PMID- 34198747 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210714 IS - 2076-0817 (Print) IS - 2076-0817 (Electronic) IS - 2076-0817 (Linking) VI - 10 IP - 6 DP - 2021 Jun 5 TI - Insights into Temperature and Hypoxia Tolerance in Cowpea Weevil via HIF-1. LID - 10.3390/pathogens10060704 [doi] LID - 704 AB - Cowpea weevil (Callosobruchus maculatus) is a major pest that leads to severe damage of the stored leguminous grains. Several management approaches, including physical barriers, biological or chemical methods, are used for controlling bruchid in cowpea. These methods usually target the metabolically active state of weevil. However, it becomes less effective at early stages as egg, larva, or pupa under low temperature and oxygen conditions. Since hypoxia-inducible factor-1 (HIF-1) is known to coordinate multiple gene responses to low oxygen or low temperature signals, we examined the HIF-1alpha gene expression under low temperature and hypoxic treatments. At -20 degrees C, it took 4 h to reduce the survival rate for eggs, larvae, and pupae down to 10%, while at 4 degrees C and 15 degrees C, the survival rate remained higher than 50% even after 128 h as HIF-1alpha gene expression peaked at 15 degrees C. Moreover, HIF-1 protein offers a valuable target for early stage pest control complementary to traditional methods. In particular, HIF-1 inhibitor camptothecin (CPT), one of the five HIF-1 inhibitors examined, achieved a very significant reduction of 96.2% and 95.5% relative to the control in weevil survival rate into adult at 4 degrees C and 30 degrees C, respectively. Our study can be used as one model system for drug development in virus infections and human cancer. FAU - Liu, Qin AU - Liu Q AD - School of Life Sciences, Jianghan University, Wuhan 430056, China. FAU - Liu, Zhichao AU - Liu Z AD - School of Biological Information, Chongqing University of Posts and Telecommunications, Chongqing 400065, China. FAU - Gao, Zhipeng AU - Gao Z AD - School of Life Sciences, Jianghan University, Wuhan 430056, China. FAU - Chen, Guanjun AU - Chen G AD - School of Life Sciences, Jianghan University, Wuhan 430056, China. FAU - Liu, Changyan AU - Liu C AD - Institute of Food Crop, Hubei Academy of Agricultural Sciences, Wuhan 430064, China. FAU - Wan, Zhenghuang AU - Wan Z AD - Institute of Food Crop, Hubei Academy of Agricultural Sciences, Wuhan 430064, China. FAU - Chen, Chanyou AU - Chen C AD - School of Life Sciences, Jianghan University, Wuhan 430056, China. FAU - Zeng, Chen AU - Zeng C AUID- ORCID: 0000-0001-7778-6388 AD - Department of Physics, The George Washington University, Washington, DC 20052, USA. FAU - Zhao, Yunjie AU - Zhao Y AD - Institute of Biophysics and Department of Physics, Central China Normal University, Wuhan 430079, China. FAU - Pan, Lei AU - Pan L AD - School of Life Sciences, Jianghan University, Wuhan 430056, China. LA - eng GR - 11704140/National Natural Science Foundation of China/ GR - 201708420039/China Scholarship Council Fund/ GR - CCNU20TS004/self-determined research funds of CCNU from the colleges' basic research and operation of MOE/ PT - Journal Article DEP - 20210605 PL - Switzerland TA - Pathogens JT - Pathogens (Basel, Switzerland) JID - 101596317 PMC - PMC8228136 OTO - NOTNLM OT - HIF-1alpha OT - cowpea weevil OT - inhibitor screening OT - mRNA transcript COIS- All authors declare no conflict of interest in this paper. EDAT- 2021/07/03 06:00 MHDA- 2021/07/03 06:01 PMCR- 2021/06/05 CRDT- 2021/07/02 01:01 PHST- 2021/04/25 00:00 [received] PHST- 2021/05/29 00:00 [revised] PHST- 2021/06/01 00:00 [accepted] PHST- 2021/07/02 01:01 [entrez] PHST- 2021/07/03 06:00 [pubmed] PHST- 2021/07/03 06:01 [medline] PHST- 2021/06/05 00:00 [pmc-release] AID - pathogens10060704 [pii] AID - pathogens-10-00704 [pii] AID - 10.3390/pathogens10060704 [doi] PST - epublish SO - Pathogens. 2021 Jun 5;10(6):704. doi: 10.3390/pathogens10060704.