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PLoS One

Title:		"Toxicity and sublethal effects of two plant allelochemicals on the demographical traits of cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae)"
Author(s):		Ma K; Tang Q; Liang P; Xia J; Zhang B; Gao X;
Address:		"Department of Entomology, China Agricultural University, Beijing, China. College of Resources and Environment, Henan Institute of Science and Technology, Xinxiang, China"
Journal Title:		PLoS One
Year:		2019
Volume:		20191119
Issue:		11
Page Number:		e0221646 -
DOI:		10.1371/journal.pone.0221646
ISSN/ISBN:		1932-6203 (Electronic) 1932-6203 (Linking)
Abstract:		"Plant allelochemicals are a group of secondary metabolites produced by plants to defend against herbivore. The mortality of two plant allelochemicals (tannic acid and gossypol) on the cotton aphid, Aphis gossypii Glover (Hemiptera: Aphididae), were investigated using feeding assays and the sublethal effects were evaluated using the age-stage, two-sex life table approach. Tannic acid and gossypol have deleterious effects on A. gossypii, and as the concentrations increased, the mortality of cotton aphid increased. The life history traits of A. gossypii including the developmental duration of each nymph stage, the longevity, oviposition days, total preadult survival rate and adult pre-oviposition period were not significantly affected by sublethal concentration of tannic acid (20 mg/L) and gossypol (50 mg/L), while the population parameters (r, lambda and R0) were significantly affected by these two plant allelochemicals. Furthermore, tannic acid can increase the pre-adult duration time and TPOP but reduce the fecundity of A. gossypii significantly compared to the control and gossypol treatment groups. These results are helpful for comprehensively understanding the effects of plant allelochemicals on A. gossypii"
Keywords:		Age Factors Animals Aphids/drug effects/growth & development/*metabolism Gossypol/*metabolism/*toxicity Pheromones/metabolism/toxicity Plants/chemistry/metabolism Sex Factors Tannins/*metabolism/*toxicity;
Notes:		"MedlineMa, Kangsheng Tang, Qiuling Liang, Pingzhuo Xia, Jin Zhang, Baizhong Gao, Xiwu eng Research Support, Non-U.S. Gov't 2019/11/20 PLoS One. 2019 Nov 19; 14(11):e0221646. doi: 10.1371/journal.pone.0221646. eCollection 2019"