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2021
Ferreira, Guilherme A.; Hippler, Franz W. R.; dos S. Prado, Luis A.; Rima, Janaína A. H.; Boaretto, Rodrigo M.; Quaggio, José A.; Façanha, Arnoldo R.; Mattos-Jr, Dirceu
Boron modulates the plasma membrane H+-ATPase activity affecting nutrient uptake of Citrus trees Journal Article
Em: Annals of Applied Biology, vol. 178, iss. 2, pp. 293-303, 2021, ISSN: 1744-7348.
Resumo | Links | BibTeX | Tags: enzyme activity, membrane hyperpolarisation, nutrient absorption, proton extrusion, root medium, Rootstocks
@article{Ferreira2021,
title = {Boron modulates the plasma membrane H+-ATPase activity affecting nutrient uptake of Citrus trees},
author = {Guilherme A. Ferreira and Franz W. R. Hippler and Luis A. dos S. Prado and Janaína A. H. Rima and Rodrigo M. Boaretto and José A. Quaggio and Arnoldo R. Façanha and Dirceu Mattos-Jr},
url = {https://onlinelibrary.wiley.com/doi/full/10.1111/aab.12630 https://onlinelibrary.wiley.com/doi/abs/10.1111/aab.12630 https://onlinelibrary.wiley.com/doi/10.1111/aab.12630},
doi = {10.1111/AAB.12630},
issn = {1744-7348},
year = {2021},
date = {2021-01-01},
journal = {Annals of Applied Biology},
volume = {178},
issue = {2},
pages = {293-303},
publisher = {John Wiley & Sons, Ltd},
abstract = {Boron (B) affects plasma membrane (PM) integrity and consequently modulates the P-type PM H+-ATPase activity creating a driving force for nutrient influx at the root level. Because citrus rootstocks respond differently to B supply, we hypothesised that PM H+-ATPase activity of varieties contrasting in horticultural traits would affect nutrient uptake by trees. Sweet orange (Citrus sinensis) trees grafted onto Rangpur lime (RL; Citrus limonia) or Swingle citrumelo (SW; Citrus paradisi × Poncirus trifoliata) were grown in nutrition solution with four B concentrations (0 [control concentration], 46, 230 and 460 μM B, as H3BO3) up to 7 days of treatment imposition after plant adaptation into the hydroponic condition. SW exhibited higher B absorption, leaf B and enzyme activity than RL. The highest enzyme activity was achieved with 230 μM of B 1 day after treatment imposition (ATI), whereas B excess impaired the PM H+-ATPase in all periods evaluated. Absorption of mineral nutrients correlated with PM H+-ATPase activity, with greater nutrient uptake per root unit in SW compared to RL. Leaf and root nutrient concentrations were equivalent to amounts absorbed and enzyme activity, with greater increments exhibited by trees grafted onto SW compared to RL. Effects of B supply on PM H+-ATPase activity explain distinct nutrient uptake patterns by trees, what supports fine-tuning fertilisation guidelines of citrus taking into account rootstock varieties.},
keywords = {enzyme activity, membrane hyperpolarisation, nutrient absorption, proton extrusion, root medium, Rootstocks},
pubstate = {published},
tppubtype = {article}
}
Boron (B) affects plasma membrane (PM) integrity and consequently modulates the P-type PM H+-ATPase activity creating a driving force for nutrient influx at the root level. Because citrus rootstocks respond differently to B supply, we hypothesised that PM H+-ATPase activity of varieties contrasting in horticultural traits would affect nutrient uptake by trees. Sweet orange (Citrus sinensis) trees grafted onto Rangpur lime (RL; Citrus limonia) or Swingle citrumelo (SW; Citrus paradisi × Poncirus trifoliata) were grown in nutrition solution with four B concentrations (0 [control concentration], 46, 230 and 460 μM B, as H3BO3) up to 7 days of treatment imposition after plant adaptation into the hydroponic condition. SW exhibited higher B absorption, leaf B and enzyme activity than RL. The highest enzyme activity was achieved with 230 μM of B 1 day after treatment imposition (ATI), whereas B excess impaired the PM H+-ATPase in all periods evaluated. Absorption of mineral nutrients correlated with PM H+-ATPase activity, with greater nutrient uptake per root unit in SW compared to RL. Leaf and root nutrient concentrations were equivalent to amounts absorbed and enzyme activity, with greater increments exhibited by trees grafted onto SW compared to RL. Effects of B supply on PM H+-ATPase activity explain distinct nutrient uptake patterns by trees, what supports fine-tuning fertilisation guidelines of citrus taking into account rootstock varieties.
2020
Cruz, Ricardo Alcántara-De; Amaral, Gabriel Silva; Oliveira, Guilherme Moraes; Rufino, Luiz Renato; Azevedo, Fernando Alves; Carvalho, Leonardo Bianco; Silva, Maria Fátima Das Graças Fernandes
Glyphosate Resistance in Amaranthus viridis in Brazilian Citrus Orchards Journal Article
Em: Agriculture 2020, Vol. 10, Page 304, vol. 10, iss. 7, pp. 304, 2020, ISSN: 2077-0472.
Resumo | Links | BibTeX | Tags: dose, enzyme activity, herbicide resistance, response, shikimic acid, slender amaranth
@article{nokey,
title = {Glyphosate Resistance in Amaranthus viridis in Brazilian Citrus Orchards},
author = {Ricardo Alcántara-De Cruz and Gabriel Silva Amaral and Guilherme Moraes Oliveira and Luiz Renato Rufino and Fernando Alves Azevedo and Leonardo Bianco Carvalho and Maria Fátima Das Graças Fernandes Silva},
url = {https://www.mdpi.com/2077-0472/10/7/304/htm https://www.mdpi.com/2077-0472/10/7/304},
doi = {10.3390/AGRICULTURE10070304},
issn = {2077-0472},
year = {2020},
date = {2020-01-01},
journal = {Agriculture 2020, Vol. 10, Page 304},
volume = {10},
issue = {7},
pages = {304},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {Glyphosate is the main tool for weed management in Brazilian citrus orchards, where weeds, such as Conyza bonariensis and Digitaria insularis, have been found with resistance to this herbicide. Field prospections have allowed the identification of a possible new case of glyphosate resistance. In this work, the susceptibility levels to glyphosate on three Amaranthus viridis L. populations, with suspected resistance (R1, R2, and R-IAC), collected in citrus orchards from the São Paulo State, Brazil, as well as their accumulation rates of shikimic acid, were determined. The fresh weight of the susceptible population (S) was reduced by 50% (GR50) with ~30 g ea ha−1 glyphosate, while the GR50 values of the R populations were between 5.4 and 11.3 times higher than that for S population. The LD50 (herbicide dose to kill 50% of individuals of a weed population) values of the S population were ≤150 g ea ha−1 glyphosate, while the LD50 of the R populations ranged from 600 to 920 g ea ha−1. Based on the reduction of fresh weight and the survival rate, the R1 population showed the highest level of glyphosate resistance, which had GR50 and LD50 values of 248 and 918 g ea ha−1 glyphosate, respectively. The S population accumulated 240 µg shikimic acid at 1000 µM glyphosate, while the R1, R2, and R-IAC populations accumulated only 16, 43, and 33 µg shikimic acid, respectively (between 5.6 to 15 times less than the S population). Enzyme activity assays suggested that at least one target site-type mechanism was involved in resistance. This result revealed the first report of glyphosate resistance in A. viridis reported in the world.},
keywords = {dose, enzyme activity, herbicide resistance, response, shikimic acid, slender amaranth},
pubstate = {published},
tppubtype = {article}
}
Glyphosate is the main tool for weed management in Brazilian citrus orchards, where weeds, such as Conyza bonariensis and Digitaria insularis, have been found with resistance to this herbicide. Field prospections have allowed the identification of a possible new case of glyphosate resistance. In this work, the susceptibility levels to glyphosate on three Amaranthus viridis L. populations, with suspected resistance (R1, R2, and R-IAC), collected in citrus orchards from the São Paulo State, Brazil, as well as their accumulation rates of shikimic acid, were determined. The fresh weight of the susceptible population (S) was reduced by 50% (GR50) with ~30 g ea ha−1 glyphosate, while the GR50 values of the R populations were between 5.4 and 11.3 times higher than that for S population. The LD50 (herbicide dose to kill 50% of individuals of a weed population) values of the S population were ≤150 g ea ha−1 glyphosate, while the LD50 of the R populations ranged from 600 to 920 g ea ha−1. Based on the reduction of fresh weight and the survival rate, the R1 population showed the highest level of glyphosate resistance, which had GR50 and LD50 values of 248 and 918 g ea ha−1 glyphosate, respectively. The S population accumulated 240 µg shikimic acid at 1000 µM glyphosate, while the R1, R2, and R-IAC populations accumulated only 16, 43, and 33 µg shikimic acid, respectively (between 5.6 to 15 times less than the S population). Enzyme activity assays suggested that at least one target site-type mechanism was involved in resistance. This result revealed the first report of glyphosate resistance in A. viridis reported in the world.
Cruz, Ricardo Alcántara-De; Amaral, Gabriel Silva; Oliveira, Guilherme Moraes; Rufino, Luiz Renato; Azevedo, Fernando Alves; Carvalho, Leonardo Bianco; Silva, Maria Fátima Das Graças Fernandes
Glyphosate Resistance in Amaranthus viridis in Brazilian Citrus Orchards Journal Article
Em: Agriculture 2020, Vol. 10, Page 304, vol. 10, iss. 7, pp. 304, 2020, ISSN: 2077-0472.
Resumo | Links | BibTeX | Tags: dose, enzyme activity, herbicide resistance, response, shikimic acid, slender amaranth
@article{nokey,
title = {Glyphosate Resistance in Amaranthus viridis in Brazilian Citrus Orchards},
author = {Ricardo Alcántara-De Cruz and Gabriel Silva Amaral and Guilherme Moraes Oliveira and Luiz Renato Rufino and Fernando Alves Azevedo and Leonardo Bianco Carvalho and Maria Fátima Das Graças Fernandes Silva},
url = {https://www.mdpi.com/2077-0472/10/7/304/htm https://www.mdpi.com/2077-0472/10/7/304},
doi = {10.3390/AGRICULTURE10070304},
issn = {2077-0472},
year = {2020},
date = {2020-01-01},
journal = {Agriculture 2020, Vol. 10, Page 304},
volume = {10},
issue = {7},
pages = {304},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {Glyphosate is the main tool for weed management in Brazilian citrus orchards, where weeds, such as Conyza bonariensis and Digitaria insularis, have been found with resistance to this herbicide. Field prospections have allowed the identification of a possible new case of glyphosate resistance. In this work, the susceptibility levels to glyphosate on three Amaranthus viridis L. populations, with suspected resistance (R1, R2, and R-IAC), collected in citrus orchards from the São Paulo State, Brazil, as well as their accumulation rates of shikimic acid, were determined. The fresh weight of the susceptible population (S) was reduced by 50% (GR50) with ~30 g ea ha−1 glyphosate, while the GR50 values of the R populations were between 5.4 and 11.3 times higher than that for S population. The LD50 (herbicide dose to kill 50% of individuals of a weed population) values of the S population were ≤150 g ea ha−1 glyphosate, while the LD50 of the R populations ranged from 600 to 920 g ea ha−1. Based on the reduction of fresh weight and the survival rate, the R1 population showed the highest level of glyphosate resistance, which had GR50 and LD50 values of 248 and 918 g ea ha−1 glyphosate, respectively. The S population accumulated 240 µg shikimic acid at 1000 µM glyphosate, while the R1, R2, and R-IAC populations accumulated only 16, 43, and 33 µg shikimic acid, respectively (between 5.6 to 15 times less than the S population). Enzyme activity assays suggested that at least one target site-type mechanism was involved in resistance. This result revealed the first report of glyphosate resistance in A. viridis reported in the world.},
keywords = {dose, enzyme activity, herbicide resistance, response, shikimic acid, slender amaranth},
pubstate = {published},
tppubtype = {article}
}
Glyphosate is the main tool for weed management in Brazilian citrus orchards, where weeds, such as Conyza bonariensis and Digitaria insularis, have been found with resistance to this herbicide. Field prospections have allowed the identification of a possible new case of glyphosate resistance. In this work, the susceptibility levels to glyphosate on three Amaranthus viridis L. populations, with suspected resistance (R1, R2, and R-IAC), collected in citrus orchards from the São Paulo State, Brazil, as well as their accumulation rates of shikimic acid, were determined. The fresh weight of the susceptible population (S) was reduced by 50% (GR50) with ~30 g ea ha−1 glyphosate, while the GR50 values of the R populations were between 5.4 and 11.3 times higher than that for S population. The LD50 (herbicide dose to kill 50% of individuals of a weed population) values of the S population were ≤150 g ea ha−1 glyphosate, while the LD50 of the R populations ranged from 600 to 920 g ea ha−1. Based on the reduction of fresh weight and the survival rate, the R1 population showed the highest level of glyphosate resistance, which had GR50 and LD50 values of 248 and 918 g ea ha−1 glyphosate, respectively. The S population accumulated 240 µg shikimic acid at 1000 µM glyphosate, while the R1, R2, and R-IAC populations accumulated only 16, 43, and 33 µg shikimic acid, respectively (between 5.6 to 15 times less than the S population). Enzyme activity assays suggested that at least one target site-type mechanism was involved in resistance. This result revealed the first report of glyphosate resistance in A. viridis reported in the world.