Papers by Maryam Pahlavan Yali
The cabbage aphid, Brevicoryne brassicae L. (Hem: Aphididae), is one of the most serious pests of... more The cabbage aphid, Brevicoryne brassicae L. (Hem: Aphididae), is one of the most serious pests of canola worldwide. In this research, the effects of Pseudomonas putida, salicylic acid (SA), and integrated application of both inducers were studied on the resistance of canola to B. brassicae. In free-choice situation, the number of B. brassicae attracted on canola plants under treatments containing P. putida and SA was significantly lower compared to control plants. In the life table study, pre-adult survival, longevity, reproductive period, and fecundity of this aphid were lowest on plants treated with P. putida + SA. The net reproductive rate (R 0), intrinsic rate of population increase (r), and finite rate of increase (λ) of B. brassicae decreased significantly in the following order: control (47.19 offspring, 0.293 and 1.340 day −1), P. putida (16.7 offspring, 0.238 and 1.269 day −1), SA (6.37 offspring, 0.163 and 1.178 day −1), and P. putida + SA (3.24 offspring, 0.112 and 1.119 day −1). Moreover, the beneficial effect of the integrated application of P. putida and SA on plant growth parameters was significantly evident in our study. The highest values of glucosinolates, total phenol, and flavonoids were recorded in P. putida + SA treatment. We concluded that canola plants treated with P. putida + SA are more resistant to the cabbage aphid. These findings demonstrated that SA integrated with P. putida on canola plants act effectively for reducing the population of B. brassicae and can be used in integrated management programs of this pest.
Common pistachio psyllid, is one of the most important pests of pistachio in Iran. In this study,... more Common pistachio psyllid, is one of the most important pests of pistachio in Iran. In this study, the effect of spirotetramate (SP), salicylic acid (SA), methanolic and n-hexane extracts of walnut husk (MW & NW, respectively), methanolic and nhexane extracts of dill seed (MD & ND, respectively) and the combined application spirotetramate with these compounds (SP + SA, SP + MW, SP + NW, SP + MD and SP + ND) were studied on pistachio psyllid population during two years. Distilled water was also considered as a control. The amount of secondary compounds (total phenol and flavonoid contents) in pistachio leaves in different treatments was determined. In the first year, the highest percentage of population reduction of pistachio psyllid was observed in combined treatment of spirotetramate and methanolic extract of dill seed (SP + MD) with an average of-91.26 ± 3.21 % and in the second year in methanolic extract of dill seed (MD) with an average of 36.70 ± 8.43% and SP + MD combined treatment with an average of-35.17 ± 17.9%. In both years, the combined use of n-hexanic extract of green walnut husk with spirotratram (SP + NW) reduced significantly the population of pistachio psyllids compared to the use of spirotratram alone. The amount of total phenol and flavonoid compounds in the leaves of pistachio trees treated with the studied compounds showed a significant difference. The highest level of total phenol was obtained in SP + MD treatment (75.48 ± 1.94) that showed significant differences with SP, MD and SP + ND treatments. The results of this study during two years showed that methanolic extract of dill seed in combination with spirotetramate (SP + MD) had the greatest effect in the population control of pistachio psylla nymphs and therefore can be considered in the integrated management programmes of this pest.
Current Microbiology, Jan 5, 2021
Brassica napus L. is a main oilseed crop cultivated around the world. Plant growth-promoting rhiz... more Brassica napus L. is a main oilseed crop cultivated around the world. Plant growth-promoting rhizobacteria (PGPR) are generally applied to a wide range of agricultural crops for the growth enhancement. In this study, an I-plate technique was used to investigate the plant growth-promoting activity of Pseudomonas putida (strain ATCC12633) on B. napus plants. The volatile organic compounds (VOCs) produced by P. putida were determined by gas chromatography-mass spectrometric (GC-MS) analysis. Furthermore, P. putida were evaluated for its efficacy to induce resistance-related enzymes like peroxidase (POD), phenylalanine ammonia-lyase (PAL), catalase (CAT), and other biochemical compounds such as proline (Pro) and hydrogen peroxide (H2O2) in B. napus plants. According to the results, P. putida significantly increased the growth of B. napus compared to control. The major VOCs released by P. putida were 2-Butynedioic acid, dimethyl ester, Dimethyl ester of 4,7-dimethylnaphthalene-1,2-dicarboxylic acid, N-[3-Methylaminopropyl]aziridine, Cyclododecane, and Hexadecanoic acid. B. napus seeds treatment with P. putida caused enhanced activities of POD, PAL, CAT, Pro, and H2O2 compared to control. So, the results of the present study showed that inoculation of B. napus with P. putida could serve as a useful tool for promoting the plant growth and inducing systemic resistance.
Journal of Biosafety, Mar 10, 2017
In this study, chemical compounds of Melia azedarach L. fruit and the insecticidal effect of extr... more In this study, chemical compounds of Melia azedarach L. fruit and the insecticidal effect of extract & powders was investigated on adult insects of Tribolium castaneum Herbst (Col. Tenebrionidae). Bioassays experiment with contact method was performed in a completely randomized design in laboratory conditions (temperature 25± 5 °C and relative humidity 65 ± 5%). Mortality percentage of T. castaneum by Melia fruit extract calculated at three concentrations (10, 50 and 80 g/ml) after 12, 24 & 36 hours and also by Melia fruit powder at four different dosage (3, 4, 5 and 6 gr) after 24, 48, 72 & 96 hours respectively. Significant differences were observed on mortality percentage of T. castaneum by Melia fruit extract and powder on different concentrations after each of the times. Based on the results, mortality increased with the passage of time. The lowest and highest mortality of T. castaneum was in use of M. azedarach fruit extract in 10 and 80 g/ml concentrations after 12 & 36 hours (17.50± 2.50 % & 81.75 ± 11.89%) respectively. Also the highest and lowest mortality rate of adult insects was obtained when used Melia fruit powder at a dose of 3 and 6 grams after 24 & 96 hours (3.33 ± 2.36% & 92.00± 5.89%) respectively. In this study, 52 chemical compounds of the Melia fruit were identified by GC/Mass.
Current Microbiology
Brassica napus L. is a main oilseed crop cultivated around the world. Plant growth-promoting rhiz... more Brassica napus L. is a main oilseed crop cultivated around the world. Plant growth-promoting rhizobacteria (PGPR) are generally applied to a wide range of agricultural crops for the growth enhancement. In this study, an I-plate technique was used to investigate the plant growth-promoting activity of Pseudomonas putida (strain ATCC12633) on B. napus plants. The volatile organic compounds (VOCs) produced by P. putida were determined by gas chromatography-mass spectrometric (GC-MS) analysis. Furthermore, P. putida were evaluated for its efficacy to induce resistance-related enzymes like peroxidase (POD), phenylalanine ammonia-lyase (PAL), catalase (CAT), and other biochemical compounds such as proline (Pro) and hydrogen peroxide (H2O2) in B. napus plants. According to the results, P. putida significantly increased the growth of B. napus compared to control. The major VOCs released by P. putida were 2-Butynedioic acid, dimethyl ester, Dimethyl ester of 4,7-dimethylnaphthalene-1,2-dicarboxylic acid, N-[3-Methylaminopropyl]aziridine, Cyclododecane, and Hexadecanoic acid. B. napus seeds treatment with P. putida caused enhanced activities of POD, PAL, CAT, Pro, and H2O2 compared to control. So, the results of the present study showed that inoculation of B. napus with P. putida could serve as a useful tool for promoting the plant growth and inducing systemic resistance.
Journal of Asia-Pacific Entomology
FIGURES 10–14. Stigmaeus longipilis (Female): 10. dorsum, 11. chelicerae, 12. palp, 13. subcapitu... more FIGURES 10–14. Stigmaeus longipilis (Female): 10. dorsum, 11. chelicerae, 12. palp, 13. subcapitulum, 14. venter.
FIGURES 6–9. Stigmaeus ueckermanni sp. nov. (Female): 6. leg I, 7. leg II, 8. leg III, 9. leg IV.
FIGURES 1–5. Stigmaeus ueckermanni sp. nov. (Female): 1. dorsum, 2. chelicerae, 3. Palp, 4. subca... more FIGURES 1–5. Stigmaeus ueckermanni sp. nov. (Female): 1. dorsum, 2. chelicerae, 3. Palp, 4. subcapitulum, 5. venter.
Journal of Plant Protection, 2021
Introduction: Greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), i... more Introduction: Greenhouse whitefly, Trialeurodes vaporariorum Westwood (Hemiptera: Aleyrodidae), is a serious pest of a wide range of plants, such as common bean, cucumber, tomato, pepper, lettuce, etc, in both field and greenhouse production. It typically feeds on the underside of leaves, sucking phloem sap from the plant, which causes both direct damage, by overall weakening the plant and reducing yield, and indirect damage, by excreting honeydew, on which sooty mold grows, as well as transmission of several plant viruses. The widespread use of insecticides to control T. vaporariorum has resulted in developing resistance to the insecticides and affected human’s health and safety. The utilization of plant extract and elicitors is an environmentally safe method that is used in the control recently. Therefore, alternative control strategies are required to minimize the harmful effects of insecticides. In order to control this pest, environmentally friendly methods, especially of plant...
Common pistachio psyllid, is one of the most important pests of pistachio in Iran. In this study,... more Common pistachio psyllid, is one of the most important pests of pistachio in Iran. In this study, the effect of spirotetramate (SP), salicylic acid (SA), methanolic and n-hexane extracts of walnut husk (MW & NW, respectively), methanolic and n-hexane extracts of dill seed (MD & ND, respectively) and the combined application of spirotetramate with these compounds (SP + SA, SP + MW, SP + NW, SP + MD and SP + ND) were studied on pistachio psyllid population during two years. Distilled water was also considered as control. The amount of secondary compounds (total phenol and flavonoid contents) in pistachio leaves in different treatments was determined. In the first year, the highest percentage of population reduction of pistachio psyllid was observed in combined treatment of spirotetramate and methanolic extract of dill seed (SP + MD) with an average of -91.26 ± 3.21 % and in the second year in methanolic extract of dill seed (MD) with an average of 36.70 ± 8.43% and SP + MD combined tr...
شهوژپ نیا رد ، بیکرت هرشح تیلباق و خلت نوتیز هویم ییایمیش یاه آ ردوپ و هراصع یشک هشپش لماک هرشح ی... more شهوژپ نیا رد ، بیکرت هرشح تیلباق و خلت نوتیز هویم ییایمیش یاه آ ردوپ و هراصع یشک هشپش لماک هرشح یور ن و هعلاطم درآ شیامزآ یاه هب یجنس تسیز ب یسامت شور ه تروص حرط لماک یفداصت یامد رد 5 ± 25 هجرد سویسلس و تبوطر یبسن 5 ± 65 دصرد دصرد .دش ماجنا گرم و تفآ لماک هرشح ریم ، هراصع دربراک اب خلت نوتیز هویم هس رد خلت نوتیز هویم ردوپ و نامز هس رد و تظلغ ، زود راهچ رد ، دش هبساحم نامز راهچ تشذگ زا سپ . فلاتخا ینعم یگدنشک دصرد رد یراد تفآ یور ،ردوپ و هراصع تظلغ رد فلتخم یاه نامز زا کیره زا سپ دروم یاه ،جیاتن ساسا رب .دش هدهاشم هعلاطم گرم ریم و اب و تظلغ شیازفا تشذگ نامز شیازفا و نیرتمک .تفای نیرتشیب فلت نازیم تا ، هب خلت نوتیز هویم هراصع دربراک اب تظلغ رد بیترت 10 و 80 یلیم رب مرگورکیم رتیل زا سپ 12 و 36 ( تعاس 50 / 2 ± 5 / 17 دصرد و 89 / 11 ± 75 / 81 دصرد ) نییاپ و نیرتلااب نینچمه .دوب دربراک ماگنه هب تافلت نازیم نیرت ردوپ هویم خلت نوتیز ، هب رد بیترت زود 3 و 6 مرگ زا سپ 24 و 96 تعاس ( 36 / 2 ± 33 / 3 دصرد و 89 / 5 ± 00 / 92 دصرد هب ) .دمآ تسد هولاعب 52 لیکشت ییایمیش بیکرت خلت نوتیز هویم هدنهد ،...
Journal of Agricultural Science and Technology, 2018
Greenbug, Schizaphis graminum (Rondani), is the main pest of wheat that can considerably limit pr... more Greenbug, Schizaphis graminum (Rondani), is the main pest of wheat that can considerably limit profitable crop production, either through direct feeding or via transmission of plant pathogenic viruses. One of the most effective approaches of pest control is the use of resistant cultivars and lines. Based on the initial screening test of 35 wheat cultivars and lines, we selected five cultivars (Pishtaz, Omid, Yavaras, Akbari, and Bahar) and four lines (R1-10, R2-9, R3-16, and R3-17) with different levels of resistance to S. graminum for antixenosis and antibiosis experiments. In the antixenosis test, the number of S. graminum attracted on R1-10 was the lowest after 24, 48, and 72 hours. In life table study, S. graminum reared on Yavaras and R1-10 had the lower survival rate, fecundity, and reproductive period compared with other host plans tested. Values of the intrinsic rate of natural increase (rm), finite rate of increase (λ), net Reproductive rate (R0), and Doubling Time (DT) ind...
Tetranychus urticae koch. (Acari: Tetranychidae) is one of the important pests of strawberry gree... more Tetranychus urticae koch. (Acari: Tetranychidae) is one of the important pests of strawberry greenhouses in Kerman province. Chemical control is one of the most common strategies for management of spider mites. Silicon in plants can induce high mechanical stability and increase plant defense against pests. The present study was carried out to investigate the toxic effects of Spiromesifen 24% SC, Abamectin 1.8% EC and potassium silicate 2lit/ha against all mobile stages of pest on Paros cultivar of strawberry. Distilled water was used as a control. Treatments were sprayed on both surfaces of strawberry leaves. An experiment was conducted in a hydroponic greenhouse (temperature: 25 ± 1 ̊C, RH: 50± 5% and photoperiod: 14L: 10D) based on a completely randomized design at 8 repetitions. Onesample T-test was done for each treatment between pest density before and after spraying in SPSS v22 software. Also, data on density among treatments analyzed by the one-way ANOVA and the comparison of...
International Journal of Tropical Insect Science, 2020
The efficiency of natural enemies may be affected by different agricultural practices. We investi... more The efficiency of natural enemies may be affected by different agricultural practices. We investigated the functional response of the seven-spot ladybird, Coccinella septempunctata L. adults to different densities of the cabbage aphid, Brevicoryne brassicae L., reared on four treated canola plants including: control, humic acid (HA), salicylic acid (SA), and a mixed application of humic acid and salicylic acid (HA + SA). Based on logistic regression analysis, C. septempunctata adults exhibited a type II functional response in all treatments. The higher attack rate (a) and shorter handling time (T h) of adult males were significantly obtained in SA. The handling time of adult females on different treatments were not significant, but their attack rates were significantly higher in HA + SA and SA. Based on the results, more aphids were consumed in SA and HA + SA. Based on the results, the amount of total flavonoid contents (TFC) and phenolic contents (TPC) in canola leaves was not significant, but the levels of total Glucosinolates (GLS) were significantly high in HA + SA and SA. The results of this study revealed that SA and HA + SA can positively affect the functional response of C. septempunctata to B. brassicae.
Bulletin of Entomological Research, 2018
The cabbage aphid, Brevicoryne brassicae L. (Hem: Aphididae), is an important pest of canola that... more The cabbage aphid, Brevicoryne brassicae L. (Hem: Aphididae), is an important pest of canola that can considerably limit profitable crop production either through direct feeding or via transmission of plant pathogenic viruses. One of the most effective approaches of pest control is the use of biostimulants. In this study, the effects of humic acid, plant growth-promoting rhizobacteria (PGPR), and integrated application of both compounds were investigated on life table parameters of B. brassicae, and the tolerance of canola to this pest. B. brassicae reared on plants treated with these compounds had the lower longevity, fecundity, and reproductive period compared with control treatment. The intrinsic rate of natural increase (r) and finite rate of increase (λ) were lowest on PGPR treatment (0.181 ± 0.004 day−1 and 1.198 ± 0.004 day−1, respectively) and highest on control (0.202 ± 0.005 day−1 and 1.224 ± 0.006 day−1, respectively). The net reproductive rate (R0) under treatments of hu...
Bulletin of Entomological Research, 2020
The cabbage aphid,Brevicoryne brassicaeL. (Hem: Aphididae), is one of the most serious pests of c... more The cabbage aphid,Brevicoryne brassicaeL. (Hem: Aphididae), is one of the most serious pests of canola worldwide. In this research, the effects ofPseudomonas putida, salicylic acid (SA), and integrated application of both inducers were studied on the resistance of canola toB. brassicae. In free-choice situation, the number ofB. brassicaeattracted on canola plants under treatments containingP. putidaand SA was significantly lower compared to control plants. In the life table study, pre-adult survival, longevity, reproductive period, and fecundity of this aphid were lowest on plants treated withP. putida+ SA. The net reproductive rate (R0), intrinsic rate of population increase (r), and finite rate of increase (λ) ofB. brassicaedecreased significantly in the following order: control (47.19 offspring, 0.293 and 1.340 day−1),P. putida(16.7 offspring, 0.238 and 1.269 day−1), SA (6.37 offspring, 0.163 and 1.178 day−1), andP. putida+ SA (3.24 offspring, 0.112 and 1.119 day−1). Moreover, th...
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Papers by Maryam Pahlavan Yali