Induction of systemic resistance in potato (Solanum tuberosum L.) plants to late blight by local treatment withPhytophthora infestans (Mont.) de Bary,Phytophthora cryptogea Pethyb. &amp; laff. or dipotassium phosphate

Strömberg, Anita; Brishammar, Sture

doi:10.1007/bf02358045

Cited by 29 publications

(17 citation statements)

References 13 publications

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“…Many investigations reported the use of potassium salts as a chemical agent for induction of plant resistance [27,28]. Furthermore, there has been considerable interest in the use of potassium bicarbonate and potassium phosphate, potassium sulfate and potassium silicate for controlling various fungal diseases in plants [29][30][31][32].…”

Section: Discussionmentioning

confidence: 99%

Induce Systemic Resistance against Root Rot and Wilt Diseases in Fodder Beet (Beta vulgaris L. var. rapacea Koch.) by Using Potassium Salts

Abdel-Monaim¹,

Atwa²

2015

J Plant Pathol Microbiol

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Section: Discussionmentioning

confidence: 99%

Induce Systemic Resistance against Root Rot and Wilt Diseases in Fodder Beet (Beta vulgaris L. var. rapacea Koch.) by Using Potassium Salts

Abdel-Monaim¹,

Atwa²

2015

J Plant Pathol Microbiol

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“…Potassium salts (K 2 HPO 4 or KNO 3 ) as a chemical agent for induction of plant resistance had great attention in many of these reports [43,44]. Moreover, there has been considerable interest in the use of sodium bicarbonate and potassium bicarbonate for controlling various fungal diseases in plants [45][46][47].…”

Section: Effect Of Plant Resistance Inducers On Fungal Linear Growthmentioning

confidence: 99%

In Vitro Evaluation of Some Fungicides Alternatives Against Fusarium Oxysporum the Causal of Wilt Disease of Pepper (Capsicum annum L.)

Ragab¹,

Ashour²,

Abdel-Kader³

et al. 2012

IJAF

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The inhibitory effect of the antagonistic bioagents, chemical plant resistance inducers and some essential oils against the linear growth of two isolates of F. oxysporum the wilt pathogen of pepper (Capsicum annum L.) was evaluated in vitro. The antagonistic microorganisms, Trichoderma harzianum, T. viride, T. aureiviride, Bacillus subtilis and Pseudomonas fluorescens were tested. Also, the tested chemical inducers were Sodium benzoate, Potassium bicarbonate, Potassium sorbate and Chitosan. Meanwhile, the tested essential oils were Cinnamon, Clove, Thyme, Lemon grass, Lemon, Mint, Pepper mint and Mustard. The obtained results indicate that the antagonistic bioagents, T. viride, B. subtilis, P. fluorescens showed superior inhibitory effect against the growth of pathogenic fungi compared with T. harzianum and T. aureiviride. The fungal mycelial growth reduced gradually by increasing of tested concentrations to reach complete reduction (100%) at the concentrations of 4% for Potassium bicarbonate and Sodium benzoate and at 6% for Potassium sorbate. Data also revealed that the fungicide Topsin-M had superior inhibitor effect on the fungal linear growth than that of tested salts. It cause complete growth reduction at concentration of 300ppm. Chitosan was found to affect the linear growth of the two isolates of F. oxysporum that the complete reduction in fungal growth (100%) was observed at concentration of 4.5 g/L. Results also showed that Thyme, Lemon grass, Peppermint, Clove and Mint oils had higher inhibitor effect on fungal mycelial growth than Limon, Cinnamon and Mustard oils. Fungal mycelial growth decreased significantly as the concentrations of essential oils were increased, to reach the fungal growth's minimum at the highest concentration used. Complete reduction (100%) in mycelial growth of two fungal isolates was recorded at concentration of 6% of all tested essential oils. The obtained results in the present study showed the possibility of usage antagonistic bioagents, various plant inducers and essential oils to control plant pathogenic fungi.

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“…Data in Table (4) and Fig (4) showed that the antagonistic efficacy of antagonistic bacteria against pathogenic fungal growth increased as the concentration of calcium chloride increased in growth media. In this regard, all tested pathogenic fungi showed high sensitivity against the antagonist B. subtilis where their growth reduced by 81.1, 83.3% (Fig.…”

Section: Effect Of Plant Resistance Inducers On Antagonistic Abilitymentioning

confidence: 99%

“…On the other hand, many investigations reported the use of potassium salts (K 2 HPO 4 or KNO 3 ) as a chemical agent for induction of plant resistance [4,5]. Furthermore, Humic and Fulvic acids have been early recorded to have appositive effect against plant pathogens and their cells biological activities [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Sclerotinia Foliage Blight Disease of Cucumber and Pepper Plants under Protected Cultivation System in Egypt II. Bio-Control Measures against Sclerotinia Spp. in Vitro

Abdel-Kader¹,

El-Mougy²,

Aly³

et al. 2012

ALS

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Severe outbreaks of stem or fruit rot symptoms with sclerotial formation were observed as first occurrence during a disease survey of cucumber and pepper crops during the cool season, 2011 in the Protected Cultivation Station, Ministry of Agriculture located at Tookh province, Qalubiya governorate, Egypt. This disease appears during the growing season at the seedling or mature stages of plant growth. Recently, interest has been shown in combining microbial biocontrol agents with other chemical components to increase their activity against plant pathogens. To reach the proposed aim determination of the efficacy of some plant-derived essential oils, plant resistance inducers and plant extracts in combination with biocontrol agents against the growth of Sclerotinia foliage blight pathogens S. sclerotiorum and S. minor was carried out under in vitro conditions. The obtained results in the present study has shown the potential of tested materials as effective inhibitors against pathogenic fungi when combined factors with antagonistic bioagents.

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Induction of systemic resistance in potato (Solanum tuberosum L.) plants to late blight by local treatment withPhytophthora infestans (Mont.) de Bary,Phytophthora cryptogea Pethyb. & laff. or dipotassium phosphate

Cited by 29 publications

References 13 publications

Induce Systemic Resistance against Root Rot and Wilt Diseases in Fodder Beet (Beta vulgaris L. var. rapacea Koch.) by Using Potassium Salts

Induce Systemic Resistance against Root Rot and Wilt Diseases in Fodder Beet (Beta vulgaris L. var. rapacea Koch.) by Using Potassium Salts

<i>In Vitro</i> Evaluation of Some Fungicides Alternatives Against <i>Fusarium Oxysporum</i> the Causal of Wilt Disease of Pepper (<i>Capsicum </i><i>a</i><i>nnum </i>L.)

Occurrence of Sclerotinia Foliage Blight Disease of Cucumber and Pepper Plants under Protected Cultivation System in Egypt II. Bio-Control Measures against Sclerotinia Spp. in Vitro

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