been planted commercially in recent years.

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Section: Discussionmentioning

confidence: 99%

The Potential Global Climate Suitability of Kiwifruit Bacterial Canker Disease (Pseudomonas syringae pv. actinidiae (Psa)) Using Three Modelling Approaches: CLIMEX, Maxent and Multimodel Framework

Narouei‐Khandan

Worner

Viljanen‐Rollinson

et al. 2022

Climate

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“…The use of phages is not allowed in Europe. However, the U.S. Food and Drug Administration (FDA) has approved two phage preparations, designated “EcoShield™” developed by Intralytix, Inc. (Baltimore, MD, USA) and PhageGuard E from Micreos Food Safety (Wageningen, The Netherlands) to reduce E. coli O157:H7 in various foods [ 12 ]. Moreover, in developed countries such as the USA, Canada, Australia and New Zealand, food law policies have already been updated regarding phage applications [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

“…Since then, the regulator has significantly increased the research and development of new phage-based technologies for the control of different pathogens in post-harvest foods [ 11 ]. Resulting in the development and approval of phage products such as EcoShield™, SalmoLyse ® , and ShigaShield™ from Intralytix Inc. (Baltimore, MD, USA); SalmoPro ® from PhageLux (Montreal, QC, Canada) and PhageGuard S™, PhageGuard Listex™and PhageGuard E™ from Micreos Food Safety (Wageningen, The Netherlands) for biotherapeutic application in food [ 8 , 12 ]. The application of lytic phages has been suggested as a method of mitigating E. coli in foods such as beef [ 13 , 14 , 15 ], tomato [ 15 ], spinach [ 15 ], broccoli [ 15 ], cantaloupes [ 16 ], lettuce [ 16 , 17 , 18 ], bivalves [ 19 , 20 ], milk [ 21 , 22 ], lamb and mutton [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Combined Effect of Phage phT4A and Pressure-Based Strategies in the Inhibition of Escherichia coli

et al. 2022

Self Cite

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The major concern regarding the bacteriophage (or phage) therapy approach is the regrowth of bacteria after treatment, a consequence of the emergence of phage-resistant mutants. However, this limitation can be overcome by combining different therapies. In this study, the potential of combining phage phT4A with pressure storage (HS) to enhance the control of Escherichia coli and bacterial regrowth after treatment was evaluated. For that, the combining effect of phage phT4A and HS was studied and compared with storage at atmospheric pressure (AP) under refrigeration (4 °C, RF) and room temperature (RT). Initially, the effect of high hydrostatic pressure (200, 300 and 400 MPa) and HS (75 MPa), as well as refrigeration in phage phT4A viability, was determined. However, a considerable phage inactivation was verified at 200 MPa and so only HS at 75 MPa was further studied for combined treatment. The combined treatment with phage phT4A and HS was more efficient (reduction of 2.5 log CFU/mL after 7 days of storage) than phage phT4A (E. coli concentration was similar to that of the bacterial control after 7 days of storage) and HS (reduction of 1.8 log CFU/mL after 7 days of storage) applied individually. The combination of phage phT4A with refrigerated storage did not decrease E. coli levels. However, both the combination of phage with HS and the treatment with HS at 75 MPa effectively reduced E. coli concentration and prevented its regrowth. Phage phT4A viability was slightly affected during HS; however, the efficiency of the combined treatment phage-HS was not compromised. Further studies are needed to validate these findings in food products.

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“…However, many diseases have appeared in kiwifruit plants, and the types of pathogens have become increasingly diverse, including Botryosphaeria dothidea [ 8 ], Alternaria alternata [ 9 ], and Phomopsis longicolla [ 10 ] that cause soft rot; Pseudomonas syringae pv. actinidiae [ 11 ] that causes canker; Colletotrichum acutatum [ 12 ] that causes anthracnose; and Pseudomonas viridiflava [ 13 , 14 ] that causes bacterial blossom blight. These diseases limit the sustainable development of the kiwifruit industry.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Testing of Natural Antifungal Agents on Fusarium fujikuroi to Investigate the Potential for Sustainable Control of Kiwifruit Leaf Spot Disease

Chen

Dai

et al. 2022

JoF

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Kiwifruit is a nutritious and economically important fruit that is widely cultivated in China. In 2021, leaf spot disease of kiwifruit was discovered in the main kiwifruit-producing area of Xifeng County, Guizhou Province, China. Leaf spot disease weakens plant photosynthesis and reduces nutrient synthesis, thereby affecting plant growth. We studied the morphological characteristics and performed a combined analysis of EF-1α, RPB2, and TUB2 genes of Fusarium fujikuroi, a fungus associated with leaf spot disease. The pathogenicity of F. fujikuroi followed Koch’s hypothesis, confirming that this fungus is the cause of kiwifruit leaf spot disease. The sensitivity of seven natural antifungal agents against F. fujikuroi was measured using the mycelial growth rate method. Honokiol, cinnamaldehyde, and osthol showed good antifungal effects against F. fujikuroi, with EC50 values of 18.50, 64.60, and 64.86 μg/mL, respectively. The regression coefficient of cinnamaldehyde was the largest at 2.23, while that of honokiol was the smallest at 0.408. Fusarium fujikuroi was the most sensitive to cinnamaldehyde.

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Kiwifruit bacterial canker: an integrative view focused on biocontrol strategies

Cited by 47 publications

References 190 publications

The Potential Global Climate Suitability of Kiwifruit Bacterial Canker Disease (Pseudomonas syringae pv. actinidiae (Psa)) Using Three Modelling Approaches: CLIMEX, Maxent and Multimodel Framework

The Potential Global Climate Suitability of Kiwifruit Bacterial Canker Disease (Pseudomonas syringae pv. actinidiae (Psa)) Using Three Modelling Approaches: CLIMEX, Maxent and Multimodel Framework

Combined Effect of Phage phT4A and Pressure-Based Strategies in the Inhibition of Escherichia coli

Sensitivity Testing of Natural Antifungal Agents on Fusarium fujikuroi to Investigate the Potential for Sustainable Control of Kiwifruit Leaf Spot Disease

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