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RISS 인기검색어
- 검색키워드
- 저자 : Seyed Hossein Goldansaz (검색결과 3 건)
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Hossein Kishani Farahani,Howard Bell,Seyed Hossein Goldansaz 한국응용곤충학회 2012 Journal of Asia-Pacific Entomology Vol.15 No.4
The carob moth, Ectomyelois ceratoniae (Lepidoptera: Pyralidae), is the most important pest of pomegranate orchards (in terms of economic damage) within Iran, and hence, several control procedures, including biological methods of control, have been attempted as a means of controlling populations of this insect. This research was carried out in order to study the biology of Apanteles myeloenta (Hymenoptera: Braconidae), a larval parasitoid of the carob moth. Laboratory studies were conducted to determine larval developmental time, adult longevity, sex ratio, parasite progeny production, and host stage preference of A. myeloenta. At 25±1 °C, immature developmental time (egg to pupa; mean±SE) was 28.33±0.85 days and 27.46±0.37 days for male and females, respectively. Adult females survived on average 17.5±0.14, 11.7±0.22,3.4±0.18, and 2.8±0.12 days at 25 C when provided with honey and water, honey only, water only or no food source, respectively. The sex ratio (females to males) of A. myeloenta was 1:3.5 from hosts parasitized in the first instar, 1:3 for second instars and 1:2 for third instar carob moth larvae. Female A. myeloenta typically preferred to parasitize second instar over third or first instar. The oviposition activity peaked on the 7th and 8th days following emergence, when provided with honey, and 10% sucrose solution, respectively
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Delkash‑Roudsari Sahar,Hossein Goldansaz Seyed,Talebi-Jahromi Khalil,Abramson Charles I. 한국응용곤충학회 2024 Journal of Asia-Pacific Entomology Vol.27 No.1
Insecticides are a major tool for controlling pest species. Their widespread use results in damage to non-targeted insects, with honey bees particularly at risk. During foraging, honey bees learn and remember floral charac teristics that are associated with food. As insect pollinators, honey bees inadvertently contact chemicals which can have multiple negative impacts. The toxicity of two insecticides from different classes, ethion (47.79 mg a.i. L − 1 ) and hexaflumuron (500 mg a.i.L − 1 ), on learning, memory, and sensory perception were evaluated. We found that oral exposure to ethion had adverse effects on learned proboscis extension toward reward-associated odors and colors. In addition, we showed reduced sucrose consumption and sucrose responsiveness after expo sure. Hexaflumuron also impaired olfactory learning and memory and decreased responsiveness to sucrose and water. Exposure to sub-lethal concentration of the cholinergic organophosphate insecticide, ethion (47.79 mg a.i. L − 1 ), and the field-recommended concentration of hexaflumuron (500 mg a.i.L − 1 ), significantly impaired behavior involved in foraging. Our results suggest that several behavioral characteristics of honey bees be evaluated when testing an insecticide rather than relying on just one behavioral measure.
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Parvin Razavi Tabatabaei,,Vahid Hosseininaveh,Seyed Hossein Goldansaz,Khalil Talebi 한국응용곤충학회 2011 Journal of Asia-Pacific Entomology Vol.14 No.2
Digestive proteinases and carbohydrases of Ectomyelois ceratoniae (Zeller) larvae were investigated using appropriate substrates and inhibitors. Midgut pH in larvae was determined to be slightly alkaline. Midgut extracts showed optimum activity for proteolysis of hemoglobin at pH 9–12. Midgut proteinases also hydrolyzed the synthetic substrates of trypsin, chymotrypsin, and elastase at pH 8–11. Maximum digestive α-amylase activity was also observed at pH 8–11. However, optimum activity for α- and β-glucosidase occurred at pH 5–8. Alpha- and β-galactosidases optimum activities occurred at pH 5 and pH 6, respectively. Inhibitors of serine proteases were effective on midgut serine proteases (trypsin and chymotrypsin proteases). Zymogram analyses revealed at least five bands of total proteolytic activity in the larval midgut. Proteasespecific zymogram analyses revealed at least four, two, and one isozymes for trypsin-, chymotrypsin-, and elastase-like activities respectively. Two α-amylase isozymes were found in the midgut of fifth instar larvae and in the whole bodies of 1st through 5th instar larvae. Zymogram studies also revealed the presence of one and two bands of activity for β- and α-glucosidase, respectively. Recycling of α-amylase and proteases in the larval midgut was not complete. At least one isozyme of trypsin, chymotrypsin, elastase, and α-amylase were not recycled and were observed in the larval hindgut.
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