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在针对两种寄主甲虫时寄生蜂毒力的变化。

Variation in Parasitoid Virulence of during the Targeting of Two Host Beetles.

作者信息

Zhang Hua-Jian, Lin Ya-Ping, Li Hong-Yu, Wang Rui, Fu Lang, Jia Qing-Chen, Hou You-Ming, Tang Bao-Zhen

机构信息

State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

Key Lab of Biopesticide and Chemical Biology, Ministry of Education & Fujian Provincial Key Laboratory of Insect Ecology, Department of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

出版信息

Int J Mol Sci. 2021 Mar 30;22(7):3581. doi: 10.3390/ijms22073581.

DOI:10.3390/ijms22073581
PMID:33808261
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8036858/
Abstract

In host-parasitoid interactions, antagonistic relationship drives parasitoids to vary in virulence in facing different hosts, which makes these systems excellent models for stress-induced evolutionary studies. Venom compositions varied between two strains of , Tb-Bl and Tb-On. Tb-Bl targets pupae as hosts, and Tb-On is a sub-population of Tb-Bl, which has been experimentally adapted to a new host, . Aiming to examine variation in parasitoid virulence of the two strains toward two hosts, we used reciprocal injection experiments to compare effect of venom/ovarian fluids from the two strains on cytotoxicity, inhibition of immunity and fat body lysis of the two hosts. We found that Tb-Onvenom was more virulent towards plasmatocyte spreading, granulocyte function and phenoloxidase activity than Tb-Blvenom. Tb-Blovary was able to suppress encapsulation and phagocytosis in both hosts; however, Tb-Onovary inhibition targeted only . Our data suggest that the venom undergoes rapid evolution when facing different hosts, and that the wasp has good evolutionary plasticity.

摘要

在宿主 - 寄生蜂的相互作用中,对抗关系促使寄生蜂在面对不同宿主时毒力发生变化,这使得这些系统成为应激诱导进化研究的优秀模型。Tb - Bl和Tb - On这两种 菌株的毒液成分有所不同。Tb - Bl以 蛹作为宿主,而Tb - On是Tb - Bl的一个亚种群,它已通过实验适应了新宿主 。为了研究这两种菌株对两种宿主的寄生蜂毒力差异,我们采用相互注射实验来比较两种菌株的毒液/卵巢液对两种宿主的细胞毒性、免疫抑制和脂肪体溶解的影响。我们发现,Tb - On毒液对浆血细胞扩散、粒细胞功能和酚氧化酶活性的毒力比Tb - Bl毒液更强。Tb - Bl卵巢能够抑制两种宿主中的包囊化和吞噬作用;然而,Tb - On卵巢的抑制作用仅针对 。我们的数据表明,毒液在面对不同宿主时会经历快速进化,并且黄蜂具有良好的进化可塑性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/fe016687291e/ijms-22-03581-g007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/9d1c5dec5615/ijms-22-03581-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/f1321c7647d1/ijms-22-03581-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/bfa1a97c089c/ijms-22-03581-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/fe016687291e/ijms-22-03581-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/36120ec2ffa1/ijms-22-03581-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/26c8cd9dfbf2/ijms-22-03581-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/3bfcc09d5894/ijms-22-03581-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/9d1c5dec5615/ijms-22-03581-g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/682a/8036858/bfa1a97c089c/ijms-22-03581-g006.jpg
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