Aplicação de fosfito de potássio, cálcio ou magnésio para a redução da podridão-do-pé do mamoeiro em casa de vegetação

Dianese, A. de C.; Blum, Luiz Eduardo Bassay; Dutra, Jaqueline Barbosa; Lopes, Leonardo Ferreira

doi:10.1590/s0103-84782009000800006

Cited by 8 publications

(5 citation statements)

References 10 publications

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“…Phosphites are inorganic salts of phosphorous acid (H 3 PO 3 ) formulated with potassium, manganese, copper or zinc. In the United States, phosphites are registered for the control of oomycetes (King et al 2010) while in Brazil they are considered foliar fertilizers and reduce disease severity in various crops such as onion (Wordell Filho and Stadnik 2006), papaya (Dianese et al 2008(Dianese et al , 2009, grapevine (Pereira et al 2010, mango (Araujo et al 2015), eucalyptus (Silva et al 2013) and coffee (Nojosa et al 2009;Dalio et al 2012;Costa et al 2014). In the United States, phosphites are registered for the control of oomycetes (King et al 2010) while in Brazil they are considered foliar fertilizers and reduce disease severity in various crops such as onion (Wordell Filho and Stadnik 2006), papaya (Dianese et al 2008(Dianese et al , 2009, grapevine (Pereira et al 2010, mango (Araujo et al 2015), eucalyptus (Silva et al 2013) and coffee (Nojosa et al 2009;Dalio et al 2012;Costa et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…These inorganic compounds can influence pH and redox homeostasis, hormone signalling and enzymes involved in stress response (Du Jardin 2015). In the United States, phosphites are registered for the control of oomycetes (King et al 2010) while in Brazil they are considered foliar fertilizers and reduce disease severity in various crops such as onion (Wordell Filho and Stadnik 2006), papaya (Dianese et al 2008(Dianese et al , 2009), grapevine (Pereira et al 2010, mango (Araujo et al 2015), eucalyptus (Silva et al 2013) and coffee (Nojosa et al 2009;Dalio et al 2012;Costa et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Manganese Phosphite in Coffee Defence against Hemileia vastatrix, the Coffee Rust Fungus: Biochemical and Molecular Analyses

Monteiro

Resende

Valente

et al. 2016

Journal of Phytopathology

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Phosphites (Phi) are inorganic salts of phosphorous acid that have been used as resistance elicitors to activate mechanisms underlying plant defence. This study assessed the effectiveness of manganese phosphite (MnPhi) for the management of rust (Hemileia vastatrix) on coffee seedlings. The effect of this compound on the induction of resistance was also measured by the expression of defence‐related genes such as POX (peroxidase), CAT (catalase), GLU (β‐1.3‐glucanase) and PAL (phenylalanine ammonia‐lyase) and by the activity of defence enzymes such as ascorbate peroxidase (APX), superoxide dismutase (SOD) and polyphenol oxidase (PPO). Foliar sprayings of MnPhi on coffee seedlings provided 63% control of rust severity. This compound induced defence responses in seedlings with increased transcription of genes POX, CAT, GLU and PAL in non‐inoculated plants and increased activity of APX, SOD and PPO enzymes in plants inoculated with H. vastatrix and in non‐inoculated plants. It is suggested that MnPhi can induce resistance in coffee seedlings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Manganese Phosphite in Coffee Defence against Hemileia vastatrix, the Coffee Rust Fungus: Biochemical and Molecular Analyses

Monteiro

Resende

Valente

et al. 2016

Journal of Phytopathology

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“…New alternatives for CBB management need to be explored. Phosphites have been reported to reduce the intensities of several diseases in many crops of economic importance (Araujo, Bispo, Rios, Fernandes, & Rodrigues, 2015; Araujo, Valdebenito‐Sanhueza, & Stadnik, 2010; Brackmann, Giehl, Sestari, & Steffens, 2004; Dianese, Blum, Dutra, & Lopes, 2009; Fagundes‐Nacarath, Debona, Brás, Silveira, & Rodrigues, 2018; Fagundes‐Nacarath, Debona, Oliveira, Hawerroth, & Rodrigues, 2018; Nojosa, Resende, Barguil, Moraes, & Vilas Boas, 2009; Peruch & Brunna, 2008; Smillie, Grant, & Guest, 1989). The infection process of pathogens can be directly affected by phosphites or by some host defence responses (e.g.…”

Section: Introductionmentioning

confidence: 99%

Phosphites of manganese and zinc potentiate the resistance of common bean against infection by Xanthomonas axonopodis pv. phaseoli

Costa

Debona

Silveira

et al. 2020

Journal of Phytopathology

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Common bacterial blight (CBB), caused by Xanthomonas axonopodis pv. phaseoli var. fuscans (Xapf), negatively impact common bean production globally. Considering the potential of phosphites to protect plants against different diseases, this study investigated the potential of using manganese (Mn) and zinc (Zn) phosphites in common bean for CBB control. Plants were inoculated with Xapf 48 hr after being sprayed with water (control) and solutions (7.5 ml/L) of Mn and Zn phosphites. The area under common bacterial blight progress curve (AUCBBPC) was significantly lower by 34% and 59% for Mn and Zn phosphite treatments in comparison with the control treatment. The AUCBBPC was significantly reduced by 38% for Zn phosphite‐sprayed plants compared to Mn phosphite treatment. Phosphite‐sprayed plants displayed higher values for area under the curves of net CO2 assimilation rate, stomatal conductance to water vapour, transpiration rate and internal‐to‐ambient CO2 concentration ratio than non‐sprayed plants. This indicates the effect of Mn and Zn phosphites in attenuating the photochemical dysfunctions caused by Xapf infection. Moreover, plants sprayed with Mn phosphite displayed higher values for area under the curves of efficiency in capturing the excitation energy of open reaction centres of PSII and electron transport rate than those non‐sprayed indicating their capacity to preserve the capture and the use of the collected energy more efficiently. Lower AUCBBPC for Zn phosphite‐sprayed plants resulted in higher concentrations of total chlorophylls. The Zn phosphite‐sprayed plants showed higher values for area under the curves of β‐1,3‐glucanase, phenylalanine ammonia‐lyase, polyphenoloxidase, ascorbate peroxidase and superoxide dismutase activities. The Zn phosphite spray primed the plants to enhance their defence response and antioxidant capacity to reduce Xapf‐triggered oxidative stress with the preservation of the photosynthetic apparatus more efficiently.

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“…Due to its high solubility and mobility, phosphites are effective in controlling diseases caused by Oomycetes. The phosphite salts have been used successfully in controlling diseases that affect cultures such as: grapevine, tomato, citrus, soybean, papaya, potatoes, melon and apple (MCDONALD et al, 2001;BRACKMANN et al, 2004;RIBEIRO JR. et al, 2006;DIANESE et al, 2007;DIANESE et al, 2009;NEVES;BLUM, 2014).…”

Section: Introductionmentioning

confidence: 99%

Reduction of papaya rot (Phytophthora palmivora) with phosphite and Acibenzolar-S-Methyl in preharvest and postharvest

Oliveira¹,

Blum²,

Duarte³

et al. 2018

Biosci. J.

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The papaya fruit rot (Phytophthora palmivora) is responsible for significant losses. To reduce diseases, especially in areas with climate and humidity favorable to pathogens, are adopted chemical methods, which sometimes increase the cost of production and cause severe environmental impacts. Alternatively, there are products, such as, phosphites of potassium and acibenzolar-S-methyl (ASM) that might be efficient on disease control and less aggressive to environment. Phosphites of K and ASM were evaluated in this study on the control effectiveness of papaya fruit rot at different dosages in preharvest and postharvest. The severity and percentage of disease control were evaluated for each treatment. For the pre-harvest treatments (applied six days before harvest), the phosphite of K [240 g L-1 K 2 O, 340 g L-1 P 2 O 5 and 50 g L-1 (Reforce ® + Salicylic Acid)] at 3 or 6 mL L-1 significantly reduced disease severity, and, reduced fruit ripening. On postharvest application, ASM reduced disease severity.

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Aplicação de fosfito de potássio, cálcio ou magnésio para a redução da podridão-do-pé do mamoeiro em casa de vegetação

Cited by 8 publications

References 10 publications

Manganese Phosphite in Coffee Defence against Hemileia vastatrix, the Coffee Rust Fungus: Biochemical and Molecular Analyses

Manganese Phosphite in Coffee Defence against Hemileia vastatrix, the Coffee Rust Fungus: Biochemical and Molecular Analyses

Phosphites of manganese and zinc potentiate the resistance of common bean against infection by Xanthomonas axonopodis pv. phaseoli

Reduction of papaya rot (Phytophthora palmivora) with phosphite and Acibenzolar-S-Methyl in preharvest and postharvest

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