Insect-facilitated propagation of mycotoxic fungi in grain storages: association of Sitotroga cerealella Olivier with Aspergillus flavus link
文献类型: 外文期刊
作者: Khan, A. A. 1 ; Umar, U. 2 ; Ejaz, S. 3 ; Riaz, H. 2 ; Batool, M. 1 ; Chen, T. 4 ; Ahmad, F. 5 ; Saeed, Q. 1 ;
作者机构: 1.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Entomol, Multan 60800, Punjab, Pakistan
2.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Plant Pathol, Multan 60800, Punjab, Pakistan
3.Bahauddin Zakariya Univ, Fac Agr Sci & Technol, Dept Hort, Multan 60800, Punjab, Pakistan
4.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangzhou 10640, Peoples R China
5.COMSATS Univ Islamabad CUI, Dept Biosci, Pk Rd, Islamabad 45550, ICT, Pakistan
关键词: Stored wheat; Sitotroga cerealella; A; flavus; Mycotoxins; Fungal dissemination; Insect-fungal infestation
期刊名称:INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY ( 影响因子:3.519; 五年影响因子:3.463 )
ISSN: 1735-1472
年卷期:
页码:
收录情况: SCI
摘要: During storage, a significant quantity of wheat is lost due to insect and fungal pest complexes, where insects possibly disseminate the mycotoxic fungal pests. We have studied the role Sitotroga cerealella, Tribolium castaneum and Rhyzopertha dominica in propagating mycotoxic fungi in stored wheat grains. We found that 85% of wheat collected from steel and brick-walled grain silos were contaminated with Alternaria alternata, Alternaria infectoria, Aspergillus flavus and Aspergillus tenuissima, and these species were also isolated from the bodies of S. cerealella adults. Our results clearly demonstrated that the prevalence of A. flavus was higher when S. cerealella was co-infesting the grain along with fungal species. We have noticed that 75% of adult moths (both male and female) were attracted toward the fungal contaminated seeds as compared to sterilized seeds even after two weeks of incubation. This proportion increased to more than 87% in just four weeks after fungal infestation. This study suggests further investigation to understand the chemical basis of identified mutualistic association between A. flavus and S. cerealella, for efficient management of grain losses due to insect-fungal pest complexes.
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