Effect of static magnetic fields (SMF) on the viability and fecundity of aphid Sitobion avenae (Homoptera: Aphididae) under laboratory conditions

He, Juan; Gao, Huanhuan; Zhao, Hongwei; Monika, Walter; Hu, Zu-Aing; Hu, Xiang-Shun

doi:10.2298/abs1202693h

Cited by 6 publications

(3 citation statements)

References 36 publications

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“…At present, the main measures to control aphids include agronomic practices [5][6][7][8] and chemical [9][10][11], physical [12][13][14], and biological control. The application of chemical insecticides has been the most-used strategy till now.…”

Section: Introductionmentioning

confidence: 99%

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

Qian,

Ahmed,

et al. 2023

IJMS

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Aphids are a serious threat to rapeseed (Brassica napus L.) production, and cause unmanageable loss. Therefore, effective prevention and management strategies are urgently required to avoid losses. Bacillus amyloliquefaciens AK-12 isolated from a dead aphid with aphicidal activity was tagged with a green fluorescent protein through a natural transformation. The transformed strains were checked for stability and growth, and the best-performing strain was tested for its colonization inside and outside the rapeseed plant. The stability of AK-12-GFP reached more than 95%, and the growth curve was consistent with that of AK-12. After 30 days of treatment, the colonization of 1 × 106 CFU/g was recorded in rapeseed leaves. Interestingly, AK-12 reduced the aphid transmission rate compared with the control and improved the growth of the rapeseed seedlings. Meanwhile, the AK-12 strain also exhibited phosphorus, potassium-solubilizing, and nitrogen-fixing activity, and produced 2.61 µg/mL of IAA at 24 h. Regulation in the activity of four enzymes was detected after the AK-12 treatment. Phenylalanine ammonia lyase (PAL) was recorded at a maximum of 86.84 U/g after 36 h, and catalase (CAT) decreased after 48 h; however, peroxidase (POD) and polyphenol oxidase (PPO) reached the maximum within 12 h of AK-12 application. Additionally, important resistance genes related to these enzymes were upregulated, indicating the activation of a defense response in the rapeseed against aphids. In conclusion, defense enzymes and defense-related gene activation could improve the pest resistance in rapeseed, which has good application prospects for the future to be developed into biopesticide.

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Section: Introductionmentioning

confidence: 99%

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

Qian,

Ahmed,

et al. 2023

IJMS

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“…There is a considerably great interest on the effects associated with or due to application of magnetic field on living organisms [1][2][3] . A lot of different animal species are directly affected by, or have benefit of magnetic field in orientation, finding homes, building their nests and more [4,5] .…”

Section: Introductionmentioning

confidence: 99%

Influence of low static magnetic field (SMF) on immature development and survival of the mosquito, Culex pipiens (Diptera: Culicidae)

Ibrahim

Baz

2017

The Arab Journal of Scientific Research

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In this study, experiments were performed to investigate the effect of low static magnetic field (SMF) on hatchability, development and survival of Culex pipiens mosquito immature under laboratory conditions. Egg-rafts of Cx. pipiens were exposed to SMF at different intensities of 5 mT, 25 mT and 50 mT for 20 minutes at temperature of 28±1 ºC. Hatching rate, hatching delay time and larval development significantly affected by SMF. The numbers of hatched larvae decreased with increasing SMF at 50 mT (133.33 ± 6.0) as compared to the control (302.23 ± 10.9). Also, hatching rate significantly lenghthened (P < 0.05) with high intensity of SMF. A total of 88.3% and 44.33% eggs hatched at 5 mT and 50 mT, respectively. For Cx. pipiens immatures, the duration time shortened and survival (%) reduced after exposure to high dose (50 mT) than to low dose (5 mT). We concluded that SMF affects the egg hatchability and immature development which could be applied as a strategy in mosquito control.

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“…The effects of magnetic fields on arlhropods specially insects were studied by Levenegood and Shinkle, 1960 and Biljana et He et al, 2012 and Giraldo et al, 2013 ), activity and aging of honeybees (Martin et q.1., 1988), behavior (Leucht,1984. Mosquito egg hatching (Pan and Liu, 2004) and egg hatchability and development of four economic insects (Hussein et ql., 2014) and metamotphosis of the meal worm beetle (Ermakov and Ledven, 2010), orientation of insects (Maeda et a\.,2008 ;Geo & Zhai,2010andPaz et a1.,2012 ) .…”

mentioning

confidence: 99%

Interaction of Static Magnetic Fields (SMF) with Biology of Tetranychus urticae Koch (Acari)

Ali

Hussein

Rady

2014

Acarines: Journal of the Egyptian Society of Acarology

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A laboratory experiment was conducted to study the effects of Bio-assay of the economic mit9' Tetranychus urticae Koch by the levels oi static magnetic field forces. Completely randomized experiment with three replicates was designed' Similar groups of egg s of T. Lrticae were exposed to the odd numbers of magnets ; 1,3 and 5 units ( 0.14-4.0 ml.t. ) and even numbers of magnets; 2,4 arld6 (2.6-4.24 ml.t. ) . Check was left without magnetizing. The observations included, egg hatchability percentage, incubation period, life cycle, longevity, life span, survivability, mean number of eggs / female urd r"* ratio of the 1 ,t generation. Results showed that there was a linear negative relationship between the force of magnetic field and the percentage of egg hatchability. Hatching eggs were decreased from 100 Yo h the check to 90'3% in 6 magnet unit's treatment. Also mean number of eggs and longevity decreased from 4.0 eggs &16.9 days to 2.3 eggs & ll.4 days; while incubation period and life cycle were prolonged depending on the number of magnet pieces from 7'0 & 15.7 days to 8.4 & 12.0 days, respectively of the above-mentioned magnets exposure.

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Effect of static magnetic fields (SMF) on the viability and fecundity of aphid Sitobion avenae (Homoptera: Aphididae) under laboratory conditions

Cited by 6 publications

References 36 publications

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

Bacillus amyloliquefaciens AK-12 Helps Rapeseed Establish a Protection against Brevicoryne brassicae

Influence of low static magnetic field (SMF) on immature development and survival of the mosquito, Culex pipiens (Diptera: Culicidae)

Interaction of Static Magnetic Fields (SMF) with Biology of Tetranychus urticae Koch (Acari)

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