Growth, cell wall-degrading enzymes and aflatoxin production by lemon-rotting fungi in relation to insecticide application

Mahmoud, Abeer M.; Omar, S. A.

doi:10.1016/s0944-5013(11)80056-x

Cited by 6 publications

(4 citation statements)

References 29 publications

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“…Curley and Burton (1975) attributed the inhibition in nodulation, concomitant with pesticide application, to the inability of rhizobia/bradyrhizobia to multiply in the presence of pesticides. Pesticides may inhibit nodulation through their effect on cellulolytic and pectolytic enzyme production by rhizobia, as occurs in other micro-organisms (Mahmoud and Omar 1995). Production of these enzymes by rhizobia is essential for root hair penetration (Hansen 1994).…”

Section: Rhizobium-legume and Nodulation And Nitrogen Fixationmentioning

confidence: 99%

Impact of Harsh Environmental Conditions on Nodule Formation and Dinitrogen Fixation of Legumes

Abd‐Alla¹,

Issa²,

Ohyama³

2014

Advances in Biology and Ecology of Nitrogen Fixation

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Section: Rhizobium-legume and Nodulation And Nitrogen Fixationmentioning

confidence: 99%

Impact of Harsh Environmental Conditions on Nodule Formation and Dinitrogen Fixation of Legumes

Abd‐Alla¹,

Issa²,

Ohyama³

2014

Advances in Biology and Ecology of Nitrogen Fixation

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“…This is because cellulolytic and petolytic enzymes, which are useful in this symbiosis, were inhibited by the pesticide (Mahmoud and Omar, 1995). Moreover, pesticides impacted on rhizosphere due to the inhibition of the growth of plants and promoting organisms by pesticide application (Koch et al, 1997).…”

Section: Factors Influencing Nitrogen Fixationmentioning

confidence: 99%

Enhancement of Fixation Nitrogen in Food Legumes

Wiraguna¹

2016

JAS

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Increasing the capability of nitrogen fixation in legumes is crucial because the population has been risen dramatically and predicted to be doubled by 2050. In order to feed this high population, food productivity needs to be increased. A solution to overcome this problem is through improvement of crop productivity by applying fertilizer. However, the application of fertilizer such as nitrogen is over the recommended amount and the cost is high at approximately $US 40 billion per year. Therefore, legumes are important in order to minimize the cost and enhance soil fertility through nitrogen fixation (nodulation). To achieve high nitrogen fixation, agriculture managements such as minimum tillage, breeding programs and induced mutants have been developed. In breeding program, it was found that BT-477 had high nitrogen fixation and drought tolerant based on selection among 7 common bean genotypes. Induced mutants were applied by soaking swollen seeds in EMS and resulted to higher number of nodules (10x).

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“…There are several reports indicating the varying effect of insecticides on both mycelial growth and extracellular enzyme production according to different factors including the kinds and doses of insecticides and the fungal species tested (Abdel-Kader et al 1984;Abdel-Kader and Abdel-Mallek 1985;Omar 1991;Khan et al 1992;Hassan and Omar 1993;Khalil and Omar 1993;Omar et al 1993;Mahmoud and Omar 1995;Saleem 1995;Omar and Abd-Alla 2000;Robert and Bryony 2001).…”

Section: Effect Of Insecticides On Biomas and Hydrolytic Enzymes Of Fmentioning

confidence: 99%

“…However, the cellulase activity of A. terreus and M. thermophila was inhibited after some experimental periods. Mahmoud and Omar (1995) studied the effect of Sumi oil insecticide on growth, cellulase and pectinase activities of seven lemon-rotting fungi. They reported that the lower doses of insecticide up to 100 ppm increased mycelial growth of the tested molds, whereas the higher rates (500 and 1000 ppm) strongly suppressed biomass formation.…”

Section: Amylasementioning

confidence: 99%

Effect of two insecticides, Sparkill (25% Cypermethrin) and Tafaban (48% Chorpyrifos) on mycobiota of maize plants in Upper Egypt

Abdel‐Hafez

El‐Said

Moharram

et al. 2010

Archives Of Phytopathology And Plant Protection

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Two insecticides, Sparkill (25% Cypermethrin) and Tafaban (48% Chlorpyifos) were used in the treatment of maize plants. At three different doses, both Sparkill and Tafaban were toxic to total and individual fungal population of rhizosphere and nonrhizosphere soil as well as to fungi inhabiting roots and foliage of maize. The most common fungal species comprised Alternaria alternata, Aspergillus flavus, A. fumigatus, A. niger, A. terreus and Emericella nidulans. The ability of different fungal isolates to produce extracellular enzymes in solid media was tested. The effect of both Sparkill and Tafaban (at 50-400 ppm) on mycelial growth and production of amylase, cellulase, lipase and protease by certain fungi was variable. In most cases the low doses were promotive whereas the high doses were depressive.

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Growth, cell wall-degrading enzymes and aflatoxin production by lemon-rotting fungi in relation to insecticide application

Cited by 6 publications

References 29 publications

Impact of Harsh Environmental Conditions on Nodule Formation and Dinitrogen Fixation of Legumes

Impact of Harsh Environmental Conditions on Nodule Formation and Dinitrogen Fixation of Legumes

Enhancement of Fixation Nitrogen in Food Legumes

Effect of two insecticides, Sparkill (25% Cypermethrin) and Tafaban (48% Chorpyrifos) on mycobiota of maize plants in Upper Egypt

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