Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers

Abo-Elyousr, Kamal A. M.; Hashem, Mohamed; Ali, Ehsan

doi:10.1016/j.cropro.2008.11.004

Cited by 98 publications

(52 citation statements)

References 45 publications

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“…There were many researchers established that higher level of phenolic content was positively proportional to the degree of plant resistance against various fungal diseases (Ramamoorthy et al, 2002;Abo-Elyousr et al, 2009). It is well known that synthesis of phenols occurs as an early response of plants to attempt infection by pathogens, as antimicrobial compounds, signal molecules, and cell wall strengthening components (Kruger et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Baka¹

2015

Acta Phytopathologica et Entomologica Hungarica

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Seed samples of four Egyptian broad bean cultivars were tested for seed-borne fungi. The deep freezing method was used to isolate twelve seed-borne fungi viz., Alternaria alternata, Aspergillus flavus, A. niger, Botrytis fabae, Cladosporium cladosporioides, Fusarium oxysporum, F. solani,, Penicillium italicum, Rhizoc tonia solani, Rhizopus stolonifer, Stemphylium globuliferum and Trichothecium roseum from the broad bean cultivars viz., Giza 3, Giza 429, Giza 843 and Misr 1. Aspergillus flavus, Botrytis fabae, Fusarium oxysporum and Penicillium italicum were the most predominant fungal species. Aqueous extracts from five wild medicinal plants (Asclepias sinaica, Farsetia aegyptia, Hypericum sinaicum, Phagnalon sinaicum, and Salvia aegypti aca) which were collected from the Sinai Peninsula, Egypt were tested against the predominant fungal pathogens. All the aqueous plant extracts significantly inhibited the mycelial growth of these fungi, but the extract of Asclepias sinaica exhibited the strongest antifungal activity. The maximum seed germination rate was observed in infested Giza 843 and minimum in Misr 1. Treating seeds with plant extract of Asclepias sinaica (10%) enhanced the percentage of seed germination of all cultivars in both laboratory and pot experiments. Maximum root and shoot lengths of seedlings were recorded in Giza 843 during fungal infestation or treatment by plant extract. In greenhouse experiment, the aqueous A. sinaica extract reduced disease severity and total pigments but increased total phenolics and fruit yield.

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Section: Discussionmentioning

confidence: 99%

Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Baka¹

2015

Acta Phytopathologica et Entomologica Hungarica

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“…The difference in the fresh weight and dry weight of the root attributed to the type of biofungicide and type of application was not significant. Guleria et al, 2005;Ali et al, 2007;Abo-Elyousr et al, 2009 showed a positive correlation between the accumulation of phenolic compounds with salicylic acid combination with Trichoderma. Combining certain microorganisms with broad-spectrum activity showed promising results for increased consistency of suppressing damping-off caused by R. s o l a n i a n d P. u l t i m u m R o b e r t s e t a l .…”

Section: Field Trialsmentioning

confidence: 99%

“…In addition to their direct action against the phytopathogens, some Trichoderma spp. are able to colonize root surfaces, interact with the plant, and exchange compounds that can cause substantial changes in plant metabolism Yedidia et al, 2000;Harman et al, 2004 . It is well documented that some strains promote plant growth, increase nutrient availability, improve crop production and enhance disease resistance Harman et al, 2004 . Significant increase in phenolic content was positively proportional to the degree of plant resistance against the pathogens Abo-Elyousr et al, 2009;Singh et al, cultivars has been successfully adopted for many crops to increase the disease control efficacy when individual cultivars may not be able to control disease effectively Mundt, 2002 . To improve biocontrol efficacies achieved through the use of a single BCA, there has been increasing interest recently among researchers in using mixtures of BCAs Xu et al, 2011 .…”

Section: Field Trialsmentioning

confidence: 99%

“…The biological control activities of Bacillus subtilis against plant pathogenic fungi have been frequently reported in laboratory, greenhouse and field conditions Zongzheng et al, 2009 . The majority of studies have focused on the application of single biocontrol agents and little attention has been paid to the study of their effect in different combinations Abo-Elyousr et al, 2009 . However, the combination of biocontrol agents that are compatible with each other could offer a new and effective approach to control plant diseases Xu et al, 2011;Singh et al, 2014 .…”

Section: Mdr=∑ A0+b1+c2+d3+e4 A+b+c+d+ementioning

confidence: 99%

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The Synergistic Effect of Two Formulated Biofungicides in the Biocontrol of Root and Bottom Rot of Lettuce

Alamri

2014

Biocontrol Sci.

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The aim of this study was to evaluate the synergistic effect of two formulated biofungicides Rhizoleen-T and Rhizoleen-B in the suppression of root and bottom rot of lettuce caused by Rhizoctonia solani, as well as the consequent effect on the phytosanitarian status of the plants. The results proved that application of the biofungicides either singly or in combination increased the germination and survival of the lettuce up to 61.67% and 100%, respectively. The phytosanitarian status of the plants, which was indicated by morphological and physiological parameters, was improved as the result of the application of the biofungicides. The noteworthy valuable result was the increase in fresh weight by 52.5% of the control when the two biofungicides were applied as a mixture. Interestingly, the mixture of the two biofungicides brought about a significant increase in most parameters compared to either of them in single preparation. Proline and phenols significantly increased as a result of the application of the biofungicides compared to the control. This means that the treated plants were more resistant against the pathogens. The study concludes that application of the biofungicides protects the lettuce plants against root and bottom rot, and in addition they increase the strength of the defense system of the plants. It is recommended that the application of a biofungicide mixture is a good and effective strategy in the biocontrol of plant diseases.

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“…BTH activates the same set of defense genes and induce similar wide spectrum resistance with lower phytotoxic effect than SA (Gorlach et al, 1996;Lawton et al, 1996 ). BTH treatment protects against a broad spectrum of pathogens in several fruit, vegetable crops and ornamental plants (Abo-Elyousr et al, 2009;Brisset et al, 2000;Godard et al, 1999;Hukkanen et al, 2007;Iriti et al, 2005;Małolepsza, 2006;Narusaka et al, 1999). Members of the NPR gene family are also key positive regulators of systemic acquired resistance (Cao et al, 1994;Tada et al, 2008).…”

Section: Exogenous Application Of Natural Compounds Stimulating Plantmentioning

confidence: 99%

The Millardetian Conjunction in the Modern World

Rivière¹,

Ponchet²,

Galiana³

2011

Pesticides in the Modern World - Pesticides Use and Management

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Integrated control of cotton root rot disease by mixing fungal biocontrol agents and resistance inducers

Cited by 98 publications

References 45 publications

Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

Efficacy of wild medicinal plant extracts against predominant seed-borne fungi of broad bean cultivars

The Synergistic Effect of Two Formulated Biofungicides in the Biocontrol of Root and Bottom Rot of Lettuce

The Millardetian Conjunction in the Modern World

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