Thermal tolerance of adult greenbug, Schizaphis graminum: Different role of sugars and polyols

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SAEIDI FATEMEH; Mikani Azam; MOHARRAMIPOUR SAEID

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Journal Paper

Paper Information

Journal: JOURNAL OF CROP PROTECTION Year:2021 | Volume:10 | Issue:1 Page(s): 0-0

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Title

Thermal tolerance of adult greenbug, Schizaphis graminum: Different role of sugars and polyols

Author(s)

SAEIDI FATEMEH | Mikani Azam | MOHARRAMIPOUR SAEID | Issue Writer Certificate

Keywords

Schizaphis graminum

cold tolerance

heat tolerance

glucose

mannitol

Abstract

The Greenbug Schizaphis graminum (Rondani), one of the major pests of cereals, overwinter as adults and nymphs in temperate regions. The aphid population increases in early spring as the weather conditions become favorable, but it gradually decreases in mid-June as air temperature rises. Adult aphid colonies were acclimated to measure cold tolerance at 20, 15, 10, 5, and 0 ° C for one week. In contrast, other colonies were acclimated to measure heat tolerance at 20, 25, and 30 ° C for one week and 35 ° C for two days. Then, the lowest temperature resulting in 50% mortality (LLT50) and the highest temperature resulting in 50% mortality (ULT50) of tested populations were defined. Moreover, changes of sugars and polyols were studied at the end of each thermal regime. The lowest LLT50 was-13. 2 ° C at 0 ° C and the highest ULT50 was 40. 1 ° C at 35 ° C. In the cold acclimation condition, glucose was the highest at 0 ° C and reached to 80. 9 μ mol/g f. w. However, in the heat acclimation condition, the mannitol was the highest at 35 ° C and reached to 43. 7 μ mol/g f. w. Findings indicate that high temperatures due to climate change could be a threat to aphid population size and distribution.

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APA: Copy

SAEIDI, FATEMEH, Mikani, Azam, & MOHARRAMIPOUR, SAEID. (2021). Thermal tolerance of adult greenbug, Schizaphis graminum: Different role of sugars and polyols. JOURNAL OF CROP PROTECTION, 10(1 ), 0-0. SID. https://sid.ir/paper/774379/en

Vancouver: Copy

SAEIDI FATEMEH, Mikani Azam, MOHARRAMIPOUR SAEID. Thermal tolerance of adult greenbug, Schizaphis graminum: Different role of sugars and polyols. JOURNAL OF CROP PROTECTION[Internet]. 2021;10(1 ):0-0. Available from: https://sid.ir/paper/774379/en

IEEE: Copy

FATEMEH SAEIDI, Azam Mikani, and SAEID MOHARRAMIPOUR, “Thermal tolerance of adult greenbug, Schizaphis graminum: Different role of sugars and polyols,” JOURNAL OF CROP PROTECTION, vol. 10, no. 1 , pp. 0–0, 2021, [Online]. Available: https://sid.ir/paper/774379/en

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