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Check the list of papers from NScTI Citrus
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2022
Dilarri, Guilherme; Zamuner, Caio Felipe Cavicchia; Bacci, Mauricio; Ferreira, Henrique
Evaluation of calcium hydroxide, calcium hypochlorite, peracetic acid, and potassium bicarbonate as citrus fruit sanitizers Journal Article
In: Journal of Food Science and Technology, vol. 59, iss. 5, pp. 1739-1747, 2022, ISSN: 09758402.
Abstract | Links | BibTeX | Tags: Citrus canker, Orange, Packinghouse, Post-harvest sanitization, Sodium hypochlorite, Xanthomonas citri subsp. citri
@article{Dilarri2022,
title = {Evaluation of calcium hydroxide, calcium hypochlorite, peracetic acid, and potassium bicarbonate as citrus fruit sanitizers},
author = {Guilherme Dilarri and Caio Felipe Cavicchia Zamuner and Mauricio Bacci and Henrique Ferreira},
url = {https://link.springer.com/article/10.1007/s13197-021-05185-3},
doi = {10.1007/S13197-021-05185-3/METRICS},
issn = {09758402},
year = {2022},
date = {2022-01-01},
journal = {Journal of Food Science and Technology},
volume = {59},
issue = {5},
pages = {1739-1747},
publisher = {Springer},
abstract = {Xanthomonas citri (X. citri) is a quarentenary plant pathogen and the causal agent of the citrus canker. X. citri forms biofilms and remains fixed on the surface of plant tissues, especially on leaves and fruits. Considering this, all the citrus fruits have to be sanitized before they can be commercialized. NaOCl is the main sanitizer used to decontaminate fruits in the world. Due to its toxicity, treatment with NaOCl is no longer accepted by some Europe Union countries. Therefore, the aim of this work was to evaluate potassium bicarbonate (KHCO3), calcium hydroxide (Ca(OH)2), calcium hypochlorite (Ca(OCl)2) and peracetic acid (CH3CO3H) as alternatives to NaOCl for the sanitization of citrus fruit. By monitoring cell respiration and bacterial growth, we determined that peracetic acid and calcium hypochlorite exhibit bactericidal action against X. citri. Time-response growth curves and membrane integrity analyses showed that peracetic acid and calcium hypochlorite target the bacterial cytoplasmatic membrane, which is probably responsible for cell death in the first minutes of contact. The simulation of the sanitization process of citrus fruit in packinghouses showed that only peracetic acid exhibited a performance comparable to NaOCl. Among the tested compounds, peracetic acid constitutes an efficient and safer alternative to NaOCl.},
keywords = {Citrus canker, Orange, Packinghouse, Post-harvest sanitization, Sodium hypochlorite, Xanthomonas citri subsp. citri},
pubstate = {published},
tppubtype = {article}
}
Xanthomonas citri (X. citri) is a quarentenary plant pathogen and the causal agent of the citrus canker. X. citri forms biofilms and remains fixed on the surface of plant tissues, especially on leaves and fruits. Considering this, all the citrus fruits have to be sanitized before they can be commercialized. NaOCl is the main sanitizer used to decontaminate fruits in the world. Due to its toxicity, treatment with NaOCl is no longer accepted by some Europe Union countries. Therefore, the aim of this work was to evaluate potassium bicarbonate (KHCO3), calcium hydroxide (Ca(OH)2), calcium hypochlorite (Ca(OCl)2) and peracetic acid (CH3CO3H) as alternatives to NaOCl for the sanitization of citrus fruit. By monitoring cell respiration and bacterial growth, we determined that peracetic acid and calcium hypochlorite exhibit bactericidal action against X. citri. Time-response growth curves and membrane integrity analyses showed that peracetic acid and calcium hypochlorite target the bacterial cytoplasmatic membrane, which is probably responsible for cell death in the first minutes of contact. The simulation of the sanitization process of citrus fruit in packinghouses showed that only peracetic acid exhibited a performance comparable to NaOCl. Among the tested compounds, peracetic acid constitutes an efficient and safer alternative to NaOCl.
2021
Behlau, Franklin; Paloschi, Alexandre; Marin, Tamiris G. S.; Santos, Talita A.; Ferreira, Henrique; do Nascimento, Lenice M.
In: Crop Protection, vol. 146, pp. 105679, 2021, ISSN: 0261-2194.
Abstract | Links | BibTeX | Tags: Lemon, Lime, Orange, Packing house, Sanitization, Sodium hypochlorite
@article{Behlau2021,
title = {Chlorine dioxide, peroxyacetic acid, and calcium oxychloride for post-harvest decontamination of citrus fruit against Xanthomonas citri subsp. citri, causal agent of citrus canker},
author = {Franklin Behlau and Alexandre Paloschi and Tamiris G. S. Marin and Talita A. Santos and Henrique Ferreira and Lenice M. do Nascimento},
doi = {10.1016/J.CROPRO.2021.105679},
issn = {0261-2194},
year = {2021},
date = {2021-01-01},
journal = {Crop Protection},
volume = {146},
pages = {105679},
publisher = {Elsevier},
abstract = {After a new regulation on the control of citrus canker (Xanthomonas citri subsp. citri) came into force in Brazil in 2017, the post-harvest sanitization of citrus fruit became mandatory to prevent dissemination of the causal pathogen and enable the commercial trade of citrus to other states and countries. Although several sanitizers are available worldwide for decontamination of fresh produce, only sodium hypochlorite is legally required by the country for decontamination of citrus fruit traded with other states and countries against X. citri in the packing house. Thus, the objectives of this study were to assess the efficiency of chlorine dioxide, peracetic acid, and calcium oxychloride as alternative sanitizers and exposure times of 1 and 2 min for the post-harvest decontamination of citrus fruit against X. citri. Sodium hypochlorite, the legally required standard, was used as control. The sanitizers were evaluated regarding the capacity to eliminate live X. citri in solution immediately or 1 h after exposure to the products and the efficiency in disinfesting artificially and naturally contaminated lime fruit. An additional assessment was carried out to determine the infective potential of X. citri suspensions at different concentrations in order to evaluate the risk of disease dissemination by the remaining bacterial population on the fruit following treatment. All the assessed sanitizers were able to completely eliminate X. citri in suspension immediately after treatment. In artificially and naturally contaminated fruit, the sanitizers promoted a significant reduction of 2.4–2.8 and 1.1 to 1.5 log10 cfu/mL, respectively, in the population of live bacteria when compared to the untreated control. In these experiments, the amount of X. citri that remained on the fruit ranged from 0.5 to 1.0 and 0.1 to 0.3 log10 cfu/mL, respectively, regardless of the exposure time. The labeled concentrations and treatment periods assessed effectively decontaminated fruit with X. citri and demonstrated little or no risk of pathogen spread from treated fruit.},
keywords = {Lemon, Lime, Orange, Packing house, Sanitization, Sodium hypochlorite},
pubstate = {published},
tppubtype = {article}
}
After a new regulation on the control of citrus canker (Xanthomonas citri subsp. citri) came into force in Brazil in 2017, the post-harvest sanitization of citrus fruit became mandatory to prevent dissemination of the causal pathogen and enable the commercial trade of citrus to other states and countries. Although several sanitizers are available worldwide for decontamination of fresh produce, only sodium hypochlorite is legally required by the country for decontamination of citrus fruit traded with other states and countries against X. citri in the packing house. Thus, the objectives of this study were to assess the efficiency of chlorine dioxide, peracetic acid, and calcium oxychloride as alternative sanitizers and exposure times of 1 and 2 min for the post-harvest decontamination of citrus fruit against X. citri. Sodium hypochlorite, the legally required standard, was used as control. The sanitizers were evaluated regarding the capacity to eliminate live X. citri in solution immediately or 1 h after exposure to the products and the efficiency in disinfesting artificially and naturally contaminated lime fruit. An additional assessment was carried out to determine the infective potential of X. citri suspensions at different concentrations in order to evaluate the risk of disease dissemination by the remaining bacterial population on the fruit following treatment. All the assessed sanitizers were able to completely eliminate X. citri in suspension immediately after treatment. In artificially and naturally contaminated fruit, the sanitizers promoted a significant reduction of 2.4–2.8 and 1.1 to 1.5 log10 cfu/mL, respectively, in the population of live bacteria when compared to the untreated control. In these experiments, the amount of X. citri that remained on the fruit ranged from 0.5 to 1.0 and 0.1 to 0.3 log10 cfu/mL, respectively, regardless of the exposure time. The labeled concentrations and treatment periods assessed effectively decontaminated fruit with X. citri and demonstrated little or no risk of pathogen spread from treated fruit.
2017
Martins, Cristina P. S.; Neves, Diana M.; Cidade, Luciana C.; Mendes, Amanda F. S.; Silva, Delmira C.; Almeida, Alex Alan F.; Coelho-Filho, Mauricio A.; Gesteira, Abelmon S.; Soares-Filho, Walter S.; Costa, Marcio G. C.
Expression of the citrus CsTIP2;1 gene improves tobacco plant growth, antioxidant capacity and physiological adaptation under stress conditions Journal Article
In: Planta 2017 245:5, vol. 245, iss. 5, pp. 951-963, 2017, ISSN: 1432-2048.
Abstract | Links | BibTeX | Tags: agriculture, Ecology, Forestry, Orange, photosynthesis, Plant Sciences, Reactive oxygen species
@article{Martins2017b,
title = {Expression of the citrus CsTIP2;1 gene improves tobacco plant growth, antioxidant capacity and physiological adaptation under stress conditions},
author = {Cristina P. S. Martins and Diana M. Neves and Luciana C. Cidade and Amanda F. S. Mendes and Delmira C. Silva and Alex Alan F. Almeida and Mauricio A. Coelho-Filho and Abelmon S. Gesteira and Walter S. Soares-Filho and Marcio G. C. Costa},
url = {https://link.springer.com/article/10.1007/s00425-017-2653-4},
doi = {10.1007/S00425-017-2653-4},
issn = {1432-2048},
year = {2017},
date = {2017-01-01},
journal = {Planta 2017 245:5},
volume = {245},
issue = {5},
pages = {951-963},
publisher = {Springer},
abstract = {Overexpression of the citrus CsTIP2;1 improves plant growth and tolerance to salt and drought stresses by enhancing cell expansion, H 2 O 2 detoxification and stomatal conductance. Tonoplast intrinsic proteins (TIPs) are a subfamily of aquaporins, belonging to the major intrinsic protein family. In a previous study, we have shown that a citrus TIP isoform, CsTIP2;1, is highly expressed in leaves and also transcriptionally regulated in leaves and roots by salt and drought stresses and infection by ‘Candidatus Liberibacter asiaticus’, the causal agent of the Huanglongbing disease, suggesting its involvement in the regulation of the flow of water and nutrients required during both normal growth and stress conditions. Here, we show that the overexpression of CsTIP2;1 in transgenic tobacco increases plant growth under optimal and water- and salt-stress conditions and also significantly improves the leaf water and oxidative status, photosynthetic capacity, transpiration rate and water use efficiency of plants subjected to a progressive soil drying. These results correlated with the enhanced mesophyll cell expansion, midrib aquiferous parenchyma abundance, H2O2 detoxification and stomatal conductance observed in the transgenic plants. Taken together, our results indicate that CsTIP2;1 plays an active role in regulating the water and oxidative status required for plant growth and adaptation to stressful environmental conditions and may be potentially useful for engineering stress tolerance in citrus and other crop plants.},
keywords = {agriculture, Ecology, Forestry, Orange, photosynthesis, Plant Sciences, Reactive oxygen species},
pubstate = {published},
tppubtype = {article}
}
Overexpression of the citrus CsTIP2;1 improves plant growth and tolerance to salt and drought stresses by enhancing cell expansion, H 2 O 2 detoxification and stomatal conductance. Tonoplast intrinsic proteins (TIPs) are a subfamily of aquaporins, belonging to the major intrinsic protein family. In a previous study, we have shown that a citrus TIP isoform, CsTIP2;1, is highly expressed in leaves and also transcriptionally regulated in leaves and roots by salt and drought stresses and infection by ‘Candidatus Liberibacter asiaticus’, the causal agent of the Huanglongbing disease, suggesting its involvement in the regulation of the flow of water and nutrients required during both normal growth and stress conditions. Here, we show that the overexpression of CsTIP2;1 in transgenic tobacco increases plant growth under optimal and water- and salt-stress conditions and also significantly improves the leaf water and oxidative status, photosynthetic capacity, transpiration rate and water use efficiency of plants subjected to a progressive soil drying. These results correlated with the enhanced mesophyll cell expansion, midrib aquiferous parenchyma abundance, H2O2 detoxification and stomatal conductance observed in the transgenic plants. Taken together, our results indicate that CsTIP2;1 plays an active role in regulating the water and oxidative status required for plant growth and adaptation to stressful environmental conditions and may be potentially useful for engineering stress tolerance in citrus and other crop plants.
Martins, Cristina P. S.; Neves, Diana M.; Cidade, Luciana C.; Mendes, Amanda F. S.; Silva, Delmira C.; Almeida, Alex Alan F.; Coelho-Filho, Mauricio A.; Gesteira, Abelmon S.; Soares-Filho, Walter S.; Costa, Marcio G. C.
Expression of the citrus CsTIP2;1 gene improves tobacco plant growth, antioxidant capacity and physiological adaptation under stress conditions Journal Article
In: Planta 2017 245:5, vol. 245, iss. 5, pp. 951-963, 2017, ISSN: 1432-2048.
Abstract | Links | BibTeX | Tags: agriculture, Ecology, Forestry, Orange, photosynthesis, Plant Sciences, Reactive oxygen species
@article{Martins2017,
title = {Expression of the citrus CsTIP2;1 gene improves tobacco plant growth, antioxidant capacity and physiological adaptation under stress conditions},
author = {Cristina P. S. Martins and Diana M. Neves and Luciana C. Cidade and Amanda F. S. Mendes and Delmira C. Silva and Alex Alan F. Almeida and Mauricio A. Coelho-Filho and Abelmon S. Gesteira and Walter S. Soares-Filho and Marcio G. C. Costa},
url = {https://link.springer.com/article/10.1007/s00425-017-2653-4},
doi = {10.1007/S00425-017-2653-4},
issn = {1432-2048},
year = {2017},
date = {2017-01-01},
journal = {Planta 2017 245:5},
volume = {245},
issue = {5},
pages = {951-963},
publisher = {Springer},
abstract = {Overexpression of the citrus CsTIP2;1 improves plant growth and tolerance to salt and drought stresses by enhancing cell expansion, H 2 O 2 detoxification and stomatal conductance. Tonoplast intrinsic proteins (TIPs) are a subfamily of aquaporins, belonging to the major intrinsic protein family. In a previous study, we have shown that a citrus TIP isoform, CsTIP2;1, is highly expressed in leaves and also transcriptionally regulated in leaves and roots by salt and drought stresses and infection by ‘Candidatus Liberibacter asiaticus’, the causal agent of the Huanglongbing disease, suggesting its involvement in the regulation of the flow of water and nutrients required during both normal growth and stress conditions. Here, we show that the overexpression of CsTIP2;1 in transgenic tobacco increases plant growth under optimal and water- and salt-stress conditions and also significantly improves the leaf water and oxidative status, photosynthetic capacity, transpiration rate and water use efficiency of plants subjected to a progressive soil drying. These results correlated with the enhanced mesophyll cell expansion, midrib aquiferous parenchyma abundance, H2O2 detoxification and stomatal conductance observed in the transgenic plants. Taken together, our results indicate that CsTIP2;1 plays an active role in regulating the water and oxidative status required for plant growth and adaptation to stressful environmental conditions and may be potentially useful for engineering stress tolerance in citrus and other crop plants.},
keywords = {agriculture, Ecology, Forestry, Orange, photosynthesis, Plant Sciences, Reactive oxygen species},
pubstate = {published},
tppubtype = {article}
}
Overexpression of the citrus CsTIP2;1 improves plant growth and tolerance to salt and drought stresses by enhancing cell expansion, H 2 O 2 detoxification and stomatal conductance. Tonoplast intrinsic proteins (TIPs) are a subfamily of aquaporins, belonging to the major intrinsic protein family. In a previous study, we have shown that a citrus TIP isoform, CsTIP2;1, is highly expressed in leaves and also transcriptionally regulated in leaves and roots by salt and drought stresses and infection by ‘Candidatus Liberibacter asiaticus’, the causal agent of the Huanglongbing disease, suggesting its involvement in the regulation of the flow of water and nutrients required during both normal growth and stress conditions. Here, we show that the overexpression of CsTIP2;1 in transgenic tobacco increases plant growth under optimal and water- and salt-stress conditions and also significantly improves the leaf water and oxidative status, photosynthetic capacity, transpiration rate and water use efficiency of plants subjected to a progressive soil drying. These results correlated with the enhanced mesophyll cell expansion, midrib aquiferous parenchyma abundance, H2O2 detoxification and stomatal conductance observed in the transgenic plants. Taken together, our results indicate that CsTIP2;1 plays an active role in regulating the water and oxidative status required for plant growth and adaptation to stressful environmental conditions and may be potentially useful for engineering stress tolerance in citrus and other crop plants.